Gravel remnants at various elevations over a wide area in southeastern New Mexico are related to a once extensive cover of High Plains Ogallala deposits. A correlation of the "quartzose conglomerate" fill along the Pecos depression with basal Ogallala is suggested.
Research Article| January 01, 1949 STRUCTURAL TRENDS IN CENTRAL WESTERN WYOMING LELAND HORBERG; LELAND HORBERG UNIVERSITY OF CHICAGO, CHICAGO, ILL.; UNIVERSITY OF KENTUCKY, LEXINGTON, KY.; SHELL OIL COMPANY, BAKERSFIELD, CALIF. Search for other works by this author on: GSW Google Scholar VINCENT NELSON; VINCENT NELSON UNIVERSITY OF CHICAGO, CHICAGO, ILL.; UNIVERSITY OF KENTUCKY, LEXINGTON, KY.; SHELL OIL COMPANY, BAKERSFIELD, CALIF. Search for other works by this author on: GSW Google Scholar VICTOR CHURCH VICTOR CHURCH UNIVERSITY OF CHICAGO, CHICAGO, ILL.; UNIVERSITY OF KENTUCKY, LEXINGTON, KY.; SHELL OIL COMPANY, BAKERSFIELD, CALIF. Search for other works by this author on: GSW Google Scholar GSA Bulletin (1949) 60 (1): 183–216. https://doi.org/10.1130/0016-7606(1949)60[183:STICWW]2.0.CO;2 Article history received: 28 May 1941 first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation LELAND HORBERG, VINCENT NELSON, VICTOR CHURCH; STRUCTURAL TRENDS IN CENTRAL WESTERN WYOMING. GSA Bulletin 1949;; 60 (1): 183–216. doi: https://doi.org/10.1130/0016-7606(1949)60[183:STICWW]2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract The area extending southeastward from the south end of Teton Basin, Idaho, to the northern part of Green River Basin, Wyoming, exhibits two types of Laramide structure modified by Tertiary high-angle faults. Included within the area are parts of the Teton, Gros Ventre, Hoback, and Snake River ranges.Structure in the Teton and Gros Ventre ranges consists of broad, asymmetrical anticlines, a major northeast-dipping thrust fault, and three large fault blocks. Structures in the Hoback and Snake River ranges include close folds of Appalachian type and low-angle, southwest-dipping thrust faults. Initial Teton-Gros Ventre structures probably were formed during an early phase of Laramide orogeny and, as buttresses, controlled the trend and character of the later Hoback-Snake River structures. Laramide movements appear to have begun in the Late Cretaceous and continued at least into late Eocene time. Tertiary faults of Basin-Range type and with north-south trends transect older structures and are responsible for the east scarp of the Teton Range, small fault blocks in Jackson Hole, and the western boundary structure of the northern Hoback Range.Regional stratigraphic relations had an important effect on both the trend and type of Laramide deformation, but this influence cannot be recognized in the Basin-Range faulting. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
The following six trends in American geology are discussed: (1) Diversification of geology into specialized sub-sciences. (2) Adoption of the methods and viewpoints of related basic sciences. (3) Expansion of geological research. (4) Vocationalism. (5) The increasing loss of geology teachers to industry and government organizations. (6) The great increase in enrollment of students in geology classes expected during the next few years. For the geology teacher these trends raise numerous problems. Some of the developments needed for their solution are: (1) A more conscious effort to unify the subject matter of geology and to define more clearly the concepts basic to general geology. (2) Provision for training both specialized and general geologists. (3) An increase in the number of grants available for individual research as opposed to directed research and large group projects. (4) A decrease in the teaching of applied geology. (5) Greater efforts—on the part of college and university administrations, gove...
