Grus (geology)

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Grus sand and granitoid it derived from

Grus is an accumulation of angular, coarse-grained fragments (particles of sand and gravel) resulting from the granular disintegration (by the processes of chemical weathering and mechanical weathering) of crystalline rocks (most notably granitoids) generally in an arid or semiarid region.[1] Grus sand, when cemented into a sandstone, will form an arkose.

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References[edit]

  1. ^ Bates and Jackson, Dictionary of Geological Terms, 3rd Ed.