Author: Emmett Lee HerbstPublisher:
ISBN:
Category :
Languages : en
Pages : 146
Book Description
The Geology of the Northwestern Portion of the Des Arc, Missouri Quadrangle
Author: Emmett Lee HerbstThe Geology of the Northwestern Portion of the Lesterville Quadrangle, Missouri
Author: Theodore Alexander BuderPublisher:
ISBN:
Category :
Languages : en
Pages : 158
Book Description
Geology of the Northeast Portion of Des Arc Quadrangle, Iron and Madison Counties, Missouri
Author: Wesley Dean WeixelmanPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 150
Book Description
"A geological investigation of the northeast portion of Des Arc Quadrangle in southeast Missouri was completed during the summer of 1958. Exposed Precambrian rocks include, from oldest to youngest, undifferentiated purple rhyolites with an interlayered tile-red rhyolite, andesine basalts with interlayered tuff, and an andesite. A diabase dike intrudes the lower purple rhyolites. The purple rhyolites account for about ninety-seven percent of the Precambrian exposures. Exposed Paleozoic rocks belong to the Bonneterre formation and include three members: (1) Lower Brown dolomite; (2) Light Gray dolomite with Tom Sauk limestone and arkosic sandstone and conglomerate facies; and (3) Upper Brown dolomite. These members correlate with zones 2, 3, and 4, respectively, of McQueen and Stewart for the Bonneterre formation of the Fredericktown area. Residuum derived from the Davis, Derby-Doerun, Potosi, Eminence, Gasconade, and Roubidoux formations covers much of the area. The Precambrian rocks show gentle dips, possibly of primary origin. Locally the tile-red rhyolite is inclined forty degrees. Primary structures include flow layering and poorly developed bedding in the rhyolites, plus contraction joints in all the Precambrian rock units. At least one fault occurs in the purple rhyolites. Initial dips off Precambrian knobs are the main structures in the Paleozoic rocks. Joints related to differential compaction occur around these knobs. Aeromagnetic data appear to correlate well with the calculated susceptibilities for the various exposed igneous rock types of the area, using Slichter's method of calculation. Possible economic use might be made of the Tom Sauk limestone exposed in Marble Creek valley for agricultural lime, in manufacture of portland cement, or for terrazzo. Small quartz veins in the Precambrian rhyolites show no apparent metallic values. Aeromagnetic positive anomalies in the area are not considered indicative of buried iron-ore bodies. A tuff exposed near the Blue School, however, shows a relatively high hematite content and might constitute low-grade iron ore of not more than 5,000,000 tons reserves. Lead ores in the Bonneterre formation are unlikely in the area since the favorable stratigraphic horizon of the nearby Fredericktown area (zone 1 of McQueen and Stewart) is missing"--Abstract, leaves v-vi.
Guidebook to the Geology of the St. Francois Mountain Area
Author: William Clifton HayesPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 144
Book Description
Tulsa Geological Society Digest
Author: Tulsa Geological SocietyPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 402
Book Description
Bibliography of the Geology of Missouri, 1945-1955
Author: Edward Lee ClarkPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 154
Book Description
Geology of the Northwest Portion of the Richwoods Quadrangle, Missouri
Author: Carl Robert BurgchardtPublisher:
ISBN:
Category : Geology
Languages : en
Pages :
Book Description
New Publications of the Geological Survey
Author: Geological Survey (U.S.)Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 746
Book Description
A User's Guide to Missouri Maps
Author: Terry W. BarneyPublisher:
ISBN:
Category : Cartography
Languages : en
Pages : 208
Book Description
Selected Geologic Literature, Lower Mississippi Valley Division Area
Author: Roger T. SaucierPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 154
Book Description