Zones and zonal variations in welded ash flows
Professional Paper
354-F
By: R. L. Smith
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- Document: Report (pdf)
- Plates:
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Abstract
Welded tuffs are recognized as special parts of ash flows, other pyroclastic flows, or, more rarely, air-fall deposits. Ash flows may be emplaced at any temperature below a maximum eruption temperature. Those emplaced above a minimum welding temperature may show any and all degrees of welding and crystallization.
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Zones and zonal variations in welded ash flows |
| Series title | Professional Paper |
| Series number | 354 |
| Chapter | F |
| DOI | 10.3133/pp354F |
| Year Published | 1960 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Washington, D.C. |
| Description | Report: 11 p.; 2 Plates: 16.55 x 10.82 inches |
| First page | 149 |
| Last page | 159 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |