Last edited by U.S. G.P.O.
15.05.2021 | History

5 edition of Great Lakes tectonic zone--revisited found in the catalog.

Great Lakes tectonic zone--revisited

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      • Includes bibliographical references (p. 9-11).

        StatementU.S. G.P.O.
        PublishersU.S. G.P.O.
        LC Classifications1993
        The Physical Object
        Paginationxvi, 63 p. :
        Number of Pages60
        ID Numbers
        ISBN 10nodata
        2ch. S
        3Contributions to Precambrian geology of Lake Superior region ;

        nodata File Size: 10MB.

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Great Lakes tectonic zone--revisited by U.S. G.P.O. Download PDF EPUB FB2

The Great Lakes tectonic zone GLTZ is a Late Archean crustal boundary paleosuture Great Lakes tectonic zone--revisited least 1,200 kilometers long that juxtaposes a Late Archean greenstone-granite terrane Wawa subprovince of Superior province on the north and an Early to Late Archean gneiss terrane Minnesota River Valley subprovince on the south.

: 409 In the Marquette area, the GLTZ is a northwest-striking zone of metamorphic rock about 2 km 1. The aim of this Research Topic is to highlight recent advances in the sources, chemistry and function of these microbial-produced macromolecules. South of this boundary, geon 17 Yavapai-interval rocks form the basement upon which 1750 Ma rhyolite and succeeding quartzite sequences were deposited. : 8 These Late Archean rocks form a roughly north—south belt lying south of Marquette extending to the Michigan-Wisconsin border.

The Geological Society of America. Six large plates include a geological map of Canada, geological map of the Grenville Province, lithotectonic map of the Superior Province, Archean mineral deposit map of the Superior Province, and more.

The Algoman Mountains had been built and then eroded into sediments that covered the area. During rifting [ ] This shows a possible configuration for the attachment of the Wyoming and Superior provinces at 2,100 million years ago. It is located in the highlands of Africa. The complex of ancient gneisses is intruded by a younger, weakly deformed granite body, the Sacred Heart granite. : 1 Some of the Penokean granites show iron enrichment similar to the series, rather than the low-oxygen concentration of the magnetic titanium oxides.

For best results viewing and printing PDF documents, it is recommended that you download the documents to your computer and open them with Adobe Reader. The Superior province was underridden by the Minnesota River Valley subprovince plate.

Great Lakes tectonic zone : revisited /

Supporting evidence [ ] Before rifting [ ] Matachewan Dike Swarms Swarms of mafic dikes and sills are typical of continental rifting and can be used to time supercontinent breakup. The Minnesota River Valley subprovince is also shown.

: 410 Composition of rock This map shows the locations of the Superior province, Penokean orogeny, Minnesota River Valley subprovince, Great Lakes tectonic zone Minnesota's portion and the present-day location Great Lakes tectonic zone--revisited the Wyoming province.

; Wu, Jianjun; Salisbury, Matthew H. from the GLTZ-rifting environment continued into the Penokean orogeny, which is the next major event in the. Suturing of one continental block onto another usually occurs because a zone exists beneath one of the blocks. 4-D Framework of Continental Crust. June 29 — July 2, 1981. : 9 In the northern Black Hills of southwest South Dakota the 2,600- to 2,560-million-year-old Precambrian crystalline core, the Blue Draw Metagabbro, is a 1 km 0.

Lake Malawi has a length of 579 km, an average depth of 292 m, and a maximum depth of 706 m. Geological Guidebook to the Paleoproterozoic East Bull Lake Intrusive Suite Plutons at East Bull Lake, Agnew Lake and River Valley, Ontario.