CRUSTAL TOMOGRAPHY OF THE CENTRAL KENYA RIFT

被引：12

作者：

RITTER, JRR ^{[1
]}

ACHAUER, U ^{[1
]}

机构：

[1] ECOLE & OBSERV PHYS GLOBE STRASBOURG,F-67084 STRASBOURG,FRANCE

来源：

TECTONOPHYSICS | 1994年 / 236卷 / 1-4期

关键词：

D O I：

10.1016/0040-1951(94)90181-3

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：

During the Kenya Rift International Seismic Project 1990 (KRISP90) experiment the shots of the seismic refraction programme were recorded by a two-dimensional teleseismic network. This was installed in the central part of the Kenya Rift and on its shoulders, from Lake Baringo in the north to Lake Naivasha in the south. P-wave first arrivals were used to determine lateral crustal velocity heterogeneities with a three-dimensional inversion programme. Mainly high-velocity zones were found which can be correlated with other geophysical anomalies and geological features. This comparison shows that the high-velocity bodies found within the crust are likely indicators for mafic cumulates or magma chambers. These evolved during the major magmatic episodes which are typical indicators for an active rift.

引用

页码：291 / 304

页数：14

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[21] Crustal Architecture of the Inverted Central Lapland Rift Along the HUKKA 2007 Profile [J].

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[23] APPARENT Q FOR UPPER CRUSTAL ROCKS OF THE CENTRAL RIO-GRANDE RIFT [J].

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TREHU, A .

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[27] MONITORING RECENT CRUSTAL MOVEMENTS IN THE KENYA RIFT-VALLEY BY GLOBAL POSITIONING SYSTEM (GPS) - A PROPOSAL [J].

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Nyblade, AA ;

Julia, J ;

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Simiyu, S .

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[30] VEGETATION RESPONSE TO CLIMATIC-CHANGE IN CENTRAL RIFT-VALLEY, KENYA [J].

MAITIMA, JM .

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