Laptev Sea Rift Seismological Network (SIOLA) Part I
Abstract The Laptev Sea region is one of the very few places on Earth where mid-ocean spreading centres continue into continental rift zones. The Gakkel Ridge, the active spreading centre in the Eurasia Basin of the Arctic Ocean, is characterized by well-defined seismicity close to its axial graben....
Main Authors: | , , , , , , , , |
---|---|
Other Authors: | , , , , , , , , , |
Format: | Dataset |
Language: | English |
Published: |
GFZ Data Services
2020
|
Subjects: | |
Online Access: | https://doi.org/10.14470/3O7561738646 |
id |
ftgfzpotsdamdata:oai:doidb.wdc-terra.org:7035 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
GFZ Data Services (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdamdata |
language |
English |
topic |
Broadband seismic waveforms Seismic monitoring temporary local seismic network Arctic Siberia continental rifting Laptev Sea Siberian Craton Verkhoyansk Fold-and-Thrust Belt EARTH SCIENCE > SOLID EARTH In Situ/Laboratory Instruments > Magnetic/Motion Sensors > Seismometers In Situ Land-based Platforms > GEOPHYSICAL STATIONS/NETWORKS In Situ Land-based Platforms > GEOPHYSICAL STATIONS/NETWORKS > SEISMOLOGICAL STATIONS |
spellingShingle |
Broadband seismic waveforms Seismic monitoring temporary local seismic network Arctic Siberia continental rifting Laptev Sea Siberian Craton Verkhoyansk Fold-and-Thrust Belt EARTH SCIENCE > SOLID EARTH In Situ/Laboratory Instruments > Magnetic/Motion Sensors > Seismometers In Situ Land-based Platforms > GEOPHYSICAL STATIONS/NETWORKS In Situ Land-based Platforms > GEOPHYSICAL STATIONS/NETWORKS > SEISMOLOGICAL STATIONS Geissler, Wolfram Shibaev, Sergey Krüger, Frank Baranov, Boris Haberland, Christian Tsukanov, Nikolai Ploetz, Aline Vollmer, Daniel Pravkin, Sergey Laptev Sea Rift Seismological Network (SIOLA) Part I |
topic_facet |
Broadband seismic waveforms Seismic monitoring temporary local seismic network Arctic Siberia continental rifting Laptev Sea Siberian Craton Verkhoyansk Fold-and-Thrust Belt EARTH SCIENCE > SOLID EARTH In Situ/Laboratory Instruments > Magnetic/Motion Sensors > Seismometers In Situ Land-based Platforms > GEOPHYSICAL STATIONS/NETWORKS In Situ Land-based Platforms > GEOPHYSICAL STATIONS/NETWORKS > SEISMOLOGICAL STATIONS |
description |
Abstract The Laptev Sea region is one of the very few places on Earth where mid-ocean spreading centres continue into continental rift zones. The Gakkel Ridge, the active spreading centre in the Eurasia Basin of the Arctic Ocean, is characterized by well-defined seismicity close to its axial graben. In contrast below the Laptev Sea Shelf, which consists of a series of sediment filled grabens (500 km wide, 700 km long), only more diffuse seismic activity is observed. The pre-rift basement in the Laptev Sea is most probably formed by Late-Paleozoic and Late-Mesozoic fold belts. The Laptev Rift Basin is filled with Upper Cretaceous and Cenozoic sediments of variable thickness (1.5 to 14 km). The westernmost limit of seismicity is located close to edge of thick lithosphere of the Siberian Shield, which indicates some structural control on the recent tectonic activity. Focal depths are mainly less than 25 km (continent) and less than 10 km (ocean). Sparse observations of upper mantle earthquakes are under debate. The pole of rotation is very close to the study area, most probably to the south of Lena delta. Existing data indicate changes between compressional and extensional tectonic phases over short distances. This might be a consequence of the fact that the pole of rotation is close to our study area. The Khatanga-Lomonosov Shear Zone marks the border between the Gakkel Ridge and Laptev Sea Rift System, but its nature and extent are debated. Crustal extension seems to be concentrated in the eastern Laptev Sea area. Fault plane solutions are sparse and mostly not well determined to describe the movements in greater detail. Thus, with this project we intend to investigate details on tectonic movements in the Laptev Sea to better describe this amagmatic rifting and its consequences in an Arctic and global context. In general, we intend to increase the number of seismological stations for monitoring local earthquakes in the Laptev Sea/Lena delta region to fulfil the following objectives: (1) Location of ... |
author2 |
Deutsches GeoForschungsZentrum GFZ GEOFON Data Centre geofon@gfz-potsdam.de Geophysical Instrument Pool Potsdam (GIPP) Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany Yakutsk Branch Federal Research Centre Geophysical Survey, Russian Academy of Sciences, Yakutia, Russian Federation University of Potsdam, Potsdam, Germany P.P. Shirshov Institute of Oceanology of the Russian Academy of Sciences, Moscow, Russian Federation GFZ German Research Centre for Geoscience Helmholtz Centre Potsdam, Potsdam, Germany Arctic and Antarctic Research Institute, St. Petersburg, Russian Federation |
format |
Dataset |
author |
Geissler, Wolfram Shibaev, Sergey Krüger, Frank Baranov, Boris Haberland, Christian Tsukanov, Nikolai Ploetz, Aline Vollmer, Daniel Pravkin, Sergey |
author_facet |
Geissler, Wolfram Shibaev, Sergey Krüger, Frank Baranov, Boris Haberland, Christian Tsukanov, Nikolai Ploetz, Aline Vollmer, Daniel Pravkin, Sergey |
author_sort |
Geissler, Wolfram |
title |
Laptev Sea Rift Seismological Network (SIOLA) Part I |
title_short |
Laptev Sea Rift Seismological Network (SIOLA) Part I |
title_full |
Laptev Sea Rift Seismological Network (SIOLA) Part I |
title_fullStr |
Laptev Sea Rift Seismological Network (SIOLA) Part I |
title_full_unstemmed |
Laptev Sea Rift Seismological Network (SIOLA) Part I |
title_sort |
laptev sea rift seismological network (siola) part i |
publisher |
GFZ Data Services |
publishDate |
2020 |
url |
https://doi.org/10.14470/3O7561738646 |
op_coverage |
100.0 160.0 80.0 67.5 Siberia |
long_lat |
ENVELOPE(90.000,90.000,87.000,87.000) ENVELOPE(133.400,133.400,67.544,67.544) ENVELOPE(80.000,80.000,87.000,87.000) |
geographic |
Arctic Arctic Ocean Laptev Sea Gakkel Ridge Verkhoyansk Eurasia Basin |
geographic_facet |
Arctic Arctic Ocean Laptev Sea Gakkel Ridge Verkhoyansk Eurasia Basin |
genre |
Arctic Arctic Ocean khatanga laptev Laptev Sea lena delta Siberia |
genre_facet |
Arctic Arctic Ocean khatanga laptev Laptev Sea lena delta Siberia |
op_relation |
doi:10.2312/BzPM_0709_2017 doi:10.2312/BzPM_0725_2018 http://dx.doi.org/10.14470/3O7561738646 doi:10.14470/3O7561738646 |
op_rights |
embargoed access https://vocabularies.coar-repositories.org/access_rights/c_f1cf/ Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.14470/3O7561738646 https://doi.org/10.2312/BzPM_0709_2017 https://doi.org/10.2312/BzPM_0725_2018 |
_version_ |
1766331238814056448 |
spelling |
ftgfzpotsdamdata:oai:doidb.wdc-terra.org:7035 2023-05-15T14:59:06+02:00 Laptev Sea Rift Seismological Network (SIOLA) Part I Geissler, Wolfram Shibaev, Sergey Krüger, Frank Baranov, Boris Haberland, Christian Tsukanov, Nikolai Ploetz, Aline Vollmer, Daniel Pravkin, Sergey Deutsches GeoForschungsZentrum GFZ GEOFON Data Centre geofon@gfz-potsdam.de Geophysical Instrument Pool Potsdam (GIPP) Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany Yakutsk Branch Federal Research Centre Geophysical Survey, Russian Academy of Sciences, Yakutia, Russian Federation University of Potsdam, Potsdam, Germany P.P. Shirshov Institute of Oceanology of the Russian Academy of Sciences, Moscow, Russian Federation GFZ German Research Centre for Geoscience Helmholtz Centre Potsdam, Potsdam, Germany Arctic and Antarctic Research Institute, St. Petersburg, Russian Federation 100.0 160.0 80.0 67.5 Siberia 2020 ~200G .mseed XML https://doi.org/10.14470/3O7561738646 en eng GFZ Data Services doi:10.2312/BzPM_0709_2017 doi:10.2312/BzPM_0725_2018 http://dx.doi.org/10.14470/3O7561738646 doi:10.14470/3O7561738646 embargoed access https://vocabularies.coar-repositories.org/access_rights/c_f1cf/ Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode CC-BY Broadband seismic waveforms Seismic monitoring temporary local seismic network Arctic Siberia continental rifting Laptev Sea Siberian Craton Verkhoyansk Fold-and-Thrust Belt EARTH SCIENCE > SOLID EARTH In Situ/Laboratory Instruments > Magnetic/Motion Sensors > Seismometers In Situ Land-based Platforms > GEOPHYSICAL STATIONS/NETWORKS In Situ Land-based Platforms > GEOPHYSICAL STATIONS/NETWORKS > SEISMOLOGICAL STATIONS Dataset Seismic Network 2020 ftgfzpotsdamdata https://doi.org/10.14470/3O7561738646 https://doi.org/10.2312/BzPM_0709_2017 https://doi.org/10.2312/BzPM_0725_2018 2023-02-13T00:34:10Z Abstract The Laptev Sea region is one of the very few places on Earth where mid-ocean spreading centres continue into continental rift zones. The Gakkel Ridge, the active spreading centre in the Eurasia Basin of the Arctic Ocean, is characterized by well-defined seismicity close to its axial graben. In contrast below the Laptev Sea Shelf, which consists of a series of sediment filled grabens (500 km wide, 700 km long), only more diffuse seismic activity is observed. The pre-rift basement in the Laptev Sea is most probably formed by Late-Paleozoic and Late-Mesozoic fold belts. The Laptev Rift Basin is filled with Upper Cretaceous and Cenozoic sediments of variable thickness (1.5 to 14 km). The westernmost limit of seismicity is located close to edge of thick lithosphere of the Siberian Shield, which indicates some structural control on the recent tectonic activity. Focal depths are mainly less than 25 km (continent) and less than 10 km (ocean). Sparse observations of upper mantle earthquakes are under debate. The pole of rotation is very close to the study area, most probably to the south of Lena delta. Existing data indicate changes between compressional and extensional tectonic phases over short distances. This might be a consequence of the fact that the pole of rotation is close to our study area. The Khatanga-Lomonosov Shear Zone marks the border between the Gakkel Ridge and Laptev Sea Rift System, but its nature and extent are debated. Crustal extension seems to be concentrated in the eastern Laptev Sea area. Fault plane solutions are sparse and mostly not well determined to describe the movements in greater detail. Thus, with this project we intend to investigate details on tectonic movements in the Laptev Sea to better describe this amagmatic rifting and its consequences in an Arctic and global context. In general, we intend to increase the number of seismological stations for monitoring local earthquakes in the Laptev Sea/Lena delta region to fulfil the following objectives: (1) Location of ... Dataset Arctic Arctic Ocean khatanga laptev Laptev Sea lena delta Siberia GFZ Data Services (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Arctic Arctic Ocean Laptev Sea Gakkel Ridge ENVELOPE(90.000,90.000,87.000,87.000) Verkhoyansk ENVELOPE(133.400,133.400,67.544,67.544) Eurasia Basin ENVELOPE(80.000,80.000,87.000,87.000) |