Volcano List
About Alaska's Volcanoes Hazards from Alaska's Volcanoes
Map & Alphabetical List Interactive Map
Eruption Search Volcano Search
|
Text Description: Bowlder (not in place) from floor of Katmai crater. Considerably altered basalt of high olivine content, but the olivines have been wholly replaced by fibrous aggregates of some mineral of a dingy yellowish-green color and moderate birefringence, probably a chlorite. The feldspars, on the other hand, look perfectly fresh, and the grains of iron ore have not been oxidized. References:  The Katmai magmatic province |
| StationID | Latitude | Longitude | Geologist | DateVisited | Age Info | Volcano | Eruption | Location Description | Text Description | Sample ID | Sample Type 1 | Sample Type 2 | Final Unit | Material | SiO2 | TiO2 | Al2O3 | FeOT | MnO | MgO | CaO | Na2O | K2O | P2O5 | Total-majors | REF majors | METH majors | Fe2O3/Fe203T orig | FeO/FeOT orig | Volatiles csv | METH volatiles | Cs | Rb | Ba | Sr | La | Ce | Pr | Nd | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Y | Zr | Nb | Hf | Ta | Pb | Th | U | Sc | V | Cr | Fe | Co | Ni | Cu | Zn | Ga | Mo | As | Na | K | Ref trace1 | METH trace1 | Rb | Ba | Sr | La | Ce | Nd | Sm | Eu | Gd | Dy | Er | Yb | Lu | Y | Zr | Nb | Pb | Th | U | Sc | Ti | V | Cr | Ni | Cu | Zn | Ga | Ref trace2 | METH trace2 | Light csv | Halogen csv | other major csv | other lile csv | other ree csv | other hfse csv | other hpe csv | other tm csv | other misc csv | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 522 | 58.279 | -154.9533 | Fenner, C. N. | Katmai | Floor of Katmai crater. | Bowlder (not in place) from floor of Katmai crater. Considerably altered basalt of high olivine content, but the olivines have been wholly replaced by fibrous aggregates of some mineral of a dingy yellowish-green color and moderate birefringence, probably a chlorite. The feldspars, on the other hand, look perfectly fresh, and the grains of iron ore have not been oxidized. | 522 | Lava | Whole-rock | 49.4 | 0.85 | 17.36 | 8.4 | 0.18 | 6.32 | 8.2 | 2.33 | 0.16 | 0.14 | 99.73 | 1176 | NN | 5.17 | 3.68 | H2OP=1.56; H2OM=4.71; Cl=0.08; CO2=0.08 | NN | 1176 |
This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G22AC00137
Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.
Operations
Response
Staff
Fields of Study
Geology
Color Code Definitions
Webcams
Webicorders
RSAM
Great Sitkin
Trident
Glossary
Recent Images
Browse Images
