Geology of the Hugo pegmatite, Keystone, South Dakota, / by J.J. Norton, L.R. Page, and D.A. Brobst.
| Author/creator | Norton, James J. |
| Other author | Page, Lincoln R. (Lincoln Ridler), 1910-1996, author. |
| Other author | Brobst, Donald A. (Donald Albert), 1925-2011 author. |
| Format | Book |
| Publication Info | Washington, U.S. Govt. Print. Off., 1962. |
| Description | iv, 49-127 pages illustrations, maps 29 cm |
| Subjects |
| Series | Pegmatites and other Precambrian rocks in the southern Black Hills Geological Survey professional paper 297-B Pegmatites and other Precambrian rocks in the southern Black Hills. UNAUTHORIZED Geological Survey professional paper 297-B. ^A16492 |
| Contents | Abstract -- Introduction -- General geology -- Metamorphic rocks -- Roy and Monte Carlo pegmatites -- Structure -- Pegmatite units -- Zone 1: Albite-quartz-muscovite pegmatite -- Zone 2: Quartz-albite-muscovite pegmatite -- Zone 3: Perthite-quartz-albite pegmatite, quartz-perthite-albite pegmatite, albite-quartz-phosphate pegmatite, and quartz-albite pegmatite -- Zone 4: Quartz-cleavelandite-microcline-amblygonite pegmatite and quartz-cleavelandite pegmatite -- Zone 5: Quartz-microcline-spodumene pegmatite -- Zone 6: Quartz-microcline pegmatite -- Zone 7: Cleavelandite-microcline-lithia mica pegmatite -- Cleavelandite-microcline-lithia mica replacement unit -- Cleavelandite-quartz-lithia mica replacement unit -- Mineral distribution and paragenesis of the entire pegmatite -- Comparison of the zonal sequence with that in other pegmatites -- Replacement of features -- Review of the evidence for replacement in pegmatites -- Replacement features -- Review of the evidence for replacement in pegmatites -- Replacement in the Hugo pegmatite -- Mineral variations -- Evidence for magmatic intrusion -- Evidence for temperature of crystallization -- Chemical composition -- Course of crystallization -- Origin -- Industrial minerals -- Potash feldspar -- Scrap mica and beryl -- Lithium minerals -- Other minerals -- References cited -- Index. |
| Abstract | "A detailed structural and petrologic study of a pegmatite containing seven zones and two replacement bodies." |
| Local note | Joyner-FOR JOYNER LIBRARY HOLDINGS OF THE SERIES, U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER, SEARCH BY CALL NUMBER QE75 .P9. |
| General note | Part of illustrative matter fold. in pocket. |
| Bibliography note | Includes bibliographical references (pages 125-126). |
| Action note | Joyner- committed to retain 20200101 20401231 CUSP |
| Genre/form | Government publications. |
| LCCN | 72605589 |
| Govt. docs number | I 19.16:297-B |
| Govt. docs number | I 19.16:297-B c.2 |