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Ralph Erskine Van Alstine
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Fluorine in a closed drainage basin, Saguache and Alamosa Counties, Colorado
Ralph Erskine Van Alstine · For sale by the Distribution Branch, U.S. Geological Survey
Sayfa sayısı yok · 1982
Geochemistry / Fluorine
Copper deposits of the Kotsina-Kuskulana district, Alaska
Ralph Erskine Van Alstine · U.S. Govt. Print. Off.
145 sayfa · 1946
Copper ores / Greenstone belts / Limestone / Geology / Mineralogy
Fluorspar resources of Africa
Ralph Erskine Van Alstine · U.S. Govt. Print. Off. : for sale by the Supt. of Docs.
25 sayfa · 1980
Fluorspar
Geology and mineral deposits of the Poncha Springs NE quadrangle, Chaffee County, Colorado
Ralph Erskine Van Alstine · U.S. Govt. Print. Off.
52 sayfa · 1969
Mines and mineral resources / Geology
Geology and mineral deposits of the Poncha Springs SE quadrangle, Chaffee County, Colorado
Ralph Erskine Van Alstine · U.S. Govt. Print. Off.
19 sayfa · 1974
Mines and mineral resources / Geology