Documentation of sediment cores from the Great Meteor Seamount, North Atlantic
Sedimentological and biostratigraphic investigations of 15 cores (total length: 88 m) from the vicinity of Great Meteor seamount (about 30° N, 28° W) showed that the calcareous ooze are asymmetrically distributed around the seamount and vertically differentiated into two intervals. East and west of...
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PANGAEA
1976
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.548433 2023-05-15T17:32:57+02:00 Documentation of sediment cores from the Great Meteor Seamount, North Atlantic von Stackelberg, Ulrich von Rad, Ulrich Zobel, B MEDIAN LATITUDE: 30.082273 * MEDIAN LONGITUDE: -28.029455 * SOUTH-BOUND LATITUDE: 29.418000 * WEST-BOUND LONGITUDE: -28.896000 * NORTH-BOUND LATITUDE: 31.108000 * EAST-BOUND LONGITUDE: -25.241000 * DATE/TIME START: 1967-07-13T00:00:00 * DATE/TIME END: 1967-07-23T14:48:00 1976-11-14 application/zip, 11 datasets https://doi.pangaea.de/10.1594/PANGAEA.548433 https://doi.org/10.1594/PANGAEA.548433 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.548433 https://doi.org/10.1594/PANGAEA.548433 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: von Stackelberg, Ulrich; von Rad, Ulrich; Zobel, B (1976): Asymmetric distribution of displaced material in calareous oozes around Great Meteor Seamount (North Atlantic). Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C25, 1-46 Atlantische Kuppenfahrten 1967/4-7 M9 M9_143 M9_145 M9_146 M9_154 M9_155 M9_164 M9_167 M9_174 M9_175 M9_176 M9_177 Meteor (1964) North Atlantic Ocean PC Piston corer Dataset 1976 ftpangaea https://doi.org/10.1594/PANGAEA.548433 2023-01-20T07:31:00Z Sedimentological and biostratigraphic investigations of 15 cores (total length: 88 m) from the vicinity of Great Meteor seamount (about 30° N, 28° W) showed that the calcareous ooze are asymmetrically distributed around the seamount and vertically differentiated into two intervals. East and west of the seampunt, the upper "A"-interval is characterized by yellowish-brown sediment colors and bioturbation; ash layers and diatoms are restricted to the eastern cores. On both seamount flanks, the sediment of the lower "B"-interval are white and very rich in CaCO3 with a major fine silt (2-16 µ) mode (mainly coccoliths). Lamination, manganese micronodules, Tertiary foraminifera and discoasters, and small limestone and basalt fragments are typical of the "B"-interval of the eastern cores only. The sediments contain abundant displaced material which was reworked from the upper parts of the seamount. The sedimentation around the seamount is strongly influenced by the kind of displaced material and the intensity of its differentiated dispersal: the sedimentation rates are generally higher on the east than on the west flank /e.g. in "B": 0.9 cm/1000 y in the W; 3.1 cm/1000 y in the E), and lower for the "A" than for the "B"-interval. The lamination is explained by the combination of increased sedimentation rates with a strong input of material poor in organic carbon producing a hostile environment for benthic life. The CaCO3 content of the core is highly influenced by the proportion of displaced bigenous carbonate material (mainly coccoliths). The genuine in-situ conditions of the dissolution facies are only reflected by the minimum CaCO3 values of the cores (CCD = about 5,500 m; first bend in dissolution curve = 4,000 m; ACD = about 3,400 m). The preservation of the total foraminiferal association depends on the proportions of in-situ versus displaced specimens. In greater water depths (stronger dissolution), for example, the preservation can be improved by the admixture of relatively well preserved displaced foraminifera. ... Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Meteor Seamount ENVELOPE(8.500,8.500,-48.000,-48.000) ENVELOPE(-28.896000,-25.241000,31.108000,29.418000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Atlantische Kuppenfahrten 1967/4-7 M9 M9_143 M9_145 M9_146 M9_154 M9_155 M9_164 M9_167 M9_174 M9_175 M9_176 M9_177 Meteor (1964) North Atlantic Ocean PC Piston corer |
spellingShingle |
Atlantische Kuppenfahrten 1967/4-7 M9 M9_143 M9_145 M9_146 M9_154 M9_155 M9_164 M9_167 M9_174 M9_175 M9_176 M9_177 Meteor (1964) North Atlantic Ocean PC Piston corer von Stackelberg, Ulrich von Rad, Ulrich Zobel, B Documentation of sediment cores from the Great Meteor Seamount, North Atlantic |
topic_facet |
Atlantische Kuppenfahrten 1967/4-7 M9 M9_143 M9_145 M9_146 M9_154 M9_155 M9_164 M9_167 M9_174 M9_175 M9_176 M9_177 Meteor (1964) North Atlantic Ocean PC Piston corer |
description |
Sedimentological and biostratigraphic investigations of 15 cores (total length: 88 m) from the vicinity of Great Meteor seamount (about 30° N, 28° W) showed that the calcareous ooze are asymmetrically distributed around the seamount and vertically differentiated into two intervals. East and west of the seampunt, the upper "A"-interval is characterized by yellowish-brown sediment colors and bioturbation; ash layers and diatoms are restricted to the eastern cores. On both seamount flanks, the sediment of the lower "B"-interval are white and very rich in CaCO3 with a major fine silt (2-16 µ) mode (mainly coccoliths). Lamination, manganese micronodules, Tertiary foraminifera and discoasters, and small limestone and basalt fragments are typical of the "B"-interval of the eastern cores only. The sediments contain abundant displaced material which was reworked from the upper parts of the seamount. The sedimentation around the seamount is strongly influenced by the kind of displaced material and the intensity of its differentiated dispersal: the sedimentation rates are generally higher on the east than on the west flank /e.g. in "B": 0.9 cm/1000 y in the W; 3.1 cm/1000 y in the E), and lower for the "A" than for the "B"-interval. The lamination is explained by the combination of increased sedimentation rates with a strong input of material poor in organic carbon producing a hostile environment for benthic life. The CaCO3 content of the core is highly influenced by the proportion of displaced bigenous carbonate material (mainly coccoliths). The genuine in-situ conditions of the dissolution facies are only reflected by the minimum CaCO3 values of the cores (CCD = about 5,500 m; first bend in dissolution curve = 4,000 m; ACD = about 3,400 m). The preservation of the total foraminiferal association depends on the proportions of in-situ versus displaced specimens. In greater water depths (stronger dissolution), for example, the preservation can be improved by the admixture of relatively well preserved displaced foraminifera. ... |
format |
Dataset |
author |
von Stackelberg, Ulrich von Rad, Ulrich Zobel, B |
author_facet |
von Stackelberg, Ulrich von Rad, Ulrich Zobel, B |
author_sort |
von Stackelberg, Ulrich |
title |
Documentation of sediment cores from the Great Meteor Seamount, North Atlantic |
title_short |
Documentation of sediment cores from the Great Meteor Seamount, North Atlantic |
title_full |
Documentation of sediment cores from the Great Meteor Seamount, North Atlantic |
title_fullStr |
Documentation of sediment cores from the Great Meteor Seamount, North Atlantic |
title_full_unstemmed |
Documentation of sediment cores from the Great Meteor Seamount, North Atlantic |
title_sort |
documentation of sediment cores from the great meteor seamount, north atlantic |
publisher |
PANGAEA |
publishDate |
1976 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.548433 https://doi.org/10.1594/PANGAEA.548433 |
op_coverage |
MEDIAN LATITUDE: 30.082273 * MEDIAN LONGITUDE: -28.029455 * SOUTH-BOUND LATITUDE: 29.418000 * WEST-BOUND LONGITUDE: -28.896000 * NORTH-BOUND LATITUDE: 31.108000 * EAST-BOUND LONGITUDE: -25.241000 * DATE/TIME START: 1967-07-13T00:00:00 * DATE/TIME END: 1967-07-23T14:48:00 |
long_lat |
ENVELOPE(8.500,8.500,-48.000,-48.000) ENVELOPE(-28.896000,-25.241000,31.108000,29.418000) |
geographic |
Meteor Seamount |
geographic_facet |
Meteor Seamount |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: von Stackelberg, Ulrich; von Rad, Ulrich; Zobel, B (1976): Asymmetric distribution of displaced material in calareous oozes around Great Meteor Seamount (North Atlantic). Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C25, 1-46 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.548433 https://doi.org/10.1594/PANGAEA.548433 |
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.548433 |
_version_ |
1766131276943720448 |