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
| Name | Format | Description | Link |
|---|---|---|---|
| Web Resource | Unknown | Open resource | |
| Web Resource | Unknown | Open resource | |
| Shapefiles | Unknown | CSDGM IMPORT ERROR: No digtinfo/formcont | Open resource |
| Web Resource | Unknown | Open resource |
Tags
- alaska earthquake 1964
- alluvial fan
- beluga plateau
- beluga river
- blockade glacier
- bootlegger cove formation
- capps glacier
- castle mountain fault
- chakachatna-mcarthur embayment
- chakachatna river
- chalcedony
- chigmit mountains
- chuitna coal project
- chuitna river
- coastal plain
- colluvium
- cook inlet
- cook inlet basin
- correlation
- debris avalanche
- depositional environment
- diamictons
- earthquake related slope failure
- erratics
- fault displacement
- glacial geology
- glacier outburst flood
- glacioestuarine deposits
- holocene
- jasper
- jokulhlaup
- kaloa deposits
- lahar
- lake clark fault
- landslide deposit
- little ice age
- moraines
- mount spurr
- naptowne glaciation
- neacola mountains
- neoglacial
- neotectonics
- penultimate glaciation
- pleistocene
- quaternary
- radiocarbon ages
- rotational landslide
- sediment gravity flow
- statemap project
- straight creek
- surface fault rupture
- surficial deposits
- surficial geologic map
- surficial geology
- susitna lowland
- tectonics
- tertiary
- threemile creek
- till
- tordrillo mountains
- tyonek
- tyonek formation
- tyonek quadrangle
- volcaniclastic deposits
- west foreland formation