3D GRAVITY INVERSION OF THE CHESHIRE BASIN

被引：15

作者：

ABDOH, A ^{[1
]}

COWAN, D ^{[1
]}

PILKINGTON, M ^{[1
]}

机构：

[1] GEOL SURVEY CANADA, DIV GEOPHYS, OTTAWA K1A 0Y3, ONTARIO, CANADA

来源：

GEOPHYSICAL PROSPECTING | 1990年 / 38卷 / 08期

关键词：

D O I：

10.1111/j.1365-2478.1990.tb01887.x

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：

Three‐dimensional inverse gravity modelling is used to determine the structure of the Carboniferous sediments underlying the Jurassic and Permo‐Triassic formations in the Cheshire Basin. The gravity effect of the Jurassic and Permo‐Triassic rocks was first removed from the observations and the resulting residual gravity field was then inverted to map variations in depth of the Carboniferous formations. The inversion technique is performed in the frequency domain, enabling rapid computation of solutions for large gridded data sets. Evaluation of results shows that there is good agreement between calculated and observed values, with interpreted depths to the base of the Carboniferous in excess of 6 km. Gravity inversion results also delineate areas of faulting on the south‐western and eastern edges of the basin. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：999 / 1011

页数：13

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