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Chapter 19: Fracture Imaging and Saline Tracer Monitoring by Crosshole Borehole Radar

By
Hui Zhou
Hui Zhou
Ocean University of China, No.5 Yushan Road, Qingdao, Shandong, People’s Republic of China (formerly with Tohoku University). E-mail: huizhou@ouc.edu.cn.
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John W. Lane
John W. Lane
U.S. Geological Survey, 11 Sherman Place, U-5015, Storrs Mansfield, CT 06269 USA.
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Motoyuki Sato
Motoyuki Sato
Center for Northeast Asian Studies, Tohoku University, Sendai 980-8576, Japan. E-mail: sato@cneas.tohoku.ac.jp.
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Published:
January 01, 2005

Introduction

Crosshole electromagnetic techniques have been studied for detection and imaging subsurface anomalies. The use of higher frequency, i.e., radar, has high resolution, and has been used for imaging anomalies having high contrasts with the host rock. For example, Litle et al. (1979) and Lee et al. (1989) used crosshole radar to detect voids or tunnels, Lager and Lytle (1977) used tomography to visualize trace flow, and Park et al. (1998) used tomography for imaging voids. Borehole radar tomographic analysis has been applied to various other fields (Olsson et al., 1992; Mathisen et al., 1995; Lane et al., 1996; Wright et al., 1998). In most cases, crosshole tomography enables us to characterize subsurface media between two boreholes very well.

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Contents

Investigations in Geophysics

Near-Surface Geophysics

Dwain K. Butler
Dwain K. Butler
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Society of Exploration Geophysicists
Volume
13
ISBN electronic:
9781560801719
Publication date:
January 01, 2005

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