Some properties and structure of the crystalline crust from superdeep drilling data (SG-3, SG-4, KTB)

Title:

Some properties and structure of the crystalline crust from superdeep drilling data (SG-3, SG-4, KTB)

Creator:

Gobratsevich, Felix F.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:956466f1-9965-4b05-a12c-cc0e9eb1f301
uuid:956466f1-9965-4b05-a12c-cc0e9eb1f301
issn:1214-9705

Subject:

Geologie. Meteorologie. Klimatologie, geofyzika, geodynamika, geophysics, geodynamics, anisotropy, crystalline crust, density, structure, rock properties, superdeep boreholes, velocity, 7, and 551

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

Among the programmes aimed at developing a standard model for properties and state of the Earth’s crystalline crust, those dealing with drilling the Kola (SG-3), Ural (SG-4) and German (KTB) superdeep boreholes yielded the most interesting results. No marked depth dependence of rock volume density and seismic wave velocities was observed in the sections of SG-3 and SG-4. A new result of the investigations is the discovery of strongly anisotropic rocks in the SG-3, SG-4 and KTB sections. In the massifs of the Kola and German superdeep boreholes such rocks constitute the majority of the drilled sections. The presence of the velocity anisotropy as well as the complex structure of the rocks composing crystalline metamorphosed sequences greatly hamper the interpretation of the results obtained from the seismic survey conducted at the surface., Felix F. Gobratsevich., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Acta geodynamica et geomaterialia : | 2008 Volume:5 | Number:4 (152)

Harvested from:

CDK

Metadata only:

false