Trace elements in methane-seep carbonates: Potentials, limitations, and perspectives

D Smrzka, D Feng, T Himmler, J Zwicker, Y Hu… - Earth-Science …, 2020 - Elsevier
Marine authigenic carbonates form shallow-water microbialites, mud mounds, and
hydrocarbon-seep deposits and contain appreciable amounts of trace elements that yield …

[HTML][HTML] Dissolved inorganic carbon pump in methane-charged shallow marine sediments: state of the art and new model perspectives

SA Akam, RB Coffin, HAN Abdulla… - Frontiers in Marine …, 2020 - frontiersin.org
Methane transport from subsurface reservoirs to shallow marine sediment is characterized
by unique biogeochemical interactions significant for ocean chemistry. Sulfate-Methane …

Evaluating the fidelity of the cerium paleoredox tracer during variable carbonate diagenesis on the Great Bahamas Bank

XM Liu, DS Hardisty, TW Lyons, PK Swart - Geochimica et Cosmochimica …, 2019 - Elsevier
Inferring redox conditions for ancient marine environments is critical to our understanding of
biogeochemical cycles over Earth history. Because of the redox sensitivity of cerium (Ce) …

Authigenic carbonates from seeps on the northern continental slope of the South China Sea: New insights into fluid sources and geochronology

H Tong, D Feng, H Cheng, S Yang, H Wang… - Marine and petroleum …, 2013 - Elsevier
Seep carbonates represent excellent archives of seepage activities near seafloors. In order
to provide insights on sources of seeping fluids, stable carbon and oxygen isotopes and …

Mobility and fractionation of REEs during deep weathering of geochemically contrasting granites in a tropical setting, Malaysia

ZM Yusoff, BT Ngwenya, I Parsons - Chemical Geology, 2013 - Elsevier
In this study we describe the mobility and fractionation of REEs in two deep (up to 30m)
tropical weathering profiles developed on two granites from the Kuala Lumpur pluton …

New insights into cerium anomalies and mechanisms of trace metal enrichment in authigenic carbonate from hydrocarbon seeps

Y Hu, D Feng, J Peckmann, HH Roberts, D Chen - Chemical Geology, 2014 - Elsevier
Authigenic carbonates that form at marine hydrocarbon seeps provide a unique geological
archive of past local environmental conditions and pore fluid geochemistry. Recent work on …

Evidence of intense methane seepages from molybdenum enrichments in gas hydrate-bearing sediments of the northern South China Sea

F Chen, Y Hu, D Feng, X Zhang, S Cheng, J Cao, H Lu… - Chemical …, 2016 - Elsevier
The application of molybdenum (Mo) enrichment to sediments can potentially provide
unique constraints on the methane seepage dynamics at continental margins. We report …

Changing redox conditions at cold seeps as revealed by authigenic carbonates from Alaminos Canyon, northern Gulf of Mexico

D Birgel, D Feng, HH Roberts, J Peckmann - Chemical Geology, 2011 - Elsevier
Anaerobic oxidation of methane in anoxic sediments at cold seeps often leads to formation
of authigenic carbonates close to the seafloor along continental margins. Recent work …

The effect of diagenesis and fluid migration on rare earth element distribution in pore fluids of the northern Cascadia accretionary margin

JH Kim, ME Torres, BA Haley, M Kastner, JW Pohlman… - Chemical …, 2012 - Elsevier
Analytical challenges in obtaining high quality measurements of rare earth elements (REEs)
from small pore fluid volumes have limited the application of REEs as deep fluid …

Rare earth elements in authigenic methane-seep carbonates as tracers for fluid composition during early diagenesis

T Himmler, W Bach, G Bohrmann, J Peckmann - Chemical Geology, 2010 - Elsevier
Authigenic carbonates forming at an active methane-seep on the Makran accretionary prism
mainly consist of aragonite in the form of microcrystalline, cryptocrystalline, and botryoidal …