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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Delhi-Hardwar Ridge and surrounding basement structure - Some inferences from deep resistivity sounding measurements
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Delhi-Hardwar Ridge and surrounding basement structure - Some inferences from deep resistivity sounding measurements

机译：德里-哈里瓦岭和周围地下室结构-深度电阻率测深的一些推断

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摘要

The hitherto unknown lateral extension of the concealed Delhi-Hardwar Ridge (DHR) towards the east in the Palwal sub-basin of India is inferred from deep resistivity sounding measurements. The resistivity of the ridge is found to be more than 3000 Ohm.m, which is distinct in contrast to the sediment and basement resistivity. The depth of the ridge is estimated to be of the order of 600-800 m below ground level. Analysis of resistivity data across the ridge clearly shows that the basement dips towards the ridge and several depressions within the basement are not uncommon. Further, a significant lateral variation in resistivity of Neogene sediments in and around the DHR indicates postdepositional tectonic activity within the sub-basin. Basement depths estimated compare well with the interpreted depths from aeromagnetic data.
机译：从深层电阻率测深可以推断出，印度帕尔瓦尔次盆地东部的隐蔽的德里-哈德瓦里奇（DHR）迄今尚无横向扩展。发现脊的电阻率大于3000 Ohm.m，这与沉积物和基底的电阻率截然不同。估计山脊的深度在地面以下约600-800 m。对整个山脊电阻率数据的分析清楚地表明，地下室向山脊倾斜，并且地下室中的一些凹陷并不少见。此外，DHR内和周围的新近纪沉积物的电阻率横向变化显着，表明该次盆地内有沉积后构造活动。估计的地下室深度与从航空磁性数据得出的解释深度很好地比较。

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