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Geologic map of the Granite 7.5' quadrangle, Lake and Chaffee Counties, Colorado

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Geologic map of the Granite 7.5' quadrangle, Lake and Chaffee Counties, Colorado; 2014; SIM; 3294; Shroba, Ralph R.; Kellogg, Karl S.; Brandt, Theodore R.

Summary

The geologic map of the Granite 7.5' quadrangle, Lake and Chaffee Counties, Colorado, portrays the geology in the upper Arkansas valley and along the lower flanks of the Sawatch Range and Mosquito Range near the town of Granite. The oldest rocks, exposed in the southern and eastern parts of the quadrangle, include gneiss and plutonic rocks of Paleoproterozoic age. These rocks are intruded by younger plutonic rocks of Mesoproterozoic age. Felsic hypabyssal dikes, plugs, and plutons, ranging in age from Late Cretaceous or Paleocene to late Oligocene, locally intruded Proterozoic rocks. A small andesite lava flow of upper Oligocene age overlies Paleoproterozoic rock, just south of the Twin Lakes Reservoir. Gravelly fluvial and fan deposits [...]

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Harvested on Mon Jul 21 12:31:32 MDT 2014 from MODS XML Service

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Type Scheme Key
local-index unknown sim3294
local-pk unknown 70100469
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.3133/sim3294
series unknown Scientific Investigations Map

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journalScientific Investigations Map
parts
typePublication Place
valueReston, VA
languageEnglish
citationTypeReport

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