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Simulations of equilibrium thermal and epithermal neutron flux spectra for the Moon have been studied to determine their chemical information content. Most of this information resides in a single parameter, the ratio of macroscopic absorption to energy‐loss cr…
openalex
W. C. Feldman, D. J. Lawrence, R. C. Elphic, D. T. Vaniman 等
2000-08-01
置信度 0.72
PlagioclaseNeutron temperatureFlux (metallurgy)NeutronNeutron capture
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The greatest mystery in science is the origin of life and the greatest discovery in science will be the discovery of life beyond earth, if at all extt-aterrestriaF life would ever be discovered.ft is in this context that I read with interest the research commu…
openalex
P. V. Sukumar, V. C. Tewari, Abhayanand Singh Maurya
2002-11-01
置信度 0.72
MeteoriteAstrobiologyMars Exploration ProgramAsteroidSolar System
-
Abstract Meteorite collection inventories show that many related meteorite groups have very different numerical abundances (e.g., lunar versus Martian meteorites; Eagle Station pallasites versus main‐group pallasites; eucrites versus diogenites; ungrouped Anta…
openalex
Alan E. Rubin
2025-05-22
置信度 0.72
MeteoriteMeteoroidAstrobiologyGeologyAchondrite
-
Measurements of volatile abundances at the martian surface (e.g. H2O, Cl, CO2, CH4) are a priority for the latest generation of martian rovers (Curiosity and ExoMars) due to the astrobiological importance of these compounds. Mars is a prime candidate to find w…
openalex
Aimee Smith
2018-01-01
置信度 0.72
MartianMeteoriteAstrobiologyGeochemistryMars Exploration Program
-
Abstract A bright fireball was seen at 4:46 a.m. CET on November 19, 2020, over Austria, and also eye witnessed in Italy and Germany. The resulting Kindberg meteorite was the fifth well‐approved meteorite fall in Austria, and all rocks represent ordinary chond…
openalex
A. Bischoff, Maximilian P. Reitze, J. Roszjar, Markus Patzek 等
2025-11-24
置信度 0.72
MeteoriteChondriteOlivineGeologyBreccia
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In situ resource utilisation (ISRU) refers to the extraction and use of local materials, and numerous ISRU techniques have been proposed for use on the Moon. Hydrogen reduction of iron oxide-bearing minerals in the lunar regolith, such as ilmenite, has long be…
openalex
Hannah Sargeant, S. J. Barber, M. Anand, F. A. J. Abernethy 等
2021-06-18
置信度 0.72
RegolithAstrobiologyIlmeniteHydrogenLunar soil
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Martian low‐albedo surfaces (defined here as surfaces with Mars Global Surveyor Thermal Emission Spectrometer (MGS‐TES) albedo values ≤0.15) were reexamined for regional variations in spectral response. Low‐albedo regions exhibit spatially coherent variations …
openalex
A. D. Rogers, J. L. Bandfield, P. R. Christensen
2007-02-01
置信度 0.72
Martian surfaceAlbedo (alchemy)MartianMars Exploration ProgramGeology
-
Analysis of lunar laser ranging and seismic data has yielded evidence that has been interpreted to indicate a molten zone in the lowermost mantle overlying a fluid core. Such a zone provides strong constraints on models of lunar thermal evolution. Here we dete…
openalex
A. Khan, J. A. D. Connolly, Anne Pommier, Jérõme Noir
2014-09-18
置信度 0.72
GeologyMantle (geology)GeophysicsSolidusPetrology
-
Laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), which is a rapidly developing analytical technique for the analyses of trace elements and isotopes, plays an important role in advancing the study of Earth science, especially with respec…
openalex
Yongsheng Liu, Zhao Chu Hu, Ming Li, Shan Gao
2013-06-11
置信度 0.72
Elemental analysisInductively coupled plasma mass spectrometryAnalyteMass spectrometryMatrix (chemical analysis)
-
Ramlat Fasad (RF) 532 is a lunar meteorite recovered from the desert plains of Oman in 2018 during systematic searching. Our study shows that RF 532 is a monomict gabbro breccia, dominantly composed of anorthitic plagioclase and augitic to pigeonitic pyroxene.…
openalex
Bre H. Oliveira, J. F. Snape, Romain Tartèse, Heejin Jeon 等
2025-10-06
置信度 0.72
MeteoriteGeologyBasaltGeochemistryLava
-
Precise crystallisation ages have been determined for a range of Apollo basalts from Pb-Pb isochrons generated using Secondary Ion Mass Spectrometry (SIMS) analyses of multiple accessory phases including K-feldspar, K-rich glass and phosphates. The samples ana…
openalex
J. F. Snape, A. A. Nemchin, Martin J. Whitehouse, Renaud Merle 等
2019-07-31
置信度 0.72
BasaltGeologyApolloGeochemistryIsochron
-
Abstract Mg‐rich olivine is a ubiquitous phase in type I porphyritic chondrules in various classes of chondritic meteorites. The anhedral shape of olivine grains, their size distribution, as well as their poikilitic textures within low‐Ca pyroxene suggest that…
openalex
Camille Soulié, G. Libourel, Laurent Tissandier
2016-11-11
置信度 0.72
OlivineForsteriteChondruleDissolutionPyroxene
-
This study investigates the mineral composition of the lunar Dryden Crater using Moon Mineralogy Mapper (M3) data. A RGB false-color composite reveals distinct pyroxene, anorthosite, and possibly spinel distribution patterns. Orthopyroxenes, excavated from dee…
openalex
Iskren Ivanov, Lachezar Filchev
2025-06-19
置信度 0.72
AnorthositePyroxeneHyperspectral imagingImpact craterGeology
-
Iron-bearing nanominerals such as ferrihydrite, schwertmannite, and green rust behave as metastable precursors leading to the formation of more thermodynamically stable iron mineral phases (e.g., jarosite, goethite, hematite, and magnetite). However, this tran…
openalex
Manuel A. Caraballo, María P. Asta, Jeffrey Paulo H. Perez, Michael F. Hochella
2021-12-01
置信度 0.72
SchwertmanniteGoethiteFerrihydriteHematiteMagnetite
-
Abstract Magma oceans were once ubiquitous in the early solar system, setting up the initial conditions for different evolutionary paths of planetary bodies. In particular, the redox conditions of magma oceans may have profound influence on the redox state of …
openalex
Jie Deng, Zhixue Du, Bijaya B. Karki, Dipta B. Ghosh 等
2020-04-24
置信度 0.72
Mineral redox bufferEarly EarthMars Exploration ProgramAstrobiologyRedox
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Abstract The spectral analysis of CM meteorites can help to constrain the mineralogical composition of their parent body, the C‐type asteroids. The CM2 NWA 12184 was spectrally examined employing seven complementary techniques at different spatial resolutions,…
openalex
A. Galiano, Fabrizio Dirri, Marco Ferrari, Cristian Carli 等
2025-01-24
置信度 0.72
Raman spectroscopyChondriteChemistryPhysicsAstrobiology
-
Abstract H2O and OH are readily detected in hydrated minerals in CM chondrites via reflectance spectroscopy due to their characteristic vibration absorptions at infrared wavelengths. Previous spectroscopic work on bulk powdered CM chondrites has shown that spe…
openalex
Cody Schultz, B. A. Anzures, R. E. Milliken, Taki Hiroi 等
2023-01-12
置信度 0.72
ChondriteMeteoriteAbsorption (acoustics)Carbonaceous chondriteSpectroscopy
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Abstract The Tanpopo experiment is Japan's first astrobiology mission aboard the Japanese Experiment Module Exposed Facility on the International Space Station. The Tanpopo‐1 mission exposed silica aerogel panels to low Earth orbit from 2015 to 2016 to capture…
openalex
T. Noguchi, Akira Miyake, Hikaru Yabuta, Yoko Kebukawa 等
2025-02-19
置信度 0.72
Terminal (telecommunication)International Space StationSpace (punctuation)MineralogyGeology
-
Abstract— Rock magnetic and magnetic mineralogy data are presented from the International Continental Scientific Drilling Program (ICDP) drill cores LB‐07A and LB‐08A of the Bosumtwi impact structure in order to understand the magnetic behavior of impact and t…
openalex
Agnes Kontny, Tiiu Elbra, Jana Just, L. J. Pesonen 等
2007-05-01
置信度 0.72
RemanenceGeologyPyrrhotitePetrographyMagnetite
-
Abstract Primary magmas form by partial melting in the mantle of a terrestrial planet and represent the starting material for building its crust. The compositions of primary magmas are critical for understanding the thermal history of planetary interiors, as t…
openalex
Juan David Hernández‐Montenegro, Paul D. Asimow, Claude Herzberg
2024-11-01
置信度 0.72
PetrogenesisMars Exploration ProgramMartianAstrobiologyGeology
-
openalex
A. H. Delsemme, N. Richter, J. Rahe, E. Anders 等
1976-01-01
置信度 0.72
AstrobiologyMeteoriteAsteroidPhysics
-
Abstract Kryzaite, a new mineral with the ideal formula Na4(MgCr)(PO4)3 and the empirical formula Na3.93(Mg0.94Fe2+0.07Mn2+0.03 Cr3+1.02)Σ2.06P2.99O12 is the third new phosphate to be discovered in the graphite-troilite nodules of the iron meteorite Morasko, w…
openalex
Evgeny V. Galuskin, Andrzej Muszyński, Taras L. Panikorovskii, Joachim Kusz 等
2026-04-22
置信度 0.72
MeteoriteFast ion conductorRaman spectroscopyOrthosilicateMineral
-
REE contents in whole-rock samples and constituent minerals of the Qianlishan and Baerzhe granites from China were determined using three analytical methods (ICP-AES, ICP-MS, and ID-TIMS). The REE abundance patterns of the granites show the M-type tetrad effec…
openalex
Zhao Zhenhua, Xiong Xiaolin, Han Xiaodong, Wang Yixian 等
2002-01-01
置信度 0.72
TetradGeochemistryFractional crystallization (geology)GeologyCrystallization
-
The studied garnet porphyroblasts occur within metamorphic rocks consisting of schists with variable mineralogical compositions in the Ekinözü (Kahramanmaraş) region. The porphyroblasts crystallized in pentagonal dodecahedron forms, ranging in size from 0.5 to…
openalex
Ufuk Ören, Tamer Koralay
2025-12-12
置信度 0.72
MetamorphismGeologyMetamorphic rockChloriteAlmandine
-
Abstract— Bulk chemical compositions of the shergottite basalts provide important constraints on magma genesis and mantle processes in Mars. Abundances of many major and trace elements in the shergottites covary in 2 distinct groups: Group 1 (Gl) includes most…
openalex
A. H. Treiman
2003-12-01
置信度 0.72
BasaltFractional crystallization (geology)MetasomatismGeologyPetrogenesis
-
High seismic velocity gradients in the transition zone have been attributed to large pressure derivatives of the elastic moduli of transition zone minerals, such as majorite‐garnet. Here we present Brillouin scattering measurements of the elasticity of polycry…
openalex
Stanislav Sinogeikin, Jay D. Bass
2002-01-01
置信度 0.72
PyropeTransition zoneSilicate perovskiteElasticity (physics)Mineralogy
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Abstract The Greater Thaumasia region consists of three chemical provinces that include Syria, Solis, and Thaumasia Planae, the Corprates Rise, part of the Thaumasia Highlands, and the transition zone northwest of the Argyre basin. Chemical signatures obtained…
openalex
D. R. Hood, Taylor Judice, S. Karunatillake, A. D. Rogers 等
2016-09-01
置信度 0.72
NoachianHesperianGeologyMars Exploration ProgramMartian
-
Abstract— Four particles extracted from track 80 at different penetration depths have been studied by analytical transmission electron microscopy (ATEM). Regardless of their positions within the track, the samples present a comparable microstructure made of a …
openalex
Julien Stodolna, Damien Jacob, Hugues Leroux
2009-10-01
置信度 0.72
Interplanetary dust cloudHypervelocityMeteoriteTransmission electron microscopyMaterials science
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Abstract Thermoluminescence (TL) dating has been used to determine the age of the meteorite impact crater at Gebel Kamil (Egyptian Sahara). Previous studies suggested that the 45 m diameter structure was produced by a fall in recent times (less than 5000 years…
openalex
G. P. Sighinolfi, Emanuela Sibilia, Gabriele Contini, M. Martini
2015-01-26
置信度 0.72
Impact craterEjectaGeologyImpact structureMeteorite
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This study reports sulfide mineralization in Kadikhel Valley, Upper Dir region, for the first time, located in the western Kohistan Island Arc, north Pakistan. The area is poorly explored for exploration, mineral identification, ore characterization, and proce…
openalex
Israr Ud Din, Mohammad Tahir Shah, Liaqat Ali, Asghar Ali 等
2025-08-15
置信度 0.72
GeologyMineralization (soil science)GeochemistrySulfideChemistry
-
Large volumes of liquid water transiently existed on the surface of Mars more than 3 billion years ago. Much of this water is hypothesized to have been sequestered in the subsurface or lost to space. We use rock physics models and Bayesian inversion to identif…
openalex
Vashan Wright, Matthias Morzfeld, Michael Manga
2024-08-12
置信度 0.72
MartianCrustGeologyLiquid waterMars Exploration Program
-
openalex
Dewashish Upadhyay, M. Raith, Klaus Mezger, A. Bhattacharya 等
2006-02-24
置信度 0.72
GeologyGeochemistryRiftCratonGranulite
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Over long timescales, space weathering processes can modify the compositions of surface materials on the Moon. To assess the effects of space weathering of lunar soils, we study Si isotopes of Chang’E-5 (CE-5) and Chang’E-6 (CE-6) returned samples, and lunar m…
openalex
Hui-Yan Zhang, Huimin Yu, Haolan Tang, Yu-Chao Lin 等
2025-05-07
置信度 0.72
WeatheringIsotopeSpace (punctuation)AstrobiologyGeochemistry
-
Abstract Amino acids are an extremely heterogeneous group of biomolecules essential for life on Earth. Their biosignatures are expected to be easily degraded on the Martian surface as the absence of a thick atmosphere and a magnetosphere leads to most of the s…
openalex
Miguel Arribas Tiemblo, Pedro Rayo-Pizarroso, M. P. Martín‐Redondo, Felipe Gómez
2025-10-30
置信度 0.72
Amino acidMartian surfaceChemistryMartianBiomolecule
-
Short-lived radionuclides (SLRs) once present in the solar nebula can be used as probes of the formation environment of our Solar System within the Milky Way Galaxy. The first-formed solids in the Solar System, calcium-, aluminum-rich inclusions (CAIs) in mete…
openalex
Emilie T. Dunham, M. Wadhwa, S. J. Desch, Ming‐Chang Liu 等
2022-02-07
置信度 0.72
Formation and evolution of the Solar SystemChondriteMeteoriteNebulaHomogeneous
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The chemical compositions of martian basalts are enriched in iron with respect to terrestrial basalts. Their rheology is poorly known and liquids of this chemical composition have not been experimentally investigated. Here, we determine the viscosity of five s…
openalex
Magdalena Oryaëlle Chevrel, David Baratoux, Kai‐Uwe Hess, Donald B. Dingwell
2013-09-05
置信度 0.72
BasaltMartianMantle (geology)SilicateMineralogy
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Abstract Primitive achondrites of the acapulcoite–lodranite clan (ALC) are residues of partial melting that displays a continuum of thermal metamorphism and partial melting most likely set by burial depth within an internally heated, primordial acapulcoite–lod…
openalex
Michael P. Lucas, Nick Dygert, Jialong Ren, Marc A. Hesse 等
2022-11-21
置信度 0.72
Partial meltingParent bodyMeteoritePyroxeneTrace element
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Abstract The surface of Venus is in contact with a hot (~470 °C), high pressure (92 bars), and caustic (CO2 with S, but little H2O) atmosphere, which should cause progressive alteration of the crust in the form of sulfate and iron-oxide coatings; however, the …
openalex
J. Filiberto, M. C. McCanta
2023-07-10
置信度 0.72
VenusBasaltProtolithAtmosphere (unit)Mineralogy
-
openalex
L. E. Borg, G. A. Brennecka, S. J. K. Symes
2015-12-17
置信度 0.72
MeteoriteMars Exploration ProgramGeologyIsochron datingIsochron
-
openalex
Chi Ma, Oliver Tschauner, J. R. Beckett, Yang Liu 等
2015-04-25
置信度 0.72
PlagioclaseMeteoriteGeologyMartianGeochemistry
-
Abstract— The crystallization ages of martian (SNC) meteorites give evidence that martian volcanism has continued until recent times‐perhaps until the present. These meteorites also indicate that the mantle source regions of this volcanism are modestly to extr…
openalex
J. H. Jones
2003-12-01
置信度 0.72
MartianMeteoriteGeologyBasaltMantle (geology)
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Abstract Northwest Africa 7533, a polymict Martian breccia, consists of fine‐grained clast‐laden melt particles and microcrystalline matrix. While both melt and matrix contain medium‐grained noritic‐monzonitic material and crystal clasts, the matrix also conta…
openalex
R. H. Hewins, B. Zanda, M. Humayun, A. A. Nemchin 等
2016-10-25
置信度 0.72
GeologyAugiteGeochemistryPyroxenePigeonite
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Abstract The Martian meteorites record a wide diversity of environments, processes, and ages. Much work has been done to decipher potential mantle sources for Martian magmas and their interactions with crustal and surface environments. Chlorine isotopes provid…
openalex
Jeffrey T. Williams, C. K. Shearer, Z. D. Sharp, P. V. Burger 等
2016-05-04
置信度 0.72
MartianMeteoriteGeologyMantle (geology)Crust
-
Abstract— On the night of March 26, 2003, a large meteorite broke up and fell upon the south suburbs of Chicago. The name Park Forest, for the village that is at the center of the strewnfield, has been approved by the nomenclature committee of the Meteoritical…
openalex
S. B. Simon, L. Grossman, Robert N. Clayton, T. K. Mayeda 等
2004-04-01
置信度 0.72
MeteoriteGeologyPyroxeneBrecciaOlivine
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[1] Lunar geochemical groups such as Mg suite, ferroan anorthosite, and alkali suite rocks are difficult to distinguish from orbit because they are defined by both modal mineralogy and elemental composition of their constituent minerals. While modal mineralogy…
openalex
R. L. Klima, C. M. Pieters, Joseph W. Boardman, Robert O. Green 等
2011-04-13
置信度 0.72
PyroxeneAnorthositeGeologyMaficGeochemistry
-
Abstract Radiance measured by the Moon Mineralogy Mapper (M3) at wavelengths beyond ~2 µm commonly includes both solar reflected and thermally emitted contributions from the lunar surface. Insufficient correction (removal) of the thermal contribution can modif…
openalex
Shuai Li, R. E. Milliken
2016-09-17
置信度 0.72
RadianceRemote sensingLunar mareRegolithWavelength
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Abstract Tissint is an olivine‐phyric shergottite from an incompatible element depleted Martian mantle source. Oxythermobarometry applied to Tissint mineral phases demonstrates that the Tissint magma underwent an increase in oxygen fugacity, from ~3.5 log unit…
openalex
N. Castle, C. D. K. Herd
2016-10-14
置信度 0.72
Mineral redox bufferOlivineMeteoriteGeologyPigeonite
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Abstract We report on the results of an experimental study based on the petrology of the Tissint meteorite, an olivine‐phyric shergottite that preserves evidence of an oxidation event during its petrogenesis. We find that oxidation occurring after olivine satu…
openalex
N. Castle, C. D. K. Herd
2018-04-14
置信度 0.72
OlivinePetrogenesisMeteoriteSpinelGeology
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Martian meteorites provide the only direct constraints on the timing of Martian accretion, core formation, magmatic differentiation, and ongoing volcanism. While many radiogenic isotope chronometers have been applied to a wide variety of Martian samples, few, …
openalex
Z. Váci, C. B. Agee
2020-11-12
置信度 0.72
MartianMeteoriteAstrobiologyGeologyPlanetary differentiation
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Abstract Meteoritical Bulletin 113 contains the 3646 meteorites approved by the Nomenclature Committee of the Meteoritical Society in 2024. It includes 17 falls, 2964 ordinary chondrites, 218 HED, 158 carbonaceous chondrites (including 7 ungrouped), 59 lunar m…
openalex
J. Gattacceca, F. M. McCubbin, J. N. Grossman, D. L. Schrader 等
2025-06-06
置信度 0.72
AchondriteMeteoriteEnstatiteChondriteAstrobiology
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Abstract— Ordinary and carbonaceous chondrites of the lowest petrologic types were surveyed by X‐ray mapping techniques. A variety of metamorphic effects were noted and subjected to detailed analysis using electron microprobe, scanning electron microscopy (SEM…
openalex
J. N. Grossman, A. J. Brearley
2005-01-01
置信度 0.72
ChondruleChondriteMetamorphismOlivineGeology
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Abstract We reexamine the relationship between pyroxene composition and near‐infrared absorption bands, integrating measurements of diverse natural and synthetic samples. We test an algorithm (PLC) involving a two‐part linear continuum removal and parabolic fi…
openalex
D. P. Moriarty, C. M. Pieters
2016-01-08
置信度 0.72
PyroxeneMeteoriteBasaltGeologyMineralogy
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We present a coupled thermal‐magmatic model for the evolution of Mars' mantle and crust that may be consistent with estimates of the average crustal thickness and crustal growth rate. By coupling a simple parameterized model of mantle convection to a batch‐mel…
openalex
S. A. Hauck, R. J. Phillips
2002-07-01
置信度 0.72
GeologyMantle (geology)CrustCrustal recyclingMars Exploration Program
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Abstract Northwest Africa (NWA) 7533 is a Martian regolith breccia. This meteorite (and its pairings) offers a good opportunity to study (near‐) surface processes that occurred on early Mars. Here, we have conducted a transmission electron microscope study of …
openalex
Hugues Leroux, Damien Jacob, Maya Marinova, R. H. Hewins 等
2016-04-17
置信度 0.72
PyroxeneGeologyPigeoniteMeteoriteBreccia
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Abstract— Crystallization of a magma ocean on a large terrestrial planet that is significantly melted by the energy of accretion may lead to an unstable cumulate density stratification, which may overturn to a stable configuration. Overturn of the initially un…
openalex
L. T. Elkins‐Tanton, E. M. Parmentier, P. C. Hess
2003-12-01
置信度 0.72
GeologyMartianFractional crystallization (geology)Mars Exploration ProgramMantle (geology)
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Abstract Northwest Africa (NWA) 6342 is an intermediate, poikilitic shergottite, found in Algeria in 2010. It is comprised of two distinct petrographic areas; poikilitic domains with rounded Mg‐rich olivine chadacrysts enclosed by large low‐Ca pyroxene oikocry…
openalex
T. V. Kizovski, K. T. Tait, V. E. Di Cecco, L. F. White 等
2019-02-24
置信度 0.72
GeologyRecrystallization (geology)PlagioclaseGeochemistryMeteorite
-
openalex
Fabienne Trolard, Simon Duval, Wolfgang Nitschke, Bénédicte Ménèz 等
2021-12-25
置信度 0.72
Hydrothermal circulationBruciteFerrihydriteRedoxHydrothermal vent
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Abstract Hydrothermal processing on planetesimals in the early solar system produced new mineral phases, including those generated by the transformation of anhydrous silicates into their hydrated counterparts. Carbonaceous chondrites represent tangible remnant…
openalex
Mark A. Sephton, Rachael H. James, Manuela A. Fehr, P. A. Bland 等
2013-03-15
置信度 0.72
ChondriteMeteoriteMurchison meteoriteParent bodyGeology
-
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openalex
A. W. R. Bevan
1996-01-01
置信度 0.72
MeteoriteGeographyAstrobiologyBiology
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Models for Martian magma oceans of varying depths predict that decompression mantle melting, perhaps forming Mars' earliest crust, could occur during gravitationally driven solid‐state overturn of cumulates following magma ocean solidification. When hot cumula…
openalex
L. T. Elkins‐Tanton, P. C. Hess, E. M. Parmentier
2005-10-11
置信度 0.72
GeologyCrustMantle (geology)MagmaBasalt
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The Thermal Emission Spectrometer (TES) instrument on the Mars Global Surveyor (MGS) mission has discovered a remarkable accumulation of crystalline hematite (α‐Fe2O3) that covers an area with very sharp boundaries approximately 350 by 350–750 km in size cente…
openalex
P. R. Christensen, J. L. Bandfield, R. N. Clark, K. S. Edgett 等
2000-04-01
置信度 0.72
HematiteMineralogyMartianMars Exploration ProgramAtmosphere of Mars
-
Abstract The relationship of mass‐independent stable isotope anomalies with the chemistry of chondritic meteorites provides constraints on mixing and fractionation processes in the early solar nebula. The present study emphasizes the strong correlation of nucl…
openalex
H. Palme, Klaus Mezger
2024-01-17
置信度 0.72
ChondriteMeteoriteEnstatiteCarbonaceous chondriteRefractory (planetary science)
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Abstract NASA's Genesis mission revealed that the Sun is enriched in 16O compared to the Earth and Mars (the Sun's Δ17O, defined as δ17O–0.52×δ18O, is –28.4 ± 3.6‰; McKeegan et al. 2011). Materials as 16O‐rich as the Sun are extremely rare in the meteorite rec…
openalex
L. Kööp, K. Nagashima, A. M. Davis, Alexander N. Krot
2020-03-01
置信度 0.72
MeteoriteAstrobiologyRefractory (planetary science)Isotopes of oxygenInclusion (mineral)
-
Gabel Nusab El Balgum is located in the northern part of Bir Safsaf Area Southwestern Desert, Egypt (about 600 km southwest of Aswan City) and covers an area of about 40 km2. A few workers have investigated the Nusab El Balgum Area from the mineralogical and g…
openalex
Mohamed El-Ahmady Ibrahim, Baher Abd El Hamed El-Kalioby, Gehan Mohamed Aly, Amera Mohamed El-Tohamy 等
2015-04-20
置信度 0.72
GeologyGeochemistryZirconColumbiteMonazite
-
Rare-earth elements (REEs), including lanthanides, scandium, and yttrium, are important for advanced technologies such as renewable energy systems, electronics, medical diagnostics, and precision agriculture. Despite their relative crustal abundance, REE extra…
openalex
M R Rezaei, Gabriela Sanchez-Lecuona, Omid Abdolazimi
2025-07-09
置信度 0.72
Rare earthCross disciplinaryMineralogyEarth scienceEnvironmental science
-
openalex
Virgile Malarewicz, Olivier Beyssac, B. Zanda, Johanna Marin‐Carbonne 等
2025-02-21
置信度 0.72
NoachianMeteoriteHesperianMars Exploration ProgramGeology
-
Abstract We review the results of an extensive campaign to determine the physical, geological, and dynamical properties of asteroid (101955) Bennu. This investigation provides information on the orbit, shape, mass, rotation state, radar response, photometric, …
openalex
D. S. Lauretta, A. Bartels, Maria Antonella Barucci, E. B. Bierhaus 等
2014-11-10
置信度 0.72
AsteroidAstrobiologySolar SystemPlanetAstronomy
-
Abstract Knowledge of Martian igneous and mantle compositions is crucial for understanding Mars' mantle evolution, including early differentiation, mantle convection, and the chemical alteration at the surface. Primitive magmas provide the most direct informat…
openalex
Juliane Groß, J. Filiberto, C. D. K. Herd, Mohit Melwani Daswani 等
2013-03-21
置信度 0.72
OlivineMeteoriteGeologyGeochemistryMantle (geology)
-
Abstract— Out of 16 well‐characterized 1 to 37 g meteorite specimens recovered from Lucerne Dry Lake (an approximately 3 × 7 km playa in the southern Mojave Desert of California), there are 9 separate ordinary chondrite finds. The ratio of independent meteorit…
openalex
Alan E. Rubin, R. S. Verish, C. B. Moore, Ronald A. Oriti
2000-09-01
置信度 0.72
MeteoriteGeologyAllende meteoriteAstrobiologyOrdinary chondrite
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Spectral interpretation that silicic rocks are widespread on Mars implies that Earth's differentiated crust is not unique. Evaluation of observations bearing on the composition of the Martian crust (Martian meteorite petrology and a possible crustal assimilant…
openalex
H. Y. McSween, T. L. Grove, M. B. Wyatt
2003-12-01
置信度 0.72
GeologyPetrogenesisGeochemistryBasaltAndesite
-
openalex
Klaus Mezger, Vinciane Debaille, T. Kleine
2012-10-16
置信度 0.72
MeteoriteMars Exploration ProgramPlanetary differentiationMantle (geology)Martian
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Abstract Apollo 17 core sample 73001/2 was recently made available to researchers for analysis using state‐of‐the‐art techniques in the framework of a modern understanding of lunar surface processes. In this work, we employ transmission electron microscopic an…
openalex
J. A. McFadden, M. S. Thompson, L. P. Keller, R. Christoffersen 等
2024-11-01
置信度 0.72
WeatheringApolloFraction (chemistry)Sample (material)Core (optical fiber)
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Abstract The mineralogy of planetary mantles formed under reducing conditions, as documented in the inner regions of the solar system, is not well constrained. We present thermodynamic models of mineral assemblages that would constitute the mantles of exo‐Merc…
openalex
Camilla Cioria, Giuseppe Mitri, J. A. D. Connolly, Jean‐Philippe Perrillat 等
2024-06-27
置信度 0.72
EnstatitePyroxeneOlivineChondriteGeology
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Carbonaceous chondrites are amongst the most chemically primitive solid materials in the Solar System, yet many are depleted in moderately volatile elements. Here, we report enrichments in heavier zinc isotopes in heated carbonaceous chondrites compared to the…
openalex
Zheng-Yu Long, Frédéric Moynier, Tim Bögels, Linru Fang 等
2025-07-03
置信度 0.72
MeteoriteSublimation (psychology)AstrobiologyMaterials scienceChemistry
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Abstract The Martian meteorites comprise mantle‐derived mafic to ultramafic rocks that formed in shallow intrusions and/or lava flows. This study reports the first in situ platinum‐group element data on chromite and ulvöspinel from a series of dunitic chassign…
openalex
Raphael J. Baumgartner, Marco L. Fiorentini, David Baratoux, L. Ferrière 等
2016-11-27
置信度 0.72
ChromiteMeteoritePlatinum groupGeologyOlivine
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Abstract Apatite can incorporate sulfur in its reduced form (S2−) when apatite equilibrates with a silicate melt under reducing conditions. Incorporation of sulfate (S6+) has been observed in terrestrial apatite under oxidizing conditions. Thus, it has been su…
openalex
Proteek Chowdhury, Maryjo Brounce, J. W. Boyce, F. M. McCubbin
2023-05-31
置信度 0.72
ApatiteGeologyGeochemistrySilicateMeteorite
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Iron is the most abundant multivalent element in planetary reservoirs, meaning its isotope composition (expressed as δ57Fe) may record signatures of processes that occurred during the formation and subsequent differentiation of the terrestrial planets. Chondri…
openalex
Paolo A. Sossi, Oliver Nebel, M. Anand, Franck Poitrasson
2016-06-11
置信度 0.72
MeteoriteGeologyAchondritePlanetary differentiationAstrobiology
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The alkaline igneous rocks of the Chompolo field (Aldan shield, Siberian craton), previously defined as kimberlites or lamproites, are more correctly classified as low-Ti lamprophyres. The emplacement age of the Ogonek pipe (137.8 ± 1.2 Ma) and the Aldanskaya …
openalex
Е. И. Николенко, Konstantin V. Lobov, A. M. Agashev, N. S. Tychkov 等
2020-10-06
置信度 0.72
GeologyGeochemistryLithophileKimberliteIgneous rock
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Abstract— We have studied the mineralogy and petrology of mesostases of 783 type I chondrules in seven CO3 chondrites that range in petrologic subtype from 3.0 to 3.7. Chondrule mesostases in the CO chondrite of subtype 3.0 consist mainly of primary glass and …
openalex
K. Tomeoka, Daisuke Itoh
2004-08-01
置信度 0.72
ChondruleChondriteNephelinePlagioclaseGeochemistry
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openalex
Clément Royer, F. Poulet, R. C. Wiens, Franck Montmessin 等
2025-03-07
置信度 0.72
Impact craterAstrobiologyEjectaInfraredGeology
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Abstract Dating rocks with a 2σ precision of 200 Ma is required to understand the history of Martian habitability and volcanic activity since ~4000 Ma. In situ K‐Ar dating using a spot‐by‐spot laser ablation technique has been developed for isochron dating on …
openalex
Hikaru Hyuga, Yuichiro Cho, Yayoi N. Miura, T. Mikouchi 等
2025-08-07
置信度 0.72
Mars Exploration ProgramIsochronMeteoriteMartianIsochron dating
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Abstract Northwest Africa (NWA) 2737, one of the only three discovered Martian chassignites, provides critical constraints on the evolution of the Martian mantle and crust. Because of chassignites’ cumulative nature, they contain abundant melt inclusions (MI).…
openalex
Peiyu Wu, Esteban Gazel, Arya Udry, Jacob Setera 等
2021-07-01
置信度 0.72
MartianGeologyFractional crystallization (geology)Impact craterMeteorite
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Abstract Nitrate was recently detected in Gale Crater sediments on Mars at abundances up to ~600 mg/kg, confirming predictions of its presence at abundances consistent with models based on impact‐generated nitrate and other sources of fixed nitrogen. Terrestri…
openalex
J. C. Stern, B. Sutter, W. Andrew Jackson, R. Navarro‐González 等
2017-02-28
置信度 0.72
ChlorateMars Exploration ProgramNitratePerchlorateAstrobiology
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Abstract We present the outcome of search campaigns conducted in the Catalina Dense Collection area (DCA) located in the central depression of the Atacama Desert, Chile. The “Catalina Systematic Collection” (CSC) was assembled through systematic on‐foot search…
openalex
Carine Sadaka, J. Gattacceca, M. Gounelle, M. Roskosz 等
2025-01-10
置信度 0.72
MeteoriteAstrobiologyChondriteGeologyPairing
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Abstract– Klaus Keil ( Fig. 1 ) grew up in Jena and became interested in meteorites as a student of Fritz Heide. His research for his Dr. rer. nat. became known to Hans Suess who––with some difficulty––arranged for him to move to La Jolla, via Mainz, 6 months …
openalex
D. W. G. Sears
2012-09-14
置信度 0.72
MeteoriteChondriteEnstatiteGeologyArt history
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Abstract Mercury has a very tenuous atmosphere starting at the surface, which is referred to as a surface-bound exosphere, where there are no collisions between exospheric particles. Having a surface-bound exosphere means that the particles in the exosphere ha…
openalex
P. Wurz, Noah Jäggi, André Galli, Audrey Vorburger 等
2025-01-01
置信度 0.72
Mercury (programming language)Environmental chemistryMaterials scienceMineralogyChemistry
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ABSTRACT White dwarf planetary systems uniquely link the bulk elemental composition of exoplanetary material to the mineralogy as photospheric abundances can be compared to circumstellar dust mineralogy. This study re-examines Spitzer/IRS spectra of eight whit…
openalex
Laura K. Rogers, Amy Bonsor, Érika Le Bourdais, Siyi Xu 等
2025-07-24
置信度 0.72
White dwarfPhysicsSilicateAstrobiologyAstronomy
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Enstatite meteorites, including enstatite chondrites and enstatite achondrites (e.g., aubrites), formed under highly reducing conditions in the solar system. Enstatite chondrites underwent progressive thermal metamorphism from petrologic type 3 to type 6, pote…
openalex
Baoliang Wang, Frédéric Moynier, Yan Hu
2025-04-14
置信度 0.72
EnstatiteMeteoriteRubidiumPotassiumIsotope
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ABSTRACT Raman spectroscopy is a key technique for planetary exploration, providing mineralogical insights under strict constraints on power, mass and data transmission. This study applies principal component analysis (PCA) to Raman imaging data from the Seric…
openalex
Cédric Malherbe, Ian B. Hutchinson, Hannah Lerman, Melissa McHugh 等
2025-07-10
置信度 0.72
Raman spectroscopyMeteoriteOlivinePrincipal component analysisSpectroscopy
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We consider the hypothesis that Mars never experienced an early warm, wet period and the implications of a continuously cold Martian climate for the hydrology and geochemistry of the planet. Geomorphic evidence previously interpreted to indicate a more tempera…
openalex
Eric Gaidos, G. M. Marion
2003-06-01
置信度 0.72
GeologyMartianMars Exploration ProgramHesperianEarth science
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Analytical techniques are essential in investigating the unique features of extra‐terrestrial geomaterials, and the use of in situ analytical tools is becoming increasingly common, as it facilitates a quick initial bulk chemical analysis, identification and cl…
openalex
N. Senesi, O. De Pascale, Sara Mattiello, Vanni Moggi Cecchi 等
2024-08-20
置信度 0.72
MeteoriteLaser-induced breakdown spectroscopySpectroscopyMaterials scienceAstrobiology
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Abstract. Pre-activation denotes the capability of particles or materials to nucleate ice at lower relative humidities or higher temperatures compared to their intrinsic ice nucleation efficiency after having experienced an ice nucleation event or low temperat…
openalex
Claudia Marcolli
2017-02-02
置信度 0.72
Sublimation (psychology)Kelvin equationIce nucleusRelative humidityIce crystals
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Abstract Museums and universities are important for collecting, maintaining, and curating meteorites. To make specimens known and available for research, inventorying and optimal curation are important. However, not all meteorite collections are well curated, …
openalex
J. Eschrig, M. M. M. Meier, Beda A. Hofmann
2025-05-06
置信度 0.72
MeteoritePolitical scienceLibrary scienceGeographyComputer science
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Abstract Pink spinel anorthosite (PSA), a distinctive plagioclase and spinel‐rich lithology (spinel >20%) observed on the lunar surface by the Moon Mineralogy Mapper (M3) imaging spectrometer, has sparked considerable interest in understanding magmatic process…
openalex
Daniel Sheikh, A. Ruzicka, M. L. Hutson
2024-12-19
置信度 0.72
AnorthositeGeologyPlagioclaseGeochemistryLithology
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Nomad was deployed for a 45 day traverse in the Atacama Desert, Chile, during the summer of 1997. During this traverse, 1 week was devoted to science experiments. The goal of the science experiments was to test different planetary surface exploration strategie…
openalex
Nathalie A. Cabrol, G. Chong‐Díaz, C. Stoker, V. C. Gulick 等
2001-04-01
置信度 0.72
TraverseMeteoriteMars Exploration ProgramDesert (philosophy)Geology
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Ungrouped achondrites with affinities to Howardite-Eucrite-Diogenite (HED) meteorites offer critical insights into the diversity of differentiated bodies in the inner Solar System. They can help address the longstanding discrepancy between V-type asteroids rel…
openalex
Ben Rider-Stokes, A. Y. Wong, T. H. Burbine, Eric MacLennan 等
2025-10-08
置信度 0.72
AchondriteAsteroidMeteoriteGeologyAstrobiology
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openalex
E. Dehouck, V. F. Chevrier, A. Gaudin, N. Mangold 等
2012-05-08
置信度 0.72
NoachianWeatheringGeochemistryHesperianCarbonate
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Abstract— Based on recent progress in simulating space weathering on asteroids using pulse‐laser irradiation onto olivine and orthopyroxene samples, detailed analyses of two of the A and R type asteroid reflectance spectra have been performed using reflectance…
openalex
T. Hiroi, S. Sasaki
2001-12-01
置信度 0.72
Space weatheringAsteroidOlivinePyroxeneGeology
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Although incomplete because of the imperfect and somewhat random sampling of rock types by the Apollo and Luna missions (1969-1976), the history of lunar magmatism has been reconstructed by numerous researchers over the past three decades. These reconstruction…
openalex
C. K. Shearer, J. J. Papike
1999-10-01
置信度 0.72
AstrobiologyGeologyGeochemistryEarth scienceBiology
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Abstract One approach to decipher the dynamics of material transport and planetary accretion in the early solar system is to investigate xenolithic fragments in meteorites. In this work, we examined an igneous fragment from the NWA 12651 meteorite—the first ig…
openalex
S. Ebert, Markus Patzek, Sarah Lentfort, A. Bischoff
2019-10-23
置信度 0.72
ChondriteMeteoriteIgneous rockPyroxeneChondrule