Geochemical variation in a copper-bearing redbed sequence of the Ravalli Group (Belt Supergroup), northwestern Montana and northern Idaho
By: by Jon J. Connor ; with analytical contributions from A.J. Bartel ... [et al.]
Contributors: Bartel, A. J; Geological Survey (U.S.)
Series: Open-file report -- 91-0028 A, 91-0028 B; U.S. Geological Survey open-file report -- 91-28 A, B
Publisher: U.S. Geological Survey; Books and Open-File Reports Section [distributor]
Published: 1991
Place of publication: Denver, Colo
Language: eng
Format: Microform
Subjects: Geochemistry -- Montana; Geochemistry -- Idaho; Copper ores -- Idaho; Copper ores -- Montana
Other titles: Geochemical variation, Ravalli Group redbeds NW Montana & N Idaho
Notes: Cover title

Distributed to depository libraries in microfiche

Shipping list no.: 92-0531-M

Imprint and distribution information from transmittal sheet

Title on disk label: Geochemical variation, Ravalli Group redbeds NW Montana & N Idaho

Computer disk contains 22 files

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Microfiche. [Denver, Colo. : U.S. Geological Survey, 1991?] 1 microfiche : negative

s 1991 cou n
Table of contents: title: 91-0028A. Geological interpretation (paper copy); title: 91-0028B. Geochemical data files, ASCII, (1) 5 1/4" 360K floppy diskette