Results 91 to 100 of about 13,015 (272)

Interior Rifting Coupled With Peripheral Subduction in the Rodinia Supercontinent: New Insights From the Tarim Craton

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract After assembly, supercontinents are shaped by internal rifting and peripheral subduction. However, the geodynamic relationship between these two processes and their respective contributions to supercontinent breakup remain poorly understood.
Shipeng Liu, Rongfeng Ge, Teng Zhou, Yang Si, Yue Wang   +4 more
wiley   +1 more source

Study of the Extraterrestrial Materials at Antarctica, III : On the Yamato Meteorites

Antarctic Record, 1973
Antarctica is thought to be the most suitable place for searching extraterrestrial materials. Since 1965, we have been studying microtektite and cosmic dust in Antarctica.
Masako SHIMA, Akihiko OKADA, Makoto SHIMA   +2 more
doaj   +1 more source

SNOW COVER OF THE CENTRAL ANTARCTICA (VOSTOK STATION) AS AN IDEAL NATURAL TABLET FOR COSMIC DUST COLLECTION: PRELIMINARY RESULTS ON THE IDENTIFICATION OF MICROMETEORITES OF CARBONACEOUS CHONDRITE TYPE

Лëд и снег, 2015
During the 2010/11 season nearby the Vostok station the 56th Russian Antarctic Expedition has collected surface snow in a big amount from a 3 m deep pit using 15 220 L vol. containers (about 70 kg snow each).
E. S. Bulat, V. A. Celmovich, J.-R. Petit, I. M. Gindilis, S. A. Bulat   +4 more
doaj   +1 more source

60Fe-60Ni chronology of core formation in Mars

, 2014
The timescales of accretion, core formation, and magmatic differentiation in planetary bodies can be constrained using extinct radionuclide systems. Experiments have shown that Ni becomes more siderophile with decreasing pressure, which is reflected in ...
Dauphas, Nicolas, Tang, Haolan
core   +1 more source

Hornblendite in the Lower Crust: A Possible Source for Porphyry Cu Deposits

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Lower crustal sulfide‐bearing Cu‐rich cumulates, mainly occurring as hornblendite, have been proposed as a critical source component for the development of giant porphyry Cu deposits (PCDs); however, their mineralogical and geochemical nature remain elusive.
Guangxu Li, Lingsen Zeng, Li‐E. Gao, Lilong Yan, Haitao Wang, Linghao Zhao   +5 more
wiley   +1 more source

Cometary micrometeorites and input of prebiotic compounds

BIO Web of Conferences, 2014
The apparition of life on the early Earth was probably favored by inputs of extraterrestrial matter brought by carbonaceous chondrite-like objects or cometary material. Interplanetary dust collected nowadays on Earth is related to carbonaceous chondrites
Engrand C.
doaj   +1 more source

Delivery of Dark Material to Vesta via Carbonaceous Chondritic Impacts

, 2012
NASA's Dawn spacecraft observations of asteroid (4) Vesta reveal a surface with the highest albedo and color variation of any asteroid we have observed so far. Terrains rich in low albedo dark material (DM) have been identified using Dawn Framing Camera (
Adams, Andreas Nathues, Andrew W. Beck, Beck, Binzel, Binzel, Bogard, Bottke, Bottke, Buchanan, Buchanan, Christopher T. Russell, Cloutis, Cloutis, Daniel D. Durda, David Blewett, David Mittlefehldt, David Nesvorny, David P. O’Brien, Debra Buczkowski, Desnoyers, Edward A. Cloutis, Elizabeth M. Palmer, Gaffey, Gaffey, Gomes, Gounelle, Grady, Harry Y. McSween, Hasegawa, Hiroi, Holger Sierks, Holsapple, Jaumann, Jean-Philippe Combe, Jennifer E.C. Scully, Jian-Yang Li, Jutzi, Keil, Kris J. Becker, Le Corre, Levison, Love, Love, Lucille Le Corre, Mayne, Megha U. Bhatt, Melosh, Michael J. Gaffey, Mittlefehldt, Nesvorny, Nesvorny´, O’Brien, Paul J. Mann, Reddy, Reddy, Rivkin, Robert Gaskell, Rubin, Sierks, Svetsov, Taylor, Thomas, Thomas B. McCord, Tsiganis, Vishnu Reddy, Wasson, William F. Bottke, Wilson, Wilson, Wilson, Zolensky   +71 more
core   +1 more source

Sugars in Carbonaceous Chondrites [PDF]

Goldschmidt Abstracts, 2020
Yoshihiro Furukawa, Yoshito Chikaraishi, Naohiko Ohkouchi, Nanako Ogawa, Daniel Glavin, Jason Dworkin, Chiaki Abe, Tomoki Nakamura   +7 more
openaire   +1 more source

The mineralogy and alteration history of the Yamato-type (CY) carbonaceous chondrites

, 2023
Martin D. Suttle, A. J. King, Cheryl S. Harrison, Q. H. S. Chan, A. Greshake, R. Bartoschewitz, Andrew G. Tomkins, T. Salge, P. F. Schofield, S. S. Russell   +9 more
openalex   +1 more source

Olivine Microstructure Constraints on Ureilite Parent Body Deformation

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Ureilites are ultramafic achondrites for which the parent body is unknown. Monomict ureilites, consisting primarily of olivine and pyroxene, are thought to represent mantle residues, carrying essential information for their parent body deformation history.
Yaozhu Li, Phil J. A. McCausland, Roberta L. Flemming, Callum J. Hetherington, Bo. Zhao   +4 more
wiley   +1 more source