期刊: GEOCHIMICA ET COSMOCHIMICA ACTA, 2023; 349 ()
A biotic origin of isotopically light graphite in Hadean zircon remains contested, in part because it is unclear how biogenic carbon in sediments beha......
期刊: GEOCHIMICA ET COSMOCHIMICA ACTA, 2023; 351 ()
Isotope dilution W whole-rock data, coupled with data for other trace elements in 42 peridotite xenoliths from Tariat (Mongolia), Yangyuan and Hannuob......
期刊: GEOCHIMICA ET COSMOCHIMICA ACTA, 2023; 352 ()
We undertook Zr isotope measurements on zircon, titanite, biotite, amphibole, and whole rocks from the La Posta pluton (Peninsular Ranges, southern Ca......
期刊: GEOCHIMICA ET COSMOCHIMICA ACTA, 2023; 352 ()
The end-Devonian Hangenberg Crisis was one of the biggest Phanerozoic mass extinctions. However, the mechanism(s) that triggered this event is still d......
期刊: GEOCHIMICA ET COSMOCHIMICA ACTA, 2023; 361 ()
While nitrate (NO3-) serves as a vital nutrient for soil organisms, the lack of knowledge on its sources and cycling in Antarctic soils does not allow......
期刊: GEOCHIMICA ET COSMOCHIMICA ACTA, 2023; 361 ()
In this study, the boron isotopic composition of Paleoproterozoic seawater is reconstructed using 811B of tourmaline from the Paleoproterozoic Pb-Zn d......
期刊: GEOCHIMICA ET COSMOCHIMICA ACTA, 2023; 362 ()
Branched and isoprenoidal glycerol dialkyl glycerol tetraethers (br- and isoGDGTs) are membrane lipids produced by bacteria and archaea, respectively.......
期刊: GEOCHIMICA ET COSMOCHIMICA ACTA, 2023; 361 ()
Global environmental change can substantively alter soil carbon storage and dynamics in agroecosystems. However, investigations of soil organic matter......
期刊: GEOCHIMICA ET COSMOCHIMICA ACTA, 2023; 344 ()
Fe-bearing clay minerals are frequently present in oil reservoirs as potential electron acceptor. Compounds in crude oil may mediate microbial reducti......
期刊: GEOCHIMICA ET COSMOCHIMICA ACTA, 2023; 346 ()
Minerals associated with ores (gangue minerals) record the physicochemical conditions of ore-forming fluids. Whether and/or how they affect the solubi......
期刊: GEOCHIMICA ET COSMOCHIMICA ACTA, 2023; 344 ()
Ocean oxygenation during the Ediacaran Period (635-541 Ma) is thought to be a potential stimulus for the emergence and diversification of early animal......
期刊: GEOCHIMICA ET COSMOCHIMICA ACTA, 2023; 348 ()
A greater quantity of halogens (F, Cl, Br, and I) appear to be subducted globally than are erupted at magmatic arcs, requiring either an increase in t......
期刊: GEOCHIMICA ET COSMOCHIMICA ACTA, 2023; 348 ()
Asteroid 4 Vesta is the largest known differentiated body in the asteroid belt, and is thought to be the likely parent body of howardite, eucrite, and......
期刊: GEOCHIMICA ET COSMOCHIMICA ACTA, 2023; 351 ()
Early diagenesis of marine organic matter dramatically impacts Earth's surface chemistry by changing the burial potential of carbon and promoting the ......