作者: P. H. Masson
DOI: 10.1306/D426980F-2B26-11D7-8648000102C1865D
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摘要: ABSTRACT Gypsum in the form of crystals and rosettes selenite has been found subsurface clays sands Laguna Madre mudflats southwest Texas. The habit is unusual, dominant crystallographic forms are (111) (102). manner which grow larger at depth become lens-like shape also interest. It concluded that gypsum precipitates from highly saline sea water periodically moves windblown sheets across surface sinks into underlying sediments.