Sedimentology and palaeontology of the Withycombe Farm Borehole, Oxfordshire, England
The pre-trilobitic lower Cambrian of the Withycombe Formation is a 194 m thick siliciclastic succession dominated by interbedded offshore red to purple and green pyritic mudstone with minor sandstone. The mudstone contains a hyolith-dominated small shelly fauna including: orthothecid hyoliths, hyoli...
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Memorial University of Newfoundland
2020
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ftdatacite:10.48336/atj0-kh48 2023-05-15T17:22:24+02:00 Sedimentology and palaeontology of the Withycombe Farm Borehole, Oxfordshire, England Power, Kendra Morgan 2020 https://dx.doi.org/10.48336/atj0-kh48 https://research.library.mun.ca/14481/ en eng Memorial University of Newfoundland Text article-journal ScholarlyArticle 2020 ftdatacite https://doi.org/10.48336/atj0-kh48 2021-11-05T12:55:41Z The pre-trilobitic lower Cambrian of the Withycombe Formation is a 194 m thick siliciclastic succession dominated by interbedded offshore red to purple and green pyritic mudstone with minor sandstone. The mudstone contains a hyolith-dominated small shelly fauna including: orthothecid hyoliths, hyolithid hyoliths, the rostroconch Watsonella crosbyi, early brachiopods, the foraminiferan Platysolenites antiquissimus, the coiled gastropod-like Aldanella attleborensis, halkieriids, gastropods and a low diversity ichnofauna including evidence of predation by a vagile infaunal predator. The assemblage contains a number of important index fossils (Watsonella, Platysolenites, Aldanella and the trace fossil Teichichnus) that enable correlation of strata around the base of Cambrian Stage 2 from Avalonia to Baltica, as well as the assessment of the stratigraphy within the context of the lower Cambrian stratigraphic standards of southeastern Newfoundland. The pyritized nature of the assemblage has enabled the study of some of the biota using micro-CT, augmented with petrographic studies, revealing pyritized microbial filaments of probable giant sulfur bacteria. We aim to produce the first complete description of the core and the abundant small pyritized fossils preserved in it, and develop a taphonomic model for the pyritization of the “small” shelly fossils. Text Newfoundland DataCite Metadata Store (German National Library of Science and Technology) |
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English |
description |
The pre-trilobitic lower Cambrian of the Withycombe Formation is a 194 m thick siliciclastic succession dominated by interbedded offshore red to purple and green pyritic mudstone with minor sandstone. The mudstone contains a hyolith-dominated small shelly fauna including: orthothecid hyoliths, hyolithid hyoliths, the rostroconch Watsonella crosbyi, early brachiopods, the foraminiferan Platysolenites antiquissimus, the coiled gastropod-like Aldanella attleborensis, halkieriids, gastropods and a low diversity ichnofauna including evidence of predation by a vagile infaunal predator. The assemblage contains a number of important index fossils (Watsonella, Platysolenites, Aldanella and the trace fossil Teichichnus) that enable correlation of strata around the base of Cambrian Stage 2 from Avalonia to Baltica, as well as the assessment of the stratigraphy within the context of the lower Cambrian stratigraphic standards of southeastern Newfoundland. The pyritized nature of the assemblage has enabled the study of some of the biota using micro-CT, augmented with petrographic studies, revealing pyritized microbial filaments of probable giant sulfur bacteria. We aim to produce the first complete description of the core and the abundant small pyritized fossils preserved in it, and develop a taphonomic model for the pyritization of the “small” shelly fossils. |
format |
Text |
author |
Power, Kendra Morgan |
spellingShingle |
Power, Kendra Morgan Sedimentology and palaeontology of the Withycombe Farm Borehole, Oxfordshire, England |
author_facet |
Power, Kendra Morgan |
author_sort |
Power, Kendra Morgan |
title |
Sedimentology and palaeontology of the Withycombe Farm Borehole, Oxfordshire, England |
title_short |
Sedimentology and palaeontology of the Withycombe Farm Borehole, Oxfordshire, England |
title_full |
Sedimentology and palaeontology of the Withycombe Farm Borehole, Oxfordshire, England |
title_fullStr |
Sedimentology and palaeontology of the Withycombe Farm Borehole, Oxfordshire, England |
title_full_unstemmed |
Sedimentology and palaeontology of the Withycombe Farm Borehole, Oxfordshire, England |
title_sort |
sedimentology and palaeontology of the withycombe farm borehole, oxfordshire, england |
publisher |
Memorial University of Newfoundland |
publishDate |
2020 |
url |
https://dx.doi.org/10.48336/atj0-kh48 https://research.library.mun.ca/14481/ |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_doi |
https://doi.org/10.48336/atj0-kh48 |
_version_ |
1766109034976378880 |