EFFECTIVE Q-DETERMINATION USING FREQUENCY METHODS ON BIRPS DATA

被引：22

作者：

HOBBS, RW

机构：

来源：

TECTONOPHYSICS | 1990年 / 173卷 / 1-4期

基金：

英国自然环境研究理事会;

关键词：

D O I：

10.1016/0040-1951(90)90200-R

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：

An investigation to determine Q for compressional waves from marine reflection Seismic records is presented. The spectral ratio method is used to determine values for the lower crust. Results from spectral modelling from a known synthetic source wavelet are used to give minimum estimates for the whole crust. The effective Q for the reflective lower crust around Britain is found to be 500 ± 200 which is consistent with laboratory results for dry rocks and is probably too large to allow significant amounts of fluid to be present. © 1990.

引用

页码：25 / 30

页数：6

共 15 条

[1]

Aki K, 1980, QUANTITATIVE SEISMOL, V2

[2]

Bath M, 1984, SPECTRAL ANAL GEOPHY

[3]

CLOWES RM, 1970, J GEOPHYS RES, V75, P669

[4]

ENGELHARD L, 1989, IN PRESS GEOPHYS J

[5] THE DEEP-STRUCTURE OF NORTHERN ENGLAND AND THE IAPETUS SUTURE ZONE FROM BIRPS DEEP SEISMIC-REFLECTION PROFILES [J].

FREEMAN, B ;

KLEMPERER, SL ;

HOBBS, RW .

JOURNAL OF THE GEOLOGICAL SOCIETY, 1988, 145 :727-+

[6] COMPARISON OF METHODS TO DETERMINE Q IN SHALLOW MARINE-SEDIMENTS FROM VERTICAL REFLECTION SEISMOGRAMS [J].

JANNSEN, D ;

VOSS, J ;

THEILEN, F .

GEOPHYSICAL PROSPECTING, 1985, 33 (04) :479-497

[7]

KAMPFMANN K, 1986, ABSORPTION SEISMIC W, P277

[8]

MATTHEWS DH, 1986, SPEC PUBL GEOL SOC L, V24, P11

[9]

PEDDY CP, 1987, ANN GEOPHYS B-TERR P, V5, P331

[10] STATISTICAL MODELING OF LOWER-CRUSTAL REFLECTIONS [J].

RAYNAUD, BA .

GEOPHYSICAL JOURNAL-OXFORD, 1988, 95 (01) :111-121

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