Petroleum-related hydrocarbons in deep and subsurface sediments from South-Western Barents Sea
Abstract Subsurface sediments from a pockmark area in South-Western Barents Sea have been earlier found to contain elevated levels of petroleum-related polycyclic aromatic hydrocarbons. This work describes a comprehensive analysis of various biomarkers, including the highly source-specific hopanes,...
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Online Access: | http://hdl.handle.net/2262/63615 https://doi.org/10.1016/j.marenvres.2011.04.003 |
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fttrinitycoll:oai:tara.tcd.ie:2262/63615 2023-05-15T15:38:40+02:00 Petroleum-related hydrocarbons in deep and subsurface sediments from South-Western Barents Sea 2012-06-02T00:53:38Z http://hdl.handle.net/2262/63615 https://doi.org/10.1016/j.marenvres.2011.04.003 en eng Elsevier 01411136 (ISSN) S0141-1136(11)00046-8 (PII) S0141-1136(11)00046-8 (publisherID) http://hdl.handle.net/2262/63615 Marine Environmental Research doi:10.1016/j.marenvres.2011.04.003 2011 12 months Biomarkers hopanes sediments pockmarks PAH alkanes Barents Sea 2012 fttrinitycoll https://doi.org/10.1016/j.marenvres.2011.04.003 2020-02-16T13:53:43Z Abstract Subsurface sediments from a pockmark area in South-Western Barents Sea have been earlier found to contain elevated levels of petroleum-related polycyclic aromatic hydrocarbons. This work describes a comprehensive analysis of various biomarkers, including the highly source-specific hopanes, in a 4.5 m long gravity core from the same area, together with subsurface sediment samples from other areas in the region without pockmarks present (?background samples?). A clear difference between the pockmark gravity core and the background sediment cores was found, both with regard to genesis and the level of transformation of organic matter. A number of indicator parameters, such as methylphenanthrene index (MPI-1), point towards a significantly higher maturity of hydrocarbons in the pockmark core throughout its length as compared to the other sampled locations. Higher contents of microbial hopanoids (hopenes) may indicate the former presence of petroleum. These findings confirm the hypothesis of a natural hydrocarbon source in the deeper strata present in the studied location with pockmarks. correspondence: Corresponding author: Tel.: +47 55236394; fax: +47 55238555. (Boitsov, Stepan) stepan.boitsov@imr.no (Boitsov, Stepan) Institute of Marine Research (IMR) Bergen - NORWAY (Boitsov, Stepan) NORWAY (Boitsov, Stepan) Academician I.S. Gramberg All-Russia Research Institute for Geology and Mineral Resources of the World Ocean (VNIIO) - St. Petersburg--> - RUSSIAN FEDERATION (Petrova, Vera) Geological Survey of Norway (NGU) Trondheim--> - NORWAY (Jensen, Henning K.B.) Academician I.S. Gramberg All-Russia Research Institute for Geology and Mineral Resources of the World Ocean (VNIIO) - St. Petersburg--> - RUSSIAN FEDERATION (Kursheva, Anna) Academician I.S. Gramberg All-Russia Research Institute for Geology and Mineral Resources of the World Ocean (VNIIO) - St. Petersburg--> - RUSSIAN FEDERATION (Litvinenko, Ivan) Geological Survey of Norway (NGU) Trondheim--> - NORWAY (Chen, Yifeng) Institute of Marine Research (IMR) Bergen - NORWAY (Klungs?yr, Jarle) NORWAY RUSSIAN FEDERATION Received: 2011-02-25 Revised: 2011-04-15 Accepted: 2011-04-18 Other/Unknown Material Barents Sea The University of Dublin, Trinity College: TARA (Trinity's Access to Research Archive) Barents Sea Bergen Gramberg ENVELOPE(19.859,19.859,69.618,69.618) Norway Petrova ENVELOPE(-56.667,-56.667,-83.783,-83.783) Marine Environmental Research 71 5 357 368 |
institution |
Open Polar |
collection |
The University of Dublin, Trinity College: TARA (Trinity's Access to Research Archive) |
op_collection_id |
fttrinitycoll |
language |
English |
topic |
Biomarkers hopanes sediments pockmarks PAH alkanes Barents Sea |
spellingShingle |
Biomarkers hopanes sediments pockmarks PAH alkanes Barents Sea Petroleum-related hydrocarbons in deep and subsurface sediments from South-Western Barents Sea |
topic_facet |
Biomarkers hopanes sediments pockmarks PAH alkanes Barents Sea |
description |
Abstract Subsurface sediments from a pockmark area in South-Western Barents Sea have been earlier found to contain elevated levels of petroleum-related polycyclic aromatic hydrocarbons. This work describes a comprehensive analysis of various biomarkers, including the highly source-specific hopanes, in a 4.5 m long gravity core from the same area, together with subsurface sediment samples from other areas in the region without pockmarks present (?background samples?). A clear difference between the pockmark gravity core and the background sediment cores was found, both with regard to genesis and the level of transformation of organic matter. A number of indicator parameters, such as methylphenanthrene index (MPI-1), point towards a significantly higher maturity of hydrocarbons in the pockmark core throughout its length as compared to the other sampled locations. Higher contents of microbial hopanoids (hopenes) may indicate the former presence of petroleum. These findings confirm the hypothesis of a natural hydrocarbon source in the deeper strata present in the studied location with pockmarks. correspondence: Corresponding author: Tel.: +47 55236394; fax: +47 55238555. (Boitsov, Stepan) stepan.boitsov@imr.no (Boitsov, Stepan) Institute of Marine Research (IMR) Bergen - NORWAY (Boitsov, Stepan) NORWAY (Boitsov, Stepan) Academician I.S. Gramberg All-Russia Research Institute for Geology and Mineral Resources of the World Ocean (VNIIO) - St. Petersburg--> - RUSSIAN FEDERATION (Petrova, Vera) Geological Survey of Norway (NGU) Trondheim--> - NORWAY (Jensen, Henning K.B.) Academician I.S. Gramberg All-Russia Research Institute for Geology and Mineral Resources of the World Ocean (VNIIO) - St. Petersburg--> - RUSSIAN FEDERATION (Kursheva, Anna) Academician I.S. Gramberg All-Russia Research Institute for Geology and Mineral Resources of the World Ocean (VNIIO) - St. Petersburg--> - RUSSIAN FEDERATION (Litvinenko, Ivan) Geological Survey of Norway (NGU) Trondheim--> - NORWAY (Chen, Yifeng) Institute of Marine Research (IMR) Bergen - NORWAY (Klungs?yr, Jarle) NORWAY RUSSIAN FEDERATION Received: 2011-02-25 Revised: 2011-04-15 Accepted: 2011-04-18 |
title |
Petroleum-related hydrocarbons in deep and subsurface sediments from South-Western Barents Sea |
title_short |
Petroleum-related hydrocarbons in deep and subsurface sediments from South-Western Barents Sea |
title_full |
Petroleum-related hydrocarbons in deep and subsurface sediments from South-Western Barents Sea |
title_fullStr |
Petroleum-related hydrocarbons in deep and subsurface sediments from South-Western Barents Sea |
title_full_unstemmed |
Petroleum-related hydrocarbons in deep and subsurface sediments from South-Western Barents Sea |
title_sort |
petroleum-related hydrocarbons in deep and subsurface sediments from south-western barents sea |
publisher |
Elsevier |
publishDate |
2012 |
url |
http://hdl.handle.net/2262/63615 https://doi.org/10.1016/j.marenvres.2011.04.003 |
long_lat |
ENVELOPE(19.859,19.859,69.618,69.618) ENVELOPE(-56.667,-56.667,-83.783,-83.783) |
geographic |
Barents Sea Bergen Gramberg Norway Petrova |
geographic_facet |
Barents Sea Bergen Gramberg Norway Petrova |
genre |
Barents Sea |
genre_facet |
Barents Sea |
op_relation |
01411136 (ISSN) S0141-1136(11)00046-8 (PII) S0141-1136(11)00046-8 (publisherID) http://hdl.handle.net/2262/63615 Marine Environmental Research doi:10.1016/j.marenvres.2011.04.003 |
op_rights |
2011 12 months |
op_doi |
https://doi.org/10.1016/j.marenvres.2011.04.003 |
container_title |
Marine Environmental Research |
container_volume |
71 |
container_issue |
5 |
container_start_page |
357 |
op_container_end_page |
368 |
_version_ |
1766369872333242368 |