Sedimentology and petrography of the Svenskøya Formation on Hopen, Svalbard: an analogue to sandstone reservoirs in the Realgrunnen Subgroup
On the island of Hopen, in the Svalbard Archipelago, the Svenskøya Formation is a succession 35 m in thickness, consisting primarily of sandstone beds and forming the youngest strata exposed on the island. We present a sedimentological and petrographic study of the formation and compare the unit wit...
Published in: | Polar Research |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Norsk Polarinstitutt
2019
|
Subjects: | |
Online Access: | http://hdl.handle.net/11250/2640950 https://doi.org/10.33265/polar.v38.3523 |
id |
ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2640950 |
---|---|
record_format |
openpolar |
spelling |
ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2640950 2023-05-15T14:24:08+02:00 Sedimentology and petrography of the Svenskøya Formation on Hopen, Svalbard: an analogue to sandstone reservoirs in the Realgrunnen Subgroup Lord, Gareth Steven Mørk, Mai Britt Engeness Mørk, Atle Olaussen, Snorre 2019 http://hdl.handle.net/11250/2640950 https://doi.org/10.33265/polar.v38.3523 eng eng Norsk Polarinstitutt Norges forskningsråd: Arctic Field Grant Andre: Oljedirektoratet Egen institusjon: UiO - Triassic North Norges forskningsråd: 234152 Polar Research. 2019, 38 . urn:issn:0800-0395 http://hdl.handle.net/11250/2640950 https://doi.org/10.33265/polar.v38.3523 cristin:1731825 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no CC-BY 24 38 Polar Research Journal article Peer reviewed 2019 ftntnutrondheimi https://doi.org/10.33265/polar.v38.3523 2020-02-12T23:32:29Z On the island of Hopen, in the Svalbard Archipelago, the Svenskøya Formation is a succession 35 m in thickness, consisting primarily of sandstone beds and forming the youngest strata exposed on the island. We present a sedimentological and petrographic study of the formation and compare the unit with its exposures on Wilhelmøya and in Kong Karls Land, Svalbard. We also compare the onshore characteristics of the Svenskøya Formation with those of the Tubåen Formation, its time-equivalent unit in the Sentralbanken area of the northern Barents Sea. On Hopen, the Svenskøya Formation is interpreted as representing coarse clastic sediments deposited in a fluvial to tidal setting, prior to being overlain by a thin interval composed of tidal channel and marine shale deposits. The unit sits atop the regional “Rhaetian Unconformity” and represents sediments deposited during a regressive system that terminates at a flooding surface representing a local transgression of the palaeo-coastline. Petrographic studies show the formation as being arkosic, both on Hopen and in the Sentralbanken area. The reservoir quality of sandstone samples recovered from Hopen is somewhat lower compared to sandstone reservoirs in the Sentralbanken area. We attribute this to greater effects of diagenesis in the Hopen area, which caused increased compaction, mineral dissolution and extensive precipitation of pore-filling clay minerals. publishedVersion © 2019 G.S. Lord et al. This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 Unported License. Authors retain copyright of their work, with first publication rights granted to the Norwegian Polar Institute. Article in Journal/Newspaper Arctic Barents Sea Hopen Kong Karls Land Norwegian Polar Institute Polar Research Sentralbanken Svalbard Svenskøya Wilhelmøya Hopen NTNU Open Archive (Norwegian University of Science and Technology) Svalbard Barents Sea Svalbard Archipelago Hopen ENVELOPE(9.279,9.279,63.379,63.379) Kong Karls Land ENVELOPE(28.000,28.000,78.833,78.833) Tubåen ENVELOPE(23.416,23.416,70.987,70.987) Wilhelmøya ENVELOPE(20.418,20.418,79.062,79.062) Sentralbanken ENVELOPE(34.000,34.000,74.000,74.000) Polar Research 38 0 |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
On the island of Hopen, in the Svalbard Archipelago, the Svenskøya Formation is a succession 35 m in thickness, consisting primarily of sandstone beds and forming the youngest strata exposed on the island. We present a sedimentological and petrographic study of the formation and compare the unit with its exposures on Wilhelmøya and in Kong Karls Land, Svalbard. We also compare the onshore characteristics of the Svenskøya Formation with those of the Tubåen Formation, its time-equivalent unit in the Sentralbanken area of the northern Barents Sea. On Hopen, the Svenskøya Formation is interpreted as representing coarse clastic sediments deposited in a fluvial to tidal setting, prior to being overlain by a thin interval composed of tidal channel and marine shale deposits. The unit sits atop the regional “Rhaetian Unconformity” and represents sediments deposited during a regressive system that terminates at a flooding surface representing a local transgression of the palaeo-coastline. Petrographic studies show the formation as being arkosic, both on Hopen and in the Sentralbanken area. The reservoir quality of sandstone samples recovered from Hopen is somewhat lower compared to sandstone reservoirs in the Sentralbanken area. We attribute this to greater effects of diagenesis in the Hopen area, which caused increased compaction, mineral dissolution and extensive precipitation of pore-filling clay minerals. publishedVersion © 2019 G.S. Lord et al. This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 Unported License. Authors retain copyright of their work, with first publication rights granted to the Norwegian Polar Institute. |
format |
Article in Journal/Newspaper |
author |
Lord, Gareth Steven Mørk, Mai Britt Engeness Mørk, Atle Olaussen, Snorre |
spellingShingle |
Lord, Gareth Steven Mørk, Mai Britt Engeness Mørk, Atle Olaussen, Snorre Sedimentology and petrography of the Svenskøya Formation on Hopen, Svalbard: an analogue to sandstone reservoirs in the Realgrunnen Subgroup |
author_facet |
Lord, Gareth Steven Mørk, Mai Britt Engeness Mørk, Atle Olaussen, Snorre |
author_sort |
Lord, Gareth Steven |
title |
Sedimentology and petrography of the Svenskøya Formation on Hopen, Svalbard: an analogue to sandstone reservoirs in the Realgrunnen Subgroup |
title_short |
Sedimentology and petrography of the Svenskøya Formation on Hopen, Svalbard: an analogue to sandstone reservoirs in the Realgrunnen Subgroup |
title_full |
Sedimentology and petrography of the Svenskøya Formation on Hopen, Svalbard: an analogue to sandstone reservoirs in the Realgrunnen Subgroup |
title_fullStr |
Sedimentology and petrography of the Svenskøya Formation on Hopen, Svalbard: an analogue to sandstone reservoirs in the Realgrunnen Subgroup |
title_full_unstemmed |
Sedimentology and petrography of the Svenskøya Formation on Hopen, Svalbard: an analogue to sandstone reservoirs in the Realgrunnen Subgroup |
title_sort |
sedimentology and petrography of the svenskøya formation on hopen, svalbard: an analogue to sandstone reservoirs in the realgrunnen subgroup |
publisher |
Norsk Polarinstitutt |
publishDate |
2019 |
url |
http://hdl.handle.net/11250/2640950 https://doi.org/10.33265/polar.v38.3523 |
long_lat |
ENVELOPE(9.279,9.279,63.379,63.379) ENVELOPE(28.000,28.000,78.833,78.833) ENVELOPE(23.416,23.416,70.987,70.987) ENVELOPE(20.418,20.418,79.062,79.062) ENVELOPE(34.000,34.000,74.000,74.000) |
geographic |
Svalbard Barents Sea Svalbard Archipelago Hopen Kong Karls Land Tubåen Wilhelmøya Sentralbanken |
geographic_facet |
Svalbard Barents Sea Svalbard Archipelago Hopen Kong Karls Land Tubåen Wilhelmøya Sentralbanken |
genre |
Arctic Barents Sea Hopen Kong Karls Land Norwegian Polar Institute Polar Research Sentralbanken Svalbard Svenskøya Wilhelmøya Hopen |
genre_facet |
Arctic Barents Sea Hopen Kong Karls Land Norwegian Polar Institute Polar Research Sentralbanken Svalbard Svenskøya Wilhelmøya Hopen |
op_source |
24 38 Polar Research |
op_relation |
Norges forskningsråd: Arctic Field Grant Andre: Oljedirektoratet Egen institusjon: UiO - Triassic North Norges forskningsråd: 234152 Polar Research. 2019, 38 . urn:issn:0800-0395 http://hdl.handle.net/11250/2640950 https://doi.org/10.33265/polar.v38.3523 cristin:1731825 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.33265/polar.v38.3523 |
container_title |
Polar Research |
container_volume |
38 |
container_issue |
0 |
_version_ |
1766296600816123904 |