 | | Journal (article/letter/editorial) | | University of Washington, Seattle, WA 98195-1310, USA; bwevans@uw.edu (B.W.E.); kuehner@uw.edu (S.M.K.)...previously observed. In samples from the Duluth Complex (Minnesota, USA) containing igneous olivine Fa36–44...ferroan–olivine-bearing samples from the Laramie Complex (Wyoming, USA) show a compositional variability of secondary...Number of Spots Duluth Complex DM561A Bardon Peak Mg–His Mg–His 9 20 Laramie Complex LAC-1B Oxide Body...Results 3.1. Layered Mafic Intrusions 3.1.1. Duluth Complex Evans et al. [26] presented analyses of iron-rich |  | | Journal (article/letter/editorial) | | rocks in the contact aureole of the Duluth Complex, northeastern Minnesota, U.S.A. Edward M. Ripley, Brian...Sciences, Indiana University, Bloomington, IN 47405, USA (Received September 17, 1991; revised and accepted...rocks in the contact aureole of the Duluth Complex, northeastern Minnesota, U.S.A. Chem. Geol. (Isot. Geosci...rocks of the Virginia Formation in northeastern Minnesota range from - 6 8 to -54°00, with H20 contents...Contact metamorphism by mafic magmas of the Duluth Complex has led to devolatilization and loss of ~ 2 |  | | Journal (article/letter/editorial) | | Copyright © 1999 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/99 $20.00 ⫹ .00 Pergamon...Volcanic Group and Related Hypabyssal Sills, Minnesota YOUNG-ROK PARK and EDWARD M. RIPLEY* Department...Indiana University, Bloomington, IN 47405-1403, USA (Received September 14, 1998; accepted in revised...(NSVG) are intruded by plutonic rocks of the Duluth Complex along the unconformity between the NSVG and...chambers, now represented by intrusions of the Duluth Complex, created a dynamic geological environment conducive |  | | Journal (article/letter/editorial) | | Copyright © 2001 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/01 $20.00 ⫹ .00 Pergamon...variations in carbonaceous pelites hosting the Duluth Complex: Implications for metamorphic and metasomatic...Sciences, Indiana University, Bloomington IN 47405, USA Department of Earth Sciences, PO Box 28E, Monash...studies of sulfide mineralization in the 1.1 Ga Duluth Complex have suggested that sulfur, and possibly metals...the Virginia Formation (country rock to the Duluth Complex), ranging from unmetamorphosed through strongly |  | | Report (issue) | | MINNESOTA GEOLOGICAL SURVEY PRISCILLA C. GREW, DIRECTOR BULLETIN 47 BIBLIOGRAPHY OF MINNESOTA GEOLOGY...UNIVERSITY OF MINNESOTA ST. PAUL· 1987 ISSN 0076-9169· ISBN 0-934938-02-04 The University of Minnesota is committed...references to the geologic literature on the State of Minnesota issued from 1981 through 1985, as well as omissions...omissions from the previous two bibliographies of Minnesota geology: Bulletin 34 (published in 1951), with...sources; usage in the index reflects current Minnesota Geological Survey style. The last bibliography |  | | Report (issue) | | BIBLIOGRAPHY OF MINNESOTA 1951-1980 GEOLOGY ves ai é Lita: ae i if “Pe va MINNESOTA GEOLOGICAL...DIRECTOR BULLETIN BIBLIOGRAPHY SURVEY 46 OF MINNESOTA GEOLOGY 1951-1980 COMPILED G.B. MOREY, NANCY...NANCY BY BALABAN, AND LYNN Gn UNIVERSITY OF MINNESOTA ST. PAUL e 1981 SWANSON ISSN 0076-9169 @...@ ISBN 0-934938-01-6 The University of Minnesota is committed to the policy that all persons shall have...bibliography brings Minnesota Geological Survey Bulletin 34, ‘‘Bibliography of Minnesota Geology,’’ by T |  | | Journal (article/letter/editorial) | | River and South Kawishiwi intrusions of the Duluth Complex occurs in a variety of rock types, all produced...mineralization in the sheet-style intrusions of the Duluth Complex are related in part to sequestration of Ni...The disseminated sulfide occurrences of the Duluth Complex have been known for many years (e.g., Johnson...Ni-Cu-PGE mineralization found in the Duluth Complex of Minnesota and the Eagle deposit of Michigan (Fig...of the Marathon deposit found in the Coldwell Complex is described by Good and Crockett (1994). Bakheit |  | Benkó, Zsolt, Mogessie, Aberra, Molnár, Ferenc, Krenn, Kurt, Poulson, Simon R., Hauck, Steven, Severson, Mark, Arehart, Greg B. (2015) Hydrothermal alteration and Cu–Ni–PGE mobilization in the charnockitic rocks of the footwall of the South Kawishiwi intrusion, Duluth Complex, USA. Ore Geology Reviews, 67. 170-188 doi:10.1016/j.oregeorev.2014.11.010 | Journal (article/letter/editorial) | | footwall of the South Kawishiwi intrusion, Duluth Complex, USA Zsolt Benkó a,⁎, Aberra Mogessie a, Ferenc... NV 89557-0138, USA d Natural Resources Research Institute, University of Minnesota, 5013 Miller Trunk...Trunk Highway, Duluth, MN 55811-1442, USA b a r t i c l e i n f o Article history: Received 19 February...Available online 3 December 2014 Keywords: Duluth Complex South Kawishiwi intrusion Charnockite Hydrothermal...Mesoproterosoic (1.1 Ga) South Kawishiwi intrusion of the Duluth Complex, the primary metamorphic mineral assemblage |  | Walton-day, Katherine, Filipek, Lorraine H., Papp, Clara S.E. (1990) Mechanisms controlling Cu, Fe, Mn, and Co profiles in peat of the Filson Creek Fen, northeastern Minnesota. Geochimica et Cosmochimica Acta, 54 (11) 2933-2946 doi:10.1016/0016-7037(90)90111-w | Journal (article/letter/editorial) | | in peat of the Filson Creek Fen, northeastern Minnesota KATHERINEWALTON-DAY, LORRAINEH. FILIPEK,* and...MS 973, Denver Federal Center, Denver, CO 80225, USA (Received July 18, 1989; accepted in revised form...Abstract-Filson Creek Fen, located in northeastern Minnesota, overlies a Cu-Ni sulfide deposit. A site in the...Inc., 1600Stout Street,Suite800, Denver,CO 80202, USA. 2933 processes controlling metal mobility in organic...CuNi sulfide mineral deposit in northeastern Minnesota, (2) to determine the key geochemical processes |  | | Journal (article/letter/editorial) | | Bedrosian United States Geological Survey, Denver, CO, USA a r t i c l e i n f o Article history: Received...conductivity within the mid-continent is imaged in Minnesota, Michigan, and Wisconsin where it is coincident...conductive Paleoproterozoic metasedimentary rocks in Minnesota (MN), Wisconsin (WI), and Michigan (MI), and I...early to late Archean gneiss (3.5–2.6 Ga) of the Minnesota river valley terrane (Sims, 1980). Sims et al...Abbreviated terranes or sub-provinces include the Minnesota River Valley terrane (MRVT), the Becker embayment |  | | Report (issue) | | THE COPPER-NICKEL STUDY REGION, NORTHEASTERN MINNESOTA By Donald I. Siegel and Donald W. Ericson U...Open-File Report Prepared in cooperation with Minnesota Environmental Quality Board Copper-Nickel Study...Geological Survey 702 Post Office Building St. Paul, Minnesota 55101 CONTENTS Conversion table..............the Copper-Nickel study region, northeastern Minnesota...................... in back Map showing location...mean monthly precipitation recorded at Babbitt, Minnesota.............................. Hydrographs showing |  | | Journal (article/letter/editorial) | | IGNEOUS ROCKS AT THE BABBITT Cu-Ni DEPOSIT, DULUTH COMPLEX, MINNESOTA, U.S.A. EDWARD Department of M. RIPLEY...igneous rocks at the Babbitt Ni deposit, Duluth Complex, Minnesota, U.S.A. Chem. Geol. (Isot. Geosci. Sect...igneous rocks of the Babbitt Cu-Ni deposit (Duluth Complex), as well as pelitic metasediments (Virginia...carbon in the igneous sequence, suggest that Duluth Complex melts were contaminated by carbon derived from...deposits occur within mafic rocks of the l.l-Ga Duluth Complex. The deposits are included within a class known |  | Labotka, Theodore C., Papike, J. J., Vaniman, D. T., Morey, G. B. (1981) Petrology of contact metamorphosed argillite from the Rove Formation, Gunflint Trail, Minnesota. American Mineralogist, 66 (1-2) 70-86 | Journal (article/letter/editorial) | | metamorphosedargillite from the Rove Formation, Gunflint Trail. Minnesota THeonone C. Lesorre. J. J. PAprKE.D. T. VeNnaaN'...Survey St. Paul, Minnesota 55108 Abstract The contactmetamorphicefects of the Duluth Complex on the argillaceousRove...hyperstheneassemblages occur at the contact with the Duluth Complex. The pressure,P"oria,of metamorphismis estimated...the iron-formation. Introduction -l The Gy Duluth Complex in northeasternMinnesotaintruded an -2 Gy sequenceof...Formations).The contact metamorphic effects of the Duluth Complex on the iron-formation have been extensivelystudied |  | | Journal (article/letter/editorial) | | IsotopicStudiesof the Dunka Road Cu-Ni Deposit, Duluth Complex, Minnesota EDWARD M. RIPLEY Department of Geology...troctolitic rocksof the southernportionof the Duluth Complex,Minnesota.Sulfideminerals,principally pyrrhotite...relatively small Cu-Ni sulfideoccurrence currencesin the Duluth Complexare limited. Sixsul- wasundertaken.The Dunka...the processes Lakes-Kawishiwiportion of the Duluth Complex, of ore formation were similar for the two...t make up the TroctoliticSeformationin the Duluth Complex. ries in the Hoyt Lakes-Kawishiwiarea (Bonnichsen |  | Barkov, Andrei Y., Nikiforov, Andrey A., Barkova, Larisa P., Martin, Robert F. (2022) Occurrences of Pd–Pt Bismuthotellurides and a Phosphohedyphane-Like Phase in Sulfide Veins of the Monchepluton Layered Complex, Kola Peninsula, Russia. Minerals, 12 (5) 624 doi:10.3390/min12050624 | Journal (article/letter/editorial) | | Phase in Sulfide Veins of the Monchepluton Layered Complex, Kola Peninsula, Russia Andrei Y. Barkov 1, *,...of massive sulfides in the Monchepluton layered complex, Kola Peninsula, Russia. These veins consist of...Phase in Sulfide Veins of the Monchepluton Layered Complex, Kola Peninsula, Russia. Minerals 2022, 12, 624...adits in the Monchepluton layered basic–ultrabasic complex has led to the discovery of a member of the py... in the Monchepluton layered mafic–ultramafic complex of Paleoproterozoic (~2.5 Ga) age [1,2]. We explore |  | | Report (issue) | | The Stillwater Complex* southwestern Montana ....... 8 The Duluth Complex, Minnesota .................. 9 Crillion-La Perouse Complex, Alaska ............ 10 Goodnews Bay, Alaska ....................the Stillwater Complex, Mont.; Duluth Gabbro Complex, Minn.; and CrillionLa Perouse Complex, Alaska, virtually...base and precious metals but that also contain complex telluride and bismutho-telluride mineralization...Deposits in South Africa The Bushveld Igneous Complex, a stratiform intrusion, covers an area of 260 |  | | Journal (article/letter/editorial) | | Louis and Lake Counties Minnesota MIKE HEDTKE PO Box 258 Clearbrook, Minnesota 56634-9649 All mineral...exposed along the Knife River, St. Louis County, Minnesota. Fieldwork during fall 2000 and winter 2001...flow exposed along the Knife River, north of Duluth, Minnesota. Prehnite and prehnite with native copper...first 30 kilometers of the lake shore north of Duluth, I chose the Sucker and Knife rivers to explore... This area is reached by proceeding north from Duluth on the four-lane section of State Highway 61 to |  | | Report (issue) | | from the northwestern part of the Duluth complex, northeastern Minnesota By J.B. McHugh* and H.v. Alminas*...in the northwestern part of the Duluth Complex, northeastern Minnesota .......... 2 TABLES Table 1...from the northwestern part of the Duluth Complex, northeastern Minnesota Table 2. .... 4 Gold contents...from the northwestern part of the Duluth Complex, northeastern Minnesota ........................ 10 ... INTRODUCTION The Duluth complex encompasses approximately 6475 km2 of Upper Precambrian anorthositic |  | | Journal (article/letter/editorial) | | North University Ave, Ann Arbor, MI 48109-1005, USA a r t i c l e i n f o Article history: Received...north shore of Lake Superior, particularly in Minnesota, exhibits numerous outcrops associated with the...outcropping unit on the north shore of Lake Superior in Minnesota, is dominated by tholeiitic basalts (Green, 1982...notably the gabbroic Duluth Complex to the north of the NSVG, and the Beaver Bay Complex just north of Silver...Silver Bay, Minnesota, in addition to many other smaller intrusive events dominated by local diking. Associated |  | | Report (volume) | | metasedimentary rocks. The long axis of this intrusive complex is alined between two .obliquely converging fault...(mostly postmineralization) cut the intrusive complex and adjacent wall rocks. Potassium-argon ages,...to be a -80 mesh screen fraction from which the clay-size material was decanted. Most of these fractions...hydrochloric acid for 2 hours; (3) rinse, allowing the clay-sized material to escape; (4) remove the coarse...of 50 m below the bed of Deer Creek. Minnesota. The Duluth Complex of mafic igneous rocks includes numerous |  | | Report (issue) | | in the lower left include the shaft, the mill complex, and offices. Photograph by Michael L. Zientek...showing the Rustenburg Layered Suite of the Bushveld Complex, South Africa, the surface trace of significant...Karee Mine in the western part of the Bushveld Complex, South Africa....................................Geologic map and cross section of the Stillwater Complex, Montana...........................N19 Photograph...geology along the western margin of the Duluth Complex, Minnesota, with the surface projection of nicke |  | | Journal (article/letter/editorial) | | UNCONFORMITY-TYPE IN EAST-CENTRAL EDWIN URANIUM DEPOSITS MINNESOTA ULLMER RockyMountainEnergyCompany,10 LongsPeakDrive...Colorado80020 Introduction East-central Model Deposits Minnesota is one of the few areas in Investigationssince...exploration unstableuraniummarket of recent years. in Minnesota;they includeKey Lake, MidwestLake, Lower Prot...in east-central Minnesota are summarized in northern Great Lakesregion in Minnesota,Wiscon- Table I...erosionof the ore depositsin the in east-central Minnesota in 1976, as well as in regolith-relateddeposits |  | | Report (issue) | | GEOLOGY AND GEOCHRONOLOGY OF MINNESOTA UNIVERSITY OF MINNESOTA MINNESOTA GEOLOGICAL SURVEY GEORGE M...The Precambrian Geology and Geochronology of Minnesota BY SAMUEL S. GOLDICH, ALFRED O. NIER, HALFDAN...KRUEGER MINNEAPOLIS • 1961 THE UNIVERSITY OF MINNESOTA PRESS PRINTED IN THE UNITED STATES OF AMERICA...and made the project possible. In addition the Minnesota Geological Survey supported the project, particularly...publication. The Graduate School of the University of Minnesota also made notable contributions of funds at critical |  | | Book | | RIDGE 1402 NW 18th Street Gainesville, FL 32605, USA GUNTHER JOHN Professor Dr. RICHARD H. SILLITOE...from the South Kawishiwi Intrusion, Duluth Complex, Minnesota, USA M. FOOSE and P. WEIBLEN(With 5 Figures)...Genesis with Special Reference to the Duluth Complex, Minnesota E.M. RIPLEY (With 10 Figures) ..........Geochemistry of the Sudbury Igneous Complex: A Model for the Complex and Its Ores A. J. NALDRETT (With...271 Genetic Aspects of the Recsk Mineralized Complex, Hungary Cs. BAKSA(With 11 Figures) .......... |  | | Journal (article/letter/editorial) | | Old Main, 1 University Dr., Pembroke, NC 28372, USA; chaumba@uncp.edu Received: 24 May 2017; Accepted:...Great Dyke, Bushveld Complex in South Africa, the Stillwater Complex in Montana, USA, and the Noril’sk Ni-Cu-(PGE)...Bushveld Complex [7] and in the J-M reef of the Stillwater Complex [8–11]. In the Stillwater Complex, researchers... similar to those described from the Bushveld Complex [55,56]. The footwall fault (Figure 2b) is encountered...at Fayetteville State University, North Carolina, USA [58]. For all silicate samples, the Hyperprobe was |
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