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geochemistry

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• Electrical Resistivity Change Upon Crystallization as a Robust Descriptor for Metallic Glass Forming Ability.
  2026 · AI 驱动科学发现 · Rapid identification of compositions with high glass forming ability (GFA) remains a major bottleneck in the discovery of new metallic glasses. Here we show that the electrical resistivity change induced by thermal annea…
• Magnetic signatures and origins of ferromagnetic minerals in Chang'e-6 lunar farside soils.
  2025 · 地外矿物 · Ferromagnetic minerals in lunar materials record key information regarding the Moon’s ancient dynamo, impact events, and space weathering. However, interpreting the magnetic signals is complicated by their diverse origin…
• Mineralogical evidence for hydrothermal alteration of Bennu samples.
  2025 · 地外矿物 · Samples of asteroid (101955) Bennu delivered by the OSIRIS-REx mission offer the opportunity to study pristine planetary materials unchanged by exposure to the terrestrial environment. Here we use a combination of X-ray …
• Redox-driven mineral and organic associations in Jezero Crater, Mars.
  2025 · 地外矿物 · The Perseverance rover has explored and sampled igneous and sedimentary rocks within Jezero Crater to characterize early Martian geological processes and habitability and search for potential biosignatures1–7. Upon enter…
• Finite Element Analysis of Fixed-bearing Unicompartmental Knee Arthroplasty: Coronal Alignment of the Tibial Component under Physiological Alignment
  2026 · AI 安全与对齐 · Abstract Background : To investigate the influence of tibial component varus and valgus angles on knee joint biomechanics in fixed-bearing unicompartmental knee arthroplasty (FB-UKA) with physiological mechanical alignme…
• Impact-diagnostic criteria for use in confirming a meteorite impact origin of terrestrial geological structures: Recommendations by the Impact Cratering Committee of the Meteoritical Society
  2026 · 地外矿物 · The framework of the Impact Cratering Committee (ICC) of the Meteoritical Society was approved in 2020, with the first committee members appointed in 2023. The ICC has a mandate to (1) approve, maintain, and update a dat…
• Introduction to the nucleation and growth of sedimentary minerals
  2026 · 地外矿物 · The formation and transformation of sedimentary minerals are essential processes building Earth's sedimentary record.The term "sedimentary" implies that these are minerals formed or transformed under near-surface conditi…
• Trace Metal and Phosphorus Enrichments in Cyanobacteria Cells and Cyanobacterial Precipitated Minerals
  2025 · 地外矿物 · The enrichment of trace metals and other life-essential elements, like phosphorus, in carbonates may be a signature of microbial life. Enrichments of such elements in microbial carbonate facies in the rock record have be…
• Mantle contributions to global tungsten recycling and mineralization
  2025 · 地外矿物 · Abstract Tungsten deposits are typically associated with crust-derived evolved granitoids. Whether the mantle has contributed to tungsten mineralization, however, is unknown. Here, we provide new and compiled helium‒argo…
• Fe-Ti vs. Fe-Fe charge transfers: A comprehensive review and its applications in minerals and glasses
  2025 · 地外矿物 · Abstract Iron-titanium (Fe-Ti) charge transfer is mentioned in numerous articles as the source of the coloration of many natural minerals and some manufactured materials, but no global review of this phenomenon has been …
• Microbial weathering of iron-bearing minerals in deep hydrothermally altered granitic rock of a semi-arid environment (Chilean Coastal Cordillera)
  2025 · 地外矿物 · Abstract Microbial mineral weathering has been predominantly investigated at shallow depths in humid and tropical environments. Much less is understood about its role in the deeper subsurface of arid and semi-arid enviro…
• The role of magma differentiation in optimizing the fluid-assisted extraction of copper to generate large porphyry-type deposits
  2025 · 地外矿物 · Porphyry copper deposits (PCDs) are the main source of copper globally, with the metals transported in and deposited from aqueous magmatic fluids. Processes that define the volume of magma and concentration of copper in …
• Occurrence and Origin of Chlorine in Middle Jurassic High-Cl Coals from the Sha’erhu Area, Turpan–Hami Basin, Northwest China
  2025 · 地外矿物 · Exceptionally high chlorine contents (up to 1.57%) occur in the Middle Jurassic coal seams of the Sha’erhu area, Turpan–Hami Basin, Northwest China, making this coalfield one of the most Cl-enriched coal occurrences repo…
• Modes of occurrence of rare earth-bearing minerals in South African coal and ash samples using electron microscopy
  2025 · 地外矿物 · Rare earth elements and yttrium (REY) are crucial for modern technologies. This study investigated the modes of occurrence, mineral hosts, and distribution in coal and laboratory-derived coal-ash samples from the Soutpan…
• Characterisation and magnetic separation of complex low grade saprolite ore for rare earth elements minerals recovery
  2025 · 地外矿物 · In this study, mineralogical and strategic magnetic beneficiation tests were undertaken on a complex low grade saprolite ore to assess the feasibility of recovering valuable rare earth elements (REE) minerals. Mineralogi…
• Compositional and Mineralogical Diversity of Jezero Western Fan, Mars, Revealed by Elemental Observations
  2025 · 地外矿物 · The NASA Mars 2020 Mission Perseverance rover has conducted a four-Martian-year scientific campaign in the Jezero western fan, a typical fluvial–deltaic–lacustrine system on Mars. Equipped with the Planetary Instrument f…
• Volatile loss history of the Moon from the copper isotopic compositions of mare basalts
  2025 · 地外矿物 · The abundances and isotopic signatures of volatile elements provide critical information for understanding the delivery of water and other essential life-giving compounds to planets. It has been demonstrated that the Moo…
• Compositional and Textural Variability Among Tektites From Indochina and South China: Insights Into the Impact Origin of the Australasian Tektite Strewn Field
  2025 · 地外矿物 · Abstract The Australasian tektite strewn field, approximately 0.8 Ma in age, covers nearly 10% of the Earth's surface, making it the largest and most recent strewn field globally. This study provides a comprehensive anal…
• Sassolite Precipitation at the Restless Campi Flegrei Volcano in Italy Points to Hydrothermal Flashing by Deep Boron‐Rich Brines
  2025 · 地外矿物 · Abstract Studying the behavior of dormant volcanoes is a major challenge in volcanology. Here, we conducted a 10‐year survey of hydrothermal mineralization at Campi Flegrei, an active volcano near Naples in Italy, which …
• Disentangling Impact Ejecta Dynamics Using Micro–X‐Ray Fluorescence (μ‐XRF): A Case Study From the Terrestrial Cretaceous‐Paleogene (K‐Pg) Boundary
  2025 · 地外矿物 · Abstract This study presents a non‐destructive geochemical and petrographic workflow to generate high‐resolution chemostratigraphic records across key stratigraphic intervals, exemplified by a terrestrial Cretaceous‐Pale…
• Magnesium, iron, and calcium isotope signatures of Chicxulub impact spherules: Isotopic fingerprint of the projectile and plume thermodynamics
  2025 · 地外矿物 · • Light δ 25 Mg and δ 56 Fe suggest incomplete recondensation from Chicxulub pyrocloud. • Decoupled Fe and Mg condensation rates indicate fractional condensation. • µ 26 Mg* and µ 48 Ca signatures show 17–25 % contributi…
• Eclogite xenoliths record a constant ocean oxygen isotope composition for 3 billion years
  2025 · 地外矿物 · In this work, we utilised the triple oxygen isotope (TOI) composition of Archean-age xenolithic eclogites, representative of Archean subducted altered oceanic crust (AOC) to constrain the triple oxygen isotope compositio…
• Crystal Chemistry of Eudialyte Group Minerals from Rouma Island, Los Archipelago, Guinea
  2025 · 地外矿物 · We herein present a comprehensive investigation of the eudialyte group minerals from the nepheline syenites of Rouma Island in the Los Archipelago, Conakry region, Guinea. Two distinct mineral phases were identified: an …
• Ethoxylated alcohols as co-collectors in apatite, calcite and dolomite flotation
  2025 · 地外矿物 · • Synergistic effect of nonionic fatty alcohol mixed with oleate on calcium mineral flotation. • Separation between phosphate and non-phosphate minerals at pH 4.5 with 20–25% nonionic in the collector mixture. • Better d…
• Effect of a giant meteorite impact on Paleoarchean surface environments and life.
  2024 · 地外矿物 · Large meteorite impacts must have strongly affected the habitability of the early Earth. Rocks of the Archean Eon record at least 16 major impact events, involving bolides larger than 10 km in diameter. These impacts pro…
• High-precision U-Pb zircon dating identifies a major magmatic event on the Moon at 4.338 Ga.
  2024 · 地外矿物 · The Moon has had a complex history, with evidence of its primary crust formation obscured by later impacts. Existing U-Pb dates of >500 zircons from several locations on the lunar nearside reveal a pronounced age peak at…
• Experiences of site specific weed control in winter cereals
  2024 · 智慧农业 · This paper reports research work on weed mapping and site specific weed control in cereals over a four year period (1999 to 2002). For herbicide application, the weeds were grouped into grass weeds and broad-leaved weeds…
• Toledoite, TiFeSi, a New Mineral from Inclusions in Corundum Xenocrysts from Mount Carmel, Israel
  2024 · 地外矿物 · During our nanomineralogical investigation of melt inclusions in corundum xenocrysts from the Mount Carmel area, Israel, seven new oxide and alloy minerals have been discovered since 2021. Herein, we report toledoite (Ti…
• The Average Symmetry Index of Minerals Co-Varies with Their Hydrogen Content, Rarity, and Paragenetic Mode
  2024 · 地外矿物 · Variations in the Dolivo-Dobrovol’sky symmetry index for minerals through time reveal several factors that influence the emergence of crystalline symmetry in natural processes. Of special interest in this regard are the …
• Application of the 187Re-187Os geochronometer to crustal materials: Systematics, methodology, data reporting, and interpretation
  2024 · 地外矿物 · Abstract The rhenium-osmium (187Re-187Os) system is a highly versatile chronometer that is regularly applied to a wide range of geological and extraterrestrial materials. In addition to providing geo- or cosmo-chronologi…
• Distinctive source and hydration state of gold-ore–forming arc magmas
  2024 · 地外矿物 · Abstract Whole-rock trace-element analyses contain previously unutilized evidence of mantle source fertility, degree of partial melting, and silicate melt hydration state that are applicable to arc magmatism globally. Sp…
• Depositional and Diagenetic Sulfates of Hogwallow Flats and Yori Pass, Jezero Crater: Evaluating Preservation Potential of Environmental Indicators and Possible Biosignatures From Past Martian Surface Waters and Groundwaters
  2024 · 地外矿物 · Abstract The Mars 2020 Perseverance rover has examined and sampled sulfate‐rich clastic rocks from the Hogwallow Flats member at Hawksbill Gap and the Yori Pass member at Cape Nukshak. Both strata are located on the Jeze…
• Multiple growth of zirconolite in marble (Mogok metamorphic belt, Myanmar): evidence for episodes of fluid metasomatism and Zr–Ti–U mineralization in metacarbonate systems
  2024 · 地外矿物 · Abstract. Fluid infiltration into (meta-)carbonate rocks is an important petrologic process that induces metamorphic decarbonation and potential mineralization of metals or nonmetals. The determination of the infiltratio…
• A sample preparation guide for clay‐rich carbonaceous chondrites
  2024 · 地外矿物 · Abstract The matrix of the C2‐ungrouped Tarda meteorite contains abundant smectite minerals that swell and crumble when exposed to polar liquids, causing the sample to rapidly slake. This phenomenon presents a serious ch…
• Volatile systematics in terrestrial igneous apatite: from microanalysis to decoding magmatic processes
  2024 · 地外矿物 · Abstract Apatite has been recognized as a robust tool for the study of magmatic volatiles in terrestrial and extraterrestrial systems due to its ability to incorporate various volatile components and its common occurrenc…
• Exchange experiments for chlorine and bromine partitioning in scapolite at variable fluid salinities, pressures, and temperatures: implications for tracing crustal fluid sources via Cl/Br ratios in scapolite
  2024 · 地外矿物 · Halogen ratios (Cl/Br) preserved in halogen-bearing minerals can be very useful to identify the sources of fluids interacting with crystalline rocks, as different fluid types have distinct halogen ratios. In this study w…
• Nitrogen in the Orgueil meteorite: Abundant ammonium among other reservoirs of variable isotopic compositions
  2024 · 地外矿物 · Nitrogen, because of its abundance and variety of carrier phases, is a unique tracer of physico-chemical processes occurring throughout star and planet formations. The refractory organic matter is commonly considered as …
• Decoupling the effect of hydraulic oil contamination on the flotation performance of UG2 PGE ore and its interaction with alteration minerals
  2024 · 地外矿物 · Oil contamination inadvertently arising from underground mechanised South African platinum mines is known to compromise the subsequent flotation performance. Anecdotal observations suggest that this is further exacerbate…
• Minimizing entrainment recovery of ultrafine silicate minerals in pentlandite flotation using carboxymethyl cellulose
  2024 · 地外矿物 · • Quartz was used as an entrainment monitor in the flotation of pentlandite. • Quartz entrainment recovery increased with a decrease in particle size. • CMC enhanced the formation of plateau borders that facilitate parti…
• Exploring the Composition of Egyptian Faience
  2024 · 地外矿物 · Egyptian Faience, a revolutionary innovation in ancient ceramics, was used for crafting various objects, including amulets, vessels, ornaments, and funerary figurines, like shabtis. Despite extensive research, many aspec…
• Microbial Biosignatures Associated with Iddingsite in Hadal Basalts from the Southern Mariana Trench
  2024 · 地外矿物 · Abstract Iddingsitization is an aqueous alteration that is known to take place in meteorites and continental basalts providing a potential habitat for microbial life. However, little is known about the exact mode by whic…
• The Evolution of Mineral Hardness Reveals Both Changing Parageneses and Preservational Bias in the Mineralogical Record
  2023 · 地外矿物 · A survey of the average Mohs hardness of minerals throughout Earth’s history reveals a significant and systematic decrease from >6 in presolar grains to ~5 for Archean lithologies to <4 for Phanerozoic minerals. Tw…
• Geochemical Overprinting and Secondary Placer Crystal Formation in the La Cholla District, Quartzsite, Arizona, USA: Evidence from Copper Isotopes, Morphology, and Trace Elements
  2023 · 地外矿物 · Geochemical overprinting on placer gold deposits produces complex deposits with apparently paradoxical geochemical and morphological attributes. The La Cholla placer gold deposits near Quartzsite, Arizona, USA, contain s…
• Detecting Oxides Mineralization Utilizing Remote Sensing and Comprehensive Mineralogical Analysis: A Case Study Around Mikbi-Zayatit District, South Eastern Desert, Egypt
  2023 · 地外矿物 · Undoubtedly, involving more tools, datasets, and techniques for detecting the mineralized areas sharply narrow the zones to be investigated and delivered, in most cases highly potential zones. Consequently, this study is…
• Understanding the role of water quality in separation of rare earth minerals from iron oxide minerals in a flotation circuit
  2023 · 地外矿物 · In many mineral processing plants, using saline water has become necessary to improve water efficiency. However, the dissolved ions in the water such as Ca2+ and Mg2+ may have a significant negative impact on the flotati…
• On the Diversity and Formation Modes of Martian Minerals
  2023 · 地外矿物 · Abstract A systematic survey of 161 known and postulated minerals originating on Mars points to 20 different mineral‐forming processes (paragenetic modes), which are a subset of formation modes observed on Earth. The ear…
• Interactions of magmas and highly reduced fluids during intraplate volcanism, Mt Carmel, Israel: Implications for mantle redox states and global carbon cycles
  2023 · 地外矿物 · Oxygen fugacity (ƒO2) controls the speciation of COH fluids in Earth’s mantle; a major question is whether the sublithospheric mantle is metal-saturated, maintaining ƒO2 near the Iron-Wüstite (IW) buffer reaction. If so,…
• Methodologies for 176Lu–176Hf Analysis of Zircon Grains from the Moon and Beyond
  2023 · 地外矿物 · High Resolution Image Download MS PowerPoint Slide Zircons are found in extraterrestrial rocks from the Moon, Mars, and some differentiated meteorite parent-bodies. These zircons are rare, often of small size, and have b…
• Physicochemical Conditions of the Devonian-Jurassic Continental Deep Biosphere Tracked by Carbonate Clumped Isotope Temperatures of Granite-Hosted Carbonate Veins
  2023 · 地外矿物 · Previous studies have shown that microorganisms thrive in oligotrophic fracture systems, and metabolisms include consumption and production of methane. In the Laxemar, Götemar, and Forsmark areas of Sweden, ancient micro…
• High-pressure and temperature investigation of silicic acid ± water with implications for the ice polymorphism, lunar moganite and diamonds growth media
  2025 · 地外矿物 · Abstract The polymorphism of ice has been widely investigated over the last decades, and the results were found to be applicable over a wide range of terrestrial and extraterrestrial environments with recent findings als…
• High-pressure and temperature investigation of silicic acid ± water with implications for the ice polymorphism, lunar moganite and diamonds growth media
  2025 · 地外矿物 · Abstract The polymorphism of ice has been widely investigated over the last decades, and the results were found to be applicable over a wide range of terrestrial and extraterrestrial environments with recent findings als…
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  2026 · AI 驱动科学发现 · ¿Cómo hablar con Iberia Argentina?Para hablar, marque el 💫 +54-❶❶❺-219-0324/ 54-115-219-0324 (ARG) o ARG ↪(+54)] al +1-888-599-4723 (US) ahora mismo.El Iberia Argentina teléfono le conecta con destinos en Iberia estados…
• An ELSI for AI: Learning from genetics to govern algorithms
  2025 · AI 驱动科学发现 · In the United States, the summer of 2025 will be remembered as artificial intelligence’s (AI’s) cruel summer—a season when the unheeded risks and dangers of AI became undeniably clear. Recent months have made visible the…
• Modeling Potential Earthquake Risk Zones in Myanmar Due to the March 2025 Earthquake and Geological Factors Using Machine Learning
  2025 · AI 驱动科学发现 · The magnitude of an earthquake is related to many variables. Among those variables are the geological rocks. It is hypothesized that a sedimentary rock is one of the geological types that can magnify an earthquake wave. …
• Potential Occurrence of Accessory Minerals in the Lower Mantle
  2025 · 地外矿物 · In a seminal paper V.M. Goldschmidt pointed out that, in terms of volume of the constituent ions, Earth’s crust and mantle are basically a packing of negatively charged oxygen ions bound together by the volumetrically ba…
• UNIQUE MINERAL ASSOCIATION AND THE FIRST FINDING OF EXTRATERRESTRIAL FERRODIMOLYBDENITE IN THE KUNYA-URGENCH H5 CHONDRITE
  2025 · 地外矿物 · The mineral ferrodimolybdenite (FeMoS) and the associated mineral assemblage were identified for the first time in an extraterrestrial environment: in a sulfide–metal veinlet of the Kunya–Urgench (H5) ordinary chondrite.…
• MRIWA Research Priority Plan Review
  2025 · 地外矿物 · The Minerals Research Institute of Western Australia (MRIWA) is a statutory body established by the Western Australian Government under the Minerals Research Institute of Western Australia Act 2013 (the Act) to stimulate…
• The Controversial Origin of Ferruginous “Coprolites”
  2025 · 地外矿物 · Ferruginous bromalites (coprolites and cololites) occur in enormous quantities in the Upper Cretaceous Whitemud Formation of Saskatchewan, Canada, and in Miocene deposits in Madagascar and southwest Washington, USA. The …
• Mineral Chemistry of Li-Bearing Minerals at the Giant Tanco Pegmatite, Canada
  2025 · 地外矿物 · The highly fractionated late Archean Tanco pegmatite (Bernic Lake, SE Manitoba, Canada) is a world-class producer of tantalum and cerium but is also a major source of lithium. In order to better understand the major Li h…
• Thin-Section Petrography in the Use of Ancient Ceramic Studies
  2025 · 地外矿物 · The potential of thin-section petrography for the analysis of ancient ceramic materials, such as pottery vessels, figurative objects and building materials made of fired clay, was already recognized during the 19th centu…

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