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Abstract Among the many ungrouped meteorites, Acfer 370, NWA 7135, and El Médano 301—probably along with the chondritic inclusion in Cumberland Falls and ALHA 78113—represent a homogeneous grouplet of strongly reduced forsterite‐rich chondrites characterized b…
openalex
Giovanni Pratesi, Stefano Caporali, R. C. Greenwood, Vanni Moggi Cecchi 等
2019-11-03
置信度 0.72
TroiliteChondritePyroxeneOlivineMeteorite
-
Abstract— X‐ray microdiffraction measurements based on the Kossel effect have been used for orientation determinations of rhabdite (i.e., small prismatic schreibersite crystals) with respect to the kamacite matrix. For that purpose, polished specimens of the T…
openalex
Christoph Hennig, V. Geist, G. Heide
1999-01-01
置信度 0.72
KamaciteMeteoriteMaterials scienceDislocationTransmission electron microscopy
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Abstract— Microbeam studies of Martian meteorites Dar al Gani (DaG) 476 and Allan Hills (ALH) 77005 have been conducted to identify potential causes of disequilibrium exhibited in their Sm-Nd isotopic systematics. Olivine and maskelynite mineral fractions on t…
openalex
Jennifer Edmunson, L. E. Borg, C. K. Shearer, J. J. Papike
2005-08-01
置信度 0.72
OlivineGeologyPyroxeneIsochronGeochemistry
-
Abstract With this addendum we provide some correction and additional information regarding the above cited publication. It addresses the following two topics. (1) Clarification for a correct application of the criteria for certain shock stages of chondrites, …
openalex
D. Stöffler, Christopher Hamann, K. Metzler
2019-02-03
置信度 0.72
AddendumSilicateChondriteShock metamorphismShock (circulatory)
-
Abstract— We have used a variety of complementary microanalytical techniques to constrain the mineralogy, trace‐element distributions, and oxygen‐isotopic compositions in a 50 × 50 μm area of Acfer 094 matrix. The results reveal the exceptional mineralogical a…
openalex
P. A. Bland, F. J. Stadermann, C. Floss, Detlef H. Rost 等
2007-08-01
置信度 0.72
ChondruleChondritePyroxeneMeteoritePresolar grains
-
Abstract Using relative reflectance measurements from the Mastcam‐Z and SuperCam instruments on the Mars 2020 Perseverance rover, we assess the variability of Fe mineralogy in Noachian/Hesperian‐aged rocks at Jezero crater. The results reveal diverse Fe 3+ and…
openalex
Lucia Mandon, B. L. Ehlmann, R. C. Wiens, Bradley Garczynski 等
2024-07-01
置信度 0.72
NoachianHematiteDiagenesisGeologyHesperian
-
Abstract We present petrologic and isotopic data on Northwest Africa (NWA) 4799,NWA7809,NWA7214, andNWA11071 meteorites, which were previously classified as aubrites. These four meteorites contain between 31 and 56 vol% of equigranular, nearly endmember enstat…
openalex
Arya Udry, Z. E. Wilbur, Rachel R. Rahib, F. M. McCubbin 等
2019-02-19
置信度 0.72
EnstatiteChondriteTroiliteGeologyMeteorite
-
Abstract— Quantifying the peak temperatures achieved during metamorphism is critical for understanding the thermal histories of ordinary chondrite parent bodies. Various geothermometers have been used to estimate equilibration temperatures for chondrites of th…
openalex
Valerie SLATER-REYNOLDS, H. Y. McSween
2005-05-01
置信度 0.72
ChondritePyroxenePlagioclaseChondruleMetamorphic rock
-
Abstract We measured the concentrations and isotopic compositions of the stable isotopes of He, Ne, Ar, Kr, and Xe in the two lunar impact‐melt breccias Abar al’ Uj (AaU) 012 and Shişr 166 to obtain information on their cosmic‐ray exposure histories and possib…
openalex
Marianna Mészáros, I. Leya, Beda A. Hofmann
2017-06-23
置信度 0.72
RegolithMeteoriteAstrobiologyCosmic rayNoble gas
-
Abstract– Pyroxenes are among the most common minerals in the solar system and are ideally suited for remote geochemical analysis because of the sensitivity of their distinctive spectra to mineral composition. Fe 2+ is responsible for the dominant pyroxene abs…
openalex
R. L. Klima, M. D. Dyar, C. M. Pieters
2011-03-01
置信度 0.72
PyroxeneCrystal (programming language)OctahedronInfraredAnalytical Chemistry (journal)
-
Abstract– Generation and propagation of shock waves by meteorite impact is significantly affected by material properties such as porosity, water content, and strength. The objective of this work was to quantify processes related to the shock‐induced compaction…
openalex
N. Güldemeister, K. Wünnemann, Nathanaël Durr, Stefan Hiermaier
2012-12-27
置信度 0.72
Mesoscale meteorologyPorosityShock waveMechanicsImpact crater
-
Abstract– High pressure phases majorite, possibly majorite‐pyropess, wadsleyite, and coesite are present in the matrix and in barred olivine fragments in the Gujba CB chondrite. Grossular‐pyrope was also observed in some small inclusions. The CB chondrites are…
openalex
M. K. Weisberg, Makoto Kimura
2010-05-01
置信度 0.72
ChondriteOlivineParent bodyChondruleMeteorite
-
Abstract The “Day” diagram (Day et al., 1977, https://doi.org/10.1016/0031-9201(77)90108-X ) is used widely to make inferences about the domain state of magnetic mineral assemblages. Based on theoretical and empirical arguments, the Day diagram is demarcated i…
openalex
Andrew P. Roberts, Lisa Tauxe, David Heslop, Xiang Zhao 等
2018-03-31
置信度 0.72
Domain (mathematical analysis)DiagramMagnetocrystalline anisotropyAnisotropyCondensed matter physics
-
In hyperarid deserts, endolithic microbial communities colonize the rocks' interior as a survival strategy. Yet, the composition of these communities and the drivers promoting their assembly are still poorly understood. We analysed the diversity and community …
openalex
Victoria Meslier, María Cristina Casero, Micah Dailey, Jacek Wierzchoś 等
2018-03-24
置信度 0.72
ActinobacteriaChloroflexi (class)Microbial population biologyProteobacteriaBiology
-
Abstract This work focuses on the historical and scientific investigation of a presumed meteorite fall that occurred in the Sicilian township of Marsala in 1834. Preliminary studies have classified this phenomenon as a “doubtful meteorite.” This term describes…
openalex
Annarita Franza, Marco Morelli, Daniela Faggi, Giovanni Pratesi
2021-05-01
置信度 0.72
MeteoriteAstrobiologyEvent (particle physics)HistoryGeology
-
Abstract Highly siderophile elements (HSEs) can be used to understand accretion and core formation in differentiated bodies, due to their strong affinity for FeNi metal and sulfides. Coupling experimental studies of metal–silicate partitioning with analyses of…
openalex
K. Righter, L. R. Danielson, K. Pando, Jeffrey T. Williams 等
2015-01-06
置信度 0.72
MartianSilicateMeteoriteMars Exploration ProgramMantle (geology)
-
Abstract—We propose that mesosiderites formed when a 200–400 km diameter asteroid with a molten core was disrupted by a 50–150 km diameter projectile. To test whether impacts can excavate core iron and mix it with crustal material, we used a low‐resolution, sm…
openalex
E. R. D. Scott, H. Haack, Stanley G. Love
2001-07-01
置信度 0.72
Mantle (geology)TroiliteOlivineMeteoriteParent body
-
Acid Deposition. Acids and Bases. Actinium. Activation Energy, Activation Enthalpy, Activation Volume. Activity and Activity Coefficients. Aluminum. Americium. Analysis: field methods. Analytical Geochemistry. Analytical Techniques. Antimony: Element and Geoch…
openalex
2019-04-01
置信度 0.72
ChemistryGeologyCarbonate mineralsKerogenMineralogy
-
Abstract— We have done petrologic studies of brachinites Allan Hills (ALH) 84025, Elephant Moraine (EET) 99402, and EET 99407; bulk geochemical studies of EET 99402 and EET 99407; Ar‐Ar studies of Brachina and EET 99402; and a Xe isotopic study of Brachina. Te…
openalex
David W. Mittlefehldt, D. D. Bogard, J. L. Berkley, D. H. Garrison
2003-11-01
置信度 0.72
AchondriteIgneous rockGeologyGeochemistryChondrite
-
Abstract— The Burnwell, Kentucky, meteorite fell as a single stone on 1990 September 4. The Burnwell meteorite has lower Fa in olivine (15.8 mol%), Fs in orthopyroxene (13.4 mol%), Co in kamacite (0.36 wt%), FeO from bulk chemical analysis (9.43 wt%), and Δ17O…
openalex
S. S. Russell, T. J. McCoy, E. Jarosewich, R. D. Ash
1998-07-01
置信度 0.72
ChondriteKamaciteMeteoriteOrdinary chondriteOlivine
-
Abstract Paris is the least aqueously altered CM chondrite identified to date, classified as subtype 2.7; however, literature data indicate that some regions of this apparently brecciated meteorite may be subtype 2.9. The suite of CAIs in Paris includes 19% sp…
openalex
Alan E. Rubin
2015-07-20
置信度 0.72
MeliliteChondruleOlivineGeologyPyroxene
-
Abstract— Terminal particles and mineral fragments from comet 81P/Wild 2 were studied in 16 aerogel tracks by transmission and secondary electron microscopy. In eight tracks clinopyroxenes with correlated Na2O and Cr2O3 contents as high as 6.0 wt% and 13.0 wt%…
openalex
D. J. Joswiak, D. E. Brownlee, G. Matrajt, A. J. Westphal 等
2009-10-01
置信度 0.72
ChondrulePyroxeneChondriteInterplanetary dust cloudOlivine
-
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Dan Vergano
2025-10-14T10:00:25Z
置信度 0.70
-
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2025-01-28T18:15:41Z
置信度 0.70
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crossref
Katherine Joy, Romain Tartèse, Joshua Snape
2025-10-24T12:31:10Z
置信度 0.70
-
Na-Fe- and Na-Ca-Mg-Fe-phosphates were found in the impact melt associations of the Chelyabinsk meteorite (Chebarkul fragment). They drastically differ in composition from phosphates of the initial chondrite (chlorapatite, merrillite). Chladniite NaCaMgFeMn(PO…
crossref
V.V. Sharygin
2025-11-27T16:16:56Z
置信度 0.70
-
crossref
Alex Wilkins
2025-03-30T00:52:41Z
置信度 0.70
-
Meteorites that have impacted the Earth's surface in the past have created impact craters. Most of these craters have not been preserved in a form that allows for their contemporary identification, but some, especially in Central and Northern Europe, have been…
crossref
Mikołaj Zawadzki, Natalia Godlewska, Szymon Oryński
2025-07-09T15:12:38Z
置信度 0.70
-
crossref
Jenna Ahart
2025-10-22T16:13:33Z
置信度 0.70
-
Meteorites that have impacted the Earth's surface in the past have created impact craters. Most of these craters have not been preserved in a form that allows for their contemporary identification, but some, especially in Central and Northern Europe, have been…
crossref
Mikołaj Zawadzki, Natalia Godlewska, Szymon Oryński
2025-03-14T17:20:51Z
置信度 0.70
-
Abstract The Cuyana basin is a Triassic continental rift located in western Argentina. Formed by the deposit of thick sequences of dark shales, rich in organic matter, associated with mainly lacustrine deposits. The objective is the compositional characterizat…
crossref
M.L. Guinazu
2025-11-06T01:18:57Z
置信度 0.70
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INTRODUCTIONReturning sample missions have gainedincreasing attention in the last decades sincethe only way to know the planetary surface'scomposition and reconstruct the historyof geological processes is to analysesamples using Earth-ground laboratorybasedtec…
crossref
Giovanni Fanelli, Giovanna Agrosì, Daniela Mele, Paola Manzari
2025-07-09T15:45:11Z
置信度 0.70
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Climate change, driven by increased greenhouse gas concentrations, not only warming the troposphere (∼0–10 km) but also cooling and contracting the atmosphere above, including the stratosphere (∼10–50 km), mesosphere (∼50–85 km), and thermosphere (∼85–500+ km)…
crossref
Eloy Peña-Asensio, Denis Vida, Ingrid Cnossen, Esteban Ferrer
2025-07-09T15:12:38Z
置信度 0.70
-
Ore microscopy and ore mineralogy have a long-standing tradition and played a foundational role in studying ore deposits before the implementation of advanced analytical techniques.Even with modern technological developments, ore microscopy remains essential f…
crossref
2025-12-05T16:32:53Z
置信度 0.70
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crossref
Takeshi Kakegawa
2025-10-24T12:31:10Z
置信度 0.70
-
Abstract The discovery of Novel Structured Entities (NSE) in meteorite-derived cultures provides an opportunity to investigate structured formations with unique physicochemical properties and their potential role in the stabilization of genetic elements. This …
crossref
Carlos López Ramón y Cajal
2025-03-12T08:28:13Z
置信度 0.70
-
The magnetic properties of minerals are tied intrinsically to their crystallographic and electronic structures. Most books that discuss mineral magnetism tend to treat magnetic minerals from a physics perspective. While this is valuable, magnetic properties ar…
crossref
2026-01-07T00:06:23Z
置信度 0.70
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crossref
Raju Pvs, Koushik Sen
2025-10-24T12:31:10Z
置信度 0.70
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Somewhere in the vast landscape of the Sahara desert, a man stumbles upon an unusual kind of rock. After being passed around from dealers to collectors, the rock finds itself in a research laboratory. The rock is confused and does not remember where it comes f…
crossref
Sabrina Sanchez, Foteini Vervelidou
2024-03-11T10:07:27Z
置信度 0.70
-
crossref
2025-04-14T09:03:33Z
置信度 0.70
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Abstract The Montebras pegmatitic cupola, Massif Central, France, hosts large pods of aluminum phosphates mainly composed of primary amblygonite–montebrasite. These phosphate masses are considerably altered by post-magmatic processes, leading to the formation …
crossref
Cassian Pirard, Martin Depret, Frederic Hatert
2025-11-25T23:08:28Z
置信度 0.70
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The phrase “automated mineralogy” has been synonymous with electron microscopy in the geosciences for decades. The use of energy dispersive spectroscopy (EDS) to rapidly map samples and identify phases of interest has gradually seen a shift out of its original…
crossref
Bernd Schulz, Feng Lin Ng, Richard Taylor
2025-02-06T14:53:18Z
置信度 0.70
-
Abstract This study presents the first evidence of single-stranded DNA (ssDNA) sequences identified through shotgun metagenomic analysis of meteorite-derived cultures. These ssDNA sequences, predominantly isolated from the "no-hits" zone with no significant ma…
crossref
Carlos López Ramón y Cajal
2025-01-22T19:05:20Z
置信度 0.70
-
Abstract The Kipawa Syenite Complex is composed of peralkaline leucosyenites, mesosyenites, mafic syenites, amphibole syenites, fenites, peralkaline granite, and monzonite, with intercalated lenses of marble and skarn. The main REE-HFSE (rare earth element-hig…
crossref
Simon Matte, Marc Constantin
2025-11-03T00:01:48Z
置信度 0.70
-
Abstract Na–Fe and Na–Ca–Mg–Fe phosphates were found in the impact melt associations of the Chelyabinsk meteorite (Chebarkul fragment). They drastically differ in composition from phosphates of the initial chondrite (chlorapatite and merrillite). Chladniite Na…
crossref
V. V. Sharygin
2025-09-23T17:34:10Z
置信度 0.70
-
The article considers the geological setting and mineralogy of oxidation zone of the Vorovskaya Yama copper occurrence (South Transurals), which was exploited in 17th–16th centuries BC by miners of the Alakul culture. The ore occurrence is confned to the conta…
crossref
A.M. Yuminov, Sh.Kh. Kuldashev, I.A. Blinov, P.V. Khvorov 等
2025-10-09T08:19:20Z
置信度 0.70
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A melt pocket (MP) found in only one of the silicate inclusions in the Elga iron meteorite was studied using TEM, SEM, EMPA, and Raman spectroscopy methods. The MP demonstrates the liquid immiscibility of the FeCO-Fe(PO)-SiO-(Fe, Ni)P melts, the mineralogical …
crossref
N.R. Khisina
2025-11-27T16:16:56Z
置信度 0.70
-
The present study investigates the mineralogical composition of Nahuta clay,which forms part of the Ropp Complex located in Barkin Ladi Local GovernmentArea of Plateau State, Nigeria. Detailed geological mapping and laboratoryanalysis were conducted to determi…
crossref
Ezekiel Serumun Terrumun
2025-11-12T14:15:15Z
置信度 0.70
-
Chondrules are a characteristic feature of primitive Solar System materials and are common in all primitive meteorites except the CI-chondrites. They are thought to form owing to melting of solid dust aggregates by energetic processing within the solar nebula …
europepmc
2025
置信度 0.80
-
Seismic, geodetic and cosmochemical evidence point to Mars having a sulfur-rich liquid core. Due to the similarity between estimates of the core's sulfur content and the iron-iron sulfide eutectic composition at core conditions, it has been concluded that temp…
europepmc
2025
置信度 0.80
-
We describe a quantitative statistical and geometric analysis of classical and non-classical modes of twinning in the calcite produced by biomineralization in the shell of the rotaliid foraminifer species Amphistegina lessonii. Foraminifera are responsible for…
europepmc
2025
置信度 0.80
-
Lunar rock fragments, particularly those deemed pristine, have long been considered vital records of the Moon's formation and magmatic evolution. These fragments were thought to have largely escaped the Moon's intense impact history, offering a window into the…
europepmc
2025
置信度 0.80
-
The Psyche spacecraft launched on October 13, 2023 to journey to the asteroid of the same name. Psyche is the largest M-class asteroid and possibly the remanent core of an early differentiated planetesimal that was disrupted by collisions. The Psyche mission w…
europepmc
2025
置信度 0.80
-
Adrianite (IMA 2014-028), Ca 12 (Al 4 Mg 3 Si 7 )O 32 Cl 6 , is a new Cl-rich silicate mineral and the Si,Mg analog of wadalite. It occurs with monticellite, grossular, wadalite, and hutcheonite in altered areas along some veins between primary melilite, spine…
europepmc
2018
置信度 0.80
-
Chondrites display isotopic variations for moderately volatile elements, the origin of which is uncertain and could have involved evaporation/condensation processes in the protoplanetary disk, incomplete mixing of the products of stellar nucleosynthesis, or aq…
europepmc
2021
置信度 0.80
-
A coordinated mineralogical and oxygen isotopic study of four fine-grained calcium-, aluminum-rich inclusions (CAIs) from the ALHA77307 CO3.0 carbonaceous chondrite was conducted. Three of the inclusions studied, 05, 1-65, and 2-119, all have nodular structure…
europepmc
2019
置信度 0.80
-
Igneous processes were quite widespread in the small bodies of the Solar System (SBSS) and were initially fueled by short-lived radioisotopes, the proto-Sun, impact heating, and differentiation heating. Once they finished, long-lived radioisotopes continued to…
europepmc
2023
置信度 0.80
-
This study presents multiwall and bamboo-like carbon nanotubes found in samples from the Allende carbonaceous chondrite using high-resolution transmission electron microscopy (HRTEM). A highly disordered lattice observed in this material suggests the presence …
europepmc
2019
置信度 0.80
-
We have found two refractory inclusions in the CO3.00 carbonaceous chondrite Dominion Range (DOM) 08006 that appear to be primary condensates from the early solar nebula. One, inclusion 56-1, contains the first four phases predicted to form by equilibrium gas-…
europepmc
2019
置信度 0.80
-
Microorganisms inhabiting gypsum have been observed in environments that differ greatly in water availability. Gypsum colonized by microorganisms, including cyanobacteria, eukaryotic algae, and diverse heterotrophic communities, occurs in hot, arid or even hyp…
europepmc
2024
置信度 0.80
-
The precipitation of hydrated phases from a chondrite-like Na-Mg-Ca-SO 4 -Cl solution is studied using in situ synchrotron X-ray powder diffraction, under rapid- (360 K h -1 , T = 250-80 K, t = 3 h) and ultra-slow-freezing (0.3 K day -1 , T = 273-245 K, t = 24…
europepmc
2021
置信度 0.80
-
Dust condensation and coagulation in the early solar system are the first steps toward forming the terrestrial planets, but the time scales of these processes remain poorly constrained. Through isotopic analysis of small Ca-Al-rich inclusions (CAIs) (30 to 100…
europepmc
2019
置信度 0.80
-
The biogenicity problem of geological materials is one of the most challenging ones in the field of paleo and astrobiology. As one goes deeper in time, the traces of life become feeble and ambiguous, blending with the surrounding geology. Well-preserved metase…
europepmc
2019
置信度 0.80
-
We examined lithic breccias from the Apollo sample collection in order to identify ferroan anorthosite samples suitable for geochronology, and better define the age relationships between rocks of the lunar highlands. Clast 3A is a previously unstudied noritic …
europepmc
2019
置信度 0.80
-
The depletions of potassium (K) and sodium (Na) in samples from planetary interiors have long been considered as primary evidence for their volatile behavior during planetary formation processes. Here, we use high-pressure experiments combined with laser ablat…
europepmc
2018
置信度 0.80
-
The Mars Curiosity rover carries a diverse instrument payload to characterize habitable environments in the sedimentary layers of Aeolis Mons. One of these instruments is Sample Analysis at Mars (SAM), which contains a mass spectrometer that is capable of dete…
europepmc
2019
置信度 0.80
-
OSIRIS-REx will return pristine samples of carbonaceous asteroid Bennu. This article describes how pristine was defined based on expectations of Bennu and on a realistic understanding of what is achievable with a constrained schedule and budget, and how that d…
europepmc
2018
置信度 0.80
-
Mass-spectrometric analyses of Xe released from acid-treated U ore reveal that apparent Xe fission yields significantly deviate from the normal values. The anomalous Xe structure is attributed to chemically fractionated fission (CFF), previously observed only …
europepmc
2016
置信度 0.80
-
The Cretaceous-Paleogene (K-Pg) mass extinction is marked globally by elevated concentrations of iridium, emplaced by a hypervelocity impact event 66 million years ago. Here, we report new data from four independent laboratories that reveal a positive iridium …
europepmc
2021
置信度 0.80
-
The ESA-JAXA BepiColombo mission to Mercury will provide simultaneous measurements from two spacecraft, offering an unprecedented opportunity to investigate magnetospheric and exospheric particle dynamics at Mercury as well as their interactions with solar win…
europepmc
2021
置信度 0.80
-
Metal complexes of porphyrins and porphyrin-type compounds are ubiquitous in all three domains of life, with hemes and chlorophylls being the best-known examples. Their diagenetic transformation products are found as geoporphyrins, in which the characteristic …
europepmc
2022
置信度 0.80
-
By the end of 2018, 42 years after the landing of the two Viking seismometers on Mars, InSight will deploy onto Mars' surface the SEIS ( S eismic E xperiment for I nternal S tructure) instrument; a six-axes seismometer equipped with both a long-period three-ax…
europepmc
2019
置信度 0.80
-
This issue of Origins of Life and Evolution of Biospheres contains the abstracts of the scientific contributions presented at the 2008 ISSOL Meeting, which was held in Florence (Italy) on 24-29 August, 2008.The Symposium's main objectives were to bring togethe…
europepmc
2009
置信度 0.80
-
The disposition of actinides, most recently 239Pu from dismantled nuclear weapons, requires effective containment of waste generated by the nuclear fuel cycle. Because actinides (e.g., 239Pu and 237Np) are long-lived, they have a major impact on risk assessmen…
europepmc
1999
置信度 0.80
-
The two linear depressions in this image form part of the Elysium Fossae complex, a group of troughs located in the Elysium quadrangle of Mars.These troughs are tectonic features, likely formed by the stretching, tearing and subsequent collapse of the crust re…
europepmc
2018
置信度 0.80
-
The European AstRoMap project (supported by the European Commission Seventh Framework Programme) surveyed the state of the art of astrobiology in Europe and beyond and produced the first European roadmap for astrobiology research. In the context of this roadma…
europepmc
2016
置信度 0.80
-
europepmc
1924
置信度 0.80
-
Miller Range (MIL) Martian meteorites are oxidized nakhlites. Early studies attribute their oxidation to reduction-oxidation reactions involving assimilated sulfate. I utilize the sulfur isotope and major element composition of the MIL pairs to assess their ox…
openalex
Dottin
2016-01-01
置信度 0.72
MeteoriteAstrobiologyMartianMillerMars Exploration Program
-
Abstract Lunar paleomagnetic studies have identified multidomain metallic Fe–Ni alloys as the dominant magnetic contributors in mare basalts. Here, we explore the low‐temperature magnetic behavior of standard samples for a suite of opaque minerals that occur w…
openalex
Ji‐In Jung, Sonia M. Tikoo-Schantz, Z. Váci, M. J. Krawczynski 等
2025-09-01
置信度 0.72
BasaltGeologyGeochemistryMineralogyPetrology
-
Existing martian simulants are predominantly based on the chemistry of the average ‘global’ martian regolith as defined by data on chemical and mineralogical variability detected by orbiting spacecraft, surface rovers and landers. We have therefore developed n…
openalex
Nisha K. Ramkissoon, V. K. Pearson, S. P. Schwenzer, Christian Schröder 等
2019-08-10
置信度 0.72
RegolithMartianAstrobiologyMars Exploration ProgramMartian soil
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Abstract Many scientific studies have been conducted to constrain present and past source‐to‐sink processes and their controlling factors. The role of typhoon and monsoon rainfall on chemical weathering and soils erosion in east Asia is still not well establis…
openalex
Joffrey Bertaz, Zhifei Liu, Christophe Colin, Arnaud Dapoigny 等
2024-07-29
置信度 0.72
WeatheringDeglaciationGeologyMonsoonLoess
-
Abstract The chemical compositions of shergottite meteorites, basaltic rocks from Mars, provide a broad view of the origins and differentiation of these Martian magmas. The shergottite basalts are subdivided based on their Al contents: high‐Al basalts (Al > 5%…
openalex
A. H. Treiman, J. Filiberto
2014-10-21
置信度 0.72
BasaltGeologyMeteoriteGeochemistryOlivine
-
Abstract The Allan Hills 76005 polymict eucrite pairing group consists of 15 paired masses recovered during six different field seasons in the Transantarctic Mountains. Although this group has been well studied in general, most of the meteorites contain a sign…
openalex
K. Righter, Alexander P. Holmwood
2020-04-01
置信度 0.72
GeologyClastic rockTroiliteParent bodyBreccia
-
Abstract The nakhlite martian meteorites, basaltic rocks with abundant crystals of augite pyroxene, have been interpreted as cumulates, having formed as crystals of augite (and olivine) settled through basalt magma to accumulate at its bottom. Here, I show tha…
openalex
A. H. Treiman
2025-10-22
置信度 0.72
AugiteBasaltGeologyMeteoriteMantle (geology)
-
Abstract The Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer (OSIRIS-REx) spacecraft mission characterized and collected a sample from asteroid (101955) Bennu. After the OSIRIS-REx Sample Return Capsule released to Ear…
openalex
D. N. DellaGiustina, M. C. Nolan, Anjani T. Polit, Michael C. Moreau 等
2023-10-01
置信度 0.72
AsteroidAstrobiologyRegolithMeteoriteImpact crater
-
Abstract What allows a planet to be both within a potentially habitable zone and sustain habitability over long geologic time? With the advent of exoplanetary astronomy and the ongoing discovery of terrestrial‐type planets around other stars, our own solar sys…
openalex
B. L. Ehlmann, F. S. Anderson, J. C. Andrews‐Hanna, David C. Catling 等
2016-09-16
置信度 0.72
HabitabilityAstrobiologyMars Exploration ProgramSolar SystemExoplanet
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Abstract Martian regolith breccia NWA 7533 (and the seven paired samples) is unique among Martian meteorites in showing accessory pyrite (up to 1% by weight). Pyrite is a late mineral, crystallized after the final assembly of the breccia. It is present in all …
openalex
Jean‐Pierre Lorand, Roger H. Hewins, Laurent Rémusat, B. Zanda 等
2015-11-20
置信度 0.72
PyriteBrecciaGeologyRegolithGeochemistry
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The classification of ordinary chondrites has been a profound field of research that is allowing us to know the most primitive secrets of the origins of our solar system. This is due to the advancement of scientific research. This research reveals that chondri…
openalex
José Ángel García
2025-05-25
置信度 0.72
MeteoriteAstrobiologyGeologyPhysics
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Abstract We present isotope concentrations of the light noble gases He and Ne for samples from five well‐documented strewnfields and two individual meteorites from the Omani desert. Cosmogenic (22Ne/21Ne)cos for the strewnfield samples are low, as expected con…
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Mohammad Tauseef, I. Leya, Beda A. Hofmann
2025-08-07
置信度 0.72
MeteoriteChondriteCosmic rayElectromagnetic shieldingNoble gas
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Abstract Over the Nullarbor Plain in South Australia, the Desert Fireball Network detected a fireball on the night of June 1, 2019 (7:30 pm local time), and 6 weeks later recovered a single meteorite (42 g) named Arpu Kuilpu. This meteorite was then distribute…
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Seamus Anderson, G. K. Benedix, Bélinda Godel, Romain M. L. Alosius 等
2024-09-30
置信度 0.72
CometMeteoriteAstrobiologyJupiter (rocket family)Chondrite
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Abstract— We examine the occurrences, textures, and compositional patterns of spinels in the olivine‐phyric shergottites Sayh al Uhaymir (SaU) 005, lithology A of Elephant Moraine A79001 (EET‐A), Dhofar 019, and Northwest Africa (NWA) 1110, as well as the Iher…
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C. A. Goodrich, C. D. K. Herd, L. A. Taylor
2003-12-01
置信度 0.72
OlivineSpinelPyroxeneMineral redox bufferGeology
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Mercury’s regolith, derived from the crustal bedrock, has been altered by a set of space weathering processes. Before we can interpret crustal composition, it is necessary to understand the nature of these surface alterations. The processes that space weather …
openalex
D. L. Domingue, C. R. Chapman, R. M. Killen, T. H. Zurbuchen 等
2014-04-23
置信度 0.72
RegolithSpace weatheringAstrobiologyMercury (programming language)Micrometeoroid
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Abstract We modeled the possible parent bodies of Itokawa, which was heated within by the decay energy of26Al. Based on mineralogic studies of dust particles derived from Itokawa by the Hayabusa spacecraft, it appeared that they were thermally metamorphosed at…
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Shigeru Wakita, Tomoki Nakamura, Takeshi Ikeda, Hisayoshi Yurimoto
2013-08-02
置信度 0.72
RADIUSSpacecraftAstrobiologyPhysicsGeology
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Abstract Martian moons exploration, MMX, is the new sample return mission planned by the Japan Aerospace Exploration Agency (JAXA) targeting the two Martian moons with the scheduled launch in 2024 and return to the Earth in 2029. The major scientific objective…
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Kiyoshi Kuramoto, Yasuhiro Kawakatsu, M. Fujimoto, A. Araya 等
2022-01-19
置信度 0.72
AstrobiologyMartianMars Exploration ProgramExploration of MarsMartian surface
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The study of the spatial configuration of soil, in its complexity, requires an understanding of the interrelations and interactions between the diverse soil constituents, at various levels of organization. Investigations of the spatial arrangement of the miner…
openalex
Ioana A. Taina, Richard J. Heck, Trevor Elliot
2008-02-01
置信度 0.72
Soil scienceTomographyComputed tomographyEnvironmental scienceSoil test
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Abstract– Despite its centennial exploration history, there are still unresolved questions about Meteor Crater, the first recognized impact crater on Earth. This theoretical study addresses some of these questions by comparing model results with field and labo…
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N. A. Artemieva, E. Pierazzo
2011-05-31
置信度 0.72
Impact craterProjectileGeologyMeteoriteHypervelocity
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Abstract Some terrestrial areas have climatic and geomorphologic features that favor the preservation, and therefore, accumulation of meteorites. The Atacama Desert in Chile is among the most important of such areas, known as DCA. This desert is the driest on …
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P. Munayco, J. Munayco, Roberto Ribeiro de Avillez, Millarca Valenzuela 等
2013-03-01
置信度 0.72
ChondriteWeatheringMeteoriteGeologyArid
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Abstract Samples of observed meteorite falls provide important constraints on alteration histories of Solar System materials. Due to its rapid collection, terrestrial alteration in the observed Mighei‐type (CM) carbonaceous chondrite fall Winchcombe was minima…
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Johannes Lier, Christian Vollmer, Linus Risthaus, Demie Kepaptsoglou 等
2025-08-21
置信度 0.72
PetrographyMeteoriteChondriteAstrobiologyCarbonaceous chondrite
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Abstract We present a study of the petrology and geochemistry of basaltic shergottite Northwest Africa 2975 (NWA 2975). NWA 2975 is a medium‐grained basalt with subophitic to granular texture. Electron microprobe (EMP) analyses show two distinct pyroxene compo…
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Qi He, Long Xiao, J. B. Balta, Ioannis Baziotis 等
2015-11-13
置信度 0.72
BasaltMeteoriteGeologyGeochemistryPlagioclase
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Primitive achondrites are meteorites characterised by granoblastic textures evidencing high-temperature metamorphism and low degrees of partial melting. These include the acapulcoite and lodranite meteorites, which originated from a common parent body. Acapulc…
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Romain Tartèse, J. Gattacceca, Guillaume Avice, Pierre Beck 等
2025-10-08
置信度 0.72
Partial meltingAchondriteMeteoriteGeochemistryGeology