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Geologic Time Scale

Geologic time scale showing the onset of major global evolutionary events and tectonic events of the North American continent and the Northern Cordillera.

Geologic time scale showing the onset of major global evolutionary events and tectonic events of the North American continent and the Northern Cordillera. SCAK = south-central Alaska. SEAK = southeast Alaska. The divisions of the geologic time scale are organized stratigraphically, with the oldest divisions at the bottom and the youngest at the top. GRI map abbreviations for each time division are in parentheses. Plate 2 (in pocket) shows the ages of rock types within the Katmai area. Ages are millions of years ago (MYA)

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International Commission on Stratigraphy

Public domain:Full Granting Rights

Image

Alagnak Wild River, Code: ALAG
Katmai National Park and Preserve, Code: KATM

Alagnak Wild River, Lake and Peninsula Borough, Alaska
Latitude: 59.003101348877, Longitude: -156.082000732422

Katmai National Park and Preserve, Alaska
Latitude: 58.5661087036133, Longitude: -154.889404296875

NPS.gov Collection

01/01/0001

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Friday, September 3, 2021 11:57:56 AM

Friday, September 3, 2021 1:01:56 PM

06_KATM_Geo Time Scale - Alaska Tectonics-01.jpg

Monday, January 1, 0001 12:00:00 AM

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