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Searles Lake
Searles Lake is an endorheic dry lake in the Mojave Desert of San Bernardino County, California, with the mining community, Trona on its western shore. The evaporite basin is approximately long and at its widest point, yielding 1.7 million tons annually of industrial minerals within the basin to the Searles Valley Minerals mining operations. Searles Lake is bounded by the Argus and Slate Mountains.
==Geology==
The stratigraphic record at Searles Lake shows that it once held brackish water as deep as . Fluctuations in lake levels correspond to the advances and retreats of glaciers in the Sierra Nevada Range. Thirty major lake levels occurred during the last 150,000 years, represented by a sequence of salt and mud beds. The precipitation of minerals occurred during long periods of lake evaporation.
The lake is home to the Trona Pinnacles, a spectacular geologic tufa formation and a National Natural Landmark.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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