Volcano List
About Alaska's Volcanoes Hazards from Alaska's Volcanoes
Map & Alphabetical List Interactive Map
Eruption Search Volcano Search
|
Text Description: 10 cm thick. 2 to 3.5 m below woody, organic-rich silt and peat that host abundant large stumps and logs. It occurs as pods and lenses offset by centimetre-scale faults within massive, grey silt. Located 25 to 30 m above Yukon River. References:  Permafrost response to last interglacial warming: field evidence from non-glaciated Yukon and Alaska The Palisades is a key reference site for the middle Pleistocene of eastern Beringia: new evidence from paleomagnetics and regional tephrostratigraphy A catalogue of late Cenozoic tephra beds in the Klondike Goldfields and adjacent areas, Yukon Territory Old Crow tephra across eastern Beringia: a single cataclysmic eruption at the close of Marine Isotope Stage 6 |
| StationID | Latitude | Longitude | Geologist | DateVisited | Age Info | Volcano | Eruption | Location Description | Text Description | Sample ID | Sample Type 1 | Sample Type 2 | Final Unit | Material | Coeff | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Palisades | 65.08527 | -153.26861 | Unknown, Unknown | 124000 ± 10000 known unit; 10271; Age is approximate. Revised glass fission-track age with re-calibration; four Old Crow Tephra sample glass fission-track ages (UT1434, UT613, UT501, UT613). | Palisades, Yukon River, Alaska. Datum not specified, assumed to be NAD83. | 10 cm thick. 2 to 3.5 m below woody, organic-rich silt and peat that host abundant large stumps and logs. It occurs as pods and lenses offset by centimetre-scale faults within massive, grey silt. Located 25 to 30 m above Yukon River. | UA1198 | Tephra Fall | Cumulate | Glass | 75.08 | 0.29 | 13.14 | 1.75 | 0.06 | 0.29 | 1.51 | 3.83 | 3.73 | 8023 | EMP | 1.75 | Cl=0.31; H2O=4.75 | EMP | 4.34 | 101 | 978 | 138 | 25 | 53.5 | 5.99 | 24.5 | 5.96 | 0.94 | 5.05 | 0.93 | 5.49 | 1.35 | 3.55 | 0.53 | 3.73 | 0.62 | 34.6 | 250 | 7.5 | 11.03 | 4.68 | 5.95 | 10271 | ICPMS |
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
Aniakchak
Glossary
Recent Images
Browse Images
