Surficial geology of the Tyonek area, south-central Tyonek Quadrangle, Alaska
Description
The Tyonek area in the northwestern Cook Inlet trough is rich in petroleum, coal, geothermal, aggregate, and timber resources, but the detailed geologic mapping necessary for planning future resource development exists only in part of the area. This report and geologic map provide basic surficial-geologic information useful for exploiting those resources and planning future utility corridor developments. In addition to mapping of surficial geologic units, we provide discussion of strategraphic evidence pertaining to physiographic relations and geologic history of volcaniclastic deposits derived from ancestral Mount Spurr, multiple phases of Quaternary glacial activity, Chakachatna River valley landslide complexes and debris avalanches, the Kaloa deposits in northwestern Cook Inlet, Lake Clark fault, and holocene flooding in the Beluga, Chichantna, Chakachatna, and McArthur river drainages.
Resources
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http://dx.doi.org/10.14509/18241 |
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http://dx.doi.org/10.14509/22221 |
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http://dx.doi.org/10.14509/29471 |
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CSDGM IMPORT ERROR: No digtinfo/formcont |
http://dx.doi.org/10.14509/29471 |
Tags
- tyonek quadrangle
- pleistocene
- chigmit mountains
- surficial deposits
- landslide deposit
- debris avalanche
- tectonics
- jasper
- chakachatna-mcarthur embayment
- surficial geologic map
- blockade glacier
- castle mountain fault
- beluga river
- jokulhlaup
- quaternary
- earthquake related slope failure
- holocene
- straight creek
- colluvium
- mount spurr
- tertiary
- chuitna coal project
- neoglacial
- lake clark fault
- naptowne glaciation
- alaska earthquake 1964
- chakachatna river
- cook inlet basin
- erratics
- penultimate glaciation
- correlation
- glacioestuarine deposits
- cook inlet
- surface fault rupture
- moraines
- little ice age
- lahar
- fault displacement
- depositional environment
- sediment gravity flow
- glacial geology
- chalcedony
- chuitna river
- threemile creek
- neotectonics
- alluvial fan
- bootlegger cove formation
- beluga plateau
- tyonek formation
- capps glacier
- glacier outburst flood
- till
- rotational landslide
- surficial geology
- diamictons
- tordrillo mountains
- volcaniclastic deposits
- statemap project
- neacola mountains
- susitna lowland
- kaloa deposits
- west foreland formation
- coastal plain
- radiocarbon ages
- tyonek