Architecture of growth basins in a tidally influenced, prodelta to delta-front setting: The Triassic succession of Kvalpynten, East Svalbard
World-class examples of fault-controlled growth basins with associated syn-kinematic sedimentary fill are developed in Upper Triassic prodelta to delta-front deposits exposed at Kvalpynten, SW Edgeøya in East Svalbard. They are interpreted to have interacted with north-westerly progradation of a reg...
Published in: | Basin Research |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2020
|
Subjects: | |
Online Access: | http://hdl.handle.net/11588/820185 https://doi.org/10.1111/bre.12410 |
id |
ftunivnapoliiris:oai:www.iris.unina.it:11588/820185 |
---|---|
record_format |
openpolar |
spelling |
ftunivnapoliiris:oai:www.iris.unina.it:11588/820185 2024-04-14T08:11:04+00:00 Architecture of growth basins in a tidally influenced, prodelta to delta-front setting: The Triassic succession of Kvalpynten, East Svalbard Smyrak-Sikora A. Osmundsen P. T. Braathen A. Ogata K. Anell I. Mulrooney M. J. Zuchuat V. Smyrak-Sikora, A. Osmundsen, P. T. Braathen, A. Ogata, K. Anell, I. Mulrooney, M. J. Zuchuat, V. 2020 http://hdl.handle.net/11588/820185 https://doi.org/10.1111/bre.12410 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000492288000001 volume:32 issue:5 firstpage:959 lastpage:988 numberofpages:30 journal:BASIN RESEARCH http://hdl.handle.net/11588/820185 doi:10.1111/bre.12410 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85074280396 info:eu-repo/semantics/article 2020 ftunivnapoliiris https://doi.org/10.1111/bre.12410 2024-03-21T19:53:38Z World-class examples of fault-controlled growth basins with associated syn-kinematic sedimentary fill are developed in Upper Triassic prodelta to delta-front deposits exposed at Kvalpynten, SW Edgeøya in East Svalbard. They are interpreted to have interacted with north-westerly progradation of a regional delta system. The syn-kinematic successions consist of 4 to 5 coarsening-upward units spanning from offshore mudstones to subtidal heterolithic bars and compound tidal dunes, which were blanketed by regional, post-kinematic sandstone sheets deposited as laterally continuous, subaqueous tidal dune fields. The rate of growth faulting is reflected in the distribution of accommodation, which governs sedimentary architecture and stacking patterns within the coarsening-upward units. Fully compartmentalized basins (12, 200–800 m wide and c. 150 m high grabens and half grabens) are characterized by syn-kinematic sedimentary infill. These grabens and half-grabens are separated by 60–150 m high horsts composed of pro-delta to distal delta-front mudstones. Grabens host tabular tidal dunes (sandwaves), whereas half-grabens bound by listric faults (mainly south-dipping) consist of wedge-shaped, rotated strata with erosive boundaries proximal to the uplifted fault block crests. Heterolithic tidal bars (sand ridges) occur in narrow half-grabens, showing migration oblique to the faults, up the dipslope. Structureless sandstone wedges and localized subaqueous slumps that formed in response to collapse of the block crests were only documented in half-grabens. Late-kinematic deposition during the final stages of faulting occurred in partly compartmentalized basins, filled with variably thick sets of continuous sandstone belts (compound tidal dunes). Article in Journal/Newspaper Edgeøya Svalbard IRIS Università degli Studi di Napoli Federico II Svalbard Edgeøya ENVELOPE(22.500,22.500,77.750,77.750) Kvalpynten ENVELOPE(20.897,20.897,77.440,77.440) Basin Research 32 5 949 978 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Napoli Federico II |
op_collection_id |
ftunivnapoliiris |
language |
English |
description |
World-class examples of fault-controlled growth basins with associated syn-kinematic sedimentary fill are developed in Upper Triassic prodelta to delta-front deposits exposed at Kvalpynten, SW Edgeøya in East Svalbard. They are interpreted to have interacted with north-westerly progradation of a regional delta system. The syn-kinematic successions consist of 4 to 5 coarsening-upward units spanning from offshore mudstones to subtidal heterolithic bars and compound tidal dunes, which were blanketed by regional, post-kinematic sandstone sheets deposited as laterally continuous, subaqueous tidal dune fields. The rate of growth faulting is reflected in the distribution of accommodation, which governs sedimentary architecture and stacking patterns within the coarsening-upward units. Fully compartmentalized basins (12, 200–800 m wide and c. 150 m high grabens and half grabens) are characterized by syn-kinematic sedimentary infill. These grabens and half-grabens are separated by 60–150 m high horsts composed of pro-delta to distal delta-front mudstones. Grabens host tabular tidal dunes (sandwaves), whereas half-grabens bound by listric faults (mainly south-dipping) consist of wedge-shaped, rotated strata with erosive boundaries proximal to the uplifted fault block crests. Heterolithic tidal bars (sand ridges) occur in narrow half-grabens, showing migration oblique to the faults, up the dipslope. Structureless sandstone wedges and localized subaqueous slumps that formed in response to collapse of the block crests were only documented in half-grabens. Late-kinematic deposition during the final stages of faulting occurred in partly compartmentalized basins, filled with variably thick sets of continuous sandstone belts (compound tidal dunes). |
author2 |
Smyrak-Sikora, A. Osmundsen, P. T. Braathen, A. Ogata, K. Anell, I. Mulrooney, M. J. Zuchuat, V. |
format |
Article in Journal/Newspaper |
author |
Smyrak-Sikora A. Osmundsen P. T. Braathen A. Ogata K. Anell I. Mulrooney M. J. Zuchuat V. |
spellingShingle |
Smyrak-Sikora A. Osmundsen P. T. Braathen A. Ogata K. Anell I. Mulrooney M. J. Zuchuat V. Architecture of growth basins in a tidally influenced, prodelta to delta-front setting: The Triassic succession of Kvalpynten, East Svalbard |
author_facet |
Smyrak-Sikora A. Osmundsen P. T. Braathen A. Ogata K. Anell I. Mulrooney M. J. Zuchuat V. |
author_sort |
Smyrak-Sikora A. |
title |
Architecture of growth basins in a tidally influenced, prodelta to delta-front setting: The Triassic succession of Kvalpynten, East Svalbard |
title_short |
Architecture of growth basins in a tidally influenced, prodelta to delta-front setting: The Triassic succession of Kvalpynten, East Svalbard |
title_full |
Architecture of growth basins in a tidally influenced, prodelta to delta-front setting: The Triassic succession of Kvalpynten, East Svalbard |
title_fullStr |
Architecture of growth basins in a tidally influenced, prodelta to delta-front setting: The Triassic succession of Kvalpynten, East Svalbard |
title_full_unstemmed |
Architecture of growth basins in a tidally influenced, prodelta to delta-front setting: The Triassic succession of Kvalpynten, East Svalbard |
title_sort |
architecture of growth basins in a tidally influenced, prodelta to delta-front setting: the triassic succession of kvalpynten, east svalbard |
publishDate |
2020 |
url |
http://hdl.handle.net/11588/820185 https://doi.org/10.1111/bre.12410 |
long_lat |
ENVELOPE(22.500,22.500,77.750,77.750) ENVELOPE(20.897,20.897,77.440,77.440) |
geographic |
Svalbard Edgeøya Kvalpynten |
geographic_facet |
Svalbard Edgeøya Kvalpynten |
genre |
Edgeøya Svalbard |
genre_facet |
Edgeøya Svalbard |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000492288000001 volume:32 issue:5 firstpage:959 lastpage:988 numberofpages:30 journal:BASIN RESEARCH http://hdl.handle.net/11588/820185 doi:10.1111/bre.12410 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85074280396 |
op_doi |
https://doi.org/10.1111/bre.12410 |
container_title |
Basin Research |
container_volume |
32 |
container_issue |
5 |
container_start_page |
949 |
op_container_end_page |
978 |
_version_ |
1796308721152819200 |