Mineralogical, geochemical, and lipid biomarker study of cabonate precipitates at station GeoB9908-1
Carbonate precipitates recovered from 2,000 m water depth at the Dolgovskoy Mound (Shatsky Ridge, north eastern Black Sea) were studied using mineralogical, geochemical and lipid biomarker analyses. The carbonates differ in shape from simple pavements to cavernous structures with thick microbial mat...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.743257 2023-05-15T18:19:21+02:00 Mineralogical, geochemical, and lipid biomarker study of cabonate precipitates at station GeoB9908-1 Bahr, André Pape, Thomas Bohrmann, Gerhard Mazzini, Adriano Haeckel, Matthias Reitz, Anja Ivanov, Michael MEDIAN LATITUDE: 44.017417 * MEDIAN LONGITUDE: 36.689583 * SOUTH-BOUND LATITUDE: 44.016000 * WEST-BOUND LONGITUDE: 36.689167 * NORTH-BOUND LATITUDE: 44.018833 * EAST-BOUND LONGITUDE: 36.690000 * DATE/TIME START: 2005-06-15T01:00:00 * DATE/TIME END: 2005-06-15T03:23:00 2009-07-21 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.743257 https://doi.org/10.1594/PANGAEA.743257 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.743257 https://doi.org/10.1594/PANGAEA.743257 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Bahr, André; Pape, Thomas; Bohrmann, Gerhard; Mazzini, Adriano; Haeckel, Matthias; Reitz, Anja; Ivanov, Michael (2009): Authigenic carbonate precipitates from the NE Black Sea: a mineralogical, geochemical, and lipid biomarker study. International Journal of Earth Sciences, 98, 677-695, https://doi.org/10.1007/s00531-007-0264-1 BS346GR Center for Marine Environmental Sciences Dolgovskoy mound GeoB9908-1 MARUM Professor Logachev Television-Grab TTR-15 TVG Dataset 2009 ftpangaea https://doi.org/10.1594/PANGAEA.743257 https://doi.org/10.1007/s00531-007-0264-1 2023-01-20T07:31:51Z Carbonate precipitates recovered from 2,000 m water depth at the Dolgovskoy Mound (Shatsky Ridge, north eastern Black Sea) were studied using mineralogical, geochemical and lipid biomarker analyses. The carbonates differ in shape from simple pavements to cavernous structures with thick microbial mats attached to their lower side and within cavities. Low d13C values measured on carbonates (-41 to -32 per mill V-PDB) and extracted lipid biomarkers indicate that anaerobic oxidation of methane (AOM) played a crucial role in precipitating these carbonates. The internal structure of the carbonates is dominated by finely laminated coccolith ooze and homogeneous clay layers, both cemented by micritic high-magnesium calcite (HMC), and pure, botryoidal, yellowish low-magnesium calcite (LMC) grown in direct contact to microbial mats. d18O measurements suggest that the authigenic HMC precipitated in equilibrium with the Black Sea bottom water while the yellowish LMC rims have been growing in slightly 18O-depleted interstitial water. Although precipitated under significantly different environmental conditions, especially with respect to methane availability, all analysed carbonate samples show lipid patterns that are typical for ANME-1 dominated AOM consortia, in the case of the HMC samples with significant contributions of allochthonous components of marine and terrestrial origin, reflecting the hemipelagic nature of the primary sediment. Dataset Shatsky ridge PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(36.689167,36.690000,44.018833,44.016000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
BS346GR Center for Marine Environmental Sciences Dolgovskoy mound GeoB9908-1 MARUM Professor Logachev Television-Grab TTR-15 TVG |
spellingShingle |
BS346GR Center for Marine Environmental Sciences Dolgovskoy mound GeoB9908-1 MARUM Professor Logachev Television-Grab TTR-15 TVG Bahr, André Pape, Thomas Bohrmann, Gerhard Mazzini, Adriano Haeckel, Matthias Reitz, Anja Ivanov, Michael Mineralogical, geochemical, and lipid biomarker study of cabonate precipitates at station GeoB9908-1 |
topic_facet |
BS346GR Center for Marine Environmental Sciences Dolgovskoy mound GeoB9908-1 MARUM Professor Logachev Television-Grab TTR-15 TVG |
description |
Carbonate precipitates recovered from 2,000 m water depth at the Dolgovskoy Mound (Shatsky Ridge, north eastern Black Sea) were studied using mineralogical, geochemical and lipid biomarker analyses. The carbonates differ in shape from simple pavements to cavernous structures with thick microbial mats attached to their lower side and within cavities. Low d13C values measured on carbonates (-41 to -32 per mill V-PDB) and extracted lipid biomarkers indicate that anaerobic oxidation of methane (AOM) played a crucial role in precipitating these carbonates. The internal structure of the carbonates is dominated by finely laminated coccolith ooze and homogeneous clay layers, both cemented by micritic high-magnesium calcite (HMC), and pure, botryoidal, yellowish low-magnesium calcite (LMC) grown in direct contact to microbial mats. d18O measurements suggest that the authigenic HMC precipitated in equilibrium with the Black Sea bottom water while the yellowish LMC rims have been growing in slightly 18O-depleted interstitial water. Although precipitated under significantly different environmental conditions, especially with respect to methane availability, all analysed carbonate samples show lipid patterns that are typical for ANME-1 dominated AOM consortia, in the case of the HMC samples with significant contributions of allochthonous components of marine and terrestrial origin, reflecting the hemipelagic nature of the primary sediment. |
format |
Dataset |
author |
Bahr, André Pape, Thomas Bohrmann, Gerhard Mazzini, Adriano Haeckel, Matthias Reitz, Anja Ivanov, Michael |
author_facet |
Bahr, André Pape, Thomas Bohrmann, Gerhard Mazzini, Adriano Haeckel, Matthias Reitz, Anja Ivanov, Michael |
author_sort |
Bahr, André |
title |
Mineralogical, geochemical, and lipid biomarker study of cabonate precipitates at station GeoB9908-1 |
title_short |
Mineralogical, geochemical, and lipid biomarker study of cabonate precipitates at station GeoB9908-1 |
title_full |
Mineralogical, geochemical, and lipid biomarker study of cabonate precipitates at station GeoB9908-1 |
title_fullStr |
Mineralogical, geochemical, and lipid biomarker study of cabonate precipitates at station GeoB9908-1 |
title_full_unstemmed |
Mineralogical, geochemical, and lipid biomarker study of cabonate precipitates at station GeoB9908-1 |
title_sort |
mineralogical, geochemical, and lipid biomarker study of cabonate precipitates at station geob9908-1 |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.743257 https://doi.org/10.1594/PANGAEA.743257 |
op_coverage |
MEDIAN LATITUDE: 44.017417 * MEDIAN LONGITUDE: 36.689583 * SOUTH-BOUND LATITUDE: 44.016000 * WEST-BOUND LONGITUDE: 36.689167 * NORTH-BOUND LATITUDE: 44.018833 * EAST-BOUND LONGITUDE: 36.690000 * DATE/TIME START: 2005-06-15T01:00:00 * DATE/TIME END: 2005-06-15T03:23:00 |
long_lat |
ENVELOPE(36.689167,36.690000,44.018833,44.016000) |
genre |
Shatsky ridge |
genre_facet |
Shatsky ridge |
op_source |
Supplement to: Bahr, André; Pape, Thomas; Bohrmann, Gerhard; Mazzini, Adriano; Haeckel, Matthias; Reitz, Anja; Ivanov, Michael (2009): Authigenic carbonate precipitates from the NE Black Sea: a mineralogical, geochemical, and lipid biomarker study. International Journal of Earth Sciences, 98, 677-695, https://doi.org/10.1007/s00531-007-0264-1 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.743257 https://doi.org/10.1594/PANGAEA.743257 |
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.743257 https://doi.org/10.1007/s00531-007-0264-1 |
_version_ |
1766196415622545408 |