Sedimentology and depositional environment of the middle Cambrian Manuels River Formation in the type locality at Conception Bay South, Newfoundland, Canada
A detailed bed-by-bed study of fossiliferous, marine, grey to black shales of the middle Cambrian (Drumian, Cambrian Series 3) Manuels River Formation along its type locality in Newfoundland, Canada, was carried out and provides insight into the sedimentology, depositional environment, palaeogeograp...
Main Author: | |
---|---|
Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
Published: |
2016
|
Subjects: | |
Online Access: | https://archiv.ub.uni-heidelberg.de/volltextserver/20645/ https://archiv.ub.uni-heidelberg.de/volltextserver/20645/1/PhD_Austermann_2016_final_PDFA.pdf https://doi.org/10.11588/heidok.00020645 https://nbn-resolving.org/urn:nbn:de:bsz:16-heidok-206458 |
id |
ftunivheidelb:oai:archiv.ub.uni-heidelberg.de:20645 |
---|---|
record_format |
openpolar |
spelling |
ftunivheidelb:oai:archiv.ub.uni-heidelberg.de:20645 2023-11-05T03:43:33+01:00 Sedimentology and depositional environment of the middle Cambrian Manuels River Formation in the type locality at Conception Bay South, Newfoundland, Canada Austermann, Gregor 2016 application/pdf https://archiv.ub.uni-heidelberg.de/volltextserver/20645/ https://archiv.ub.uni-heidelberg.de/volltextserver/20645/1/PhD_Austermann_2016_final_PDFA.pdf https://doi.org/10.11588/heidok.00020645 https://nbn-resolving.org/urn:nbn:de:bsz:16-heidok-206458 eng eng https://archiv.ub.uni-heidelberg.de/volltextserver/20645/1/PhD_Austermann_2016_final_PDFA.pdf doi:10.11588/heidok.00020645 urn:nbn:de:bsz:16-heidok-206458 Austermann, Gregor (2016) Sedimentology and depositional environment of the middle Cambrian Manuels River Formation in the type locality at Conception Bay South, Newfoundland, Canada. [Dissertation] info:eu-repo/semantics/openAccess http://archiv.ub.uni-heidelberg.de/volltextserver/help/license_urhg.html 550 550 Earth sciences Dissertation info:eu-repo/semantics/doctoralThesis NonPeerReviewed 2016 ftunivheidelb https://doi.org/10.11588/heidok.00020645 2023-10-10T12:07:55Z A detailed bed-by-bed study of fossiliferous, marine, grey to black shales of the middle Cambrian (Drumian, Cambrian Series 3) Manuels River Formation along its type locality in Newfoundland, Canada, was carried out and provides insight into the sedimentology, depositional environment, palaeogeography and climatology of the area. The formation was deposited on the microcontinent Avalonia, the largest terrane of the peri-Gondwanan realm situated in temperate latitudes. The partly organic-rich (up to 3.36 % TOC) shales of the succession were deposited mainly conformably under dysoxic conditions. Deposition was controlled by two shallowing trends and occurred below, near and above mean storm- wave base. The contact of the top of the rst shallowing-upward trend in the succession is conformably, whereas the second shallowing-upward trend is truncated by an erosional unconformity, forming the top of the formation. An average sedimentation rate of c. 3.8 m/ Ma is estimated. The clay-mineral composition and illite crystallinity suggest a subsidence of approximately 5.7–6.3 km and a burial temperature of c. 280 °C. The low chlorite/kaolinite ratios indicate a mainly warm semi-humid climate setting at 35°–65° S, with sudden changes to a semi-arid setting. The subsidence, sedimentation rate and depositional environment suggest an Early Ordovician Avalonia-Gondwana separation. Doctoral or Postdoctoral Thesis Newfoundland Heidelberg University: HeiDok |
institution |
Open Polar |
collection |
Heidelberg University: HeiDok |
op_collection_id |
ftunivheidelb |
language |
English |
topic |
550 550 Earth sciences |
spellingShingle |
550 550 Earth sciences Austermann, Gregor Sedimentology and depositional environment of the middle Cambrian Manuels River Formation in the type locality at Conception Bay South, Newfoundland, Canada |
topic_facet |
550 550 Earth sciences |
description |
A detailed bed-by-bed study of fossiliferous, marine, grey to black shales of the middle Cambrian (Drumian, Cambrian Series 3) Manuels River Formation along its type locality in Newfoundland, Canada, was carried out and provides insight into the sedimentology, depositional environment, palaeogeography and climatology of the area. The formation was deposited on the microcontinent Avalonia, the largest terrane of the peri-Gondwanan realm situated in temperate latitudes. The partly organic-rich (up to 3.36 % TOC) shales of the succession were deposited mainly conformably under dysoxic conditions. Deposition was controlled by two shallowing trends and occurred below, near and above mean storm- wave base. The contact of the top of the rst shallowing-upward trend in the succession is conformably, whereas the second shallowing-upward trend is truncated by an erosional unconformity, forming the top of the formation. An average sedimentation rate of c. 3.8 m/ Ma is estimated. The clay-mineral composition and illite crystallinity suggest a subsidence of approximately 5.7–6.3 km and a burial temperature of c. 280 °C. The low chlorite/kaolinite ratios indicate a mainly warm semi-humid climate setting at 35°–65° S, with sudden changes to a semi-arid setting. The subsidence, sedimentation rate and depositional environment suggest an Early Ordovician Avalonia-Gondwana separation. |
format |
Doctoral or Postdoctoral Thesis |
author |
Austermann, Gregor |
author_facet |
Austermann, Gregor |
author_sort |
Austermann, Gregor |
title |
Sedimentology and depositional environment of the middle Cambrian Manuels River Formation in the type locality at Conception Bay South, Newfoundland, Canada |
title_short |
Sedimentology and depositional environment of the middle Cambrian Manuels River Formation in the type locality at Conception Bay South, Newfoundland, Canada |
title_full |
Sedimentology and depositional environment of the middle Cambrian Manuels River Formation in the type locality at Conception Bay South, Newfoundland, Canada |
title_fullStr |
Sedimentology and depositional environment of the middle Cambrian Manuels River Formation in the type locality at Conception Bay South, Newfoundland, Canada |
title_full_unstemmed |
Sedimentology and depositional environment of the middle Cambrian Manuels River Formation in the type locality at Conception Bay South, Newfoundland, Canada |
title_sort |
sedimentology and depositional environment of the middle cambrian manuels river formation in the type locality at conception bay south, newfoundland, canada |
publishDate |
2016 |
url |
https://archiv.ub.uni-heidelberg.de/volltextserver/20645/ https://archiv.ub.uni-heidelberg.de/volltextserver/20645/1/PhD_Austermann_2016_final_PDFA.pdf https://doi.org/10.11588/heidok.00020645 https://nbn-resolving.org/urn:nbn:de:bsz:16-heidok-206458 |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_relation |
https://archiv.ub.uni-heidelberg.de/volltextserver/20645/1/PhD_Austermann_2016_final_PDFA.pdf doi:10.11588/heidok.00020645 urn:nbn:de:bsz:16-heidok-206458 Austermann, Gregor (2016) Sedimentology and depositional environment of the middle Cambrian Manuels River Formation in the type locality at Conception Bay South, Newfoundland, Canada. [Dissertation] |
op_rights |
info:eu-repo/semantics/openAccess http://archiv.ub.uni-heidelberg.de/volltextserver/help/license_urhg.html |
op_doi |
https://doi.org/10.11588/heidok.00020645 |
_version_ |
1781702076575776768 |