A comprehensive review on chromium (Cr) contamination and Cr (VI)-resistant extremophiles in diverse extreme environments

Z Rahman, L Thomas, SPK Chetri, S Bodhankar… - … Science and Pollution …, 2023 - Springer
Chromium (Cr) compounds are usually toxins and exist abundantly in two different forms, Cr
(VI) and Cr (III), in nature. Their contamination in any environment is a major problem. Many …

Chromium isotope geochemistry

L Qin, X Wang - Reviews in Mineralogy and …, 2017 - pubs.geoscienceworld.org
Chromium consists of four stable isotopes (50Cr, 52Cr, 53Cr and 54Cr) with natural
abundances of 4.35%, 83.79%, 9.50% and 2.36%, respectively (Rossman and Taylor 1998) …

How Large Igneous Provinces affect global climate, sometimes cause mass extinctions, and represent natural markers in the geological record

RE Ernst, N Youbi - Palaeogeography, palaeoclimatology, palaeoecology, 2017 - Elsevier
Abstract Large Igneous Provinces (LIPs) can have a significant global climatic effect as
monitored by sedimentary trace and isotopic compositions that record paleo …

Basalt‐seawater interaction, the Plenus Cold Event, enhanced weathering and geochemical change: deconstructing Oceanic Anoxic Event 2 (Cenomanian–Turonian …

HC Jenkyns, AJ Dickson, M Ruhl… - …, 2017 - Wiley Online Library
Abstract Oceanic Anoxic Event 2 (Cenomanian–Turonian: ca 94 Ma) represents a major
palaeoceanographic phenomenon that took place during an interval of extreme global …

[PDF][PDF] Does large igneous province volcanism always perturb the mercury cycle? Comparing the records of Oceanic Anoxic Event 2 and the end-Cretaceous to other …

LME Percival, HC Jenkyns, TA Mather… - American Journal of …, 2018 - ajsonline.org
Mercury (Hg) is increasingly being used as a sedimentary tracer of Large Igneous Province
(LIP) volcanism, and supports hypotheses of a coincidence between the formation of several …

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 …

Diagenetic effects on uranium isotope fractionation in carbonate sediments from the Bahamas

X Chen, SJ Romaniello, AD Herrmann… - … et Cosmochimica Acta, 2018 - Elsevier
Uranium isotope variations (δ 238 U) recorded in sedimentary carbonate rocks are a
promising new proxy for the extent of oceanic anoxia through geological time. However, the …

[KİTAP][B] Iron geochemistry: an isotopic perspective

C Johnson, B Beard, S Weyer - 2020 - Springer
Iron is a remarkable element in its relatively high abundance for its mass and its sensitivity to
(and control of) redox on a planetary scale over geologic time. Numerous volumes have …

Sedimentary mercury enrichments as a marker for submarine large igneous province volcanism? Evidence from the Mid‐Cenomanian event and Oceanic Anoxic …

JD Scaife, M Ruhl, AJ Dickson… - Geochemistry …, 2017 - Wiley Online Library
Abstract Oceanic Anoxic Event 2 (OAE 2), during the Cenomanian‐Turonian transition (∼
94 Ma), was the largest perturbation of the global carbon cycle in the mid‐Cretaceous and …

Bioactive trace metals and their isotopes as paleoproductivity proxies: An assessment using GEOTRACES‐era data

TJ Horner, SH Little, TM Conway… - Global …, 2021 - Wiley Online Library
Phytoplankton productivity and export sequester climatically significant quantities of
atmospheric carbon dioxide as particulate organic carbon through a suite of processes …