Doctoral Dissertations
Abstract
"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.
Advisor(s)
Rockaway, John D.
Committee Member(s)
Beveridge, Thomas R. (Thomas Robinson), 1918-1978
Grant, S. Kerry
Aughenbaugh, N. B.
Spreng, Alfred C., 1923-2012
Department(s)
Geosciences and Geological and Petroleum Engineering
Degree Name
Ph. D. in Geology
Sponsor(s)
Missouri. Geological Survey
Publisher
University of Missouri--Rolla
Publication Date
1972
Pagination
ix, 161 pages
Note about bibliography
Includes bibliographical references (pages 72-75).
Geographic Coverage
Mississippi River Valley
Time Period
Precambrian
Paleozoic
Rights
© 1972 John Siegfried Trapp, All rights reserved.
Document Type
Dissertation - Open Access
File Type
text
Language
English
Subject Headings
Ore deposits -- Mississippi River Valley -- Mathematical modelsTrend surface analysisGeology, Stratigraphic -- PrecambrianGeology, Stratigraphic -- Paleozoic
Thesis Number
T 2757
Print OCLC #
6034224
Electronic OCLC #
887720419
Recommended Citation
Trapp, John Siegfried, "Trend surface analysis as an aid in exploration for Mississippi Valley type ore deposits" (1972). Doctoral Dissertations. 217.
https://scholarsmine.mst.edu/doctoral_dissertations/217