Modeling the impacts of diagenesis on carbonate paleoredox proxies

KV Lau, DS Hardisty - Geochimica et Cosmochimica Acta, 2022‏ - Elsevier
The geochemistry of the carbonate sedimentary record is invaluable for understanding the
ancient seawater evolution of carbon and redox-sensitive elements. However, the …

Enrichment mechanism and prospects of deep oil and gas

F HAO - Acta Geologica Sinica‐English Edition, 2022‏ - Wiley Online Library
With the deepening of oil and gas exploration, the importance of depth is increasingly
highlighted. The risk of preservation of storage space in deep reservoirs is greater than that …

The evolution of Earth's surficial Mg cycle over the past 2 billion years

Z **a, S Li, Z Hu, O Bialik, T Chen… - Science …, 2024‏ - science.org
The surficial cycling of Mg is coupled with the global carbon cycle, a predominant control of
Earth's climate. However, how Earth's surficial Mg cycle evolved with time has been elusive …

Local sedimentary effects shaped key sulfur records after the Great Oxidation Event

RN Bryant, JP Todes, JA Richardson, TC Kalia… - Earth and Planetary …, 2024‏ - Elsevier
Our understanding of Earth's surface oxidant budget following the Great Oxidation Event
(GOE) relies heavily on interpretations of carbon (δ 13 C) and sulfur (δ 34 S) isotope ratios …

Calcium isotopes support spatial redox gradients on the Tethys European margin across the Triassic-Jurassic boundary

AN Prow-Fleischer, Z Lu, CL Blättler, T He, P Singh… - Chemical …, 2025‏ - Elsevier
The end-Triassic mass extinction was among the most severe biotic crises of the
Phanerozoic. It has been linked with the global expansion of marine anoxia, and the …

Oceanic and Sedimentary Microbial Sulfur Cycling Controlled by Local Organic Matter Flux During the Ediacaran Shuram Excursion in the Three Gorges Area, South …

F Matsu'ura, Y Sawaki, T Komiya, J Han… - …, 2024‏ - Wiley Online Library
The increased difference in the sulfur isotopic compositions of sedimentary sulfate
(carbonate‐associated sulfate: CAS) and sulfide (chromium‐reducible sulfur: CRS) during …

Variability of sedimentary pyrite δ34S records: A case study of slope shale of the Green Point Formation in western Newfoundland, Canada

J Li, K Azmy - Chemical Geology, 2024‏ - Elsevier
Abstract The Green Point Formation in western Newfoundland, GSSP of the Cambrian-
Ordovician (Є-O) boundary, is dominated by slope rhythmites of alternating lime mudstone …

Smithian–Spathian carbonate geochemistry in the northern Thaynes Group influenced by multiple styles of diagenesis

JP Todes, FR Blattmann, T Vennemann… - The depositional …, 2024‏ - Wiley Online Library
Abstract The Smithian–Spathian boundary interval is characterised by a positive carbon
isotopic excursion in both δ13Ccarb and δ13Corg, concurrent with a major marine …

Sulphur isotope stratigraphy of drill cuttings and stratigraphic correlation of Permian-Triassic evaporites

J Salisbury, DR Gröcke, T McKie - Frontiers in Earth Science, 2023‏ - frontiersin.org
The stratigraphy of the European late Permian-Triassic commonly lacks chronostratigraphic
constraint due to the scarcity of diagnostic fossils for biostratigraphy. This is particularly true …

[كتاب][B] Chemostratigraphic and numerical modeling constraints on Ordovician climate, carbon cycling, and carbonate diagenesis

YD Adiatma - 2023‏ - search.proquest.com
One of the most important features of our planet is its ability to sustain life in multi million
year timescales. This ability largely depends on Earth's internal system in regulating the …