[HTML][HTML] Molybdenum in natural waters: A review of occurrence, distributions and controls

PL Smedley, DG Kinniburgh - Applied Geochemistry, 2017 - Elsevier
Molybdenum is an essential trace element for human, animal and plant health and has
played an important part in the evolution of life on earth. Nonetheless, exposure to the …

Thermochemical sulfate reduction in sedimentary basins and beyond: A review

C Cai, H Li, K Li, D Wang - Chemical Geology, 2022 - Elsevier
Thermochemical sulfate reduction (TSR) is a set of redox reactions between organic matter
and sulfates at temperatures> 120° C, and occurs in varied environments including deeply …

Reexamination of 2.5-Ga “whiff” of oxygen interval points to anoxic ocean before GOE

SP Slotznick, JE Johnson, B Rasmussen, TD Raub… - Science …, 2022 - science.org
Transient appearances of oxygen have been inferred before the Great Oxygenation Event
(GOE)[∼ 2.3 billion years (Ga) ago] based on redox-sensitive elements such as Mo and S …

Evidence of molybdenum association with particulate organic matter under sulfidic conditions

TW Dahl, A Chappaz, J Hoek, CJ McKenzie… - …, 2017 - Wiley Online Library
The geochemical behavior of molybdenum (Mo) in the oceans is closely linked to the
presence of sulfide species in anoxic environments, where Fe availability may play a key …

A critical review of molybdenum sequestration mechanisms under euxinic conditions: Implications for the precision of molybdenum paleoredox proxies

R Phillips, J Xu - Earth-Science Reviews, 2021 - Elsevier
The observed difference in molybdenum (Mo) mobility and isotopic fractionation under oxic
versus euxinic (ie, anoxic and sulfidic) aqueous conditions provides a sound operational …

Pyrite morphology as an indicator of paleoredox conditions and shale gas content of the Longmaxi and Wufeng shales in the middle Yangtze area, south China

Z Liu, D Chen, J Zhang, X Lü, Z Wang, W Liao, X Shi… - Minerals, 2019 - mdpi.com
Pyrite is the most common authigenic mineral preserved in many ancient sedimentary rocks.
Pyrite also widely exists in the Longmaxi and Wufeng marine shales in the middle Yangtze …

Molybdenum speciation and burial pathway in weakly sulfidic environments: Insights from XAFS

M Wagner, A Chappaz, TW Lyons - Geochimica et Cosmochimica Acta, 2017 - Elsevier
Sedimentary molybdenum (Mo) accumulation is a robust proxy for sulfidic conditions in both
modern and ancient aquatic systems and has been used to infer changing marine redox …

Do all fractions of organic matter contribute equally in shale porosity? A case study from Upper Ordovician Utica Shale, southern Quebec, Canada

OH Ardakani, H Sanei, A Ghanizadeh, D Lavoie… - Marine and Petroleum …, 2018 - Elsevier
In many unconventional hydrocarbon systems, organic matter (OM) substantially contributes
to total porosity of the rock that led to a positive correlation between total organic carbon …

Relative sea-level changes and organic matter enrichment in the Upper Ordovician-Lower Silurian Wufeng-Longmaxi Formations in the Central Yangtze area, China

L Chen, S Jiang, P Chen, X Chen, B Zhang… - Marine and Petroleum …, 2021 - Elsevier
Based on the sedimentological and geochemical analysis of total organic carbon (TOC) and
major and trace elements in the marine Upper Ordovician-Lower Silurian Wufeng-Longmaxi …

Molybdenum isotope fractionation during adsorption to organic matter

EK King, SS Perakis, JC Pett-Ridge - Geochimica et Cosmochimica Acta, 2018 - Elsevier
Organic matter is of emerging interest as a control on molybdenum (Mo) biogeochemistry,
and information on isotope fractionation during adsorption to organic matter can improve …