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Publications in Llano

Title Publication Year Abstract Author Series Publisher
Geologic map of the Hilltop Quadrangle, Gillespie, Llano, and Mason Counties, Texas Geologic map of the Hilltop Quadrangle, Gillespie, Llano, and Mason Counties, Texas 1952 Barnes, V.E. Geologic Quadrangle Map Bureau of Economic Geology
Geologic Map of the Crabapple Creek Quadrangle Gillespie and Llano Counties, Texas Geologic Map of the Crabapple Creek Quadrangle Gillespie and Llano Counties, Texas 1952 Barnes, V.E. Geologic Quadrangle Map Bureau of Economic Geology
Geologic map of the Willow City quadrangle, Gillespie and Llano Counties, Texas Geologic map of the Willow City quadrangle, Gillespie and Llano Counties, Texas 1952 Barnes, V.E. Geologic Quadrangle Map Bureau of Economic Geology
Geologic Map of the Blowout Quadrangle, Blanco, Gillespie, and Llano Counties, Texas Geologic Map of the Blowout Quadrangle, Blanco, Gillespie, and Llano Counties, Texas 1952 Barnes, V.E. Geologic Quadrangle Map Bureau of Economic Geology
The Carboniferous Rocks of the Llano Region of Central Texas 1950 Plummer, F.B. UT Publication
Correlation of gravity observations with the geology of the Coal Creek serpentine mass, Blanco and Gillespie Counties, Texas Correlation of gravity observations with the geology of the Coal Creek serpentine mass, Blanco and Gillespie Counties, Texas 1949

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.

Romberg, Frederick, Barnes, V.E. Report of Investigations Bureau of Economic Geology
Iron ore in the Llano region, central Texas Iron ore in the Llano region, central Texas 1949

The magnetic iron-ore prospects of the Llano region of central Texas were investigated in a program which combined dip-needle and gravity-meter surveys by the Bureau of Economic Geology of The University of Texas and the U.S. Geological Survey with exploration by the U.S. Bureau of Mines.

Barnes, V.E., Goldich, S.S., Romberg, Frederick Report of Investigations Bureau of Economic Geology
Limestones in central Texas suitable for the manufacture of rock wool Limestones in central Texas suitable for the manufacture of rock wool 1944 Plummer, F.B. Mineral Resource Circular Bureau of Economic Geology
Graphite in Llano County, Texas 1943

The origin and occurrence of graphite in the Central Mineral region of Texas have been described by Barnes, Comstock, Dube, Paige, Baker, and possibly others. The following excerpt from Barnes explains the most logical origin of the pre-Cambrian graphite when compared with field conditions:

 Chelf, C.R. Mineral Resource Survey Circulars
A New Feldspar Deposit in Llano County, Texas 1942

Feldspars represent one of the most abundant groups of minerals and account for approximately 60 percent of the igneous rocks of the earth, according to Clark. All are grouped in a series of related aluminum silicates that contain varying amounts or proportions of potash, soda, and lime.

Chelf, C.R. Mineral Resource Survey Circulars