Petrology of some Logan diabase sills, Cook County, Minnesota by Norris W. Jones

Cover of: Petrology of some Logan diabase sills, Cook County, Minnesota | Norris W. Jones

Published by Minnesota Geological Survey, University of Minnesota in Saint Paul .

Written in English

Read online

Places:

  • Minnesota,
  • Cook County.

Subjects:

  • Diabase -- Minnesota -- Cook County,
  • Sills -- Minnesota -- Cook County

Edition Notes

Book details

StatementNorris W. Jones.
SeriesReport of investigations / Minnesota Geological Survey,, 29, Report of investigations (Minnesota Geological Survey) ;, 29.
Classifications
LC ClassificationsQE462.D5 J66 1984
The Physical Object
Paginationiv, 40 p. :
Number of Pages40
ID Numbers
Open LibraryOL2666524M
LC Control Number85621208

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Saint Paul: Minnesota Geological Survey, University of Minnesota, (OCoLC) Material Type: Government publication, State or province government publication: Document Type: Book: All Authors /. MINNESOTA GEOLOGICAL SURVEY MATT WALTON, Director PETROLOGY OF SOME LOGAN DIABASE SILLS, COOK COUNTY, MINNESOTA l5TI Report of Investigations 29 ISSN UNIVERSITY OF MINNESOTA Saint Paul - Norris W.

Jones. Jones, N.W.,Petrology of Some Logan Diabase Sills, Cook County, Minnesota, Minnesota: Minnesota Geological Survey Report of Investigati 40 by: 7.

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RI Petrology of Some Logan Diabase Sills, Cook County, Minnesota. By Norris W. Jones. Abstract. Four diabase sills (Logan intrusions; middle Proterozoic; Keweenawan) between South and Birch Lakes, South Lake quadrangle, northeastern Minnesota, have the following general sequence of textural zones: lower chilled margin, lower fine-grained.

Contributions to Mineralogy and Petrology SeptemberVolumeIssue 4, pp – | Cite as Simulation of primary phase relations and mineral compositions in the Partridge River intrusion, Duluth Complex, Minnesota: implications for the parent magma composition. The rapidity with which alcohol and some sugars may serve as nutrients, Am.

Physiol., 41 () 26 20 Herzberg, G.R. and Rogerson, A.M., Interaction of the level of dietary fat and type of carbohydrate in the regu lation of hepatic lipogenesis in the mouse, Can.

Structure and petrology of the sill on Pigeon Point, Cook County, Minnesota, Un-publ Min-neapolis, 3 10 p. PALMER, H. Paleomagnetism and correlation of some Middle Keweenawan rocks, Lake.

Click on the book chapter title to read more. Author of Laboratory Manual for Physical Geology, Laboratory manual for optical mineralogy, Physical Geology, Petrology of some Logan diabase sills, Cook County, Minnesota, Laboratory Manual for Optical Mineralogy (Various Pagings), Laboratory Manual for Physical Geology, Lab Manual for Physical Geology by Jones, Lab Manual for Physical Geology by Jones.

Request PDF | On Jan 1,M.C. Smyk and others published Midcontinent Rift-related mafic intrusions north of the international border Petrology of some Logan diabase sills Find, read and cite all the research you need on. Bishop, D. T.,Petrology and geochemistry of the Purcell sills in Bondary County, Idaho; pp.

15–66 in Belt Symposium Cook County, Volume 2: Idaho Bureau of Mines and Geolog and Petrology of some Logan diabase sills Department of Geology, University of Idaho, Moscow, Idaho, USA, p.

Google Scholar. Cook County is a county in the U.S. state of million visitors travel to Cook County each year. As of the United States Census, the population was 5, making it the fifth-least populous county in Minnesota. Its county seat is Grand Marais. The Grand Portage Indian Reservation is entirely within the county.

intrusions, Brule Lake–Hovland ferrogabbro, and late phases of the Beaver River diabase). Limited radiometric dating suggests that most hypabyssal intrusions are generally younger than the Duluth Complex.

U-Pb ages of Duluth Complex intrusions range from to Ma (Paces and Miller, ; Davis and Green, ; Vervoort, unpub. data, ). With the exception of the Logan intrusions. Open Library is an open, editable library catalog, building towards a web page for every book ever published.

Read, borrow, and discover more than 3M books for free. Services offer access to some State Map Series maps and mosaics of more recent, high-resolution data sets. U.S. Geological Survey. Minnesota Geologic Map Data Geologic units and structural features in Minnesota provided as a GIS database, interactive map, and web mapping service.

The highest point in Cook County is at the northwest corner and is almost feet above sea level. For most of the county the topography slopes gradually toward Lake Michigan to the east and is dissected by north-south trending stream-cut valleys.

Most of the central and southeastern portion of Cook County is composed of a low flat plain. N 7. View topo maps in Cook County, Minnesota by clicking on the interactive map or searching for maps by place name and feature type. You can also browse by feature type (e.g.

lakes or summits) by selecting from the list of feature types above. Geologic units in Cook county, Minnesota. Basalt and basaltic andesite (Mesoproterozoic) Logan intrusions (Mesoproterozoic) at surface, covers 5 % of this area.

Diabase and gabbro sills and dikes; locally porphyritic (~1, 1, Ma). Diabase, gabbro, and ferromonzodiorite (Mesoproterozoic) at surface, covers 3 % of this area. Most of these reports are county-based, have been converted to PDF, and are available from links below.

The reports are also available at Federal depository libraries. USDA phased out the printing of reports after making Web Soil Survey the official source for information in The Rove Formation, is a sedimentary rock formation of Middle Precambrian age underlying the upper northeastern part of Cook County, Minnesota, United States, and extending into Ontario, is the youngest of the many layers of sedimentary rocks which constitute the Animikie Group.

Before the Rove sediments were laid down, during the Archean Eon, the Algoman orogeny added landmass. Diabase, gabbro, and ferromonzodiorite (Mesoproterozoic) at surface, covers % of this area.

Diabase, gabbro, and ferromonzodiorite. Primarily sills including the Endion, Lester River, Silver Cliff, Stony Point, Split Rock, Lafayette Bluff, Lake Clara–Lichen Lake. This is a site is the Minnesota Geological Survey's Open Data web page designed to display and explore all aspects of Minnesota's geologic information in digital form.

This site is. The Rove Formation is located in the upper northeastern part of Cook County, Minnesota, United States, and extends into Ontario, Canada. It is the youngest of the many Animikie layers, a layer of sedimentary rocks.

Full text of "Bulletin of the United States Geological Survey--Bibliography and Index of North American Geology, Paleontology, Petrology, and Mineralogy for the yearsInclusive" See other formats.

Rove Formation Last updated Decem The Rove Formation, also known as the Middle Precambrian Rove Formation, [1] is a sedementary rock formation underlying the upper northeastern part of Cook County, Minnesota, United States, and extending into Ontario, is the youngest of the many Animikie layers, a layer of sedimentary rocks.

Construction Aggregate is mined in every county in Minnesota. Dimension Stone: is cut rock used for counter tops, building facades, and grave stones. Dimension stone quarries are found in various locations within the state and include rock types such as quartzite, granite, gabbro, and limestone.

12 Jul, passing lanes were constructed on highway #53, 6 miles miles south of Cook. Some day we will have a four lane all the way from Virginia.

27 Jan. Howard Lindsey & Shirley Wells died in their house fire. 09 Feb. Musakka log house burned, ten miles south of Cook. Cook County Minnesota (2) Dakota Book: Archean to Anthropocene: Field Guides to the Geology of the Mid-Continent of North America.

implications for emplacement of the Mesoproterozoic Nipigon diabase sills and mafic to ultramafic intrusions. Journal: Canadian Journal of Earth Sciences.

Read the latest magazines about Diabase and discover magazines on Additional Physical Format: Online version: Grout, Frank F. (Frank Fitch), b.

Geology of Cook County, Minnesota. Minneapolis: University of Minnesota Press, Cook County Minnesota (5) Duluth Complex (22) Book: Archean to Anthropocene: Field Guides to the Geology of the Mid-Continent of North America.

partial melting of Archean crust. The volcanic rocks were erupted subaerially, primarily from fissures, though there is some evidence for central volcanoes. Some of the rhyolites are very large.

Cook has 28 identified mines listed in The Diggings™. The most commonly listed primary commodities in Cook mines are Iron, Titanium Metal, and the time these mines were surveyed, 20 mines in Cook were observed to have ore mineralization in an outcrop, shallow pit, or isolated drill hole—known as an occurance mine.

1 Cook has 6 prospect mines. 2 2 mines were in production at. MINNESOTA GEOLOGICAL SURVEY, MISC. MAP SERIES. Collection of 37 maps covering various regions of Minnesota, most focused on bedrock, with some gravity maps.

They are: M-2 Green J.C. et al. GABBRO LAKE QUADRANGLE, LAKE COUNTY MINNESOTA; M-3 Ikola R.J. SIMPLE BOUGUER GRAVITY MAP OF MINNESOTA, HIBBING SHEET; M-4 Ikola R.J.

SIMPLE. Contact Us. Minnesota Digital Library University of Minnesota Wilson Library, Room 60 19th Avenue South Minneapolis, MN Cook County, MN Gold mines, mine companies, mine owners and mine information.

US-Mining provides information on mines, operators, and minerals mined in Cook County, MN. Filter 27 mines by commodity, disposition, development status, and record type in Cook County, Minnesota. Filter 27 mines by commodity, disposition, development status, and record type in Cook County, Minnesota.

of emails from people who find their name or a relative’s name on our site and want to know if this means they have some right. Summary of Geologic History. Although the oldest formation exposed at the surface in Logan County is the Niobrara formation, it is known from the records of deep tests for oil and gas that the exposed rocks are underlain by older sedimentary rocks of Mesozoic and Paleozoic age, which in turn rest upon crystalline rocks of Precambrian age.

The Duluth Complex and associated subvolcanic intrusions comprise a large (5, km 2) intrusive complex in northeastern Minnesota that was emplaced into comagmatic volcanics during the development of the Ga Midcontinent rift in North addition to anorthositic and felsic intrusions, the Duluth Complex is composed of many individual mafic layered intrusions of tholeiitic.

University of Minnesota in Minneapolis, who has taught geology to s students, trained. some people to shoot, collected many hundreds of thousands of fossils, written some professional papers, 4 books, 80 articles on narrow gauge railroad history and model railroading, and 10 pieces of teaching software.

This is a nice little book on Minnesota's geological history, but it's not for everyone. Although it's accessible to those with a basic high school science education, it probably won't be an easy read; and unless you have a particular interest in geology, it probably won't be an interesting read s: 5.LOUIS, LAKE AND COOK COUNTIES, NORTHEASTERN MINNESOTA,pb, 37 pages, 2 plates (in pocket), 28 figs., 4 tables, $ 24 GP / AEROMAGNETIC MAP OF CENTRAL PINE COUNTY, MINNESOTA, AND PARTS OF WISCONSIN, $ 10 GP / AEROMAGNETIC MAP OF A PART OF WESTERN MINNESOTA, $ 10 Mineralogy Books Select Mineral Books Rock, Gem, and Mineral.

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