"The conditions necessary for emplacement of Mississippi Valley-type mineral deposits can be expressed using mathematical symbols as a function of the pre-depositional topography of the host formation and post-depositional structure. These conditions can be observed and analyzed in the Missouri region from residual maps of trend surface analysis of the Precambrian surface. In areas where the topography prior to deposition of the ore bearing horizon has been strongly altered by the deposition of the basal Paleozoic formation the Lamotte Formation residual maps from trend surface analysis of the top of the Lamotte better illustrate these conditions. The Lamotte Formation in Missouri can be divided into five units. The characteristics of the formation vary upward from a basal arkose association through an unconformity sand association to a blanket sand association. The contact between the Lamotte and overlying Bonneterre Formation is generally conformable and gradational although in certain areas this contact may be unconformable. The character of the basal Bonneterre transition zone is strongly influenced by the proximity of Precambrian topographic highs. Some of the sand in the basal Bonneterre may have been derived from preexisting Lamotte"--Abstract, page ii.
Rockaway, John D.
Beveridge, Thomas R. (Thomas Robinson), 1918-1978
Grant, S. Kerry
Aughenbaugh, N. B.
Spreng, Alfred C., 1923-2012
Geosciences and Geological and Petroleum Engineering
Ph. D. in Geology
Missouri. Geological Survey
University of Missouri--Rolla
ix, 161 pages
Mississippi River Valley
© 1972 John Siegfried Trapp, All rights reserved.
Dissertation - Open Access
Library of Congress Subject Headings
Ore deposits -- Mississippi River Valley -- Mathematical models
Trend surface analysis
Geology, Stratigraphic -- Precambrian
Geology, Stratigraphic -- Paleozoic
Print OCLC #
Electronic OCLC #
Link to Catalog Recordhttp://laurel.lso.missouri.edu/record=b1066515~S5
Trapp, John Siegfried, "Trend surface analysis as an aid in exploration for Mississippi Valley type ore deposits" (1972). Doctoral Dissertations. 217.