 | | Journal (article/letter/editorial) | | com/locate/sedgeo The 1.1-Ga Midcontinent Rift System, central North America: sedimentology of two deep boreholes, Lake...Minnesota-Duluth, Duluth, MN, 55812, USA b University of Wisconsin-Superior, Superior, Wl, USA Accepted 20 August 2001...Abstract The Midcontinent Rift System (MRS) of central North America is a 1.1-Ga, 2500-km long structural feature...referred to as the St. Amour well, and the nearby Hickey Creek well drilled by Cleveland Cliffs Mining Services...entirety of the stratigraphic succession of the Hickey Creek core correlates very well with the upper |  | | Report (volume) | | Precambrian Rocks in the Cordes Area, Yavapai County, Arizona By C. A. ANDERSON Ā· GEOLOGICAL SURVEY...---------------------------------------------------Hickey Formation _ -------------------------------------------Reddish...PLATE 1. Geologic map of the Cordes area, Yavapai County, Ariz ____________________________________________...______ 6. Chemical analyses of volcanic rocks in the Hickey Formation -------------------------------------------... PRECAMBRIAN ROCKS IN THE CORDES AREA, YAVAPAI COUNTY, ARIZONA . BY C. A. ANDERSON ABSTRACT The Precambrian |  | | Report (issue) | | Fall 1998 Field Trip Phoenix Metro Area, Maricopa County, Arizona Leader: Bob Leighty Saturday October...Geological Society P. 0. Box 40952, Tucson Arizona, USA THIS PAGE INTENTIONALLY BLANK CONTENTS Contents...Proterozoic metamorphic rocks. Includes Squaw Peak, North Mountain, Shaw Butte. Camelback Mountain. A distinctive...4. View to the north from Dobbins Lookout across the Phoenix metropolitan area. North Phoenix area....including the Phoenix Mountains, Union Hills, and North Union Hills. Many of the tilted, fault-block ranges |  | | Journal (article/letter/editorial) | | % from tin slag refining and 10 % from secondary mine concentrates. Due to rapid industrialisation and...Canada account for about 92 and 7 % of Nb world mine production, respectively. Since the bulk of the...resistivity (nĪ©m) at 25 Ā°C Thermal conductivity W/[m K] Ta Nb 73 180.94788 2,996 5,425 16.7 145 134 57...the start-up time for new operations. The Kenticha mine (Ethiopia) is a past producer that may re-enter...studies on new developments) are required in any mine as price levels vary for each deposit and are dependent |  | | Report (volume) | | Proterozoic Geology of the Brady Butte area, Yavapai County, Arizona U.S. o crq oo no GEOLOGICAL SURVEY... Proterozoic Geology of the Brady Butte area, Yavapai County, Arizona I By PHILIP M. BLACET I U.S. GEOLOGICAL...1937Proterozoic geology of the Brady Butte area, Yavapai County, Arizona (U.S. Geological Survey Bulletin 1548)...rocks _________________________________________ 50 Hickey Formation __________________________________._... Geologic map of the Brady Butte area, Yavapai County, Arizona ______________________ 2. Generalized |  | | Journal (article/letter/editorial) | | SkarnDeposit, OkanoganCounty, Washington ROBERTJ. HICKEY III Departmentof Geography,Universityof Idaho,Moscow...generalgeologyof the deposit(Hickey,1991).These threestudies,andanunpublished M.S.thesis(Hickey, 1990), are the first...Two major tectoniceventshave been recognized in north-centralWashington(Orr and Cheney, 1987). The first...which are part of the 3, and the east-west and north-south cross sections southernextensionof the Omenica...Quesnellia terrane sedi- foundwithin the upper unit (Hickey, 1990). mentaryrocksof the AnarchistGroup.Directly |  | Clark Maroun, Lindsey R., Cline, Jean S., Simon, Adam, Anderson, Page, Muntean, John (2017) High-Grade Gold Deposition and Collapse Breccia Formation, Cortez Hills Carlin-Type Gold Deposit, Nevada, USA. Economic Geology, 112 (4) 707-740 doi:10.2113/econgeo.112.4.707 | Journal (article/letter/editorial) | | Cortez Hills Carlin-Type Gold Deposit, Nevada, USA Lindsey R. Clark Maroun,1,2 Jean S. Cline,1,ā Adam...tremolite, and organic material, and minor to trace K-feldspar, muscovite, and biotite. Acidic ore fluids sulfidized...Geology of the Cortez District The western margin of North America formed in response to passive margin rifting...western margin of North America with the subduction of the Farallon plate beneath the North American plate...interpreted to have coupled to the bottom of the North American plate during shallow subduction, beginning |  | | Journal (article/letter/editorial) | | Ag, 5.4% Pb, and 11.1% Zn). It is situated 25 km north of Mount Isa and is hosted by the ~1655 Ma Urquhart...Australia. It is situated 25 km north of the Mount Isa deposit and 2 km north of the Hilton deposit. All three...LUCY H. CHAPMAN is subdivided into three main north-southātrending structural belts separated by regionally...Page and Bell, 1986; OāDea et al., 1997; Bell and Hickey, 1998). More recently, only D2 to D3 have been...Diamantina orogeny (OāDea et al., 1997; Bell and Hickey, 1998). D1 is associated with local thrusting, |  | Zhu, Di-Cheng, Zhao, Zhi-Dan, Niu, Yaoling, Dilek, Yildirim, Wang, Qing, Ji, Wen-Hua, Dong, Guo-Chen, Sui, Qing-Lin, Liu, Yong-Sheng, Yuan, Hong-Lin, Mo, Xuan-Xue (2012) Cambrian bimodal volcanism in the Lhasa Terrane, southern Tibet: Record of an early Paleozoic Andean-type magmatic arc in the Australian proto-Tethyan margin. Chemical Geology, 328. 290-308 doi:10.1016/j.chemgeo.2011.12.024 | Journal (article/letter/editorial) | | of Geology, Miami University, Oxford, OH 45056, USA e Xi'an Institute of Geology and Mineral Resource...December 2011 Available online 8 January 2012 Editor: K. Mezger Keywords: Whole-rock geochemistry Zircon UāPb...contemporaneous. The metabasalts are mostly high-K calc-alkaline, enriched in Th, U, and light rare earth...basalts. The silicic metavolcanic rocks are high-K calc-alkaline and low in Nb and Zr. The metabasaltic...Cawood et al. (2007) argued for the presence of the North India Orogen during the Early Paleozoic (530ā490 |  | | Journal (article/letter/editorial) | | West Virginia University, Morgantown, WV 26506, USA Petroleum Engineering Department, China University...online 25 July 2012 The success of shale gas in North America has attracted increased interest in āāunconventionalāā... shale-gas production has increased rapidly in North America. Opportunities for increased shale-gas production...Beechurst Ave., PO Box 6300, Morgantown, WV 26505, USA. Tel.: Ć¾ 1 304 293 9660; fax: Ć¾ 1 304 293 6522. E-mail...Barnett Shale of Texas (Loucks and Ruppel, 2007; Hickey and Henk, 2007; Singh, 2008; Kale et al., 2010) |  | | Journal (article/letter/editorial) | | (Prichard et al. 2013). However, these ideal ļ¬eld and mine settings are lacking for most granite intrusions...3ā 4 km across, elliptical in shape, elongated northāsouth and generally forms country of lower elevation...cordierite, minor garnet, and variable abundance of K-feldspar phenocrysts; the Kerrisdale microgranite has...siltstone with a distinctive black shale to the north. Neil Phillips Determining the shape of an intrusion...separate Kerrisdale microgranite pluton. To the north and northeast is the Goulburn River separating the |  | | Journal (issue) | | I / V I Jl \ j l Wayne & Dona Leicht, 875 North Pacific Coast Highway, Laguna Beach, CA 926!: ,|...Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...Volume Thirty, Number Five Articles The Mex-Tex mine, Bingham, N ew M exico............................Van Pelt. Long thought to be from the "Sapucaia mine," this speciĀ men and others (representing the first...quartz crystals) actually came from the Berilo Branco mine. See the article beginning on page 361.___________ |  | RUBENACH, M, FOSTER, D, EVINS, P, BLAKE, K, FANNING, C (2008) Age constraints on the tectonothermal evolution of the Selwyn Zone, Eastern Fold Belt, Mount Isa Inlier. Precambrian Research, 163 (1) 81-107 doi:10.1016/j.precamres.2007.08.014 | Journal (article/letter/editorial) | | dominant S2a regional foliation formed as upright northāsouth structures. Local overturning of D2 structures...produced steep upright folds and crenulations with northānorthwest and northeast trending axial surfaces...and 400ā500 MPa in the migmatitic sillimanite K-feldspar zone at the Cannington and Osborne mines. Previous...(2006). Also shown are locations of generalized northāsouth and eastāwest FIAās (foliation intersection...on Fig. 2) are as follows: 299 and 890, Osborne Mine; 96-60, Fairmile; 482, Guilded Rose. Oliver et |  | Hong, Di, Niu, Yaoling, Xiao, Yuanyuan, Sun, Pu, Kong, Juanjuan, Guo, Pengyuan, Shao, Fengli, Wang, Xiaohong, Duan, Meng, Xue, Qiqi, Gong, Hongmei, Chen, Shuo (2018) Origin of the Jurassic-Cretaceous intraplate granitoids in Eastern China as a consequence of paleo-Pacific plate subduction. Lithos, 322. 405-419 doi:10.1016/j.lithos.2018.10.027 | Journal (article/letter/editorial) | | eastern continental China (from Northeast China to North China and to Southeast China and are distributed...apparent linear chain of NW-SE trending located north of the Qinling-Dabie Orogen, extending to the Xiaoqinling...outcropping in response to the continued South-North China converge since the Mesozoic (Niu et al., 2015)...plutonic āchainā, that is parallel to and located north of, ACCEPTED MANUSCRIPT the older (~ 230 Ma) Qinling-Dabie...exhumation and exposure because of continued South-North China convergence since the PT Mesozoic, as evidenced |  | | Report (issue) | | ....... Mineralogy.......................... K-Feldspar................ Plagioclase............... Quartz...Pegmatite Commodities..................... Potassium Feldspar........ Quartz.................... Mica.........FIGURES Frontispiece The MacKenzie Lake (Gunter) Feldspar Mine (Lot 27, Hastings Road West Sabine Township)...Woodcox Mine (Monteagle Township). .................3-4 2 (a). Photo: Cameron And Aleck Mine (Murchison.... .. . . . . ...........7-8 2(b). Photo: Card Mine (Portland Township). . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | caused ambiguities in the literature (cf. Bell and Hickey, 1998; MacCready et al., 1998; Rubenach and Lewthwaite...31ā33 is also shown, collected south of the Selwyn mine. M. Sayab / Precambrian Research 175 (2009) 169ā186...Schreurs, 1987; Connors and Lister, 1995; Bell and Hickey, 1998; Goleby et al., 1998; MacCready et al., 1998;...7578453 7578386 7578378 7579614 Selwyn Mine Selwyn Mine Selwyn Mine Western Domain Western Domain and... Osborne in the south and Selwyn-Starra in the north (Fig. 1). Metasedimentary rocks include pelites |  | | Journal (article/letter/editorial) | | Tertiary) porphyry copper province of southwestern North America as previously presumed. These Paleoproterozoic...assembled and accreted to the Archean nucleus of North America by ~1.68 Ga. The Paleoproterozoic age for...shows that the Laramide province of southwestern North America first developed its copper metallogenic...for 96% of the copper endowment of southwestern North America (Leveille and Stegen, 2012). The remainder...been recognized previously in the southwestern North America province (Lindberg, 1986, 1989; Titley and |  | Haraguchi, Satoru, Ishii, Teruaki, Kimura, Jun-Ichi, Ohara, Yasuhiko (2003) Formation of tonalite from basaltic magma at the Komahashi-Daini Seamount, northern Kyushu-Palau Ridge in the Philippine Sea, and growth of Izu-Ogasawara (Bonin)-Mariana arc crust. Contributions to Mineralogy and Petrology, 145 (2) 151-168 doi:10.1007/s00410-002-0433-y | Journal (article/letter/editorial) | | escarpments were observed (Fig. 1b; Usui et al. 1997). The KāAr ages of tonalites dredged by the GDP cruises are...diorite and porphyritic diorite (Shiki et al. 1985). KāAr ages of these TTGs are about 37ā38 Ma (Shibata...Geochron Laboratories, Cambridge, Massachusetts, USA. The isotope data are presented in Table 1. Mineral...as a secondary mineral. Some samples include K-feldspar. Plagioclase occurs as prismatic, euhedral to...The modal abundance of plagioclase is 40ā60%. K-feldspar occurs in some samples as subhedral phenocrysts |  | | Journal (article/letter/editorial) | | Copyright 0 1996 Eisevier Science Ltd Printed in the USA. All rights reserved 0016-7037/96 $15.00 + .OO Pn...Tallahassee, FL 32301, USA %JSGS, 345 Middlefield Road, Mail Stop 420, Menlo Park, CA 94025, USA (Received January...leakage that moves downward through the lake bottom. North of the lake near the 1PNB site the direction of...inorganic carbon.] SITE Temp āC pH DO Ca Mg Na K Cl SO, CDIC SiO, 6180 6D RAINFALL 21. 4.36...treatments were similar, with a difference of less than k-0.09%. Other studies have also reported similar strontium |  | | Report (issue) | | west of Highway 38 Freebern mica mine Mobey (Burnham) mine Enterprise mine Sand Road (Card) quarry Dwyer...mica mine Richardson feldspar mine Glendower iron mine Road-cut at km 10.9, Westport Road Hickey-Murphy...Hickey-Murphy lead mine Road-cuts at km 16.7, Westport Road McLaren phosphate mine Long Lake blue calcite occurrence...Lake zinc mine Gabbro quarry Road-cut on Highway 38 at km 57.6 Eagle Lake (Blessington) mine Sharbot Lake...(Frontenac Draper Lake) lead mine Lacey mica mine Stoness mine Matthews mine Feldspar quarry on Kingston-Westport-Perth |  | | Journal (article/letter/editorial) | | restricted to specific areas of the trend, are from north to south: (1) 40.3 to 39.0 Ma rhyolite to dacite...suites would have been emplaced only 12 to 15 km north of the northern edge of the source pluton, would...important of several major gold-producing areas of north-central Nevada and contains the greatest concentration...western North America (Fig. 1). The trend lies near the Proterozoic rifted margin of the North American...great chain of Cordilleran batholiths of western North America that are broadly contemporaneous with subduction |  | | Journal (issue) | | Farn, D.G. Kent, RK. Mitchell Honorary Fellows R.T. Liddicoat [nr., E. Miles, K. Nassau Honorary Life...P. Dwyer-Hickey, R. Fuller, B. Jackson, J. Kessler, G. Monnickendam, L. Music, J.B. Nelson, K. Penton...CH. Winter Branch Chairmen Midlands: J.W. Porter North West: 1. Knight Scottish: J. Thomson Examiners AJ...rubellite crystal, 75 mm long, from the Cruzeiro mine, Minas GĆ©rais, Brazil. See 'The location, geology...tourmaline-bearing pegmatites mainly consist of K-feldspar variably perthitized, albite, muscovite and milky | | | Report (issue) | | of Highway Freebern mica mine 8 y Mobey (Burnham) mine 9 Enterprise mine 10 38 38 Sand Road (Card)...(Bedford) mica mine 12 13 14 14 1D 1 16 16 17 Richardson feldspar mine Glendower iron mine Road-cut at...Westport Road Hickey-Murphy lead mine Road-cuts at km 16.7, Westport Road McLaren phosphate mine Long Lake...Lake blue calcite occurrence Long Lake zinc mine Gabbro quarry Road-cut on Highway 38 at km 57.6 17 brucite...brucite occurrence 18 Eagle Lake (Blessington) mine 18 Sharbot Lake road-cuts on Highway 19 ie, |  | Milton, Jack E., Hickey, Kenneth A., Gleeson, Sarah A., Falck, Hendrik, Allaz, Julien (2017) In Situ Monazite Dating of Sediment-Hosted Stratiform Copper Mineralization in the Redstone Copper Belt, Northwest Territories, Canada: Cupriferous Fluid Flow Late in the Evolution of a Neoproterozoic Sedimentary Basin. Economic Geology, 112 (7) 1773-1806 doi:10.5382/econgeo.2017.4529 | Journal (article/letter/editorial) | | Neoproterozoic Sedimentary Basin Jack E. Milton,1 Kenneth A. Hickey,1,ā Sarah A. Gleeson,2,3,4 Hendrik Falck,5 and...Massachusetts, Amherst, Massachusetts 01003ā9297, USA Abstract The 300-km-long Redstone copper belt in...diagenetic mineral association with dolomite, K-feldspar, albite, quartz, monazite, apatite, and pyrite...minor chalcopyrite), calcite, dolomite, quartz, K-feldspar, and albite were also deposited in rare bedding-parallel...University of Colorado, Boulder, Colorado 80309ā0399, USA. doi: 10.5382/econgeo.2017.4529 0361-0128/17/1773-34 |  | Hickey, Leo J., Johnson, Kirk R., Dawson, Mary R. (1988) The Stratigraphy, Sedimentology, and Fossils of the Haughton Formation: A Post-Impact Crater-Fill, Devon Island, N.W.T., Canada. Meteoritics, 23 (3) 221-231 doi:10.1111/j.1945-5100.1988.tb01284.x | Journal (article/letter/editorial) | | (1988) Ā© Meteoritical Society, 1988. Printed in USA The Stratigraphy, Sedimentology, and Fossils of...Crater-Fill, Devon Island, N.W.T., Canada LEO J. HICKEY, KIRK R. JOHNSON,l AND MARY R. DAWSON 2 'Department...Geophysics, Yale University, New Haven, CT 06511 USA -Section of Vertebrate Fossils, Carnegie Museum of...of Natural History, Pittsburgh, PA 15213 USA (Received 5 April 1988; accepted in revised form 7 June...nearly circular structure lying at 75Ā°22'N, 80 in north central Devon Island of the Canadian Arctic Archipelago |
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