Home › W › Weed (WALTER HARVEY American)

Weed (WALTER HARVEY American)

WALTER HARVEY, American geologist; born in St. Louis, May 1, 1862; was graduated at Columbia School of Mines in 1883; and was then appointed geologist on the United States Geological Survey. In 1883-1889 he was WEEK on the geological survey of the Yellowstone Park. He discovered that colors in hot springs and deposits in geysers are caused by algæ. He also discovered Death Gulch in that park, where bears, elk, etc., are killed by inhaling carbon dioxide gas emitted from an extinct hot spring. In 1889-1898 he was engaged on a general geological exploration of Montana, and made important discoveries. In 1899 he brought out the first published theory of secondary enrichment of ore deposits. He was the author of "Formation of Hot Springs Deposits"; "Laramie and Livingston Formations"; "Glaciation of Yellowstone Park"; "Geology of Castle Mountain District"; "Geology of Bear Paw Mountains"; "Secondary Enrichment of Mineral Veins"; "Ore Deposits"; etc.