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摘要:
十八世纪中、后叶,由于盖塔尔、德马勒（Nicholas Desmarest 1725一1815）、索修尔（Horace-Benediet de Saussure 1740—1799）和帕拉斯（Pierre Simon Pallas 1741一1811）等人的工作,地质资料迅速积累,使得理论概括成为可能,一时各种“地球学说”纷纭而出,其中魏纳及其学说尤为引人注目.
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