Stromatoporoids and the Upper Devonian Alamo Impact Breccia of southeastern Nevada

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dc.contributor Weislogel, Amy L.
dc.contributor Mancini, Ernest A.
dc.contributor Morrow, J. R.
dc.contributor.advisor Stock, Carl W. Aul, Jeffrey L. 2017-03-01T14:36:28Z 2017-03-01T14:36:28Z 2010
dc.identifier.other u0015_0000001_0000430
dc.identifier.other Aul_alatus_0004M_10460
dc.description Electronic Thesis or Dissertation
dc.description.abstract Eleven species in 10 genera of stromatoporoids were identified from within and below the Alamo Breccia of southeastern Nevada, in an effort to determine the excavation depth of a bolide impact that occurred during the Late Devonian, approximately 382 Ma. The specimens identified in this study are taxa that are also known from Iowa, Canada, and other parts of the world. Actinostroma cf. A. clathratum, Clathrocoilona cf. C. involuta, Stictostroma maclareni, Trupetostroma bassleri, and Arctostroma contextum were identified from stromatoporoid-bearing beds located in the Guilmette Formation below the Alamo Breccia. Atelodictyon sp. 1, Hammatstroma albertense, and Hermatoporella sp. 1 were identified from both below and within the Alamo Breccia. The remaining species: Actinostroma sp. 1, Atopostroma distans, and Habrostroma turbinatum were identified from within the Alamo Breccia. Based on the results of this study, a definite depth of penetration cannot be obtained. However, using stromatoporoid biostratigraphy, it is most likely that the bolide impacted no deeper than rocks of Emsian age.
dc.format.extent 72 p.
dc.format.medium electronic
dc.format.mimetype application/pdf
dc.language English
dc.language.iso en_US
dc.publisher University of Alabama Libraries
dc.relation.ispartof The University of Alabama Electronic Theses and Dissertations
dc.relation.ispartof The University of Alabama Libraries Digital Collections
dc.relation.hasversion born digital
dc.rights All rights reserved by the author unless otherwise indicated.
dc.subject.other Geology
dc.subject.other Paleontology
dc.title Stromatoporoids and the Upper Devonian Alamo Impact Breccia of southeastern Nevada
dc.type thesis
dc.type text University of Alabama. Dept. of Geological Sciencess Geology The University of Alabama master's M.S.

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