Maastrichtian-Paleocene foreland-basin stratigraphies, western Canada: a reciprocal sequence architecture
Palynological and magnetostratigraphic chronostratigraphic correlations of lower Maastrichtian to Paleocene strata along an east-west Western Canada Basin transect allow for the recognition of a reciprocal sequence architecture in nonmarine strata. Reference sections include three Canadian Continent...
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crcansciencepubl:10.1139/e98-018 2024-05-19T07:38:36+00:00 Maastrichtian-Paleocene foreland-basin stratigraphies, western Canada: a reciprocal sequence architecture Catuneanu, Octavian Sweet, Arthur R 1999 http://dx.doi.org/10.1139/e98-018 http://www.nrcresearchpress.com/doi/pdf/10.1139/e98-018 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 36, issue 5, page 685-703 ISSN 0008-4077 1480-3313 journal-article 1999 crcansciencepubl https://doi.org/10.1139/e98-018 2024-04-25T06:52:01Z Palynological and magnetostratigraphic chronostratigraphic correlations of lower Maastrichtian to Paleocene strata along an east-west Western Canada Basin transect allow for the recognition of a reciprocal sequence architecture in nonmarine strata. Reference sections include three Canadian Continental Drilling Program Cretaceous-Tertiary Boundary Project core holes and outcrops in Alberta, southern Saskatchewan, and north-central Montana. The spatial and temporal position of the third-order sequences provides evidence for the correlation of proximal sector regional disconformities and sedimentary wedges with distal sector sedimentary wedges and regional disconformities, respectively. The boundary between the two sectors is represented by a hingeline, which separates the foreland-basin "syncline" from the "peripheral bulge." The stratigraphies defined by reciprocal third-order sequences are complicated by fourth-order boundaries, developed within proximal sedimentary wedges and with no correlative distal strata. These results support tectonic control on foreland-basin sedimentation. A model for interpreting the various types of sequences in terms of foreland-basin evolution, vertical tectonics, and orogenic cycles is provided. It is argued that nonmarine sequence boundaries (times of maximum uplift in the foreland region) may be expressed as disconformities, incised valleys, top of mature paleosol levels, or base of fluvial channels, whereas nonmarine equivalents of marine maximum flooding surfaces (times of maximum basinal subsidence) may be indicated by extensive coal seams and (or) lacustrine sediments. Article in Journal/Newspaper canada basin Canadian Science Publishing Canadian Journal of Earth Sciences 36 5 685 703 |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Palynological and magnetostratigraphic chronostratigraphic correlations of lower Maastrichtian to Paleocene strata along an east-west Western Canada Basin transect allow for the recognition of a reciprocal sequence architecture in nonmarine strata. Reference sections include three Canadian Continental Drilling Program Cretaceous-Tertiary Boundary Project core holes and outcrops in Alberta, southern Saskatchewan, and north-central Montana. The spatial and temporal position of the third-order sequences provides evidence for the correlation of proximal sector regional disconformities and sedimentary wedges with distal sector sedimentary wedges and regional disconformities, respectively. The boundary between the two sectors is represented by a hingeline, which separates the foreland-basin "syncline" from the "peripheral bulge." The stratigraphies defined by reciprocal third-order sequences are complicated by fourth-order boundaries, developed within proximal sedimentary wedges and with no correlative distal strata. These results support tectonic control on foreland-basin sedimentation. A model for interpreting the various types of sequences in terms of foreland-basin evolution, vertical tectonics, and orogenic cycles is provided. It is argued that nonmarine sequence boundaries (times of maximum uplift in the foreland region) may be expressed as disconformities, incised valleys, top of mature paleosol levels, or base of fluvial channels, whereas nonmarine equivalents of marine maximum flooding surfaces (times of maximum basinal subsidence) may be indicated by extensive coal seams and (or) lacustrine sediments. |
format |
Article in Journal/Newspaper |
author |
Catuneanu, Octavian Sweet, Arthur R |
spellingShingle |
Catuneanu, Octavian Sweet, Arthur R Maastrichtian-Paleocene foreland-basin stratigraphies, western Canada: a reciprocal sequence architecture |
author_facet |
Catuneanu, Octavian Sweet, Arthur R |
author_sort |
Catuneanu, Octavian |
title |
Maastrichtian-Paleocene foreland-basin stratigraphies, western Canada: a reciprocal sequence architecture |
title_short |
Maastrichtian-Paleocene foreland-basin stratigraphies, western Canada: a reciprocal sequence architecture |
title_full |
Maastrichtian-Paleocene foreland-basin stratigraphies, western Canada: a reciprocal sequence architecture |
title_fullStr |
Maastrichtian-Paleocene foreland-basin stratigraphies, western Canada: a reciprocal sequence architecture |
title_full_unstemmed |
Maastrichtian-Paleocene foreland-basin stratigraphies, western Canada: a reciprocal sequence architecture |
title_sort |
maastrichtian-paleocene foreland-basin stratigraphies, western canada: a reciprocal sequence architecture |
publisher |
Canadian Science Publishing |
publishDate |
1999 |
url |
http://dx.doi.org/10.1139/e98-018 http://www.nrcresearchpress.com/doi/pdf/10.1139/e98-018 |
genre |
canada basin |
genre_facet |
canada basin |
op_source |
Canadian Journal of Earth Sciences volume 36, issue 5, page 685-703 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e98-018 |
container_title |
Canadian Journal of Earth Sciences |
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36 |
container_issue |
5 |
container_start_page |
685 |
op_container_end_page |
703 |
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1799478068061929472 |