Sulfate-driven anaerobic oxidation of methane inferred from trace-element chemistry and nickel isotopes of pyrite
In marine sediments, formation of pyrite (FeS 2) is promoted by both organoclastic sulfate
reduction (OSR) and sulfate-driven anaerobic oxidation of methane (SD-AOM), and these …
reduction (OSR) and sulfate-driven anaerobic oxidation of methane (SD-AOM), and these …
Postdepositional behavior of molybdenum in deep sediments and implications for paleoredox reconstruction
Molybdenum (Mo) is a trace element sensitive to oceanic redox conditions. The fidelity of
sedimentary Mo as a paleoredox proxy of coeval seawater depends on the extent of Mo …
sedimentary Mo as a paleoredox proxy of coeval seawater depends on the extent of Mo …
Isotopically light Mo in sediments of methane seepage controlled by the benthic Fe–Mn redox shuttle process
Methane seepage has been extensively observed in various continental margin settings. It
has profound effects on the marine redox environment and the molybdenum (Mo) cycles in …
has profound effects on the marine redox environment and the molybdenum (Mo) cycles in …
Porewater geochemistry indicates methane seepage in the Okinawa Trough and its implications for the carbon cycle of the subtropical West Pacific
Abstract The Kuroshio Current, originating from the West Pacific Warm Pool and flowing
through the Okinawa Trough, connects the equator and the subtropical West Pacific and …
through the Okinawa Trough, connects the equator and the subtropical West Pacific and …
[HTML][HTML] Tracking Depositional Architecture and Diagenetic Evolution in the Jurassic Carbonates, Trans Indus Ranges, NW Himalayas
The evolution of Jurassic carbonates is globally significant for understanding the
depositional framework, diagenetic phases and sedimentary characteristics of shallow …
depositional framework, diagenetic phases and sedimentary characteristics of shallow …
Isotope evidence for the enrichment mechanism of molybdenum in methane-seep sediments: Implications for past seepage intensity
M Jin, F Chen, N Li, J Peckmann, R Mathur… - … et Cosmochimica Acta, 2024 - Elsevier
Methane release from marine sediments strongly influences the local seafloor environment
and ecosystems, and may impact Earth's climate system. Recent studies revealed …
and ecosystems, and may impact Earth's climate system. Recent studies revealed …
Late Quaternary marine transgressions inferred from the pyrite sulfur content and isotopes within core sediments from the southeast coast of China
Paleoenvironmental reconstructions of coastal areas during geological history are critical for
understanding past responses to marine transgression. Identifying transgressive layers in …
understanding past responses to marine transgression. Identifying transgressive layers in …
Application of pyrite trace-metal and S and Ni isotope signatures to distinguish sulfate-versus iron-driven anaerobic oxidation of methane
C Chen, J Wang, TJ Algeo, JM Zhu, SW Poulton… - Chemical …, 2024 - Elsevier
The formation of authigenic pyrite in marine sediments involves multiple reactions between
ferrous iron (Fe 2+) and hydrogen sulfide (H 2 S). Ferrous iron is commonly provided …
ferrous iron (Fe 2+) and hydrogen sulfide (H 2 S). Ferrous iron is commonly provided …
Copper and zinc isotopic compositions of methane-derived carbonates: Implications for paleo-methane seepage and paleoenvironmental proxies
G Zhang, Y Deng, F Chen, M Li… - Geological …, 2024 - pubs.geoscienceworld.org
Copper-zinc isotopic excursions in carbonate sedimentary successions are used to trace
oceanic chemistry fluctuations that occurred in the geological past. However, whether …
oceanic chemistry fluctuations that occurred in the geological past. However, whether …
Seawater sulphate heritage governed early Late Miocene methane consumption in the long-lived Lake Pannon
Sulphate deficiency makes lake environments a key source of atmospheric methane
because sulphate-driven anaerobic oxidation of methane (SD-AOM) is hindered. Miocene to …
because sulphate-driven anaerobic oxidation of methane (SD-AOM) is hindered. Miocene to …