SEISMIC-REFLECTION STUDY OF A SHALLOW AQUIFER DURING A PUMPING TEST

被引：58

作者：

BIRKELO, BA ^{[1
]}

STEEPLES, DW ^{[1
]}

MILLER, RD ^{[1
]}

SOPHOCLEOUS, M ^{[1
]}

机构：

[1] UNIV KANSAS,KANSAS GEOL SURVEY,GEOHYDROL SECT,LAWRENCE,KS 66046

来源：

GROUND WATER | 1987年 / 25卷 / 06期

关键词：

GEOPHYSICS - Seismic - SEISMIC WAVES - Reflection - WATER WELLS - Testing;

D O I：

10.1111/j.1745-6584.1987.tb02211.x

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Seismic reflection surveys were used to follow the drawdown in a shallow aquifer during a pumping test. Using several analog low-cut filters and one quarter -m geophone spacings, 335 Hz reflections were obtained from the top of the saturated zone 2. 7 m deep. The reflections moved down in time as the saturated zone dropped in response to pumping. The dominant frequency and bandwidth both dropped during pumping indicating a more diffuse refecting boundary. Slight pullups of reflectors at specific locations on the CDP sections may indicate a higher elevation of the capillary fringe and therefore finer sediments in those locations. Other potential applications of this technique include mapping cones of depression and detecting and delineating perched-water tables.

引用

页码：703 / 709

页数：7

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