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dc.contributor.advisorHanson, Richard E.
dc.contributor.authorToews, Chelsea Elizabethen_US
dc.date.accessioned2015-08-10T18:20:49Z
dc.date.available2015-08-10T18:20:49Z
dc.date.created2015en_US
dc.date.issued2015en_US
dc.identifierUMI thesisen_US
dc.identifier.urihttps://repository.tcu.edu/handle/116099117/8645
dc.description.abstractOne of the main outcrop areas of the Cambrian Wichita Igneous Province in southern Oklahoma occurs in the West Timbered Hills, but has never been studied in detail before. New mapping shows that extensive amounts of polymict igneous breccia and microgranite and diabase intrusions occur within the area. Microgranites have A-type compositions similar to other felsic rocks in the Wichita Province. Diabase intrusions have within-plate tholeiitic and alkaline signatures. The breccia forms discordant masses 1.4 km across cutting older rocks. Felsic and mafic clasts within the breccia are set within a finer grained matrix. Juvenile basaltic pyroclasts in the matrix indicate that the breccia is phreatomagmatic in origin, and it is inferred to fill vent conduits for maar volcanoes. Diabase intrusions in the area are interpreted to represent parts of the magma plumbing system that supplied the phreatomagmatic eruptions.en_US
dc.format.mediumFormat: Onlineen_US
dc.publisher[Fort Worth, Tex.] : Texas Christian University,en_US
dc.relation.ispartofTCU Master Thesisen_US
dc.relation.requiresMode of access: World Wide Web.en_US
dc.relation.requiresSystem requirements: Adobe Acrobat reader.en_US
dc.titleCambrian phreatomagmatic igneous breccia and associated bimodal hypabyssal intrusions in the West Timbered Hills, Arbuckle Mountains, southern Oklahomaen_US
dc.typeTexten_US
etd.degree.departmentDepartment of Geology, Energy and the Environment
local.collegeCollege of Science and Engineering
local.departmentGeological Sciences
local.academicunitSchool of Geology, Energy and the Environment
dc.type.genreThesis
local.subjectareaGeological Sciences
etd.degree.nameMaster of Science


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