Palynology from surface sediment samples of the Arctic Ocean
Freshwater chlorophycean algae are characteristic organic-walled microfossils in recent coastal and shelf sediments from the Beaufort, Laptev and Kara seas (Arctic Ocean). The persistent occurrence of the chlorophycean algae Pediastrum spp. and Botryococcus cf. braunii in marine palynomorph assembla...
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2000
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.57869 https://doi.org/10.1594/PANGAEA.57869 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.57869 2023-05-15T14:25:49+02:00 Palynology from surface sediment samples of the Arctic Ocean Matthiessen, Jens MEDIAN LATITUDE: 73.206416 * MEDIAN LONGITUDE: 76.849291 * SOUTH-BOUND LATITUDE: 72.093160 * WEST-BOUND LONGITUDE: 72.662000 * NORTH-BOUND LATITUDE: 74.000667 * EAST-BOUND LONGITUDE: 82.813333 * DATE/TIME START: 1997-09-14T09:59:00 * DATE/TIME END: 1997-09-25T11:18:00 * MINIMUM DEPTH, sediment/rock: 0 m * MAXIMUM DEPTH, sediment/rock: 0 m 2000-03-15 text/tab-separated-values, 93 data points https://doi.pangaea.de/10.1594/PANGAEA.57869 https://doi.org/10.1594/PANGAEA.57869 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.57869 https://doi.org/10.1594/PANGAEA.57869 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Matthiessen, Jens; Kunz-Pirrung, Martina; Mudie, Peta J (2000): Freshwater chlorophycean algae from the Beaufort, Laptev and Kara Seas (Arctic Ocean) as indicators of river runoff. International Journal of Earth Sciences, 89(3), 470-485, https://doi.org/10.1007/s005310000127 Akademik Boris Petrov AWI_Paleo Botryococcus per unit mass BP97 BP97-10 BP97-12 BP97-17 BP97-19 BP97-21 BP97-27 BP97-32 BP97-35 BP97-39 BP97-42 BP97-43 BP97-46 BP97-47 BP97-48 BP97-49 BP97-50 BP97-52 BP97-55 BP97-56 BP97-58 Counting palynology DEPTH sediment/rock Desmidiaceae per unit mass Dinoflagellate cyst per unit mass DIVERSE Elevation of event Event label Kara Sea KaraSea97 Latitude of event Longitude of event MULT Multiple investigations Paleoenvironmental Reconstructions from Marine Sediments @ AWI Pediastrum Pollen per unit sediment mass Sampling gear Siberian River Run-Off SIRRO Dataset 2000 ftpangaea https://doi.org/10.1594/PANGAEA.57869 https://doi.org/10.1007/s005310000127 2023-01-20T07:36:16Z Freshwater chlorophycean algae are characteristic organic-walled microfossils in recent coastal and shelf sediments from the Beaufort, Laptev and Kara seas (Arctic Ocean). The persistent occurrence of the chlorophycean algae Pediastrum spp. and Botryococcus cf. braunii in marine palynomorph assemblages is related to the discharge of freshwater and suspended matter from the large Siberian and North American rivers into the Arctic shelf seas. The distribution patterns of these algae in the marine environments reflect the predominant deposition of riverine sediments and organic matter along the salinity gradient from the outer estuaries and prodeltas to the shelf break. Sedimentary processes overprint the primary distribution of these algae. Resuspension of sediments by waves and bottom currents may transport sediments in the bottom nepheloid layer along the submarine channels to the shelf break. Bottom sediments and microfossils may be incorporated into sea ice during freeze-up in autumn and winter leading to an export from the shelves into the deep sea. The presence of these freshwater algae in sea-ice and bottom sediments in the central Arctic Ocean confirm that transport in sea ice is an important process which leads to a redistribution of shallow water microfossils. Dataset Arctic Arctic Arctic Ocean Kara Sea laptev Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean Kara Sea ENVELOPE(72.662000,82.813333,74.000667,72.093160) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Akademik Boris Petrov AWI_Paleo Botryococcus per unit mass BP97 BP97-10 BP97-12 BP97-17 BP97-19 BP97-21 BP97-27 BP97-32 BP97-35 BP97-39 BP97-42 BP97-43 BP97-46 BP97-47 BP97-48 BP97-49 BP97-50 BP97-52 BP97-55 BP97-56 BP97-58 Counting palynology DEPTH sediment/rock Desmidiaceae per unit mass Dinoflagellate cyst per unit mass DIVERSE Elevation of event Event label Kara Sea KaraSea97 Latitude of event Longitude of event MULT Multiple investigations Paleoenvironmental Reconstructions from Marine Sediments @ AWI Pediastrum Pollen per unit sediment mass Sampling gear Siberian River Run-Off SIRRO |
spellingShingle |
Akademik Boris Petrov AWI_Paleo Botryococcus per unit mass BP97 BP97-10 BP97-12 BP97-17 BP97-19 BP97-21 BP97-27 BP97-32 BP97-35 BP97-39 BP97-42 BP97-43 BP97-46 BP97-47 BP97-48 BP97-49 BP97-50 BP97-52 BP97-55 BP97-56 BP97-58 Counting palynology DEPTH sediment/rock Desmidiaceae per unit mass Dinoflagellate cyst per unit mass DIVERSE Elevation of event Event label Kara Sea KaraSea97 Latitude of event Longitude of event MULT Multiple investigations Paleoenvironmental Reconstructions from Marine Sediments @ AWI Pediastrum Pollen per unit sediment mass Sampling gear Siberian River Run-Off SIRRO Matthiessen, Jens Palynology from surface sediment samples of the Arctic Ocean |
topic_facet |
Akademik Boris Petrov AWI_Paleo Botryococcus per unit mass BP97 BP97-10 BP97-12 BP97-17 BP97-19 BP97-21 BP97-27 BP97-32 BP97-35 BP97-39 BP97-42 BP97-43 BP97-46 BP97-47 BP97-48 BP97-49 BP97-50 BP97-52 BP97-55 BP97-56 BP97-58 Counting palynology DEPTH sediment/rock Desmidiaceae per unit mass Dinoflagellate cyst per unit mass DIVERSE Elevation of event Event label Kara Sea KaraSea97 Latitude of event Longitude of event MULT Multiple investigations Paleoenvironmental Reconstructions from Marine Sediments @ AWI Pediastrum Pollen per unit sediment mass Sampling gear Siberian River Run-Off SIRRO |
description |
Freshwater chlorophycean algae are characteristic organic-walled microfossils in recent coastal and shelf sediments from the Beaufort, Laptev and Kara seas (Arctic Ocean). The persistent occurrence of the chlorophycean algae Pediastrum spp. and Botryococcus cf. braunii in marine palynomorph assemblages is related to the discharge of freshwater and suspended matter from the large Siberian and North American rivers into the Arctic shelf seas. The distribution patterns of these algae in the marine environments reflect the predominant deposition of riverine sediments and organic matter along the salinity gradient from the outer estuaries and prodeltas to the shelf break. Sedimentary processes overprint the primary distribution of these algae. Resuspension of sediments by waves and bottom currents may transport sediments in the bottom nepheloid layer along the submarine channels to the shelf break. Bottom sediments and microfossils may be incorporated into sea ice during freeze-up in autumn and winter leading to an export from the shelves into the deep sea. The presence of these freshwater algae in sea-ice and bottom sediments in the central Arctic Ocean confirm that transport in sea ice is an important process which leads to a redistribution of shallow water microfossils. |
format |
Dataset |
author |
Matthiessen, Jens |
author_facet |
Matthiessen, Jens |
author_sort |
Matthiessen, Jens |
title |
Palynology from surface sediment samples of the Arctic Ocean |
title_short |
Palynology from surface sediment samples of the Arctic Ocean |
title_full |
Palynology from surface sediment samples of the Arctic Ocean |
title_fullStr |
Palynology from surface sediment samples of the Arctic Ocean |
title_full_unstemmed |
Palynology from surface sediment samples of the Arctic Ocean |
title_sort |
palynology from surface sediment samples of the arctic ocean |
publisher |
PANGAEA |
publishDate |
2000 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.57869 https://doi.org/10.1594/PANGAEA.57869 |
op_coverage |
MEDIAN LATITUDE: 73.206416 * MEDIAN LONGITUDE: 76.849291 * SOUTH-BOUND LATITUDE: 72.093160 * WEST-BOUND LONGITUDE: 72.662000 * NORTH-BOUND LATITUDE: 74.000667 * EAST-BOUND LONGITUDE: 82.813333 * DATE/TIME START: 1997-09-14T09:59:00 * DATE/TIME END: 1997-09-25T11:18:00 * MINIMUM DEPTH, sediment/rock: 0 m * MAXIMUM DEPTH, sediment/rock: 0 m |
long_lat |
ENVELOPE(72.662000,82.813333,74.000667,72.093160) |
geographic |
Arctic Arctic Ocean Kara Sea |
geographic_facet |
Arctic Arctic Ocean Kara Sea |
genre |
Arctic Arctic Arctic Ocean Kara Sea laptev Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean Kara Sea laptev Sea ice |
op_source |
Supplement to: Matthiessen, Jens; Kunz-Pirrung, Martina; Mudie, Peta J (2000): Freshwater chlorophycean algae from the Beaufort, Laptev and Kara Seas (Arctic Ocean) as indicators of river runoff. International Journal of Earth Sciences, 89(3), 470-485, https://doi.org/10.1007/s005310000127 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.57869 https://doi.org/10.1594/PANGAEA.57869 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.57869 https://doi.org/10.1007/s005310000127 |
_version_ |
1766298275805134848 |