Grain size analysis of a short sediment core from the Lomonosov Ridge, central Arctic Ocean
Trigger core 07, is a 53 cm long sediment core that was collected during the Danish-Swedish expedition “Lomonosov Ridge off Greenland 2012” on the slope of the Lomonosov Ridge in the Arctic Ocean at a depth of 2522 m. This part of the world has experienced critical environmental changes during the Q...
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Stockholms universitet, Institutionen för geologiska vetenskaper
2015
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ftstockholmuniv:oai:DiVA.org:su-118414 2023-05-15T14:55:23+02:00 Grain size analysis of a short sediment core from the Lomonosov Ridge, central Arctic Ocean Fuentes Guerrero, César 2015 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-118414 eng eng Stockholms universitet, Institutionen för geologiska vetenskaper http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-118414 info:eu-repo/semantics/openAccess Lomonosov Ridge trigger core sediment core manganese cycles glacial/interglacial cycles Natural Sciences Naturvetenskap Earth and Related Environmental Sciences Geovetenskap och miljövetenskap Geology Geologi Oceanography Hydrology and Water Resources Oceanografi hydrologi och vattenresurser Student thesis info:eu-repo/semantics/bachelorThesis text 2015 ftstockholmuniv 2023-02-23T21:39:11Z Trigger core 07, is a 53 cm long sediment core that was collected during the Danish-Swedish expedition “Lomonosov Ridge off Greenland 2012” on the slope of the Lomonosov Ridge in the Arctic Ocean at a depth of 2522 m. This part of the world has experienced critical environmental changes during the Quaternary. Ice-sheets have advanced and retreated, and deposited sediments through all the Arctic Ocean. Glacial sediments contain coarser material and are gray, whereas interglacial sediments are brown, because of high amounts of manganese, and consist of fine-grained material. The aim of this project is to make grain size analysis on TC 07 with the purpose to make an interpretation of the grain size data in relation to glaciation history and paleo-oceanography. For that, a correlation with piston core 07 has been made, and also a correlation between piston core 07 and the Arctic Coring Expedition, ACEX. The results showed that fine-grained material is more abundant in the top brown unit down to 32 cm, suggesting an interglacial period. This is followed by a gray-beige unit that goes down to 49 cm, and consist of coarser material, indicating glacial deposits. This unit can be linked to the Marine Isotope Stage 2, MIS 2, which began approximately 29000 years ago and ended about 14000 years ago ”Trigger core 07” är en 53 cm lång sedimentkärna som togs upp på ett djup av 2522 m från Lomonosovryggen i Arktisk under en dansk-svensk expedition kallad ”Lomonosov Ridge off Greenland 2012”. Den här delen av världen har genomgått kraftiga klimatförändringar under kvartär. Istäcken har vuxit fram och dragit sig tillbaka och avsatt sediment över hela Arktis. Sediment avsatta under istider, kännetecknas av att vara gråa med mycket grovt material, medan sediment avsatta under mellanistider är bruna, vilket är på grund av de höga halterna av mangan och består av finkornigt material. Målet med denna uppsats är att göra en kornstorleksanalys på sedimentkärnan, med syfte i åtanke på att göra en tolkning av informationen i ... Bachelor Thesis Arctic Arctic Ocean Arktis Arktis* Greenland Lomonosov Ridge Lomonosovryggen Stockholm University: Publications (DiVA) Arctic Arctic Ocean Greenland Bruna ENVELOPE(18.576,18.576,69.786,69.786) |
institution |
Open Polar |
collection |
Stockholm University: Publications (DiVA) |
op_collection_id |
ftstockholmuniv |
language |
English |
topic |
Lomonosov Ridge trigger core sediment core manganese cycles glacial/interglacial cycles Natural Sciences Naturvetenskap Earth and Related Environmental Sciences Geovetenskap och miljövetenskap Geology Geologi Oceanography Hydrology and Water Resources Oceanografi hydrologi och vattenresurser |
spellingShingle |
Lomonosov Ridge trigger core sediment core manganese cycles glacial/interglacial cycles Natural Sciences Naturvetenskap Earth and Related Environmental Sciences Geovetenskap och miljövetenskap Geology Geologi Oceanography Hydrology and Water Resources Oceanografi hydrologi och vattenresurser Fuentes Guerrero, César Grain size analysis of a short sediment core from the Lomonosov Ridge, central Arctic Ocean |
topic_facet |
Lomonosov Ridge trigger core sediment core manganese cycles glacial/interglacial cycles Natural Sciences Naturvetenskap Earth and Related Environmental Sciences Geovetenskap och miljövetenskap Geology Geologi Oceanography Hydrology and Water Resources Oceanografi hydrologi och vattenresurser |
description |
Trigger core 07, is a 53 cm long sediment core that was collected during the Danish-Swedish expedition “Lomonosov Ridge off Greenland 2012” on the slope of the Lomonosov Ridge in the Arctic Ocean at a depth of 2522 m. This part of the world has experienced critical environmental changes during the Quaternary. Ice-sheets have advanced and retreated, and deposited sediments through all the Arctic Ocean. Glacial sediments contain coarser material and are gray, whereas interglacial sediments are brown, because of high amounts of manganese, and consist of fine-grained material. The aim of this project is to make grain size analysis on TC 07 with the purpose to make an interpretation of the grain size data in relation to glaciation history and paleo-oceanography. For that, a correlation with piston core 07 has been made, and also a correlation between piston core 07 and the Arctic Coring Expedition, ACEX. The results showed that fine-grained material is more abundant in the top brown unit down to 32 cm, suggesting an interglacial period. This is followed by a gray-beige unit that goes down to 49 cm, and consist of coarser material, indicating glacial deposits. This unit can be linked to the Marine Isotope Stage 2, MIS 2, which began approximately 29000 years ago and ended about 14000 years ago ”Trigger core 07” är en 53 cm lång sedimentkärna som togs upp på ett djup av 2522 m från Lomonosovryggen i Arktisk under en dansk-svensk expedition kallad ”Lomonosov Ridge off Greenland 2012”. Den här delen av världen har genomgått kraftiga klimatförändringar under kvartär. Istäcken har vuxit fram och dragit sig tillbaka och avsatt sediment över hela Arktis. Sediment avsatta under istider, kännetecknas av att vara gråa med mycket grovt material, medan sediment avsatta under mellanistider är bruna, vilket är på grund av de höga halterna av mangan och består av finkornigt material. Målet med denna uppsats är att göra en kornstorleksanalys på sedimentkärnan, med syfte i åtanke på att göra en tolkning av informationen i ... |
format |
Bachelor Thesis |
author |
Fuentes Guerrero, César |
author_facet |
Fuentes Guerrero, César |
author_sort |
Fuentes Guerrero, César |
title |
Grain size analysis of a short sediment core from the Lomonosov Ridge, central Arctic Ocean |
title_short |
Grain size analysis of a short sediment core from the Lomonosov Ridge, central Arctic Ocean |
title_full |
Grain size analysis of a short sediment core from the Lomonosov Ridge, central Arctic Ocean |
title_fullStr |
Grain size analysis of a short sediment core from the Lomonosov Ridge, central Arctic Ocean |
title_full_unstemmed |
Grain size analysis of a short sediment core from the Lomonosov Ridge, central Arctic Ocean |
title_sort |
grain size analysis of a short sediment core from the lomonosov ridge, central arctic ocean |
publisher |
Stockholms universitet, Institutionen för geologiska vetenskaper |
publishDate |
2015 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-118414 |
long_lat |
ENVELOPE(18.576,18.576,69.786,69.786) |
geographic |
Arctic Arctic Ocean Greenland Bruna |
geographic_facet |
Arctic Arctic Ocean Greenland Bruna |
genre |
Arctic Arctic Ocean Arktis Arktis* Greenland Lomonosov Ridge Lomonosovryggen |
genre_facet |
Arctic Arctic Ocean Arktis Arktis* Greenland Lomonosov Ridge Lomonosovryggen |
op_relation |
http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-118414 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766327180706447360 |