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GEOMORPHIC DEVELOPMENT ON THE LOG CABIN BATHOLITH, LARIMER COUNTY, COLORADO.
Abstract
The surface of the Log Cabin Batholith, Larimer County, Colorado, displays a suite of landforms that seems anomalous for a granitic terrane. Tors, not unusual in granitic regions, are common. Closed depressions, however, range from small pits that resemble potholes in a stream bed to shallow rimmed pans. Larger depressions give the region almost a karstic appearance and resemble dolines and blind valleys. The largest are the sites of permanent lakes.The batholith is composed of coarse-grained Silver Plume granites and quartz monzonites of Precambrian age (1350-1480 m.y.). These rocks grade into porphyritic facies with subtrachytic alignment of feldspar grains near metamorphic contacts. Well developed vertical and horizontal joint sets impart a high permeability to the batholith.
Subject Area
Geology
Recommended Citation
MOEGLIN, THOMAS DEAN, "GEOMORPHIC DEVELOPMENT ON THE LOG CABIN BATHOLITH, LARIMER COUNTY, COLORADO." (1978). ETD collection for University of Nebraska-Lincoln. AAI7900338.
https://digitalcommons.unl.edu/dissertations/AAI7900338