Results 161 to 170 of about 3,020 (234)

Thermal histories of El Médano 300 (EM 300) and Northwest Africa 8155 (NWA 8155): Implications for the diversity of IAB‐ungrouped iron meteorites and their parent bodies

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1763-1787, August 2026.
Abstract This study provides the first petrographic, crystallographic, and chemical comparison between El Médano 300 (EM 300) and Northwest Africa 8155 (NWA 8155), two particular IAB‐ungrouped iron meteorites. Both contain exceptionally large graphite nodules and “flowers”, providing unique insights into carbon behavior in metallic melts and cooling ...
L. Perez, M. Roskosz, F. Danoix, L. Kern, V. Megevand, C. Brillatz, B. Devouard, J. Gattacceca, M. Gounelle   +8 more
wiley   +1 more source

Determination of stable carbon isotope ratios for molecules in natural organic matter using ESI FT-ICR MS. [PDF]

Sci Adv
Gao S, Koch BP, Kümmel S, Tebben J, Lechtenfeld OJ.   +4 more
europepmc   +1 more source

Reassessing the organic carbon budget in the Murchison meteorite through an extraction–recovery mass‐balance approach

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1729-1741, August 2026.
Abstract A substantial fraction of organic carbon in carbonaceous chondrites has long been described as “missing,” reflecting incomplete recovery and limited resolution of operationally defined organic components. Here, we present a quantitative reassessment of the carbon budget in the Murchison meteorite using an integrated extraction–recovery mass ...
Hina Dohi, Minako Hashiguchi, Koichi Mimura   +2 more
wiley   +1 more source

Sulfur isotopes from the lunar farside reveal global volatile loss following the giant impact. [PDF]

Nat Commun
Li Y, Wang Z, Zhang W, Zong K, She Z, He Q, Zheng J, Li T, Pan F, Chen X, Crnobrnja K, Xiao L, Hu Z, Wu X, Liu Y, Siebert J, Moynier F.   +16 more
europepmc   +1 more source

Evaluating maturity of organic matter in hydrated C1 and CM‐like clasts and a dehydrated clast within a polymict eucrite and a howardite

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1965-1993, August 2026.
Abstract Volatile‐rich xenolithic clasts in different types of brecciated meteorites represent unique pristine solar system material. This study investigates the maturity and thermal history of organic matter using Raman spectroscopy and aqueous alteration effects using infrared spectroscopy in the matrix of 15 volatile‐rich clasts (C1 and CM‐like ...
Swarna Prava Das, Alessandro Maturilli, Aurélie Van den Neucker, Markus Patzek, Dipak Kumar Panda, Gopal K. Pradhan, Guneshwar Thangjam, Surya Snata Rout   +7 more
wiley   +1 more source

Quantitative stable isotope probing (qSIP)-informed metagenomics identifies viruses infecting chemoautotrophs. [PDF]

Nat Commun
Luo E, Pham ND, Rogers TJ, Sheam MM, Benner BE, Vallino JJ, Trubl G, Huber JA.   +7 more
europepmc   +1 more source

Physiology and Transcriptomics Reveal Divergent Strategies of Mycorrhiza‐Mediated Drought Adaptation in Poplar

Plant, Cell &Environment, Volume 49, Issue 8, Page 5078-5094, August 2026.
ABSTRACT Mycorrhizal symbiosis shapes plant growth and stress resilience. Here, we compared physiological and molecular responses of poplars (P. x canescens) colonised by Paxillus involutus (Pi) or Cenococcum geophilum (Cg) under control conditions, drought stress and recovery.
Huili Shi, Zhuchou Lu, Andrea Polle
wiley   +1 more source

Martian differentiation history inferred from copper isotopes. [PDF]

Nat Commun
Wang DL, Zhu D, Xu YK, Wang SJ, Li SJ, Liu ZR, Li Y, Li Z, Tang H, Li XY, Liu JZ.   +10 more
europepmc   +1 more source

Evolution Model for the Paleoproterozoic Talvivaara Mudstone‐Hosted Ni‐Zn‐Cu‐Co Deposit in Fennoscandia

Terra Nova, Volume 38, Issue 4, Page 221-232, August 2026.
ABSTRACT The Paleoproterozoic Talvivaara mudstone is a very large sulfidic Ni‐Co deposit that records enhanced organic matter accumulation during the global Shunga Event. Here, rock geochemistry and microscale S and Fe isotope composition of in situ pyrrhotites and pyrites are studied in well‐characterised, well‐preserved drill core samples.
Raimo Lahtinen, Jaakko J. Laitala, Joonas J. Virtasalo, Martin J. Whitehouse   +3 more
wiley   +1 more source

Lithium isotope evidence for enhanced continental weathering triggering the late Paleozoic greenhouse-to-icehouse climate transition. [PDF]

Natl Sci Rev
Zhang F, Wei GY, Maffre P, Li Z, Zhou J, Pohl A, Lin YB, Elrick M, Cheng K, Pogge von Strandmann PAE, Shen SZ.   +10 more
europepmc   +1 more source