Three-dimensional inversion of induced polarization data from simulated waste

被引：21

作者：

Weller, A

Frangos, W

Seichter, M

机构：

[1] Tech Univ Clausthal, Inst Geophys, D-38678 Clausthal Zellerfeld, Germany

[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA

[3] Tech Univ Carolo Wilhelmina Braunschweig, Inst Geophys & Meteorol, D-38106 Braunschweig, Germany

来源：

JOURNAL OF APPLIED GEOPHYSICS | 1999年 / 41卷 / 01期

关键词：

electrical resistivity; geoelectrical prospection; induced polarization; inversion algorithm;

D O I：

10.1016/S0926-9851(98)00036-6

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The Idaho National Laboratory (INEL) Cold Test Pit (CTP) has been carefully constructed to simulate buried hazardous waste sites. An induced polarization (IP) survey of the CTP shows a very strong polarization and a modest resistivity response associated with the simulated waste. A three-dimensional (3-D) inversion algorithm based on the simultaneous iterative reconstruction technique (SIRT) and finite difference forward modelling has been applied to generate a subsurface model of complex resistivity. The lateral extents of the waste zone are well resolved. Limited depth extent is recognized, but the bottom of the waste appears too deep. With a modelling experiment, the intrinsic polarizability of the waste material is determined. Since IP is a technique for detection of diffuse occurrences of metallic material, this method holds promise as a method to distinguish buried waste from conductive soil material. (C) 1949 Elsevier Science B.V. All rights reserved.

引用

页码：31 / 47

页数：17

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