 | Maes, S.M., Tikoff, B., Ferré, E.C., Brown, P.E., Miller Jr., J.D. (2007) The Sonju Lake layered intrusion, northeast Minnesota: Internal structure and emplacement history inferred from magnetic fabrics. Precambrian Research, 157 (1) 269-288 doi:10.1016/j.precamres.2007.02.021 | Journal (article/letter/editorial) | | Research 157 (2007) 269–288 The Sonju Lake layered intrusion, northeast Minnesota: Internal structure and emplacement...University of Wisconsin-Madison, Madison, WI 53706, USA b Department of Geology, Southern Illinois University-Carbondale...62901, USA c Minnesota Geological Survey, University of Minnesota-Duluth, Duluth, MN 55812, USA Received...Abstract The Sonju Lake intrusion (SLI), in northeastern Minnesota, is a layered mafic complex of Keweenawan...paragenesis of the intrusion is recognized as broadly similar to the Skaergaard intrusion, a classic example |  | Park, Y.-R., Ripley, E. M., Miller, J. D., Li, C., Mariga, J., Shafer, P. (2004) Stable Isotopic Constraints on Fluid-Rock Interaction and Cu-PGE-S Redistribution in the Sonju Lake Intrusion, Minnesota. Economic Geology, 99 (2) 325-338 doi:10.2113/gsecongeo.99.2.325 | Journal (article/letter/editorial) | | and Cu-PGE-S Redistribution in the Sonju Lake Intrusion, Minnesota YOUNG-ROK PARK,* EDWARD M. RIPLEY,†...MILLER, JR., Minnesota Geological Survey, 2646 University Avenue West, St. Paul, Minnesota 55114-1057 ...Abstract The Sonju Lake intrusion, part of the 1.1 Ga Midcontinent rift-related Beaver Bay Complex, is a 1...sequence of mafic cumulates located in northeastern Minnesota. Basal melatroctolite and dunite layers are overlain...apatite diorite. Disseminated sulfides in the intrusion have δ34S values that range from –2.2 to 3 per |  | Li, Chusi, Ripley, Edward M., Oberthür, Thomas, Miller, James D., Joslin, Gregory D. (2008) Textural, mineralogical and stable isotope studies of hydrothermal alteration in the main sulfide zone of the Great Dyke, Zimbabwe and the precious metals zone of the Sonju Lake Intrusion, Minnesota, USA. Mineralium Deposita, 43 (1) 97-110 doi:10.1007/s00126-007-0159-x | Journal (article/letter/editorial) | | the precious metals zone of the Sonju Lake Intrusion, Minnesota, USA Chusi Li & Edward M. Ripley & Thomas...Dyke and the precious metals zone of the Sonju Lake Intrusion have, in part, been attributed to the interaction...component was involved in the alteration of the Sonju Lake Intrusion. The strong spatial association of platinum-...Sciences, Indiana University, Bloomington, IN 47405, USA e-mail: cli@indiana.edu C. Li China University of...Germany J. D. Miller Jr Minnesota Geological Survey, St. Paul, MN 55114, USA J. D. Miller Jr : G. D. |  | | Journal (article/letter/editorial) | | Hypabyssal Rocks of the Midcontinent Rift System in Minnesota, and Implications for a Keweenawan Magmatic “Family...Hypabyssal Rocks of the Midcontinent Rift System in Minnesota, and Implications for a Keweenawan Magmatic “Family...Hypabyssal Rocks of the Midcontinent Rift System in Minnesota, and Implications for a Keweenawan Magmatic "Family...Midcontinent Rift along the Min nesota shore of Lake Superior are a distinct suite within the rock associations...which are the voluminous flood basalts surrounding Lake Superior. These basalts are inferred to have formed |  | | Journal (article/letter/editorial) | | minerals Article PGE-Enrichment in Magnetite-Bearing Olivine Gabbro: New Observations from the Midcontinent...Midcontinent Rift-Related Echo Lake Intrusion in Northern Michigan, USA Alexander James Koerber and Joyashish...University, 1903 W Michigan Ave, Kalamazoo, MI 49008, USA; alexander.j.koerber@wmich.edu * Correspondence:... Abstract: The Echo Lake intrusion in the Upper Peninsula (UP) of Michigan, USA, was formed during the...Troctolite is the predominant rock unit in the intrusion, with interlayered bands of peridotite, mafic |  | | Journal (article/letter/editorial) | | differentiation in bimodal suites: application to the Sonju Lake Intrusion–Finland granite system (MN) C. C. Lundstrom...differentiation in bimodal suites: application to the Sonju Lake Intrusion–Finland granite system (MN), International...differentiation in bimodal suites: application to the Sonju Lake Intrusion–Finland granite system (MN) C. C. Lundstrom...Champaign, Champaign, IL, USA ABSTRACT ARTICLE HISTORY The Sonju Lake Intrusion (SLI) is a 1200-meter...1200-meter thick layered mafic intrusion that directly underlies an equally large silicic pluton, the Finland granophyre |  | | Journal (article/letter/editorial) | | River and South Kawishiwi intrusions of the Duluth Complex occurs in a variety of rock types, all produced...in the world. The parental magma for the Eagle intrusion was a high-FeO picrite. Isotopic and trace element...mineralization in the sheet-style intrusions of the Duluth Complex are related in part to sequestration of Ni by early...range of 1.3 to 2 × 106 km3 of mafic rocks in the Lake Superior region (Hutchinson et al., 1990; Cannon...disseminated sulfide occurrences of the Duluth Complex have been known for many years (e.g., Johnson, |  | | Journal (article/letter/editorial) | | AND STRUCTURE OF THE DULUTH COMPLEX PAUL W. WEIBLEN and G. B. MOREY Minnesota Geological Survey, 1633 Eustis...Eustis Street, Saint Paul, Minnesota 55108 ABSTRACT. The Duluth Complex consists of an extensive cap of...Minor peridotite is exposed at the base of the complex near Duluth. Felsic rocks occur as small intrusions...control on the mode of emplacement of the Duluth Complex. Evolution of half-graben structures also provides...the Midcontinent Rift. INTRODUCTION The Duluth Complex, a large body of dominantly mafic igneous rocks |  | | Journal (article/letter/editorial) | | high-Timpact melt sheet that produced the Sudbury Igneous Complex and associated Ni–Cu sulfide ores indicates that...Sciences, Indiana University, Bloomington, IN 47405, USA E-mail: cli@indiana.edu Tel.: +1-812-855-1196 Fax:...element (PGE)enriched layer in the Sonju Lake Intrusion of the Duluth Complex is thought to be due to the attainment...the composition of the parent magma of the Sonju Lake Intrusion the presented equation indicates that sulfide...reasonable parental composition for many Duluth Complex intrusions, can induce sulfide saturation at mixing |  | | Journal (article/letter/editorial) | | mineralization in sheet-like intrusions of the Duluth Complex RI are characterized by elevated bulk rock Cu/Ni...River and South Kawishiwi Intrusions of the Duluth Complex, as well as sulfide mineralization in geometrically...conduit-style deposits in MA the Eagle Intrusion and Tamarack Igneous Complex. These intrusions were emplaced...of the Duluth Complex range from -0.85 to 0.45 ‰ whereas values from the Eagle Intrusion and the Tamarack...Tamarack Igneous Complex range from 0.69 to 1.84 ‰. 65Cu values of the sedimentary rocks range from -0.33 |  | | 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...intrusions. It is a layered mafic-ultramafic intrusion that cuts across the Zimbabwe Archean craton (Figure...amphibole-bearing pegmatoids, amphibole gabbros and magnetite diorites, are common in the marginal zone as irregularly |  | | Journal (article/letter/editorial) | | commonly much more evolved or primitive than bulk intrusion compositions, (b) evolved chilled margins are...Vavukanskii sill, Russia, the Sonju Lake intrusion, USA and the Dovyren intrusion, Russia showing variations...MgO-content in the entire section through the intrusion. Note that the lower chilled margin can be compositionally...sill), more primitive (Sonju Lake intrusion) or more evolved (Dovyren intrusion) than the bulk of the...pigeonite, Cpx — clinopyroxene, Qtz — quartz, Mgt — magnetite, Z — zeolite, Acc — accessories. The thick continuous |  | | Journal (article/letter/editorial) | | University of Illinois Urbana Champaign, Urbana, IL, USA b Center for Microanalysis of Materials, University...University of Illinois Urbana Champaign, Urbana, IL, USA Version of record first published: 19 Jul 2010. To...University of Illinois Urbana Champaign, Urbana, IL, USA; Center for Microanalysis of Materials, University...University of Illinois Urbana Champaign, Urbana, IL, USA Downloaded by [McGill University Library] at 17:41...preferred orientation. For example, amphibole and magnetite crystals growing within the melt-rich hotter end |  | | Journal (article/letter/editorial) | | Urbana–Champaign, 1301 W. Green Street, Urbana, IL 61801, USA Géosciences Environnement Toulouse, CNRS – Université...Geology, Idaho State University, Twin Falls, ID, USA a r t i c l e i n f o Article history: Received...well-characterized magmatic suite from Cedar Butte volcano (ID, USA), as well as a sill with progressive compositional...compositional change within Finland granophyre (Duluth Complex, MN, USA). Both isotopic systems show a significant...Urbana–Champaign, 1301 W. Green Street, Urbana, IL 61801, USA. Tel.: +1 33786272984. E-mail address: zambardi@illinois |  | Bai, Zhong-Jie, Zhong, Hong, Zhu, Wei-Guang, Hu, Wen-Jun, Chen, Cai-Jie (2019) The genesis of the newly discovered giant Wuben magmatic Fe–Ti oxide deposit in the Emeishan Large Igneous Province: a product of the late-stage redistribution and sorting of crystal slurries. Mineralium Deposita, 54 (1) 31-46 doi:10.1007/s00126-018-0801-9 | Journal (article/letter/editorial) | | Fe–Ti oxide deposit hosted by the Wuben mafic intrusion has recently been discovered in the Pan–Xi area...Panzhihua intrusion or other ore-bearing intrusions in this area. The rocks from the Wuben intrusion and MZb...MZb of the Panzhihua intrusion contain compositionally similar silicate minerals and have similar ti...correct, then the shape and volume of the Panzhihua intrusion would be far larger than is currently thought...thought and the genetic model of this combined intrusion would also need to be reconsidered. Miner Deposita |  | | Journal (article/letter/editorial) | | Sierra Foothills gold province, central California, USA: A GIS-based reconnaissance prospectivity analysis—F...the low Ti magnetite-bearing Heff Cu-Au skarn and its associated plutonic rocks, Heffley Lake, south-central...copper-gold-type polymetallic mineralization in the Contact Lake belt, Great Bear Magmatic zone, Northwest Territories...pathways for arsenic release in a coastal watershed, USA—N.K. Foley and R.A. Ayuso Anthropogenic and natural...associated with arsenic-enriched groundwater, Maine, USA—R.A. Ayuso and N.K. Foley 59 77 U-Pb zircon geochronology |  | Li, C., Ripley, E. M., Merino, E., Maier, W. D. (2004) REPLACEMENT OF BASE METAL SULFIDES BY ACTINOLITE, EPIDOTE,CALCITE, AND MAGNETITE IN THE UG2 AND MERENSKY REEF OF THE BUSHVELDCOMPLEX, SOUTH AFRICA. Economic Geology, 99 (1) 173-184 doi:10.2113/gsecongeo.99.1.0173 | Journal (article/letter/editorial) | | EPIDOTE, CALCITE, AND MAGNETITE IN THE UG2 AND MERENSKY REEF OF THE BUSHVELD COMPLEX, SOUTH AFRICA CHUSI...and the Merensky reef in the western Bushveld Complex has produced four common replacements: (1) replacement...by calcite, and (4) replacement of sulfides by magnetite. The first three replacements are directly related...not affected. The replacement of sulfides by magnetite accompanies regional serpentinization superimposed...Introduction The UG2 and Merensky reef of the Bushveld Complex are the major sources of platinum group elements |  | Bai, Zhong-Jie, Zhong, Hong, Li, Chusi, Zhu, Wei-Guang, Hu, Wen-Jun (2016) Association of cumulus apatite with compositionally unusual olivine and plagioclase in the Taihe Fe-Ti oxide ore-bearing layered mafic-ultramafic intrusion: Petrogenetic significance and implications for ore genesis. American Mineralogist, 101 (10) 2168-2175 doi:10.2138/am-2016-5577 | Journal (article/letter/editorial) | | Fe-Ti oxide ore-bearing layered mafic-ultramafic intrusion: Petrogenetic significance and implications for...example is the Taihe intrusion, which is described in this paper. In this intrusion the associated olivine...interpretation that the oxide ores in the Taihe intrusion formed by gravitational accumulation of Fe-Ti... plagioclase, magma differentiation, layered intrusion Introduction Phosphorus is an incompatible element...are the Bushveld, Skaergaard, Kiglapait, and Sonju Lake layered mafic-ultramafic intrusions in which |  | | Journal (article/letter/editorial) | | Accepted Manuscript Magnetite-hosted Cu-PGE and Fe-Sulfide Mineralization in 1078 Ma Layered Mafic Intrusions...Polito, B.T. Karykowski, F.C. Best, A.J. Crawford, Magnetite-hosted Cu-PGE and Fe-Sulfide Mineralization in...disclaimers that apply to the journal pertain. 2 Magnetite-hosted Cu-PGE and Fe-Sulfide Mineralization in...similarities with mineralization in the Stella Intrusion, Navigator is more like Rio Jacaré. 17 18 Jameson...values and Cu-dominated sulfides. 15 16 Three magnetite-related, PGE reef-type prospects from the west |  | | Book | | Elemental Geochemistry of the Xiadong Alaskan-Type Complex in the Southern Central Asian Orogenic Belt Reprinted...Koerber and Joyashish Thakurta PGE-Enrichment in Magnetite-Bearing Olivine Gabbro: New Observations from...Midcontinent Rift-Related Echo Lake Intrusion in Northern Michigan, USA Reprinted from: Minerals 2019...Oxidized Ores into Placers: Case Studies Bushveld Complex, South Africa, and Great Dyke, Zimbabwe Reprinted...ophiolite, stratiform complexes and Ural-Alaskan type intrusion, and sulfides deposits and sulphide deposits in |  | | Journal (article/letter/editorial) | | Jinbaoshan Pt–Pd–sulphide-bearing ultramafic intrusion in SW China with petrogenetic implications Christina...University of South Carolina, Columbia, SC 29208, USA Received 8 July 2004; accepted 6 January 2005 Available...March 2005 Abstract The Jinbaoshan ultramafic intrusion is a member of the late–middle Permian (260 Ma)...hosts an economical Pt–Pd–sulphide deposit. The intrusion consists mainly of wehrlite (92 vol.%), with minor...further divided into type 2a with magnetite rim and type 2b without magnetite rim. Primary chromites, including |  | Karykowski, Bartosz T., Polito, Paul A., Maier, Wolfgang D., Gutzmer, Jens, Krause, Joachim (2017) New insights into the petrogenesis of the Jameson Range layered intrusion and associated Fe-Ti-P-V-PGE-Au mineralisation, West Musgrave Province, Western Australia. Mineralium Deposita, 52 (2) 233-255 doi:10.1007/s00126-016-0655-y | Journal (article/letter/editorial) | | the petrogenesis of the Jameson Range layered intrusion and associated Fe-Ti-P-V-PGE-Au mineralisation...Mesoproterozoic Jameson Range intrusion forms part of the Giles Complex, Musgrave Province, Western Australia...variable amounts of magnetite and ilmenite. Lithologies containing more than 50 vol% magnetite and ilmenite...intrusions, such as the Bushveld Complex. In addition, the intrusion hosts several P-rich zones, one of...from 60 to 61 and from 70 to 75, respectively. Magnetite compositions are characterised by low TiO 2 concentrations |  | | Book | | Open Magma Chamber: The Newark Island Layered Intrusion, Labrador, Canada a MGTePOry A. SHYOCr and Ey...Baltic Shield: Evidence from the Mafic Drusite Complex, Belomorian Mobile Belt, Russia — Evgenii V. Sharkov...Hypabyssal Rocks of the Midcontinent Rift System in Minnesota, and Implications for a Keweenawan Magmatic “Family...cabin on a lake outside Knoxville. He also might occasionally sneak his boat out onto the lake to fish for...Fe/Si relations for Kaapvaal peridotites are more complex (Fig. 5B). There is wide overall scatter in this |  | | Book | | tpa/d SIC SUC USGS/USBM Bushveld Igneous Complex Complex Department of Mines and Geology Department...annum/day Sudbury/Stillwater Igneous Complex Sukinda Ultramafic Complex United States Geological Survey/...perfect circular, 8-km diameter Kondyor Massif intrusion in Russia. Platinum is often found in mining of...colored compounds, and an ability to form stable complex ions. The electrons they use to combine with other...sources of iridium are in the Bushveld igneous complex in South Africa, the large copper–nickel deposits |  | | Journal (article/letter/editorial) | | of the late Permian Panzhihua layered gabbroic intrusion, SW China Kwan-Nang Pang a,⁎, Chusi Li b, Mei-Fu...Indiana University, Bloomington, Indiana 47405, USA a r t i c l e i n f o Article history: Received...Keywords: Mineral composition Fe–Ti oxide ore Layered intrusion Panzhihua a b s t r a c t A systematic study...stratigraphic sections through the Panzhihua intrusion, a layered gabbroic sill of late Permian age that...Emeishan large igneous province, SW China. The intrusion, which is ∼ 19 km long and ∼ 2 km thick, is divided |
|
