Disentangling Diagenesis From the Rock Record: An Example From the Permo-Triassic Wordie Creek Formation, East Greenland ...
AbstractThe measurement of isotope ratios in sedimentary rocks deposited over geological time can provide key insights to past environmental change over important intervals in the past. However, it is important to be aware that secondary alteration can overprint the original isotopic records. We dem...
Main Authors: | , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Geophysical Union (AGU)
2018
|
Subjects: | |
Online Access: | https://dx.doi.org/10.17863/cam.20956 https://www.repository.cam.ac.uk/handle/1810/273880 |
id |
ftdatacite:10.17863/cam.20956 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.17863/cam.20956 2024-02-04T10:00:04+01:00 Disentangling Diagenesis From the Rock Record: An Example From the Permo-Triassic Wordie Creek Formation, East Greenland ... Roberts, J Turchyn, AV Wignall, PB Newton, RJ Vane, CH 2018 https://dx.doi.org/10.17863/cam.20956 https://www.repository.cam.ac.uk/handle/1810/273880 en eng American Geophysical Union (AGU) diagenesis Permo-Triassic East Greenland pyrite carbon Wordie Creek Article ScholarlyArticle JournalArticle article-journal 2018 ftdatacite https://doi.org/10.17863/cam.20956 2024-01-05T15:45:09Z AbstractThe measurement of isotope ratios in sedimentary rocks deposited over geological time can provide key insights to past environmental change over important intervals in the past. However, it is important to be aware that secondary alteration can overprint the original isotopic records. We demonstrate this principle using high‐resolution carbon, sulfur, and oxygen isotope measurements in organic carbon, pyrite, and carbonate minerals (δ 13 C org , δ 34 S pyr , δ 34 S CAS , δ 13 C carb , and δ 18 O carb ) and kerogen analyses (HI and OI) from the Wordie Creek Formation, East Greenland. These sediments were initially deposited across the Permo‐Triassic transition, but as we will show, the carbonate record has been altered by interaction with meteoric water significantly after initial deposition. Comparison of the better preserved organic carbon and pyrite records with a proximal Permo‐Triassic sequence reveals significant pyrite‐sulfur isotope variability across the Permo‐Triassic transition. This ... Article in Journal/Newspaper East Greenland Greenland DataCite Metadata Store (German National Library of Science and Technology) Greenland Wordie ENVELOPE(-67.500,-67.500,-69.167,-69.167) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
diagenesis Permo-Triassic East Greenland pyrite carbon Wordie Creek |
spellingShingle |
diagenesis Permo-Triassic East Greenland pyrite carbon Wordie Creek Roberts, J Turchyn, AV Wignall, PB Newton, RJ Vane, CH Disentangling Diagenesis From the Rock Record: An Example From the Permo-Triassic Wordie Creek Formation, East Greenland ... |
topic_facet |
diagenesis Permo-Triassic East Greenland pyrite carbon Wordie Creek |
description |
AbstractThe measurement of isotope ratios in sedimentary rocks deposited over geological time can provide key insights to past environmental change over important intervals in the past. However, it is important to be aware that secondary alteration can overprint the original isotopic records. We demonstrate this principle using high‐resolution carbon, sulfur, and oxygen isotope measurements in organic carbon, pyrite, and carbonate minerals (δ 13 C org , δ 34 S pyr , δ 34 S CAS , δ 13 C carb , and δ 18 O carb ) and kerogen analyses (HI and OI) from the Wordie Creek Formation, East Greenland. These sediments were initially deposited across the Permo‐Triassic transition, but as we will show, the carbonate record has been altered by interaction with meteoric water significantly after initial deposition. Comparison of the better preserved organic carbon and pyrite records with a proximal Permo‐Triassic sequence reveals significant pyrite‐sulfur isotope variability across the Permo‐Triassic transition. This ... |
format |
Article in Journal/Newspaper |
author |
Roberts, J Turchyn, AV Wignall, PB Newton, RJ Vane, CH |
author_facet |
Roberts, J Turchyn, AV Wignall, PB Newton, RJ Vane, CH |
author_sort |
Roberts, J |
title |
Disentangling Diagenesis From the Rock Record: An Example From the Permo-Triassic Wordie Creek Formation, East Greenland ... |
title_short |
Disentangling Diagenesis From the Rock Record: An Example From the Permo-Triassic Wordie Creek Formation, East Greenland ... |
title_full |
Disentangling Diagenesis From the Rock Record: An Example From the Permo-Triassic Wordie Creek Formation, East Greenland ... |
title_fullStr |
Disentangling Diagenesis From the Rock Record: An Example From the Permo-Triassic Wordie Creek Formation, East Greenland ... |
title_full_unstemmed |
Disentangling Diagenesis From the Rock Record: An Example From the Permo-Triassic Wordie Creek Formation, East Greenland ... |
title_sort |
disentangling diagenesis from the rock record: an example from the permo-triassic wordie creek formation, east greenland ... |
publisher |
American Geophysical Union (AGU) |
publishDate |
2018 |
url |
https://dx.doi.org/10.17863/cam.20956 https://www.repository.cam.ac.uk/handle/1810/273880 |
long_lat |
ENVELOPE(-67.500,-67.500,-69.167,-69.167) |
geographic |
Greenland Wordie |
geographic_facet |
Greenland Wordie |
genre |
East Greenland Greenland |
genre_facet |
East Greenland Greenland |
op_doi |
https://doi.org/10.17863/cam.20956 |
_version_ |
1789965177970491392 |