a Laboratory Investigation of the Induced Polarization of the Triassic Sherwood Sandstone of Lancashire and its Hydrogeological APPLICATIONS
a Laboratory Investigation of the Induced Polarization of the Triassic Sherwood Sandstone of Lancashire and its Hydrogeological APPLICATIONS
复制标题
兰开夏三叠纪舍伍德砂岩诱发极化的实验室研究及其水文地质应用
DOI：
10.1111/j.1365-2478.1985.tb00424.x
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发表时间：
1985
影响因子：
2.6
通讯作者：
D. H. Griffiths
中科院分区：
文献类型：
--
作者：
M. Olorunfemi;D. H. Griffiths
饱和舍伍德砂岩的时域激发极化（IP）与粒间渗透率和基质电导率显著相关，但仅在低电解质浓度（< 500 p.p.m. NaCl）下。随着电解质阳离子的化合价的增加，砂岩IP的幅度增加是明显的，但仅发生在中间浓度下，即，在100和2500 p.p.m.之间。地面IP和电阻率测深测量，辅以实验室测量数据，可用于估计地下水电导率，从而估计中度至重度含盐砂岩含水层中的盐度。
The time-domain induced polarization (IP) of saturated Sherwood Sandstone correlates significantly with the intergranular permeability and the matrix conductivity but only at low electrolyte concentrations (< 500 p.p.m. NaCl). An increase in the magnitude of sandstone IP with increase in the valence of the electrolyte cation is pronounced but occurs only at intermediate concentrations, i.e., between 100 and 2500 p.p.m. Surface IP and resistivity depth sounding measurements, supplemented by data from laboratory measurements, can be used to estimate the groundwater conductivity and hence the salinity in a moderate to strongly saline sandstone aquifer.