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Determining the Geometry and Former Extent of the North Mountain Thrust from Fluid Inclusion and Microstructural Analysis

Castles, Megan Erin
http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1269223700

Abstract Details

2010, Master of Science (MS), Bowling Green State University, Geology.
Fluid inclusion microthermometry, microstructural analysis, and vitrinite reflectance measurements were used to determine pressure and temperature conditions in several Paleozoic rock units in the Valley and Ridge province in order to determine the former extent and geometry of the North Mountain thrust sheet. Overburden thicknesses determined for the Devonian Hampshire/Catskill Formation, Mississippian Pocono Sandstone, and Pennsylvanian Pottsville Sandstone were found to be 5.5-6.0, 4.5-10.5, and 4.8-8.0 km, respectively. Differences in salinity and CH4 content between the Hampshire/Catskill Formation and the Pocono Sandstone and Pottsville Formation indicate that the Hampshire/Catskill Formation was affected by fluids from a different source than the younger units. These fluids were also cooler than those in overlying units, which explains why the older Hampshire/Catskill Formation yielded lower overburden thicknesses. All units experienced considerably greater overburdens than can be explained stratigraphically, which supports the model of Evans (1989) that the North Mountain thrust once extended over these rocks so that the large overburdens are of tectonic origin.
Charles Onasch, PhD (Advisor)
James Evans, PhD (Committee Member)
John Farver, PhD (Committee Member)
85 p.
Geology
Fluid Inclusions; Microstructures; North Mountain Thrust

Recommended Citations

Citations

  • Castles, M. E. (2010). Determining the Geometry and Former Extent of the North Mountain Thrust from Fluid Inclusion and Microstructural Analysis [Master's thesis, Bowling Green State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1269223700

    APA Style (7th edition)

  • Castles, Megan. Determining the Geometry and Former Extent of the North Mountain Thrust from Fluid Inclusion and Microstructural Analysis. 2010. Bowling Green State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1269223700.

    MLA Style (8th edition)

  • Castles, Megan. "Determining the Geometry and Former Extent of the North Mountain Thrust from Fluid Inclusion and Microstructural Analysis." Master's thesis, Bowling Green State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1269223700

    Chicago Manual of Style (17th edition)

bgsu1269223700
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© 2010, all rights reserved.
This open access ETD is published by Bowling Green State University and OhioLINK.