DENSITY AND VELOCITY MODEL OF METAMORPHIC ROCK PROPERTIES IN THE UPPER AND MIDDLE CRYSTALLINE CRUST IN THE KOLA SUPERDEEP BOREHOLE (SG-3) SECTION

被引：0

作者：

Gorbatsevich, Feliks F. ^{[1
]}

机构：

[1] RAS, Kola Sci Ctr, Inst Geol, Apatity, Russia

来源：

ACTA GEODYNAMICA ET GEOMATERIALIA | 2014年 / 11卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

Crystalline crust; Density; Elastic anisotropy; Superdeep borehole;

D O I：

暂无

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Using the experimental and calculated data as the base, a model for a depth dependence of density, compression and shear wave velocities along the Kola superdeep borehole (SG-3) section was developed down to a depth of similar to 25 km. The variations of the density, compression and shear wave velocities are mainly caused by the changes in the rock mineral composition. The relative reduction in the velocities of compression and shear waves with depth under the influence of increasing pressure and temperature in the range of 5-25 km is about 2 %. The observed increase in seismic velocity with depth may be due to changes in the degree of metamorphic transformation of rocks.

引用

页码：165 / 174

页数：10

共 31 条

[1] [Anonymous], 2002, INT HDB EARTHQUA A B
[2] [Anonymous], 1975, REFERENCE BOOK CADST, P279
[3] [Anonymous], 1991, ARCH COMPL KSDB SECT, P186
[4] [Anonymous], 1977, NEW CATALOGUE SEVERE, P563
[5] Belikov B.P., 1970, ELASTIC PROPERTIES R, P274
[6] SEISMIC VELOCITY STRUCTURE AND COMPOSITION OF THE CONTINENTAL-CRUST - A GLOBAL VIEW
CHRISTENSEN, NI
MOONEY, WD
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 1995, 100 (B6) : 9761 - 9788
[7] An analysis of shear waves observed in VSP data from the superdeep well at Kola, Russia
Digranes, P
Kristoffersen, Y
Karajev, N
[J]. GEOPHYSICAL JOURNAL INTERNATIONAL, 1996, 126 (02) : 545 - 554
[8] Druzhinin V.S., 1999, OTECHESTVENNAYA GEOL, P42
[9] The German Continental Deep Drilling Program KTB: Overview and major results
Emmermann, R
Lauterjung, J
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 1997, 102 (B8) : 18179 - 18201
[10] Properties of some rocks from the section of the Kola ultradeep borehole as a function of the P-T parameters
Golovataya, O. S.
Gorbatsevich, F. F.
Kern, H.
Popp, T.
[J]. IZVESTIYA-PHYSICS OF THE SOLID EARTH, 2006, 42 (11) : 865 - 876

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