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Saturday, November 7, 2020 | History

2 edition of Revisions of stratigraphic nomenclature within the Keweenawan supergroup of northern Michigan found in the catalog.

Revisions of stratigraphic nomenclature within the Keweenawan supergroup of northern Michigan

William F. Cannon

Revisions of stratigraphic nomenclature within the Keweenawan supergroup of northern Michigan

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  • 35 Currently reading

Published by U.S. G.P.O., For sale by Book and Open-File Report Sales, U.S. Geological Survey in Washington, Denver, CO .
Written in English

    Places:
  • Porcupine Volcanics (Mich.),
  • Bergland Group (Mich.),
  • Copper Harbor Conglomerate (Mich.),
  • Portage Lake Volcanics (Mich.),
  • Michigan.,
  • Michigan,
  • Keweenaw Peninsula.
    • Subjects:
    • Geology, Stratigraphic -- Proterozoic.,
    • Volcanic ash, tuff, etc. -- Michigan.,
    • Rhyolite -- Michigan -- Keweenaw Peninsula.,
    • Porcupine Volcanics (Mich.),
    • Bergland Group (Mich.),
    • Copper Harbor Conglomerate (Mich.),
    • Portage Lake Volcanics (Mich.)

    • Edition Notes

      Includes bibliographical references.

      Statementby William F. Cannon and Suzanne W. Nicholson. Geochemistry, petrography, and volcanology of rhyolites of the Portage Lake volcanics, Keweenaw Peninsula, Michigan / by Suzanne W. Nicholson.
      SeriesContributions to the geology and mineral resources of the midcontinent rift system ;, ch. A-B, U.S. Geological Survey bulletin ;, 1970 A-B
      ContributionsNicholson, Suzanne W., Nicholson, Suzanne W.
      Classifications
      LC ClassificationsQE75 .B9 no. 1970 A-B, QE653.5 .B9 no. 1970 A-B
      The Physical Object
      Pagination1 v. (various pagings) :
      ID Numbers
      Open LibraryOL1565644M
      LC Control Number91047744

      all geography including DSDP/ODP Sites and Legs Africa North Africa. isopachs of Paleozoic units reveal significant thickness changes across the horst within the carbonate formations of the Early Or- • The Paleozoic rocks lie on top of a thick sequence of Mesoproterozoic rocks of the Keweenawan Supergroup, associated with the J.H., , Paleozoic stratigraphic nomenclature for Minnesota, Minnesota. Adams, G.W., , Geology of the Lynne Base-Metal Deposit, North Central Wisconsin, U.S., in LaBerge, G.L., Ed., Volcanogenic massive sulfide deposits of northern.


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Revisions of stratigraphic nomenclature within the Keweenawan supergroup of northern Michigan by William F. Cannon Download PDF EPUB FB2

Revisions of stratigraphic nomenclature within the Keweenawan supergroup of northern Michigan by William F. Cannon,U.S. G.P.O., For sale by Book and Open-File Report Sales, U.S.

Geological Survey edition, in English. General Information. Title: Revisions of stratigraphic nomenclature within the Keweenawan Supergroup of northern Michigan Author(s): Cannon, W.F., and Nicholson, S.W.

Publishing Organization: U.S. Geological Survey Series and Number: Bulletin A Larger Work: Contributions to the geology and mineral resources of the midcontinent rift system.

These rocks are Precambrian in age and assigned to the Keweenawan Supergroup. Within the section, several formations are recognized and named in the three states; however, definite correlation between the variously named formations is in part controversial.

The age of these sedimentary units is quite uncertain (Van Schmus and Hinze, ). REVISED KEWEENAWAN SUBSURFACE STRATIGRAPHY, SOUTHEASTERN MINNESOTA by G.

MOREY ABSTRACT The Midcontinent Gravity High is the major tectonic feature of the northern midcontinent region. Numerous geophysical surveys have shown that this structure is mainly a sequence Revisions of stratigraphic nomenclature within the Keweenawan supergroup of northern Michigan book basaltic lava flows which form.

Stratigraphy of Pre-Keweenawan Rocks in Parts of Northern Michigan new stratigraphic names and revisions of terminology of the pre-Keweenawan rocks.

The present paper is in northern Michigan, there remain the same questions of actual time significance that plagued Leith and ledCited by: Revisions of stratigraphic nomenclature within the Keweenawan supergroup of northern Michigan / ([Reston, Va.?]: U.S.

Dept. of the Interior, U.S. Geological Survey ; Denver, CO: For sale by Book and Open-File Report Sales, ), by William F. Cannon, Suzanne W. Geochemistry Nicholson, and Suzanne W. Nicholson (page images at HathiTrust). Rocks in Northern Michigan A Revision of Stratigraphic Nomenclature for Middle Precambrian within scope of their employment.

Individual scientists are hereby granted Keweenawan Marquette Range Supergroup Paint River Group araga Group Menotninee Group.

W.F. Cannon, S.W. NicholsonRevisions of stratigraphic nomenclature within the Keweenawan supergroup of northern Michigan. Contributions to the geology and mineral resources of the midcontinent rift system.

Revisions of stratigraphic nomenclature within the Keweenawan Supergroup of northern Michigan we change the stratigraphic correlation of the Copper Harbor Conglomerate from "middle Keweenawan. b ab / cannon, w. and nichols, s. / revisions of stratigraphic nomenclature within the keweenawan supergroup of northern michigan geochemistry, petrography, and volcanology of rhyolites of the portage lake volcanics, keweenaw peninsula,pb, 57 pages, 3 figs., $ 10 b / gundersen, l.

b ab / cannon, w. and nichols, s. / revisions of stratigraphic nomenclature within the keweenawan supergroup of northern michigan geochemistry, petrography, and volcanology of rhyolites of the portage lake volcanics, keweenaw peninsula,pb, 57 pages, 3 figs., $ 10 michigan.

The stratigraphy of the Kanawha Formation in West Virginia has been confused by regional miscorrelations of many units. To resolve these inconsistencies, this report has: (1) revised and defined three widely distributed marine units as the Betsie, Dingess, and Winifrede Shale Members of the Kanawha Formation (Middle Pennsylvanian); (2) extended the name “Fire Clay” into West Virginia.

Comparative stratigraphy of the Keweenawan Supergroup in the Lake Superior region. Modified from Cannon and Nicholson (). Paleomagnetic measurements suggest that the rift rocks were deposited at low latitudes (e.g. Henry et al.,Watts,Elmore and van der Voo, ), and hence a tropical to subtropical climate likely prevailed.

Revisions of Stratigraphic Nomenclature within the Keweenawan Supergroup of Northern. Michigan. I Field Studies of Radon in Rocks, Soils, and Water. I Coalfields of New Mexico: Geology and Resources. I Stratigraphy, Regional Distribution, and Reconnaissance Geochemistry of Oligocene and Miocene.

Paleoproterozoic strata in northern Michigan, Wisconsin, and Minnesota were deposited between and Ga within the rifted margin and subsequent foreland basin of the Penokean orogen. Revisions of stratigraphic nomenclature within the Keweenawan Supergroup of northern Michigan.

and the two formations together are defined as the Bergland Group of the Keweenawan Supergroup. Cannon WF, Nicholson S () Revisions of stratigraphic nomenclature within the Keweenawan Supergroup of northern Michigan. U.S. Geol Surv Bull A1–A8 Google Scholar Chartrand FM, Brown AC () The diagenetic origin of stratiform copper mineralization, Coates Lake, Redstone copper belt, N.W.T., Canada.

U-Pb dates on five zircon fractions within Greenstone Flow give an age of +/ Ma (% probability of fit). Revisions of stratigraphic nomenclature within the Keweenawan Supergroup of northern Michigan, IN Cannon, W.F., and Nicholson, S.W., Contributions to the geology and mineral resources of the Midcontinent Rift System: U.

The White Pine ore deposit and associated mineralisation is hosted by the Mesoproterozoic, Ma, Oronto Group of the Keweenawan Supergroup within the northeast trending, curved, Mid Continent Rift, on the Keweenawan Peninsular of northern Michigan, USA, near the town of White Pine, km NE of Minneapolis-St Paul (#Location: 46° 45' 47"N, 89° 34' 3"W).

U-Pb dates on three zircon fractions within Lake Shore Trap give an age of +/ Ma (68% probability of fit). Revisions of stratigraphic nomenclature within the Keweenawan Supergroup of northern Michigan, IN Cannon, W.F., and Nicholson, S.W., Contributions to the geology and mineral resources of the Midcontinent Rift System: U.

CONTRIBUTIONS TO STRATIGRAPHY CHANGES IN STRATIGRAPHIC NOMENCLATURE BY THE U.S. GEOLOGICAL SURVEY, By GEORGE V.

COHEE and WILNA B. WRIGHT LISTING OF NOMENCLATURAL CHANGES In the following table, stratigraphic names adopted, revised, reinstated, or abandoned are listed alphabetically.

The age of the. Following early suggestions that the Huronian Supergroup of Ontario and western Quebec was equivalent, in a general way to early Proterozoic rocks of northern Michigan, Wisconsin and Minnesota, it.

CONTRIBUTIONS TO STRATIGRAPHY CHANGES IN STRATIGRAPfflC NOMENCLATURE BY THE U.S. GEOLOGICAL SURVEY, By Norman F. Sohl and Wilna B. Wright INTRODUCTION At the 33rd annual meeting of the American Commission on Stratigraphic Nomenclature in Toronto, Canada, Octotwo new ammendments to the Code were approved.

This banner text can have markup. web; books; video; audio; software; images; Toggle navigation. In Michigan, these Paleoproterozoic rocks are termed the Marquette Range Supergroup and the Kona Dolomite, among the oldest of these rocks, hosts a sub-economic concentration of copper.

Stratiform copper sulfide mineralization is within a succession of 6 m of argillite overlain by 9 m of quartzite and capped by 3 m of argillite (Taylor, ). CONTRIBUTIONS TO STRATIGRAPHY CHANGES IN STRATIGRAPHIC NOMENCLATURE BY THE U.S. GEOLOGICAL SURVEY, By GEORGE V.

COHEE, ROBERT G. BATES, and WILNA B. WRIGHT LISTING OF NOMENCLATURAL CHANGES In the following table, stratigraphic names adopted, revised, reinstated, or abandoned are listed alphabetically.

The age of the. The Penokean orogen is the oldest Paleoproterozoic accretionary orogen along the southern margin of Laurentia and is interpreted to have developed in an embayment along the southern margin of the Archean Superior craton (Hoffman,Sims, ).It has generally been extended from Minnesota eastward to the Grenville orogen in the Lake Huron region and southwestward to the.

Because the Powder Mill Group and its lower part, the Siemens Creek Formation, are assigned to Keweenawan Supergroup, it is implied that Kallander Creek Formation, the part of Powder Mill Group, is also assigned to Keweenawan Supergroup.

Kallander Creek Formation not shown on this map. Source: GNU records (USGS DDS-6; Reston GNULEX). Newsletters on Stratigraphy, Vol/3, – Article Stuttgart, November Sequence Stratigraphy: Methodology and Nomenclature Octavian Catuneanu1, William E. Galloway2, Christopher C. Kendall3, Andrew D. Miall4, Henry W.

Posamentier5, André Strasser 6, and Maurice E. Tucker7 With 50 figures and 1 table. CHANGES IN STRATIGRAPHIC NOMENCLATURE A3 and the symbol p will be used. Rock units and events within a major time unit such as W, X, Y or Z, keyed to geochronologic data as available, will be shown on map explanations by simple sequential arrangement.

The previously used age designations for the Precambrian are given. Stratigraphic Guide (Salvador ).1 It is important to note that the nomenclature for each of these three types of stratigraphy is different and follows different rules.

It is impossible within the context of this Handbook chapter to detail all aspects of stratigraphic nomenclature, so only the topics that are most important for scientific. Cannon, W.F., and Nicholson, S.W.,Revisions of stratigraphic nomenclature within the Keweenawan Supergroup of northern Michigan: 35 km-thick cross section of the Midcontinent rift in northern Michigan and Wisconsin: Tectonophys.

12(3). The Animikie Group is a geologic group composed of sedimentary and metasedimentary rock, having been originally deposited between 2, and 1, million years ago during the Paleoproterozoic era, within the Animikie group of formations is geographically divided into the Gunflint Range, the Mesabi and Vermilion ranges, and the Cuyuna the map, the Animikie Group is the dark.

stratigraphic framework, however, was questioned in the s and s (e.g., Boellstorff, a, b), resulting in proposals to abandon the pre-Illinoian stratigraphic nomenclature (e.g., Hall - berg, ; Richmond and Fullerton, ). Since then, further changes to the Quaternary stratigraphic nomenclature in Kansas.

Summary: Group revised to include (ascending) Outer conglomerate, Nonesuch shale, and Freda sandstone. Revision made on basis of lithological and heavy mineral evidence which suggests that Eileen sandstone belongs above Amnicon and includes beds on Middle River and Fish Creek sections which Thwaites () classified as lower Orienta (Bayfield group).

Stratigraphy of pre-Keweenawan rocks in parts of northern Michigan / by: James, H. Published: () Nomenclature of Precambrian rocks in Colorado / by: Tweto, Ogden,Published: ().

These revisions are based on the principles that nomenclature changes will follow the North American Code of Stratigraphic Nomenclature (), and changes will conform to international stratigraphic nomenclature standards as they apply to Kansas.

Background and Justification. Zeller () adopted the two-fold classification published. The Ga Midcontinent Rift of North America is a failed intracontinental rift that was active for ∼25 m.y. Paleomagnetic and geochronologic data from Midcontinent Rift volcanic rocks have yielded a well-resolved apparent polar wander path (APWP) known as the Keweenawan Track, which records dramatic paleogeographic change throughout the life span of the rift.

In the Wisconsin-Michigan border area, the major magnetic reversal occurs within the upper part of the 2- to 4-km-thick Kallander Creek Volcanics, which form the upper formation of the Powder Mill Group (Fig.

3) and are dominated by intermediate to felsic flows (Nicholson et al., ). ELSEVIER Ore Geology Reviews 11 () OREGEOLOGY RE~E\VS Relationship between organic matter and copper mineralization in the Proterozoic Nonesuch Formation, northern Michigan Eileen S. Ho a, Jeffrey U Mauk b " Department of Geological Sciences, University of Michigan, Ann Arbor, MichiganUSA b Geology Department, University of Auckland.

Jacobsville Sandstone is a red sandstone formation, marked with light-colored streaks and spots, primarily found in northern Upper Michigan, portions of Ontario, and under much of Lake d for its durability and aesthetics, the sandstone was used as an architectural building stone both locally and around the United States.Changes in stratigraphic nomenclature by the U.

S. Geological Survey, Bulletin A By: N.F. Sohl and W.B. Wright.CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): This paper outlines Permian nomenclature changes to Zeller () that have been adopted by the Kansas Geological Survey.

The Permian System/Period, Cisuralian Series/Epoch, and Asselian Stage/Age are established at the base of the Bennett Shale Member of the Red Eagle Limestone.