Upper Mississippi Valley structure

Abstract

Research Article| June 30, 1934 Upper Mississippi Valley structure A. C. TROWBRIDGE A. C. TROWBRIDGE Search for other works by this author on: GSW Google Scholar GSA Bulletin (1934) 45 (3): 519–528. https://doi.org/10.1130/GSAB-45-519 Article history received: 31 Jan 1934 first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation A. C. TROWBRIDGE; Upper Mississippi Valley structure. GSA Bulletin 1934;; 45 (3): 519–528. doi: https://doi.org/10.1130/GSAB-45-519 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu nav search search input Search input auto suggest search filter All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract INTRODUCTIONAlthough there are obvious and close relationships between Paleozoic structure in the upper Mississippi Valley and sedimentary, stratigraphic, geomorphic, and economic problems in this classic area, relatively little attention has been given to structure in the past. The purposes of this paper are to present a new structure contour map based on the Jordan-Oneota (Cambrian-Ordovician) contact and to point out certain implications bearing on other problems. The map is based on data obtained from many sources. Locations and elevations of the datum contact along the Mississippi River and some of the control points, on the Wisconsin, the Black, the Chippewa, the St. Croix, and the Minnesota rivers were taken from measured and plotted longitudinal sections and cross-sections made by the writer from 1928 to 1930 while engaged as consulting geologist to the Nine-foot Channel Board. Many other points on the datum surface were located by the writer, his assistants, . . . This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not currently have access to this article.