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Global Geology 2016, 19(2) 117-124 DOI:
ISSN: 1673-9736 CN: 22-1371/P |
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Subsurface sandstone mapping by combination of GP�� and E��T method |
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FANG Yuantao, FENG Xuan, LU Qi, Enhedelihai, CAO Song and YOU Zhixin |
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College of Geo- Exploration Science and Technology��Jilin University��Changchun 130026��China |
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Abstract��
It is important to know the shape and distribution of sandstone bodies in the subsurface when forma- tion and migration of a dune model are determined�� The information plays a significant role in identification of the continental oil and gas accumulation�� In this study��the combination of ground penetrating radar (GP��) and electrical resistivity tomography method (E��T) is used in mapping the distribution of sandstone bodies in Yanchang Formation�� Six GP�� profiles and seven E��T profiles are used to analysis�� GP�� data show clear re- flections from the top interface of sandstones�� E��T data show a continuous high resistivity anomaly correspon- ding to the sandstone body�� Combined the reconstructed 3D images by GP�� and E��T�� the spatial distribution of sandstone bodies is described�� |
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Keywords��
sandstone distribution
Yanchang Formation
outcrops
Ground Penetrating ��adar
electrical re- sistivity tomography
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Received Revised Online: |
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