Results 131 to 140 of about 64,238 (294)
Abstract Multiple drillings in the Yorke Peninsula, South Australia, recently confirmed the presence of natural hydrogen (H2) in shallow sedimentary units. While radiolysis and Fe‐oxidation in the basement are potential generation mechanisms, their respective contributions remain unconstrained.
Ugo Geymond +15 more
wiley +1 more source
Hydrocarbon Migration and Diagenesis in Miocene Marine-Shelf Deposits: ABSTRACT
Ray E. Ferrell
openalex +1 more source
Constraining the Hydration of Clay Minerals and Abundances of Amorphous Phases in Gale Crater, Mars
Abstract Both water and organic matter are required for the development and persistence of life. Phyllosilicates (clay minerals) have high surface areas that easily sorb water and organic matter. The Curiosity rover has investigated several hundred meters of stratigraphy in Gale crater, including where clays were detected from orbit.
Sean Czarnecki +3 more
wiley +1 more source
In Situ Detection of Opal‐A in Jezero Crater, Mars
Abstract We report the in situ detection of amorphous hydrated silica in the Bills Bay abrasion patch, located in the eastern portion of the Margin Unit between the rim of Jezero crater and the western delta. Here, hydrated silica co‐occurs with olivine, Fe‐Mg carbonates, secondary Fe‐Mg silicates, and hydrated Mg‐sulfate as determined by UV Raman ...
Sergei V. Bykov +26 more
wiley +1 more source
Molecular composition of nitrogenous compounds in sea water and recent marine sediments [PDF]
Molecular composition of nitrogenous organic compounds in sea water and ...
Degens, E. T.
core +1 more source
Putative Analogs of Pyrite Suns Forming in Proglacial Alaska Mudflats
Abstract Disc‐shaped pyrite suns of the Pennsylvanian age Anna Shale are thought to have formed where pressure restricted pyrite crystal growth to a flattened disc shape during diagenesis at the Anna Shale and the underlying Herrin coal boundary.
Heather L. Fair +2 more
wiley +1 more source
Sedimentation and diagenesis of the upper Devonian Kakisa Formation, Trout River area, N.W.T.
Donald James. Fyvie
openalex +1 more source
Abstract Climate change is currently driving the expansion of oxygen minimum zones (OMZs), areas of the open ocean with consistently low oxygen levels. Changes in temperature, productivity and consequent respiration, and water mass ventilation drive OMZ expansion and contraction with implications for ecosystem function and biogeochemical cycling ...
Rachel Alcorn +7 more
wiley +1 more source

