Processed seismic data of Cruise BGR 1993
Description
In September 1993, the Federal Institute for Geoscience and Natural Resources (BGR) has carried out in cooperation with Sevmorneftegeofizika (SMNG), Murmansk a 2D-seismic survey of the eastern part of the Laptev Sea shelf. The data format is Society of Exploration Geophysicists SEG Y. During the survey with a total length of 3189 km the 70 km wide New Siberian Basin and two other basins were mapped. In the central part of the New Siberian Basin, a Tertiary sediment thickness of more than 4 km overlying older sediments was observed. Further to the east, a large area covered by lava flows of unknown thickness was investigated. There are no indications of a propagation of real seafloor spreading into the Laptev Shelf and thus the Asian continental crust. Therefore seafloor spreading seems impossible at total spreading rates below 0.7 cm/year, at least for crust of the character which is present here.
Resources
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Description |
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https://download.bgr.de/bgr/marineseismik/BGR93/shp/BGR93.zip |
Tags
- geologie
- laptev-see
- seismik
- seismics
- zweidimensionale-reflektionsseismik
- laptev-sea
- two-dimensional-seismic-reflection
- mssp