Contribution of deep-sourced carbon from hydrocarbon seeps to sedimentary organic carbon: Evidence from radiocarbon and stable isotope geochemistry

2021 ◽  
pp. 120572
Author(s):  
Dong Feng ◽  
John W. Pohlman ◽  
Jörn Peckmann ◽  
Yuedong Sun ◽  
Yu Hu ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Organic Carbon ◽  
Isotope Geochemistry ◽  
Stable Isotope Geochemistry ◽  
Hydrocarbon Seeps ◽  
Sedimentary Organic Carbon

Stable isotope geochemistry and palynology of the late Precambrian to Early Cambrian sequence in Newfoundland

1992 ◽  
Vol 29 (8) ◽  
pp. 1662-1673 ◽  
Author(s):  
Harald Strauss ◽  
Stefan Bengtson ◽  
Paul M. Myrow ◽  
Gonzalo Vidal
Keyword(s):  
Stable Isotope ◽  
Organic Carbon ◽  
Isotope Geochemistry ◽  
Depositional Environments ◽  
Early Cambrian ◽  
Bacterial Sulfate Reduction ◽  
Stable Isotope Geochemistry ◽  
Forming Process ◽  
Late Precambrian ◽  
Clastic Sediments

A sequence of clastic sediments in southeastern Newfoundland straddling the Precambrian–Cambrian boundary has been investigated for its stable isotope geochemistry of carbon and sulfur and acid-resistant organic-walled microfossils. A detailed study of the Chapel Island Formation, which includes the boundary interval, has revealed fluctuations in the isotopic composition of organic carbon. These are largely interpreted as caused by differences in the depositional environments. Highly variable sulfur isotopic compositions indicate bacterial sulfate reduction as a pyrite-forming process, sometimes under sulfate-limited conditions. Palynological results are quite limited with respect to diagnostic microfossils.

Intelligent prediction of stable isotope geochemistry of coalbed gas for its origin

2021 ◽  
Author(s):  
MOHAMMAD ASIF ◽  
Lei Wang ◽  
Randy Hazlett ◽  
Yu-Shu Wu ◽  
Keka Ojha
Keyword(s):  
Stable Isotope ◽  
Isotope Geochemistry ◽  
Stable Isotope Geochemistry ◽  
Coalbed Gas

C–O stable isotope geochemistry and 40Ar/39Ar geochronology of the Bear Lodge carbonatite stockwork, Wyoming, USA

Lithos ◽  
2019 ◽  
Vol 324-325 ◽  
pp. 640-660 ◽  
Author(s):  
Allen K. Andersen ◽  
Peter B. Larson ◽  
Michael A. Cosca
Keyword(s):  
Stable Isotope ◽  
Isotope Geochemistry ◽  
Stable Isotope Geochemistry

scholarly journals Book reviews: Stable isotope geochemistry

Geologos ◽  
2016 ◽  
Vol 22 (1) ◽  
pp. 79-80
Author(s):  
Karina Apolinarska
Keyword(s):  
Stable Isotope ◽  
Isotope Geochemistry ◽  
Stable Isotope Geochemistry
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