Calderas of the San Juan volcanic field, southwestern Colorado /
Eighteen major ash-flow tuff sheets were deposited and perhaps as many related calderas developed during emplacement of an underlying shallow batholith in late Oligocene time.
| Main Authors: | , |
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| Corporate Author: | |
| Format: | Government Document Book |
| Language: | English |
| Series: | Geological Survey professional paper ;
958. |
| Subjects: |
| Summary: | Eighteen major ash-flow tuff sheets were deposited and perhaps as many related calderas developed during emplacement of an underlying shallow batholith in late Oligocene time. |
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| Physical Description: | iii, 35 pages : illustrations ; 29 cm. |
| Bibliography: | Bibliography: pages 34-35. |