DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY NEW INFORMATION RESOURCES OF THE U.S. GEOLOGICAL...and subject index. Washington, DC : Western Energy and Land Use Team, Division of Biological Services...Dept. of the Interior, 1985. P(200) I49obs no.85 (12) Geochemical map showing the distribution of selected...(200) MF no.!539-F Geology and mineral resources of the White Mountains National Recreation Area, east-central...Lake Natron : geology, geochemistry and paleontology of an evaporitic basin from the East African rift. Strasbourg |