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The AAPG/Datapages Combined Publications Database
Houston Geological Society Bulletin
Abstract
Abstract: Deep Test in the Ouachita Structural Belt of Central Texas
By
Shell Oil Company, Barrett No. 1, a 20,310 foot wildcat in Hill County,
Texas, was drilled on a large anticlinal complex in pre-Jurassic strata
delineated by the seismograph. The well penetrated 3,904 feet of Cretaceous
and Jurassic strata, 9,691 feet of phyllites, slates, and quartzites of
unknown age, 6,060 feet of metamorphosed carbonate section of possible
Devonian through Cambrian age, 125 feet of quartzite, and bottomed in
metamorphosed quartz diorite. This large structure could have been formed
(1) by decollement folding and thrusting, (2) as an external miogeanticlinal
ridge, (3) as an autochthonous ruptured basement fold or uplift,
(4) by emplacement of a plutonic body, or (5) by a combination of the above. End_of_Record - Last_Page 18--------