Diatom Assemblages from the Daginsky Mud Volcano Sediments (Eastern Sakhalin) and Their Implication
Diatom assemblages in mud volcanoes are quite rare and are poorly studied. The finding of a rich diatom flora in the sediments of the Daginsky Mud Volcano (DMV), located in the tidal zone of the Nyisky Bay of the Sea of Okhotsk, is of interest to study the conditions for the formation of host sedime...
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ftdoajarticles:oai:doaj.org/article:f76cea3198b44737a64f01033e2b1190 2023-10-29T02:39:49+01:00 Diatom Assemblages from the Daginsky Mud Volcano Sediments (Eastern Sakhalin) and Their Implication Ira B. Tsoy Anna V. Sorochinskaya 2023-09-01T00:00:00Z https://doi.org/10.3390/quat6030049 https://doaj.org/article/f76cea3198b44737a64f01033e2b1190 EN eng MDPI AG https://www.mdpi.com/2571-550X/6/3/49 https://doaj.org/toc/2571-550X doi:10.3390/quat6030049 2571-550X https://doaj.org/article/f76cea3198b44737a64f01033e2b1190 Quaternary, Vol 6, Iss 49, p 49 (2023) diatom assemblages sediments Daginsky Mud Volcano thermal springs Nyisky Bay Eastern Sakhalin Human evolution GN281-289 Stratigraphy QE640-699 article 2023 ftdoajarticles https://doi.org/10.3390/quat6030049 2023-10-01T00:37:05Z Diatom assemblages in mud volcanoes are quite rare and are poorly studied. The finding of a rich diatom flora in the sediments of the Daginsky Mud Volcano (DMV), located in the tidal zone of the Nyisky Bay of the Sea of Okhotsk, is of interest to study the conditions for the formation of host sediments in the zone of influence of various extreme factors, such as outflows of gases and water–mud mass, thermal springs, and tides. For this purpose, the taxonomical composition of diatom assemblages and concentration of diatoms in DMV sediments were studied. A comparison was made with the diatoms of geothermal springs of the Russian Far East associated with volcanic activity, and the stratigraphic occurrence of the found extinct diatoms was analyzed, which is important for determining their source and the age of the mud volcano roots. Diatom assemblages from DMV sediments are mainly characterized by the predominance of Metascolioneis tumida , Paralia sulcata , Odontella aurita , Pinnunavis yarrensis , Petroneis marina , Cocconeis scutellum , and Navicula digitoradiata . They consist of diatoms of different biotopes and extinct species. The diversity and abundance of brackish water and marine species indicates the predominant influence of sea waters on the formation of DMV sediments. The diverse freshwater species were mainly introduced into sediments with river runoff, but it is likely that some of these, such as the cosmopolitan alkaliphilic species, are inhabitants of geothermal springs. The presence of extinct species from the underlying Neogene sediments from where they were carried with gas–water–mud masses is the most typical for diatom assemblages of the DMV. Article in Journal/Newspaper Sakhalin Directory of Open Access Journals: DOAJ Articles Quaternary 6 3 49 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
diatom assemblages sediments Daginsky Mud Volcano thermal springs Nyisky Bay Eastern Sakhalin Human evolution GN281-289 Stratigraphy QE640-699 |
spellingShingle |
diatom assemblages sediments Daginsky Mud Volcano thermal springs Nyisky Bay Eastern Sakhalin Human evolution GN281-289 Stratigraphy QE640-699 Ira B. Tsoy Anna V. Sorochinskaya Diatom Assemblages from the Daginsky Mud Volcano Sediments (Eastern Sakhalin) and Their Implication |
topic_facet |
diatom assemblages sediments Daginsky Mud Volcano thermal springs Nyisky Bay Eastern Sakhalin Human evolution GN281-289 Stratigraphy QE640-699 |
description |
Diatom assemblages in mud volcanoes are quite rare and are poorly studied. The finding of a rich diatom flora in the sediments of the Daginsky Mud Volcano (DMV), located in the tidal zone of the Nyisky Bay of the Sea of Okhotsk, is of interest to study the conditions for the formation of host sediments in the zone of influence of various extreme factors, such as outflows of gases and water–mud mass, thermal springs, and tides. For this purpose, the taxonomical composition of diatom assemblages and concentration of diatoms in DMV sediments were studied. A comparison was made with the diatoms of geothermal springs of the Russian Far East associated with volcanic activity, and the stratigraphic occurrence of the found extinct diatoms was analyzed, which is important for determining their source and the age of the mud volcano roots. Diatom assemblages from DMV sediments are mainly characterized by the predominance of Metascolioneis tumida , Paralia sulcata , Odontella aurita , Pinnunavis yarrensis , Petroneis marina , Cocconeis scutellum , and Navicula digitoradiata . They consist of diatoms of different biotopes and extinct species. The diversity and abundance of brackish water and marine species indicates the predominant influence of sea waters on the formation of DMV sediments. The diverse freshwater species were mainly introduced into sediments with river runoff, but it is likely that some of these, such as the cosmopolitan alkaliphilic species, are inhabitants of geothermal springs. The presence of extinct species from the underlying Neogene sediments from where they were carried with gas–water–mud masses is the most typical for diatom assemblages of the DMV. |
format |
Article in Journal/Newspaper |
author |
Ira B. Tsoy Anna V. Sorochinskaya |
author_facet |
Ira B. Tsoy Anna V. Sorochinskaya |
author_sort |
Ira B. Tsoy |
title |
Diatom Assemblages from the Daginsky Mud Volcano Sediments (Eastern Sakhalin) and Their Implication |
title_short |
Diatom Assemblages from the Daginsky Mud Volcano Sediments (Eastern Sakhalin) and Their Implication |
title_full |
Diatom Assemblages from the Daginsky Mud Volcano Sediments (Eastern Sakhalin) and Their Implication |
title_fullStr |
Diatom Assemblages from the Daginsky Mud Volcano Sediments (Eastern Sakhalin) and Their Implication |
title_full_unstemmed |
Diatom Assemblages from the Daginsky Mud Volcano Sediments (Eastern Sakhalin) and Their Implication |
title_sort |
diatom assemblages from the daginsky mud volcano sediments (eastern sakhalin) and their implication |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/quat6030049 https://doaj.org/article/f76cea3198b44737a64f01033e2b1190 |
genre |
Sakhalin |
genre_facet |
Sakhalin |
op_source |
Quaternary, Vol 6, Iss 49, p 49 (2023) |
op_relation |
https://www.mdpi.com/2571-550X/6/3/49 https://doaj.org/toc/2571-550X doi:10.3390/quat6030049 2571-550X https://doaj.org/article/f76cea3198b44737a64f01033e2b1190 |
op_doi |
https://doi.org/10.3390/quat6030049 |
container_title |
Quaternary |
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6 |
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3 |
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49 |
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1781067219524911104 |