Geologic evolution of the Sierra Madre Oriental between Linares, Concepción del Oro, Saltillo, and Monterrey, Mexico

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dc.contributor.advisorMuehlberger, William R.
dc.creatorPadilla y Sánchez, Ricardo José
dc.date.accessioned2023-03-19T18:14:34Z
dc.date.available2023-03-19T18:14:34Z
dc.date.issued1982
dc.descriptionPublished maps from this dissertation are available on the Geological Society of America website: https://www.geosociety.org/maps/2007-DMCH004/?WebsiteKey=a5b62ffc-18e7-49eb-b75a-db5406bdc7ea
dc.description.abstractThe Sierra Madre Oriental between Saltillo, Monterrey, and Linares shows a bend in structures that strike from approximately N 35° E to about N 35° W. Most of the rocks involved in the Curvature of Monterrey are Mesozoic in age and range from Late Triassic to Late Cretaceous. Large amplitude folds and thrust faults contribute to the structural complexity of this region. The structural trends present in northeast Mexico are the result of the Late Paleocene-Early Eocene Laramide Orogeny, and their different styles of folding are intimately related to the fundamental landforms of Early Mesozoic paleogeography. Relatively mild deformation is shown in the Mesozoic sedimentary cover that overlies the stable paleocontinental basement highs of the Coahuila, La Mula and Monclova Islands, Tamaulipas Archipelago, and El Burro-Peyotes Peninsula. The tight folding observed in the Sierra Madre Oriental is the result of regional northeastward décollement blocked by the basement highs. Two prominent west-northwest-trending lineaments transect the region: herein named the "Boquillas-Sabinas" and "Sierra Mojada-China" Lineaments. Prominent paleogeographic highs lie on the outside of the area bounded by these lineaments, with the area between occupied by major basins and small "islands". Recurrent motion along these lineaments seems likely and movement along them in Early Mesozoic time blocked out the paleogeographic elements discussed in this dissertation. It is proposed in this study that the structural features of northeast Mexico are the result of a sinistral relative movement of southern United States (westward) with respect to northern Mexico (eastward) during the Laramide Orogeny, contemporaneously with a regional décollement event produced by the tilting toward the northeast of the so-called "Unnamed Occidental Continent" . Thus from the detailed study of the mapped structures and stratigraphic sequences at the Curvature of Monterrey, and from detailed interpretations of satellite photographs, the model presented here for the mechanism of deformation of northeast Mexico explains not only the bend in structures at the Curvature of Monterrey, but also most of the structural trends in northeast Mexico, including the en e[]chelon folds in the Sabinas Gulfen_US
dc.description.departmentEarth and Planetary Sciencesen_US
dc.format.mediumelectronicen_US
dc.identifier.urihttps://hdl.handle.net/2152/117629
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/44509
dc.language.isoengen_US
dc.relation.ispartofUT Electronic Theses and Dissertationsen_US
dc.rightsCopyright © is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.en_US
dc.rights.restrictionOpenen_US
dc.subjectSierra Madre Oriental geologyen_US
dc.subjectMexico geologyen_US
dc.subjectStratigraphic geologyen_US
dc.subjectMesozoicen_US
dc.subjectStructural geologyen_US
dc.subjectGeologic evolutionen_US
dc.subject.lcshGeology--Mexico--Sierra Madre Oriental
dc.subject.lcshGeology, Stratigraphic--Mesozoic
dc.subject.lcshGeology, Structural
dc.titleGeologic evolution of the Sierra Madre Oriental between Linares, Concepción del Oro, Saltillo, and Monterrey, Mexicoen_US
dc.typeThesisen_US
dc.type.genreThesisen_US
thesis.degree.departmentGeological Sciencesen_US
thesis.degree.disciplineGeological Sciencesen_US
thesis.degree.grantorUniversity of Texas at Austinen_US
thesis.degree.levelDoctoralen_US
thesis.degree.nameDoctor of Philosophyen_US

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