Article
Geosciences, Multidisciplinary
S. M. Tikoo, J. Jung
Summary: This study tested whether lunar samples could have been magnetized during return to Earth, sample handling, or transport. The results showed that high coercivity magnetizations observed within lunar rocks are generally not magnetic contamination and were initially acquired on the Moon.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Andras Kovacs, Laura H. Lewis, Dhanalaksmi Palanisamy, Thibaud Denneulin, Alexander Schwedt, Edward R. D. Scott, Baptiste Gault, Dierk Raabe, Rafal E. Dunin-Borkowski, Michalis Charilaou
Summary: Iron and its alloys have played a crucial role in modern civilization, with metallic meteorites serving as one of the earliest sources of usable iron and offering insights into the history of our solar system. Recent research has identified a previously unknown FeNi nanophase within metallic meteorite NWA 6259, which interacts with other nanoprecipitates to create a complex magnetic state.
Article
Geosciences, Multidisciplinary
R. P. Sawyer, J. S. Halekas, J. W. Bonnell, L. J. Chen, J. McFadden, K. H. Glassmeier, Y. Harada, A. Stanier
Summary: This study presents observational evidence of magnetized electrons and demagnetized ions near the lunar surface, suggesting the presence of prominent Hall electric fields near lunar crustal magnetic fields and the occurrence of magnetic reconnection between the solar wind interplanetary magnetic field and lunar crustal magnetic fields. Furthermore, the observations indicate the possibility of electron-only reconnection between the solar wind interplanetary magnetic field and lunar crustal magnetic fields.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
R. P. Sawyer, J. S. Halekas, J. W. Bonnell, L. J. Chen, J. Mcfadden, K. H. Glassmeier, Y. Harada, A. Stanier
Summary: This study presents observational evidence of magnetized electrons and demagnetized ions near the lunar surface, suggesting the presence of plasmas with a non-zero Hall electric field and potentially electron-only reconnection. The observations also indicate a change in the field line topology and the traversal of a closed magnetic field structure containing solar wind electrons, indicating magnetic reconnection between the solar wind interplanetary magnetic field and lunar crustal magnetic field. These findings support previous studies and suggest that electron-only reconnection may occur between the solar wind interplanetary magnetic field and lunar crustal magnetic fields.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Akira Tsuchiyama, Takashi Sakurama, Tsukasa Nakano, Kentaro Uesugi, Makiko Ohtake, Takashi Matsushima, Kazuo Terakado, Erik M. Galimov
Summary: This study used X-ray microtomography imaging to investigate the three-dimensional shapes of lunar regolith particles and found that they are more equant compared to particles from asteroids. The study also revealed a correlation between particle shape and petrographic textures of the lunar particles.
EARTH PLANETS AND SPACE
(2022)
Article
Astronomy & Astrophysics
Ryo Ogawa, Akiko M. Nakamura, Ayako Suzuki, Sunao Hasegawa
Summary: Research indicates that the depth and diameter of impact craters on the surface of metallic bodies decrease with decreasing temperature and velocity, with a smaller depth/diameter ratio under low temperature and low velocity conditions. Craters formed by metallic projectiles have larger depth/diameter ratios compared to those formed by rock projectiles.
Article
Geochemistry & Geophysics
K. Onodera, T. Kawamura, S. Tanaka, Y. Ishihara, T. Maeda
Summary: The study estimated scattering properties in the lunar crust through numerical simulations near the Apollo 12 landing site, successfully reproducing seismic signals excited by artificial impacts. It revealed the intense scattering structure extending down to 20 km in the northern region and to 10 km in the southern region from the landing site, requiring a smaller P- and S-wave velocity ratio compared to conventional values.
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
(2021)
Article
Chemistry, Physical
Xiang Yu, Tianyu Yang, Chenhui Lv, Lichen Wang, Ruoshui Liu, Di'an Wu, Daming Tian, Shuli He
Summary: 10-nm MnxFe3-xO4 (x = 0, 0.3, 0.7) magnetic nanoparticles with single cubic structure were synthesized by thermal decomposition method. The magnetic properties and cation oxidation state of the nanoparticles were investigated. Mn doping induced lattice expansion and the fraction of Mn2+ and Mn3+ in the nanoparticles varied with different Mn concentrations. The saturation magnetization of the nanoparticles decreased with increasing Mn concentration due to lattice distortion, while preserving a constant value for Mn0.3Fe2.7O4 nanoparticles. Increasing the ratio of Mn2+ and avoiding lattice distortion are beneficial for improving the magnetic properties of manganese ferrite. In addition, Mn0.3Fe2.7O4 @SiO2 nanoparticles showed good magnetic hyperthermia properties in vitro.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Lingxiang Shi, Yang Shao, Ziyi Fan, Ranbin Wang, Chenyu Lu, Kefu Yao
Summary: High-entropy metallic glasses (HE-MGs) are a new class of materials with unique properties. However, the understanding of composition-structure-property relationships is limited. We propose a framework + fluctuation model based on the Bethe-Slater (BS) curve, which explains the effect of the short-range distribution of metal elements on the magnetism of HE-MGs. The model is further confirmed by ab initio molecular dynamics simulations and provides insights into the development of high-performance HE-MGs.
Article
Chemistry, Physical
Zbigniew Stoklosa, Piotr Kwapulinski, Malgorzata Karolus
Summary: The magnetization processes in amorphous alloys based on iron are discussed in detail in this paper. The aim was to measure the stabilization energy associated with the presence of microvoids and determine the interaction energy between relaxators and spontaneous magnetization vector for amorphous Fe78Si13B9 alloys. A structural analysis of the alloys using X-ray measurements at the subsequent stages of crystallization was also performed.
Article
Chemistry, Multidisciplinary
Dan Yang, Jiajia Wu, Hualong Hong, Jingchun Liu, Chongling Yan, Haoliang Lu
Summary: Research has shown that magnetic particles in urban roadside dust have significantly higher levels than those in topsoil, with the presence of local and exogenous magnetite-like materials contributing to the elevated magnetic properties.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Geochemistry & Geophysics
Shengxia Gong, Mark Wieczorek
Summary: Magnetic field measurements on Mars indicate strong crustal magnetic anomalies, with differences in magnetization depths between the northern and southern hemispheres attributed to distinct origins of magnetic materials. The study suggests that the deep remanent magnetization in the southern hemisphere may be a result of excavation of strong primordial magnetic materials from the Borealis impact basin in the northern hemisphere.
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
(2021)
Article
Chemistry, Multidisciplinary
Joanna D. Stachowska, Monika B. Gamza, Claire Mellor, Ella N. Gibbons, Marta J. Krysmann, Antonios Kelarakis, Elzbieta Gumieniczek-Chlopek, Tomasz Straczek, Czeslaw Kapusta, Anna Szwajca
Summary: We present a simple strategy to generate a family of carbon dots/iron oxide nanoparticles with tunable composition and excellent properties, including antimicrobial activity and bioimaging capability, showing great potential for the development of advanced diagnostic tools.
Article
Astronomy & Astrophysics
Michelle R. Kirchoff, Simone Marchi
Summary: The lunar crater chronology is built by connecting radiometric ages of sampled terrains with the areal crater densities, particularly N(>1). However, the influence of terrain properties on crater densities and size-frequency distributions has been overlooked in previous studies. In this research, the Model Production Function (MPF) chronology is used to incorporate terrain properties into computing N(>1) and absolute model ages (AMAs). The analysis of terrain properties allows for more accurate age determinations and provides reference values for different lunar terrains.
Article
Nanoscience & Nanotechnology
C. Y. Liu, Y. X. Zhang, G. Yuan, C. Y. Zhang, J. Kang, R. D. K. Misra
Summary: Fe-based amorphous ribbons produced by twin-roll strip casting often suffer from high coercivity and annealing brittleness. However, multiple-rapid annealing (MRA) can significantly improve the magnetic properties of the ribbons by reducing coercivity and enhancing magnetic induction.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Correction
Multidisciplinary Sciences
Valerie Andrieu-Ponel, Pierre Rochette, Francois Demory, Hulya Alcicek, Nicolas Boulbes, Didier Bourles, Cahit Helvaci, Anne-Elisabeth Lebatard, Serdar Mayda, Henri Michaud, Anne-Marie Moigne, Sebastien Nomade, Mireille Perrin, Philippe Ponel, Claire Rambeau, Amelie Vialet, Belinda Gambin, Mehmet Cihat Alcicek
SCIENTIFIC REPORTS
(2022)
Editorial Material
Geology
Pierrick Roperch, Jerome Gattacceca, Millarca Valenzuela, Bertrand Devouard, Jean-Pierre Lorand, Pierre Rochette, Claudio Latorre, Pierre Beck
Article
Geochemistry & Geophysics
Hamed Pourkhorsandi, Jerome Gattacceca, Pierre Rochette, Thomas Smith, Lydie Bonal, Massimo D'Orazio, Bertrand Devouard, Corinne Sonzogni, Vinciane Debaille
Summary: The text discusses the discovery and characteristics of the Famenin meteorite in Famenin, Iran in 2015, as well as its chemical composition, origin, and classification. It suggests that Famenin is an intermediate type of ordinary chondrite with features between H and L chondrites, leading to the proposal of a new designation, HL group, to accommodate such meteorites.
METEORITICS & PLANETARY SCIENCE
(2022)
Article
Geochemistry & Geophysics
Cheikh Ahmadou Bamba Niang, David Baratoux, Pierre Rochette, Regis Braucher, Wolf Uwe Reimold, Philippe Lambert, Dinna Pathe Diallo, Vincent Regard, Sebastien Carretier, Mark W. Jessell, Gayane Faye, Christian Koeberl
Summary: The Bosumtwi impact structure in Ghana is a remarkable and valuable natural laboratory to study erosion and weathering processes. The study reveals the impacts of these processes on the structure's morphology and provides insights into the factors controlling erosion rates. The circular potassium anomalies observed in radiometric surveys in tropical regions could potentially indicate the presence of impact structures.
METEORITICS & PLANETARY SCIENCE
(2022)
Article
Geochemistry & Geophysics
Yoann Quesnel, Natalia S. Bezaeva, Dilyara M. Kuzina, Pierre Rochette, Jerome Gattacceca, Minoru Uehara, Dmitry D. Badyukov, Bulat M. Nasyrtdinov, Dmitry A. Chareev, Cedric Champollion
Summary: The Karla impact structure in Tatarstan, Russia, is a poorly known feature with little topographic expression and limited bedrock exposure. The age of the impact is uncertain, estimated to be between 4 and 60 million years ago, with a more likely upper Miocene age. In 2019, gravity and magnetic field surveys were conducted to explore the size and structure of Karla. The data revealed a complex impact structure with a diameter of 8-10 km, confirming the previous assumptions. A numerical model based on the potential-field data and petrophysical properties measured on collected samples was constructed, providing further insights into the structure.
METEORITICS & PLANETARY SCIENCE
(2022)
Article
Geochemistry & Geophysics
P. Rochette, N. S. Bezaeva, P. Beck, V Debaille, L. Folco, J. Gattacceca, M. Gounelle, M. Masotta
Summary: During the systematic magnetic susceptibility survey of the Paris Museum Australasian tektite collection, three previously overlooked occurrences of volcanic glass were identified. The volcanic glass samples were similar to tektites based on their anomalous magnetic properties, high water content, presence of microcrystals, and anomalous chemical composition. The study warns that glass samples with anomalous properties found among tektite collections may be volcanic pseudotektites instead of real tektites with anomalous composition.
METEORITICS & PLANETARY SCIENCE
(2022)
Article
Geochemistry & Geophysics
Dilyara M. Kuzina, Jerome Gattacceca, Natalia S. Bezaeva, Dmitry D. Badyukov, Pierre Rochette, Yoann Quesnel, Francois Demory, Daniel Borschneck
Summary: This study presents a paleomagnetic analysis of the Karla impact structure in Russia, revealing the presence of a chemical remanent magnetization in a melt-bearing lithic breccia layer. The research also suggests that the hydrothermal activity associated with the impact crater lasted for approximately 100,000 years, indicating the long-term existence of such systems.
METEORITICS & PLANETARY SCIENCE
(2022)
Article
Geochemistry & Geophysics
Jerome Gattacceca, Francis M. McCubbin, Jeffrey Grossman, Audrey Bouvier, Nancy L. Chabot, Massimo D'Orazio, Cyrena Goodrich, Ansgar Greshake, Juliane Gross, Mutsumi Komatsu, Bingkui Miao, Devin Schrader
Summary: The Meteoritical Bulletin 110 lists 2802 meteorites approved by the Nomenclature Committee of the Meteoritical Society in 2021, including 10 falls and a variety of meteorites classified by type and location.
METEORITICS & PLANETARY SCIENCE
(2022)
Article
Geochemistry & Geophysics
Jerome Gattacceca, Francis M. M. McCubbin, Jeffrey N. N. Grossman, Devin L. L. Schrader, Nancy L. L. Chabot, Massimo D'Orazio, Cyrena Goodrich, Ansgar Greshake, Juliane Gross, Katherine Helen Joy, Mutsumi Komatsu, Bingkui Miao
Summary: Meteoritical Bulletin 111 documents 3094 meteorites approved by the Nomenclature Committee of the Meteoritical Society in 2022. It includes 11 falls and various types of meteorites, such as ordinary chondrites, carbonaceous chondrites, lunar meteorites, etc. The majority of these meteorites were found in Antarctica.
METEORITICS & PLANETARY SCIENCE
(2023)
Article
Geochemistry & Geophysics
Minoru Uehara, Jerome Gattacceca
Summary: We have developed a user-friendly magnetic susceptibility meter for identifying meteorites. The meter, based on an LC resonance circuit, directly displays the mass-normalized magnetic susceptibility and provides an approximation of electrical conductivity to distinguish different types of meteorites. Through testing, we have found that the accuracy of the instrument allows for distinguishing most meteorites from terrestrial rocks and even different meteorite groups, making it a valuable tool for meteorite hunters, collectors, and non-specialists. It also has the advantage over magnet testing as it does not affect the paleomagnetic records of meteorites.
METEORITICS & PLANETARY SCIENCE
(2023)
Article
Geochemistry & Geophysics
Trygve Prestgard, Pierre Beck, Lydie Bonal, Jolantha Eschrig, Jerome Gattacceca, Corinne Sonzogni, Lisa Kramer Ruggiu
Summary: In this study, optical and IR reflectance and transmission spectra of 25 CR chondrites were conducted to evaluate the extent of aqueous alteration on the CR parent body and identify possible parent body candidates. The results indicate that most CRs experienced limited aqueous alteration in the matrix and may originate from a continuum of X-to-C complex asteroids. This has significant implications for the Psyche mission.
METEORITICS & PLANETARY SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
Maryam Sheibi, Nima Rahimi, Pierre Rochette, Francois Demory, Hassan Mirnejad
Summary: This study investigates the magnetic properties of rocks in the Tafresh area of Iran's central Urumieh-Dokhtar magmatic arc. The results suggest that hydrothermal alteration affects magnetic characteristics, the Nayband Formation was formed under a crustal extension regime in the Late Triassic, tectonic activity led to rock compression, and the magnetic properties of intrusions indicate their emplacement in extensional spaces. Furthermore, the study demonstrates that hydrothermal alteration can decrease magnetic susceptibility and increase porosity in rocks.
Article
Geochemistry & Geophysics
Elias N. Mansbach, Benjamin P. Weiss, Neesha R. Schnepf, Eduardo A. Lima, Caue S. Borlina, Nilanjan Chatterjee, Jerome Gattacceca, Minoru Uehara, Huapei Wang
Summary: This study conducted a magnetic and paleomagnetic study of the Acapulco acapulcoite, a primitive achondrite, to understand its ferromagnetic minerals and their recording properties. The discovery of tetrataenite in ALs provides important mineralogical evidence for slow cooling.
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
(2023)
Meeting Abstract
Geochemistry & Geophysics
M. Tauseef, I. Leya, R. Braucher, F. Lechleitner, J. Gattacceca, S. Szidat
METEORITICS & PLANETARY SCIENCE
(2023)
Meeting Abstract
Geochemistry & Geophysics
B. Zanda, A. Egal, A. Steinhausser, S. Bouley, F. Colas, L. Ferriere, D. Vida, H. Devillepoix, L. Maquet, K. Antier, P. Vernazza, P. Sans-Jofre, J. Gattacceca, J. Vaubaillon, P. Jenniskens, I. Baziotis, M. Gounelle, A. Malgoyre, P. Beck
METEORITICS & PLANETARY SCIENCE
(2023)
Article
Geochemistry & Geophysics
Lingyu Zhang, Kristoffer Szilas
Summary: This study presents new petrological and geochemical data for the Narssaq Ultramafic Body (NUB) in the Itsaq Gneiss Complex of SW Greenland. The results indicate that the ultramafic rocks of NUB are not mantle residues, but instead represent crustal cumulates derived from high-Mg magmas.
EARTH AND PLANETARY SCIENCE LETTERS
(2024)
Article
Geochemistry & Geophysics
Rong Xu, Sarah Lambart, Oliver Nebel, Ming Li, Zhongjie Bai, Junbo Zhang, Ganglan Zhang, Jianfeng Gao, Hong Zhong, Yongsheng Liu
Summary: This study investigated the iron isotope compositions of Cenozoic basalts in Southeast China, finding significant variations related to different types of basalts and their respective sources.
EARTH AND PLANETARY SCIENCE LETTERS
(2024)
Article
Geochemistry & Geophysics
C. J. Ebinger, Miriam C. Reiss, Ian Bastow, Mary M. Karanja
Summary: The East African rift system is formed above mantle upwellings and the formation of rifts is related to lithospheric thinning and magmatic activity. The amount of splitting varies spatially and the fast axes are predominantly parallel to the orientation of the rifts. Thick lithospheric modules have less splitting and different orientations, which may indicate mantle plume flow. Splitting rotates and increases in strength as it enters the rift zones, suggesting that the anisotropy is mainly present at shallow depths.
EARTH AND PLANETARY SCIENCE LETTERS
(2024)
Correction
Geochemistry & Geophysics
Ekaterina Rojas-Kolomiets, Owen Jensen, Michael Bizimis, Gene Yogodzinski, Lukas Ackerman
EARTH AND PLANETARY SCIENCE LETTERS
(2024)
Article
Geochemistry & Geophysics
Robert W. Nicklas, Igor S. Puchtel, Ethan F. Baxter
Summary: Oxygen fugacity is a fundamental parameter for understanding redox processes in igneous systems. This study compares the Fe-XANES oxybarometry method with the V-in-olivine method for evaluating fO(2) in MORB lavas. The results show that the V-in-olivine method is not applicable to samples with low MgO content, and that the majority of Archean komatiite sources have lower fO(2) than modern MORB.
EARTH AND PLANETARY SCIENCE LETTERS
(2024)
Article
Geochemistry & Geophysics
Chunfei Chen, Stephen F. Foley, Sebastian Tappe, Huange Ren, Lanping Feng, Yongsheng Liu
Summary: The volatile components CO2 and H2O play a major role in mantle melting and heterogeneity. In this study, Ca isotopes were used to trace the lithological heterogeneity in alkaline magmatic rocks. The results revealed the presence of K-richterite and carbonate components as the source of alkaline magmas with low delta 44/40Ca values. These findings highlight the importance of Ca isotopes as a robust tracer of lithological variation caused by volatiles in the Earth's upper mantle.
EARTH AND PLANETARY SCIENCE LETTERS
(2024)
Article
Geochemistry & Geophysics
Timothee Jautzy, Gilles Rixhon, Regis Braucher, Romain Delunel, Pierre G. Valla, Laurent Schmitt, Aster Team
Summary: Although the current approach to estimate catchment-wide denudation rates using only 10Be concentrations has made significant progress in geomorphology, this study argues for the inclusion of 26Al measurements and testing of steady-state assumptions in slow eroding, formerly glaciated landscapes. The study conducted measurements of both 10Be and 26Al in stream sediments from the Vosges Massif in France and found that elevation, slope, channel steepness, and precipitation were the primary factors controlling denudation rates. The study also revealed a significant relationship between the extent of past glaciation and the cosmogenic (un-)steadiness in the stream sediments.
EARTH AND PLANETARY SCIENCE LETTERS
(2024)
Article
Geochemistry & Geophysics
Erik van der Wiel, Douwe J. J. van Hinsbergen, Cedric Thieulot, Wim Spakman
Summary: Numerical models of Earth's mantle dynamics can predict the vigour and mixing of mantle flow, and the average slab sinking rates are an unexplored parameter that can provide intrinsic information on these characteristics. Through numerical experiments, it has been found that slab sinking rates are strongly correlated with mantle convection and mixing, and may explain geochemical observations from hotspot volcanoes.
EARTH AND PLANETARY SCIENCE LETTERS
(2024)
