Pg. 118. Tishomingo granite. Lies in heart of Chickasaw Nation, south of and underlying Wapaunucka limestone district. At its eastern outcrop it is composed of red feldspar, white and black mica, quartz, and hornblende, with numerous pegmatitic veins. In western part of Chickasaw Nation the feldspar is albite. The granite is intersected by numberous dikes of diabase. [Age is pre-Cambrian.]
[Named from Tishomingo, Johnson Co., Arbuckle Mountains, central southern OK, which is located on the granite.]
Source: US geologic names lexicon (USGS Bull. 896, p. 2156).
Pg. 2; and 1903, USGS Geol. Atlas of the U.S., Tishomingo folio, no. 98, p. 2. Tishomingo granite. Coarse pink or red pegmatitic granite with numerous dikes of basic rocks. Quartz monzonite occurs in intimate relations to the granite and appears as phases of it. In some instances the monzonite occurs with some definition of boundary. Again it blends with the granite gradually. [Age is pre-Cambrian.]
Source: US geologic names lexicon (USGS Bull. 896, p. 2156).
[See under Colbert porphyry.]
Source: US geologic names lexicon (USGS Bull. 896, p. 2156).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
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