Proximal to distal grain‐size distribution of basin‐floor lobes: A study from the Battfjellet Formation, Central Tertiary Basin, Svalbard
Abstract The grain‐size distribution of sediment particles is an important aspect of the architecture of submarine fans and lobes. It governs depositional sand quality and reflects distribution of particulate organic carbon and pollutants. Documenting the grain‐size distribution of these deep‐marine...
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Wiley
2022
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Online Access: | https://doi.org/10.1002/dep2.167 https://doaj.org/article/4f0e4a2ee15d4eaf946c2c6c73995b3f |
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ftdoajarticles:oai:doaj.org/article:4f0e4a2ee15d4eaf946c2c6c73995b3f 2023-05-15T18:29:52+02:00 Proximal to distal grain‐size distribution of basin‐floor lobes: A study from the Battfjellet Formation, Central Tertiary Basin, Svalbard Yvonne T. Spychala Thymen A. B. Ramaaker Joris T. Eggenhuisen Sten‐Andreas Grundvåg Florian Pohl Sara Wróblewska 2022-06-01T00:00:00Z https://doi.org/10.1002/dep2.167 https://doaj.org/article/4f0e4a2ee15d4eaf946c2c6c73995b3f EN eng Wiley https://doi.org/10.1002/dep2.167 https://doaj.org/toc/2055-4877 2055-4877 doi:10.1002/dep2.167 https://doaj.org/article/4f0e4a2ee15d4eaf946c2c6c73995b3f The Depositional Record, Vol 8, Iss 2, Pp 436-456 (2022) flow processes grain‐size counting palaeo‐reconstruction thin sections turbidites Geology QE1-996.5 article 2022 ftdoajarticles https://doi.org/10.1002/dep2.167 2022-12-30T23:13:03Z Abstract The grain‐size distribution of sediment particles is an important aspect of the architecture of submarine fans and lobes. It governs depositional sand quality and reflects distribution of particulate organic carbon and pollutants. Documenting the grain‐size distribution of these deep‐marine sedimentary bodies can also offer us an insight into the flows that deposited them. Submarine lobes are commonly assumed to linearly fine from an apex, meaning there should be a proportional relationship between grain size and distance from the lobe apex. However, not much detailed quantitative work has been done to test this hypothesis. Exposure of a 5 km long dip‐section of basin‐floor lobes in Clinoform 12, Battfjellet Formation, Spitsbergen, enable the study of basinward grain‐size evolution in lobe deposits. Furthermore, the dataset allows testing if there are any documentable grain‐size differences between lobe sub‐environments. For this purpose, the palaeogeography of Clinoform 12 was reconstructed and the youngest lobe, which was exposed in all collected logs, chosen to be evaluated for its grain‐size trends. Photographed thin sections of 66 rock samples were analysed to obtain quantitative grain‐size distributions. The results show that fining of lobe deposits occurs predominantly in the most proximal and most distal parts of the lobe, while the intermediate lobe, which is dominated by lobe off‐axis deposits, is characterised by a relatively consistent grain‐size range. Lobe sub‐environments show statistically distinct grain‐size distributions from lobe axis to lobe fringe. An explanation for these trends is the interplay of capacity and competence‐driven deposition with the grain‐size stratification of the flows. The outcomes of this study help to better understand the proximal to distal evolution of turbidity currents and their depositional patterns. They also provide important insights in reservoir potential of basin‐floor fans at lobe scale. Article in Journal/Newspaper Svalbard Spitsbergen Directory of Open Access Journals: DOAJ Articles Battfjellet ENVELOPE(16.192,16.192,78.063,78.063) Svalbard The Depositional Record 8 2 436 456 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
flow processes grain‐size counting palaeo‐reconstruction thin sections turbidites Geology QE1-996.5 |
spellingShingle |
flow processes grain‐size counting palaeo‐reconstruction thin sections turbidites Geology QE1-996.5 Yvonne T. Spychala Thymen A. B. Ramaaker Joris T. Eggenhuisen Sten‐Andreas Grundvåg Florian Pohl Sara Wróblewska Proximal to distal grain‐size distribution of basin‐floor lobes: A study from the Battfjellet Formation, Central Tertiary Basin, Svalbard |
topic_facet |
flow processes grain‐size counting palaeo‐reconstruction thin sections turbidites Geology QE1-996.5 |
description |
Abstract The grain‐size distribution of sediment particles is an important aspect of the architecture of submarine fans and lobes. It governs depositional sand quality and reflects distribution of particulate organic carbon and pollutants. Documenting the grain‐size distribution of these deep‐marine sedimentary bodies can also offer us an insight into the flows that deposited them. Submarine lobes are commonly assumed to linearly fine from an apex, meaning there should be a proportional relationship between grain size and distance from the lobe apex. However, not much detailed quantitative work has been done to test this hypothesis. Exposure of a 5 km long dip‐section of basin‐floor lobes in Clinoform 12, Battfjellet Formation, Spitsbergen, enable the study of basinward grain‐size evolution in lobe deposits. Furthermore, the dataset allows testing if there are any documentable grain‐size differences between lobe sub‐environments. For this purpose, the palaeogeography of Clinoform 12 was reconstructed and the youngest lobe, which was exposed in all collected logs, chosen to be evaluated for its grain‐size trends. Photographed thin sections of 66 rock samples were analysed to obtain quantitative grain‐size distributions. The results show that fining of lobe deposits occurs predominantly in the most proximal and most distal parts of the lobe, while the intermediate lobe, which is dominated by lobe off‐axis deposits, is characterised by a relatively consistent grain‐size range. Lobe sub‐environments show statistically distinct grain‐size distributions from lobe axis to lobe fringe. An explanation for these trends is the interplay of capacity and competence‐driven deposition with the grain‐size stratification of the flows. The outcomes of this study help to better understand the proximal to distal evolution of turbidity currents and their depositional patterns. They also provide important insights in reservoir potential of basin‐floor fans at lobe scale. |
format |
Article in Journal/Newspaper |
author |
Yvonne T. Spychala Thymen A. B. Ramaaker Joris T. Eggenhuisen Sten‐Andreas Grundvåg Florian Pohl Sara Wróblewska |
author_facet |
Yvonne T. Spychala Thymen A. B. Ramaaker Joris T. Eggenhuisen Sten‐Andreas Grundvåg Florian Pohl Sara Wróblewska |
author_sort |
Yvonne T. Spychala |
title |
Proximal to distal grain‐size distribution of basin‐floor lobes: A study from the Battfjellet Formation, Central Tertiary Basin, Svalbard |
title_short |
Proximal to distal grain‐size distribution of basin‐floor lobes: A study from the Battfjellet Formation, Central Tertiary Basin, Svalbard |
title_full |
Proximal to distal grain‐size distribution of basin‐floor lobes: A study from the Battfjellet Formation, Central Tertiary Basin, Svalbard |
title_fullStr |
Proximal to distal grain‐size distribution of basin‐floor lobes: A study from the Battfjellet Formation, Central Tertiary Basin, Svalbard |
title_full_unstemmed |
Proximal to distal grain‐size distribution of basin‐floor lobes: A study from the Battfjellet Formation, Central Tertiary Basin, Svalbard |
title_sort |
proximal to distal grain‐size distribution of basin‐floor lobes: a study from the battfjellet formation, central tertiary basin, svalbard |
publisher |
Wiley |
publishDate |
2022 |
url |
https://doi.org/10.1002/dep2.167 https://doaj.org/article/4f0e4a2ee15d4eaf946c2c6c73995b3f |
long_lat |
ENVELOPE(16.192,16.192,78.063,78.063) |
geographic |
Battfjellet Svalbard |
geographic_facet |
Battfjellet Svalbard |
genre |
Svalbard Spitsbergen |
genre_facet |
Svalbard Spitsbergen |
op_source |
The Depositional Record, Vol 8, Iss 2, Pp 436-456 (2022) |
op_relation |
https://doi.org/10.1002/dep2.167 https://doaj.org/toc/2055-4877 2055-4877 doi:10.1002/dep2.167 https://doaj.org/article/4f0e4a2ee15d4eaf946c2c6c73995b3f |
op_doi |
https://doi.org/10.1002/dep2.167 |
container_title |
The Depositional Record |
container_volume |
8 |
container_issue |
2 |
container_start_page |
436 |
op_container_end_page |
456 |
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1766213295048491008 |