Counties
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Burnet Sheet
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date:
1949
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Marble Falls Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1949
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Correlation of Gravity of the Coal Creek Serpentine Mass, Blanco and Gillespie Counties, Texas
Abstract: "Gravitational observations were made of the pre-Cambrian Coal Creek serpentine mass in Blanco and Gillespie Counties, Texas, the geology of which had been mapped previously. The observed gravitational anomalies indicate roughly the depth of the serpentine mass below which it may possibly grade into its parent peridotitic rock. Probable correlation between the gravitational map and the other geologic features of the area is indicated" (p. 151).
Date:
April 2, 1949
Creator:
Romberg, Frederick & Barnes, Virgil E. (Virgil Everett), 1903-1998
Object Type:
Report
System:
The Portal to Texas History