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Genre/Form: | Guidebooks |
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Additional Physical Format: | Online version: Tobacco Root Geological Society. Field Conference (12th : 1987 : Helena, Mont.). Guidebook of the Helena area, west-central Montana. Butte, Mont. : Montana Bureau of Mines and Geology, Montana College of Mineral Science and Technology, 1987 (OCoLC)624723610 |
Material Type: | Conference publication, Government publication, State or province government publication |
Document Type: | Book |
All Authors / Contributors: |
Richard B Berg; Ray Breuninger; Tobacco Root Geological Society. Field Conference |
OCLC Number: | 19269435 |
Notes: | Cover title: 1987 guidebook of the Helena area. |
Description: | iv, 64 pages : illustrations ; 28 cm. |
Contents: | Preface -- Road logs: -- Road Log No. 1: Economic geology of the greater Helena area -- Helena to Montana Tunnels mines, Lump Gulch, Grizzly Gulch, Fort Harrison and Marysville / John Herrin, Giles Walker, Charles V. Baltzer and Marvin Ratcliff -- Road Log No. 2: Sapphire deposits of the Missouri River near Helena, Montana / Michael C. Stickney -- Road Log No. 3: Quaternary geology and faulting of the Helena valley, Montana / Michael C. Stickney -- Road Log No. 4: Helena and the north border zone of the Boulder batholith, Montana / Ray H. Breuninger and John F. Childs -- Article: -- Historical development of Helena / John Herrin -- Abstracts: -- Quaternary geology and seismicity of the Helena valley, Montana / Michael C. Stickney -- Epithermal precious-metal systems associated with an Eocene cauldron: Lowland Creek volcanic field, southwestern Montana / Fess Foster -- The Groundhog mine, Argenta distridct, southwest Montana -- An auriferous replacement deposit / Elizabeth F. Brenner -- Gold mineralization related to emplacement of the Boulder batholith, Montana / Robert E. Derkey and Hiroharu Matsueda -- Sapphire deposits of the Helena, Montana area / Lester G. Zeihen -- Mineral occurrences of the Helena area / Giles Walker -- Geology, mineralization and mining history of the Drumlummon mine, Lewis and Clark County, Montana / Charles V. Baltzer -- A statistical model of mineral wealth in west-central Montana / Lynne R. Dickman -- Marine tongue in the middle Kootenai Formation north of Helena, Montana / Susan M. Vuke-Foster -- The transference of thrust motion in northwest Montana / Ralph L. Johnson. |
Series Title: | Special publication (Montana Bureau of Mines and Geology), 95. |
Other Titles: | 1987 guidebook of the Helena area |
Responsibility: | compiled by Richard B. Berg and Ray H. Breuninger ; prepared in cooperation with the Tobacco Root Geological Society, Twelfth Annual Field Conference, July 15-18, 1987. |
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