In 1811 he moved to Valognes (Manche), pursuing botanical field research and the nascent field of geology, and searching out ancient written materials that cast light on local history, while he undertook, from 1814 onwards, to compile a pioneering inventory of some four or five hundred churches of La Manche (Noell 2005); some of these materials were published as Voyage archéologique dans la Manche (1818–1820).
In 1972, The Landsat Program, a series of satellite missions jointly managed by NASA and the U.S. Geological Survey, began supplying satellite images that can be geologically analyzed.
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Time's Arrow, Time's Cycle is a 1987 history of geology by Stephen Jay Gould offering a historical account of the conceptualization of Deep Time and uniformitarianism using the works of Thomas Burnet, James Hutton, and Charles Lyell.