Geissler, Wolfram H; Jokat, Wilfried; Jegen-Kulcsar, Marion; Schmidt-Aursch, Mechita (2022): Project ISOLDE: DEPAS ocean-bottom seismometer operations around Tristan da Cunha in 2012-2013 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.952352
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2022-12-15 • DOI registered: 2023-02-02
Abstract:
According to classic plume theory, the Tristan da Cunha mantle plume played a major role in the rifting of the South Atlantic margins by impinging at the base of the continental lithosphere shortly before or during the breakup of the South Atlantic. Onshore the Tristan mantle plume is associated with the emplacement of the Parana-Etendeka flood basalt province ~132 Ma, and offshore with the age-progressive Walvis Ridge and associated young seamount province. The global data is lacking coverage and therefore resolution around the Tristan da Cunha for shallower mantle depths.
The search for deep-reaching geophysical/thermal anomalies beneath Tristan da Cunha was the starting point for a multi-disciplinary geophysical experiment to acquire passive marine electromagnetic, seismic and bathymetric data within the framework of the SPP-1375 “South Atlantic Margin Processes and Links with onshore Evolution” (SAMPLE) funded by the German Science foundation. The experiment included two expeditions with the German research vessel MARIA S. MERIAN in 2012 and 2013. Between February 2012 and January 2013, a network of 24 ocean bottom seismometers (OBS) from the German DEPAS pool (Deutscher Geräte-Pool für Amphibische Seismologie) and 26 ocean-bottom magneto-telluric stations from GEOMAR Kiel and the University of Tokyo were deployed around the archipelago of Tristan da Cunha.
The seismological stations are equipped with a Güralp CMG-40T wideband seismometer (60 s) incorporated in a titanium pressure housing, a hydrophone, and a GEOLON MCS (Marine Compact Seismocorder) data logger from SEND GmbH Hamburg, Germany. Each sensor channel is sampled at 50 Hz (2 OBS at 100 Hz), preamplifier gain of the hydrophone channel is 4 and 1 for the three seismometer components. The seismometers are connected to a cardanic levelling mechanism, which was activated every 21 days to level the sensors. Based on previous experiments and triangulation of some stations, the accuracy of the positions is estimated to 500 m.
To complement the ocean-bottom network and the existing observatory on Tristan da Cunha (TRIS), two land seismometers and one magnetotelluric station were installed on Nightingale Island located southwest of the main island each of which was equipped with a Güralp-3ESP seismometer (60 s) and an EarthData data logger. As recording parameters, we chose 100 Hz sampling rate and low preamplifier gain (0.4). One of the stations (NIG01) recorded earthquake data for the entire year, while the second station failed after few days due to water damage. Unfortunately, the permanent station TRIS failed also during the experiment.
Related to:
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung; et al. (2017): DEPAS (Deutscher Geräte-Pool für amphibische Seismologie): German Instrument Pool for Amphibian Seismology. Journal of large-scale research facilities JLSRF, 3, https://doi.org/10.17815/jlsrf-3-165
Bonadio, Raffaele; Geissler, Wolfram H; Lebedev, Sergei; Fullea, Javier; Ravenna, Matteo; Celli, Nicolas L; Jokat, Wilfried; Jegen, Marion; Sens-Schönfelder, Christoph; Baba, Kiyoshi (2018): Hot Upper Mantle Beneath the Tristan da Cunha Hotspot From Probabilistic Rayleigh-Wave Inversion and Petrological Modeling. Geochemistry, Geophysics, Geosystems, 19(5), 1412-1428, https://doi.org/10.1002/2017GC007347
Geissler, Wolfram H (2014): Electromagnetic, gravimetric and seismic measurements to investigate the Tristan da Cunha hot spot and its role in the opening of the South Atlantic Ocean (MARKE) - Cruise No. MSM24 - December 27, 2012 - January 21, 2013 - Walvis Bay (Namibia) - Cape Town (South Africa). MARIA S. MERIAN-Berichte, DFG-Senatskommission für Ozeanographie, MSM24, 56 pp, https://doi.org/10.2312/cr_msm24
Geissler, Wolfram H; Jokat, Wilfried; Jegen, Marion; Baba, Kiyoshi (2017): Thickness of the oceanic crust, the lithosphere, and the mantle transition zone in the vicinity of the Tristan da Cunha hot spot estimated from ocean-bottom and ocean-island seismometer receiver functions. Tectonophysics, 716, 33-51, https://doi.org/10.1016/j.tecto.2016.12.013
Jegen-Kulcsar, Marion; Geissler, Wolfram H; Maia, Marcia; Baba, Kiyoshi; Kirk, Henning (2015): TRISTAN: Electromagnetic, gravimetric and seismic measurements to investigate the Tristan da Cunha hot spot and its role in the opening of the South-Atlantic - Cruise No. MSM20/2 - January 17 - February 15, 2012 - Walvis Bay (Namibia) - Recife (Brazil). MARIA S. MERIAN-Berichte, DFG-Senatskommission für Ozeanographie, MSM20/2, 52 pp, https://doi.org/10.2312/cr_msm20_2
Ryberg, Trond; Geissler, Wolfram H; Jokat, Wilfried; Pandey, S (2017): Uppermost mantle and crustal structure at Tristan da Cunha derived from ambient seismic noise. Earth and Planetary Science Letters, 471, 117-124, https://doi.org/10.1016/j.epsl.2017.04.049
Schlömer, Antje; Geissler, Wolfram H; Jokat, Wilfried; Jegen, Marion (2017): Hunting for the Tristan mantle plume – An upper mantle tomography around the volcanic island of Tristan da Cunha. Earth and Planetary Science Letters, 462, 122-131, https://doi.org/10.1016/j.epsl.2016.12.028
Schlömer, Antje; Geissler, Wolfram H; Jokat, Wilfried; Jegen, Marion (2017): Seismicity in the Vicinity of the Tristan Da Cunha Hot Spot: Particular Plate Tectonics and Mantle Plume Presence. Journal of Geophysical Research: Solid Earth, 122(12), 10,427-10,439, https://doi.org/10.1002/2017JB015017
Zhang, Hao; Geissler, Wolfram H; Schmidt-Aursch, Mechita; Bonadio, Raffaele (2022): Crustal and uppermost mantle structure beneath Tristan da Cunha using surface wave phase velocity from horizontal components OBS ambient seismic noise. Geophysical Journal International, 232(2), 1276-1292, https://doi.org/10.1093/gji/ggac390
Project(s):
Marine Geophysics @ AWI (AWI_GeoPhy)
Funding:
German Research Foundation (DFG), grant/award no. 61089689: Priority Programme 1375 SAMPLE: South Atlantic Margin Processes and Links with Onshore Evolution
Coverage:
Median Latitude: -37.329152 * Median Longitude: -12.175519 * South-bound Latitude: -38.901800 * West-bound Longitude: -14.721700 * North-bound Latitude: -35.642900 * East-bound Longitude: -9.687500
Date/Time Start: 2012-01-02T04:05:00 * Date/Time End: 2012-01-29T02:36:00
Minimum ELEVATION: -4169 m a.s.l. * Maximum ELEVATION: -3099 m a.s.l.
Event(s):
1D_TDC01 (MSM20/020-2, MSM24_830-1) * Latitude: -35.924600 * Longitude: -9.687500 * Date/Time Start: 2012-01-22T22:43:00 * Date/Time End: 2012-01-02T04:05:00 * Elevation: -3942.0 m * Location: Tristan da Cunha, South Atlantic Ocean * Method/Device: Ocean bottom seismometer (OBS)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Geissler, Wolfram H | |||
| 2 | Optional event label | Event 2 | Geissler, Wolfram H | |||
| 3 | Project | Project | Geissler, Wolfram H | |||
| 4 | Principal investigator | PI | Geissler, Wolfram H | |||
| 5 | Code | Code | Geissler, Wolfram H | FDSN Network Code | ||
| 6 | Station label | Station | Geissler, Wolfram H | |||
| 7 | Date/time start | Date/time start | Geissler, Wolfram H | Recording | ||
| 8 | Date/time start | Date/time start | Geissler, Wolfram H | Deployment | ||
| 9 | LATITUDE | Latitude | Geissler, Wolfram H | Geocode | ||
| 10 | LONGITUDE | Longitude | Geissler, Wolfram H | Geocode | ||
| 11 | ELEVATION | Elevation | m a.s.l. | Geissler, Wolfram H | Geocode | |
| 12 | Date/time end | Date/time end | Geissler, Wolfram H | Recovery | ||
| 13 | Date/time end | Date/time end | Geissler, Wolfram H | Recording | ||
| 14 | Clock skew | Skew | µs | Geissler, Wolfram H | ||
| 15 | Recorder type | Recorder | Geissler, Wolfram H | |||
| 16 | Recorder, serial number | Recorder SN | Geissler, Wolfram H | |||
| 17 | Seismometer type | Seismometer | Geissler, Wolfram H | |||
| 18 | Seismometer, serial number | Seismometer SN | Geissler, Wolfram H | |||
| 19 | Seismometer gain | Seismometer gain | Geissler, Wolfram H | |||
| 20 | Hydrophone type | Hydrophone | Geissler, Wolfram H | |||
| 21 | Hydrophone, serial number | Hydrophone SN | Geissler, Wolfram H | |||
| 22 | Hydrophone gain | Hydrophone gain | Geissler, Wolfram H | |||
| 23 | Hydrophone polarity | Hydrophone pol | Geissler, Wolfram H | |||
| 24 | Sampling rate | Sampling rate | Hz | Geissler, Wolfram H | ||
| 25 | Cruise/expedition | Expedition | Geissler, Wolfram H | |||
| 26 | Comment | Comment | Geissler, Wolfram H | |||
| 27 | Binary Object | Binary | Geissler, Wolfram H | Auxiliary data | ||
| 28 | Binary Object | Binary | Geissler, Wolfram H | Log file | ||
| 29 | Binary Object | Binary | Geissler, Wolfram H | Raw data |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
484 data points
Data
All files referred to in data matrix can be downloaded in one go as ZIP or TAR. Be careful: This download can be very large! To protect our systems from misuse, we require to sign up for an user account before downloading.
| 1 Event | 2 Event 2 | 3 Project | 4 PI | 5 Code (FDSN Network Code) | 6 Station | 7 Date/time start (Recording) | 8 Date/time start (Deployment) | 9 Latitude | 10 Longitude | 11 Elevation [m a.s.l.] | 12 Date/time end (Recovery) | 13 Date/time end (Recording) | 14 Skew [µs] | 15 Recorder | 16 Recorder SN | 17 Seismometer | 18 Seismometer SN | 19 Seismometer gain | 20 Hydrophone | 21 Hydrophone SN | 22 Hydrophone gain | 23 Hydrophone pol | 24 Sampling rate [Hz] | 25 Expedition | 26 Comment | 27 Binary (Auxiliary data) | 28 Binary (Log file) | 29 Binary (Raw data) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1D_TDC01 | MSM20/020-2, MSM24_830-1 | ISOLDE | W. Geissler | 1D | TDC01 | 2012-01-22T20:06 | 2012-01-22T22:43 | -35.9246 | -9.6875 | -3942 | 2012-01-02T04:05 | 2013-01-02T06:21 | 1199093 | MCS | 60738 | Güralp CMG-40T 60s | T4K84 | 1 | HTI-04-PCA/ULF | 312179 | 4 | Normal | 50 | MSM20-2 / MSM24 | 1D.TDC01.aux | 1D.TDC01.log | 1D.TDC01.mcs | |
| 1D_TDC02 | MSM20/021-2, MSM24_831-1 | ISOLDE | W. Geissler | 1D | TDC02 | 2012-01-22T20:54 | 2012-01-23T05:15 | -36.6687 | -9.9938 | -3636 | 2012-01-02T13:11 | 2012-11-30T17:56 | MCS | 60743 | Güralp CMG-40T 60s | T4M05 | 1 | HTI-04-PCA/ULF | 312092 | 4 | Normal | 50 | MSM20-2 / MSM24 | No skew available | 1D.TDC02.aux | 1D.TDC02.log | 1D.TDC02.mcs | |
| 1D_TDC03 | MSM20/022-2, MSM24_832-1 | ISOLDE | W. Geissler | 1D | TDC03 | 2012-01-22T21:26 | 2012-01-23T10:59 | -37.5922 | -10.3090 | -3358 | 2012-01-02T21:20 | 2013-01-02T22:30 | 1348781 | MCS | 60742 | Güralp CMG-40T 60s | T4M36 | 1 | HTI-04-PCA/ULF | 312130 | 4 | Normal | 50 | MSM20-2 / MSM24 | 1D.TDC03.aux | 1D.TDC03.log | 1D.TDC03.mcs | |
| 1D_TDC04 | MSM20/023-2, MSM24_833-1 | ISOLDE | W. Geissler | 1D | TDC04 | 2012-01-23T09:32 | 2012-01-23T17:27 | -38.3635 | -10.7821 | -3534 | 2012-01-03T07:40 | 2013-01-03T10:15 | 1640156 | MCS | 91107 | Güralp CMG-40T 60s | T4L91 | 1 | HTI-04-PCA/ULF | 312129 | 4 | Normal | 100 | MSM20-2 / MSM24 | 1D.TDC04.aux | 1D.TDC04.log | 1D.TDC04.mcs | |
| 1D_TDC05 | MSM20/024-2, MSM24_842-1 | ISOLDE | W. Geissler | 1D | TDC05 | 2012-01-23T13:39 | 2012-01-24T00:38 | -38.5811 | -11.9621 | -3164 | 2012-01-06T13:38 | 2013-01-06T16:00 | 2429281 | MCS | 60720 | Güralp CMG-40T 60s | T4M16 | 1 | HTI-01-PCA/ULF | 31208205 | 4 | Normal | 50 | MSM20-2 / MSM24 | 1D.TDC05.aux | 1D.TDC05.log | 1D.TDC05.mcs | |
| 1D_TDC06 | MSM20/025-2, MSM24_834-2 | ISOLDE | W. Geissler | 1D | TDC06 | 2012-01-23T20:31 | 2012-01-24T05:44 | -37.7472 | -11.3744 | -3562 | 2012-01-03T18:30 | 2013-01-03T20:05 | 1773843 | MCS | 60725 | Güralp CMG-40T 60s | T4M07 | 1 | HTI-01-PCA/ULF | 31207405 | 4 | Normal | 50 | MSM20-2 / MSM24 | 1D.TDC06.aux | 1D.TDC06.log | 1D.TDC06.mcs | |
| 1D_TDC07 | MSM20/026-2, MSM24_835-1 | ISOLDE | W. Geissler | 1D | TDC07 | 2012-01-23T22:09 | 2012-01-24T10:15 | -36.9082 | -11.2062 | -3791 | 2012-01-04T04:10 | 2013-01-04T06:05 | 2122250 | MCS | 60729 | Güralp CMG-40T 60s | T4K96 | 1 | HTI-01-PCA/ULF | 31208105 | 4 | Inverted | 50 | MSM20-2 / MSM24 | 1D.TDC07.aux | 1D.TDC07.log | 1D.TDC07.mcs | |
| 1D_TDC08 | MSM20/027-2, MSM24_836-2 | ISOLDE | W. Geissler | 1D | TDC08 | 2012-01-24T14:06 | 2012-01-24T15:45 | -36.1323 | -10.8025 | -3951 | 2012-01-04T16:05 | 2013-01-04T17:43 | -847969 | MCS | 60740 | Güralp CMG-40T 60s | T4S17 | 1 | HTI-01-PCA/ULF | 31206405 | 4 | Normal | 50 | MSM20-2 / MSM24 | 1D.TDC08.aux | 1D.TDC08.log | 1D.TDC08.mcs | |
| 1D_TDC09 | MSM20/027-2, MSM24_837-1 | ISOLDE | W. Geissler | 1D | TDC09 | 2012-01-24T17:28 | 2012-01-24T21:52 | -35.6429 | -11.4946 | -4169 | 2012-01-04T23:53 | 2013-01-05T01:50 | 1442281 | MCS | 60735 | Güralp CMG-40T 60s | T4K86 | 1 | HTI-04-PCA/ULF | 312117 | 4 | Inverted | 50 | MSM20-2 / MSM24 | 1D.TDC09.aux | 1D.TDC09.log | 1D.TDC09.mcs | |
| 1D_TDC10 | MSM20/028-2, MSM24_838-1 | ISOLDE | W. Geissler | 1D | TDC10 | 2012-01-24T20:49 | 2012-01-25T01:50 | -36.2762 | -11.9398 | -3713 | 2012-01-05T08:47 | 2013-01-05T10:59 | 1793000 | MCS | 50921 | Güralp CMG-40T 60s | T4K87 | 1 | HTI-04-PCA/ULF | 312142 | 4 | Normal | 50 | MSM20-2 / MSM24 | 1D.TDC10.aux | 1D.TDC10.log | 1D.TDC10.mcs | |
| 1D_TDC11 | MSM20/029-2, MSM24_839-2 | ISOLDE | W. Geissler | 1D | TDC11 | 2012-01-24T13:21 | 2012-01-25T15:57 | -36.8780 | -12.1223 | -3570 | 2012-01-05T16:09 | 2013-01-05T18:48 | 765593 | MCS | 91104 | Güralp CMG-40T 60s | T4M58 | 1 | HTI-01-PCA/ULF | 31206105 | 4 | Normal | 100 | MSM20-2 / MSM24 | 1D.TDC11.aux | 1D.TDC11.log | 1D.TDC11.mcs | |
| 1D_TDC12 | MSM20/030-2, MSM24_840-1 | ISOLDE | W. Geissler | 1D | TDC12 | 2012-01-25T17:21 | 2012-01-25T20:25 | -37.3607 | -11.9020 | -3674 | 2012-01-05T22:52 | 2013-01-06T00:50 | 1501937 | MCS | 60739 | Güralp CMG-40T 60s | T4M30 | 1 | HTI-01-PCA/ULF | 31207905 | 4 | Normal | 50 | MSM20-2 / MSM24 | 1D.TDC12.aux | 1D.TDC12.log | 1D.TDC12.mcs | |
| 1D_TDC14 | MSM20/031-2, MSM24_843-1 | ISOLDE | W. Geissler | 1D | TDC14 | 2012-01-25T21:23 | 2012-01-26T03:14 | -37.9298 | -12.4518 | -3308 | 2012-01-06T19:37 | 2013-01-06T21:22 | 1836625 | MCS | 50907 | Güralp CMG-40T 60s | T4K37 | 1 | HTI-01-PCA/ULF | 31206905 | 4 | Normal | 50 | MSM20-2 / MSM24 | 1D.TDC14.aux | 1D.TDC14.log | 1D.TDC14.mcs | |
| 1D_TDC15 | MSM20/033-2, MSM24_854-1 | ISOLDE | W. Geissler | 1D | TDC15 | 2012-01-25T22:15 | 2012-01-26T11:11 | -38.7528 | -13.0818 | -3184 | 2012-01-13T01:03 | 2013-01-13T02:20 | 2932406 | MCS | 60715 | Güralp CMG-40T 60s | T4M25 | 1 | HTI-04-PCA/ULF | 312107 | 4 | Normal | 50 | MSM20-2 / MSM24 | 1D.TDC15.aux | 1D.TDC15.log | 1D.TDC15.mcs | |
| 1D_TDC16 | MSM20/035-2, MSM24_853-1 | ISOLDE | W. Geissler | 1D | TDC16 | 2012-01-26T14:11 | 2012-01-26T17:25 | -38.9018 | -14.0116 | -3099 | 2012-01-12T13:30 | 2013-01-12T15:34 | 1664625 | MCS | 60728 | Güralp CMG-40T 60s | MKII/TGIN03 | 1 | HTI-04-PCA/ULF | 312141 | 4 | Normal | 50 | MSM20-2 / MSM24 | 1D.TDC16.aux | 1D.TDC16.log | 1D.TDC16.mcs | |
| 1D_TDC18 | MSM20/037-2, MSM24_844-1 | ISOLDE | W. Geissler | 1D | TDC18 | 2012-01-26T21:38 | 2012-01-27T04:08 | -37.5974 | -12.9129 | -3160 | 2012-01-07T04:06 | 2012-11-28T22:14 | MCS | 50930 | Güralp CMG-40T 60s | T4K91 | 1 | HTI-04-PCA/ULF | 312131 | 4 | Normal | 50 | MSM20-2 / MSM24 | No skew available | 1D.TDC18.aux | 1D.TDC18.log | 1D.TDC18.mcs | |
| 1D_TDC19 | MSM20/038-2, MSM24_845-2 | ISOLDE | W. Geissler | 1D | TDC19 | 2012-01-26T20:30 | 2012-01-27T07:27 | -37.2571 | -13.4182 | -3580 | 2012-01-08T01:23 | 2013-01-07T16:48 | 2131752101 | MCS | 60708 | Güralp CMG-40T 60s | T4M44 | 1 | HTI-04-PCA/ULF | 312115 | 4 | Normal | 50 | MSM20-2 / MSM24 | Skew not reliable | 1D.TDC19.aux | 1D.TDC19.log | 1D.TDC19.mcs |
| 1D_TDC20 | MSM20/039-2, MSM24_852-1 | ISOLDE | W. Geissler | 1D | TDC20 | 2012-01-27T10:52 | 2012-01-27T18:08 | -38.2744 | -14.7217 | -3224 | 2012-01-12T05:28 | 2013-01-12T07:31 | 1738750 | MCS | 50906 | Güralp CMG-40T 60s | T4K38 | 1 | HTI-04-PCA/ULF | 312127 | 4 | Normal | 50 | MSM20-2 / MSM24 | 1D.TDC20.aux | 1D.TDC20.log | 1D.TDC20.mcs | |
| 1D_TDC22 | MSM20/041-2, MSM24_850-1 | ISOLDE | W. Geissler | 1D | TDC22 | 2012-01-27T14:47 | 2012-01-28T06:12 | -37.4812 | -14.5486 | -3342 | 2012-01-11T03:09 | 2013-01-11T04:44 | 1128406 | MCS | 60723 | Güralp CMG-40T 60s | T4M49 | 1 | HTI-01-PCA/ULF | 31207805 | 4 | Normal | 50 | MSM20-2 / MSM24 | 1D.TDC22.aux | 1D.TDC22.log | 1D.TDC22.mcs | |
| 1D_TDC23 | MSM20/042-1, MSM24_849-1 | ISOLDE | W. Geissler | 1D | TDC23 | 2012-01-27T15:39 | 2012-01-28T11:01 | -36.6469 | -14.2836 | -3672 | 2012-01-10T20:40 | 2013-01-10T22:35 | 1643406 | MCS | 60724 | Güralp CMG-40T 60s | T4M03 | 1 | HTI-04-PCA/ULF | 312161 | 4 | Normal | 50 | MSM20-2 / MSM24 | 1D.TDC23.aux | 1D.TDC23.log | 1D.TDC23.mcs | |
| 1D_TDC26 | MSM20/046-2, MSM24_846-1 | ISOLDE | W. Geissler | 1D | TDC26 | 2012-01-28T13:51 | 2012-01-29T02:36 | -36.9952 | -12.6794 | -3503 | 2012-01-09T02:59 | 2013-01-09T04:57 | 1748906 | MCS | 50902 | Güralp CMG-40T 60s | T4M40 | 1 | HTI-01-PCA/ULF | 31205605 | 4 | Normal | 50 | MSM20-2 / MSM24 | 1D.TDC26.aux | 1D.TDC26.log | 1D.TDC26.mcs |