When salty mud intrudes into the layer, the reduction of water layer is small, but the reduction of oil layer is great. This will form a low resistivity oil layer.

盐水泥浆侵入时，水层电阻率降低较小而油层电阻率大为降低，因此形成低阻油层。

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So they collected mud from California's Mono Lake, where the waters are naturally salty, and laced with arsenic.

因此他们从加利福尼亚的莫诺湖收集了一些泥土。莫诺湖水天然带咸并含砷。

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