Record Details
Physical characteristics of proximal Cleetwood airfall deposits, Crater Lake, OR :the transition from explosive to effusive eruption
Klamath Waters Digital Library
| Field | Value |
|---|---|
| Title | Physical characteristics of proximal Cleetwood airfall deposits, Crater Lake, OR :the transition from explosive to effusive eruption SEM backscatter electron images |
| Creator | Bourgeois, Renée Lise |
| Date | 1998 2009-02-24 |
| Subject | Mazama, Mount (Oregon) -- Eruptions; Volcanic ash, tuff, etc. -- Oregon; Volcanoes -- Oregon; |
| Description | Typescript; Thesis (M.S.)--University of Oregon, 1998; Includes vita and abstract; Includes bibliographical references (leaves 183-186); CD-ROM contains SEM backscatter electron images for appendix B 98 collapse. The oxide shells are clearly preserved around the non-collapsed areas of the bubbles, but also encircle recently deflated portions. While it is likely that bubble collapse occurs in lava flows during emplacement, the same line of evidence can be used to argue vesicle collapse in the tephra populations as well, even though it may occur by a different mechanism. Lava flow samples, therefore, contain a small range in vesicularity, but a wide range of feldspar microlite... Vll TABLE OF CONTENTS Chapter Page I. INTRODUCTION 1 Geologic History 1 Background 5 The Cleetwood Eruption 6 II. METHODS 13 Sampling 13 Sample Preparation 15 Density Measurements 16 Vesicularity 19 Componentry 19 Thin Section Preparation 20 Image Collection and Analysis 20 Electron Microprobe Analysis 21 X-Ray Fluorescence (XRF) 23 III. STRATIGRAPHY AND PHYSICAL VOLCANOLOGY DATA 24 Location Descriptions 24 Whole Deposit Data 30 Juvenile Sub-Populations... |
| Source | Originally published as: Physical characteristics of proximal Cleetwood airfall deposits, Crater Lake, OR; (1998); xiv, 186 leaves; 1 CD-ROM (5 1/4 in.) |
| Contributor | Thesis (M.S.)--University of Oregon, 1998 |
| Publisher | Oregon Institute of Technology. Library |
| Relation | Digital reproduction of: http://www.worldcat.org/oclc/43084835 |
| Type | text |
| Format | application/xml PDF file size: 25,481,216 bytes Master file format: image/tiff; master file size: 6,366,666,752 bytes; bit depth: 24; color mode: color; resolution: 600 dpi; capture hardware: Plustek OpticBook 3600; optimization software: Adobe Photoshop CS3 |
| Language | eng; |
| Identifier | UOOL-30-Jan-2009-120 http://digitallib.oit.edu/cdm/ref/collection/craterlake/id/10112 |
