(Table T4) Final depth vs. velocity and two-way traveltime data, ODP Site 178-1103
Site 1103 was one of a transect of three sites drilled across the Antarctic Peninsula continental shelf during Leg 178. The aim of drilling on the shelf was to determine the age of the sedimentary sequences and to ground truth previous interpretations of the depositional environment (i.e., topsets a...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.138819 2024-09-15T17:43:36+00:00 (Table T4) Final depth vs. velocity and two-way traveltime data, ODP Site 178-1103 Moerz, Tobias Laronga, R Lauer-Leredde, C Escutia Dotti, Carlota Wolf-Welling, Thomas C W LATITUDE: -63.999500 * LONGITUDE: -65.465317 * DATE/TIME START: 1998-04-04T00:00:00 * DATE/TIME END: 1998-04-04T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.00 m * MAXIMUM DEPTH, sediment/rock: 362.00 m 2001 text/tab-separated-values, 3622 data points https://doi.pangaea.de/10.1594/PANGAEA.138819 https://doi.org/10.1594/PANGAEA.138819 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.138819 https://doi.org/10.1594/PANGAEA.138819 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Moerz, Tobias; Laronga, R; Lauer-Leredde, C; Escutia Dotti, Carlota; Wolf-Welling, Thomas C W (2001): Composite velocity profile of shelf Site 1103 (ODP Leg178, western Antarctic Peninsula). In: Barker, PF; Camerlenghi, A; Acton, GD; Ramsay, ATS (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 178, 1-34, https://doi.org/10.2973/odp.proc.sr.178.229.2001 178-1103 COMPCORE Composite Core DEPTH sediment/rock Drake Passage interpolated Joides Resolution Leg178 Ocean Drilling Program ODP Two-way traveltime Velocity compressional wave dataset 2001 ftpangaea https://doi.org/10.1594/PANGAEA.13881910.2973/odp.proc.sr.178.229.2001 2024-07-24T02:31:23Z Site 1103 was one of a transect of three sites drilled across the Antarctic Peninsula continental shelf during Leg 178. The aim of drilling on the shelf was to determine the age of the sedimentary sequences and to ground truth previous interpretations of the depositional environment (i.e., topsets and foresets) of progradational seismostratigraphic sequences S1, S2, S3, and S4. The ultimate objective was to obtain a better understanding of the history of glacial advances and retreats in this west Antarctic margin. Drilling the topsets of the progradational wedge (0-247 m below seafloor [mbsf]), which consist of unsorted and unconsolidated materials of seismic Unit S1, was very unfavorable, resulting in very low (2.3%) core recovery. Recovery improved (34%) below 247 mbsf, corresponding to sediments of seismic Unit S3, which have a consolidated matrix. Logs were only obtained from the interval between 75 and 244 mbsf, and inconsistencies on the automatic analog picking of the signals received from the sonic log at the array and at the two other receivers prevented accurate shipboard time-depth conversions. This, in turn, limited the capacity for making seismic stratigraphic interpretations at this site and regionally. This study is an attempt to compile all available data sources, perform quality checks, and introduce nonstandard processing techniques for the logging data obtained to arrive at a reliable and continuous depth vs. velocity profile. We defined 13 data categories using differential traveltime information. Polynomial exclusion techniques with various orders and low-pass filtering reduced the noise of the initial data pool and produced a definite velocity depth profile that is synchronous with the resistivity logging data. A comparison of the velocity profile produced with various other logs of Site 1103 further validates the presented data. All major logging units are expressed within the new velocity data. A depth-migrated section with the new velocity data is presented together with the original ... Dataset Antarc* Antarctic Antarctic Peninsula Drake Passage PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-65.465317,-65.465317,-63.999500,-63.999500) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
178-1103 COMPCORE Composite Core DEPTH sediment/rock Drake Passage interpolated Joides Resolution Leg178 Ocean Drilling Program ODP Two-way traveltime Velocity compressional wave |
spellingShingle |
178-1103 COMPCORE Composite Core DEPTH sediment/rock Drake Passage interpolated Joides Resolution Leg178 Ocean Drilling Program ODP Two-way traveltime Velocity compressional wave Moerz, Tobias Laronga, R Lauer-Leredde, C Escutia Dotti, Carlota Wolf-Welling, Thomas C W (Table T4) Final depth vs. velocity and two-way traveltime data, ODP Site 178-1103 |
topic_facet |
178-1103 COMPCORE Composite Core DEPTH sediment/rock Drake Passage interpolated Joides Resolution Leg178 Ocean Drilling Program ODP Two-way traveltime Velocity compressional wave |
description |
Site 1103 was one of a transect of three sites drilled across the Antarctic Peninsula continental shelf during Leg 178. The aim of drilling on the shelf was to determine the age of the sedimentary sequences and to ground truth previous interpretations of the depositional environment (i.e., topsets and foresets) of progradational seismostratigraphic sequences S1, S2, S3, and S4. The ultimate objective was to obtain a better understanding of the history of glacial advances and retreats in this west Antarctic margin. Drilling the topsets of the progradational wedge (0-247 m below seafloor [mbsf]), which consist of unsorted and unconsolidated materials of seismic Unit S1, was very unfavorable, resulting in very low (2.3%) core recovery. Recovery improved (34%) below 247 mbsf, corresponding to sediments of seismic Unit S3, which have a consolidated matrix. Logs were only obtained from the interval between 75 and 244 mbsf, and inconsistencies on the automatic analog picking of the signals received from the sonic log at the array and at the two other receivers prevented accurate shipboard time-depth conversions. This, in turn, limited the capacity for making seismic stratigraphic interpretations at this site and regionally. This study is an attempt to compile all available data sources, perform quality checks, and introduce nonstandard processing techniques for the logging data obtained to arrive at a reliable and continuous depth vs. velocity profile. We defined 13 data categories using differential traveltime information. Polynomial exclusion techniques with various orders and low-pass filtering reduced the noise of the initial data pool and produced a definite velocity depth profile that is synchronous with the resistivity logging data. A comparison of the velocity profile produced with various other logs of Site 1103 further validates the presented data. All major logging units are expressed within the new velocity data. A depth-migrated section with the new velocity data is presented together with the original ... |
format |
Dataset |
author |
Moerz, Tobias Laronga, R Lauer-Leredde, C Escutia Dotti, Carlota Wolf-Welling, Thomas C W |
author_facet |
Moerz, Tobias Laronga, R Lauer-Leredde, C Escutia Dotti, Carlota Wolf-Welling, Thomas C W |
author_sort |
Moerz, Tobias |
title |
(Table T4) Final depth vs. velocity and two-way traveltime data, ODP Site 178-1103 |
title_short |
(Table T4) Final depth vs. velocity and two-way traveltime data, ODP Site 178-1103 |
title_full |
(Table T4) Final depth vs. velocity and two-way traveltime data, ODP Site 178-1103 |
title_fullStr |
(Table T4) Final depth vs. velocity and two-way traveltime data, ODP Site 178-1103 |
title_full_unstemmed |
(Table T4) Final depth vs. velocity and two-way traveltime data, ODP Site 178-1103 |
title_sort |
(table t4) final depth vs. velocity and two-way traveltime data, odp site 178-1103 |
publisher |
PANGAEA |
publishDate |
2001 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.138819 https://doi.org/10.1594/PANGAEA.138819 |
op_coverage |
LATITUDE: -63.999500 * LONGITUDE: -65.465317 * DATE/TIME START: 1998-04-04T00:00:00 * DATE/TIME END: 1998-04-04T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.00 m * MAXIMUM DEPTH, sediment/rock: 362.00 m |
long_lat |
ENVELOPE(-65.465317,-65.465317,-63.999500,-63.999500) |
genre |
Antarc* Antarctic Antarctic Peninsula Drake Passage |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Drake Passage |
op_source |
Supplement to: Moerz, Tobias; Laronga, R; Lauer-Leredde, C; Escutia Dotti, Carlota; Wolf-Welling, Thomas C W (2001): Composite velocity profile of shelf Site 1103 (ODP Leg178, western Antarctic Peninsula). In: Barker, PF; Camerlenghi, A; Acton, GD; Ramsay, ATS (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 178, 1-34, https://doi.org/10.2973/odp.proc.sr.178.229.2001 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.138819 https://doi.org/10.1594/PANGAEA.138819 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.13881910.2973/odp.proc.sr.178.229.2001 |
_version_ |
1810490634565320704 |