Author: William M. FrewPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 36
Book Description
Stratigraphy and Paleontology of a Well Core Through the Middle Ordovician in Salem Township, Washtenaw County, Michigan
Author: William M. FrewPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 36
Book Description
The Stratigraphy and Paleontology of the Buss-Halb Unit No. 1 Well Core, Freedom Township, Washtenaw County, Michigan
Author: Erle Galen KauffmanPublisher:
ISBN:
Category : Drill core analysis
Languages : en
Pages : 156
Book Description
Journal of Research of the U.S. Geological Survey
Author: Geological Survey (U.S.)Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 414
Book Description
Scientific notes and summaries of investigations in geology, hydrology, and related fields.
Early sedimentary evolution of the Michigan Basin
Author: Paul A. CatacosinosPublisher: Geological Society of America
ISBN: 081372256X
Category : Science
Languages : en
Pages : 258
Book Description
The Pan-American Geologist
Author: Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 486
Book Description
"A monthly journal devoted to speculative geology, constructive geological criticism, and geological record" (varies slightly).
Ice Tunnel Closure Phenomena
Author: John F. AbelPublisher:
ISBN:
Category : Civil engineering
Languages : en
Pages : 56
Book Description
The mechanics of closure, exhibited by ice tunnels, can be understood by considering the ice as a viscous solid. The viscous solid will flow, when subjected to a force, at a rate dependent on the magnitude of the force, the area of relief open for flow, and the apparent viscosity of the viscous solid. In the case of the ice tunnels, the force inducing the flow is the weight of the overburden; the area of relief open for flow is the tunnel opening; and apparent viscosity is the resistance to flow exhibited by the ice. The closure of a rectangular opening made in ice was measured. Maximum closure occurs at the center of unsupported roof, wall, or floor spans. The vertical closure rate decreases negligibly approximately 2% from the center of a room to approximately 6 ft from the wall. From the point about 6 ft from the wall to the wall, the closure rate decreases about 30%. Approximately 30% of vertical closure at the center of the span is due to flexure of the floor and roof. The remaining 70% is due to shortening of the wall height; the major portion of this wall closure occurs at the bottom of the wall. Over 80% of closure due to flexure of the floor and roof results from flexure of the floor. (Author).
Methods and Costs of Treatment at the Calumet & Hecla Reclamation Plant
Author: C. Harry BenedictPublisher:
ISBN:
Category : Leaching
Languages : en
Pages : 20
Book Description
Ordovician and Cambrian Fossils from a Well Core, Delta County, Michigan
Author: Donald James MoorePublisher:
ISBN:
Category : Paleontology
Languages : en
Pages : 128
Book Description
Geological Survey Bulletin
Author: The Mineralogy of Michigan
Author: Eberhardt William HeinrichPublisher:
ISBN:
Category : Mineralogy
Languages : en
Pages : 260
Book Description
Foreword: Michigan has a long and varied geologic history that includes repeated episodes of volcanism, mountain building, deposition of marine and terrestrial sediments, and glaciations. As a result, we have been endowed with a rich and diverse assemblage of minerals. Appreciation of Michigan's mineral resources began well before the first Europeans set foot here. When Michigan became a state in 1837, one of the first actions of the fledgling legislature was to establish a geological survey of the state, to "furnish a full and scientific description of its rocks, soils, and minerals and provide specimens of the same" Our mineral resources have been studied, categorized, and evaluated for many years, and we continue to learn more about them today. Michigan minerals helped to build the state and nation, and they continue to be an important industrial and commercial resource, a fertile subject for academic study, and a source of fascination and enjoyment for countless hobbyists.