 | | Report (issue) | | Geology and Ore Deposits of the Palmer Quadrangle, Marquette County, Michigan GEOLOGICAL SURVEY PROFESSIONAL...cooperation with the Geological Survey Division of the Michigan Department of Natural Resources PAPER 769 Bedrock...Geology and Ore Deposits of the Palmer Quadrangle, Marquette County, Michigan By JACOB E. GAIR With a section...section on THE EMPIRE MINE By TSU-MING HAN, CLEVELAND CLIFFs IRON CoMPANY GEOLOGICAL SURVEY PROFESSIONAL...cooperation with the Geological Survey Division of the Michigan Department of Natural Resources A1iddle Precambrian |  | | Book | | Mineralogy of Michigan by E. W. Heinrich updated and revised • by George W. Robinson M By E W~ Hellnr]ch...Museum Michigan Technological University Houghton, Michigan 49931 2004 © MINERALOGY OF MICHIGAN 3 FOREWORD...FOREWORD Michigan has a long and varied geologic history that includes repeated episodes of volcanism...before the first Europeans set foot here. When Michigan became a state in 1837, one of the first actions...and we continue to learn more about them today. Michigan minerals helped to build the state and nation |  | | Report (issue) | | (CaBSiO4OH) vesicle filling from a basaltic Houghton County lava flow. Small specks of native copper occur...the surface and between the nodular masses. The Michigan Bicentennial symbol (back cover) incorporates...Survey Division BULLETIN 6 THE MINERALOGY OF MICHIGAN by E. Wm. Heinrich Professor of Mineralogy and...University of Michigan Ann Arhor, Michigan Lansing, Michigan 1976 STATE OF MICHIGAN WILLIAM G. Mrr...State of Michigan CL '48 s.321.6. Printed by Speaker-Hines and Thomas, Inc., Lansing, Michigan. Available |  | | Journal (article/letter/editorial) | | Geology, The University of Georgia, Athens, GA 30602, USA ' ABSTRACT The Protogine Zone comprises a system...Textural relations of AI,Si05 polymorphs and chloritoid suggest that dated fabrics formed during exhumation...the Haile Mine and Graves Mts in the southern Appalachians, and the Mono County Andalusite Mine and Champion...Champion Mine in the White Mts, California (Espenshade & Potter, 1960; Wise & Loh, 1976). Some of these...granofels. The latter locally contains kyanite, chloritoid, rutile, pyrite, topaz and Ihazulite or other |  | AUGIER, R., AGARD, P., MONIE, P., JOLIVET, L., ROBIN, C., BOOTH-REA, G. (2005) Exhumation, doming and slab retreat in the Betic Cordillera (SE Spain): in situ40Ar/39Ar ages and P-T-d-t paths for the Nevado-Filabride complex. Journal of Metamorphic Geology, 23 (5) 357-381 doi:10.1111/j.1525-1314.2005.00581.x | Journal (article/letter/editorial) | | followed by late-orogenic extension after c. 35–30 Ma (Platt et al., 1998; Jolivet & Faccenna, 2000). The causes...of thickened 357 358 R. AUGIER ET AL. crust (Platt & Vissers, 1989; Vissers et al., 1995) being propounded...favour of a sudden removal of the lower lithosphere (Platt & Vissers, 1989). It is thus crucial to obtain a...1994; Monié et al., 1994; Crespo-Blanc, 1995; Platt et al., 1996), exhumation of the NF complex took...studies (Monié et al., 1991; De Jong et al., 1992; Platt et al., 2005). In order to tackle such discrepancies |  | | Journal (article/letter/editorial) | | (Fig. 2). This tectonic contact, known as the BMZ (Platt and Vissers, 1989) juxtaposes structural units of...internal zone of Betic Cordillera generalized from Platt and Behrmann (1986). Inset shows tectonic subdivision...Miocene extension throughout the Betic Cordillera (Platt et al., 1984; Galindo-Zaldı́var et al., 1989; Jabaloy...protomylonitic in the uppermost garnet- and chloritoid-bearing graphite schist and the overlying feldspathic...weakly to moderately preferred orientation of chloritoid and a strongly developed mineral aggregate lineation |  | | Journal (article/letter/editorial) | | and quartzitas; @ stourolite and kyanita @ chloritoid @) g a r n a t @ @ @ I - L alt-ita oligoclosa...millimetres across, are of common occurrence. Chloritoid occurs in the schists of the upper part of the...Malaguide nappes (Platt, 1982; Behrmann & Platt, 1982; Konert & Eeckhout, 1983; Platt, Eeckhout, Janzen...deformation of the nappe pile during Neogene times (Platt ef al., unpublished data; Roep, Eeckhout, Kleverlaan...preferentially oriented inclusions of quartz, albite (I), chloritoid 23 I (I) pseudomorphs, and tourmaline. Garnet |  | | Journal (article/letter/editorial) | | Ultraphyllonite origin for slate, mid-Atlantic Piedmont, USA David W. Valentino a, Jeffrey R. Chiarenzelli b,*...to pressure solution processes (e.g. Wright and Platt, 1982; Wintsch et al., 1991; Goldstein et al., 1995;...phyllonite contains porphyroclasts of fragmented chloritoid (2–3 mm) and euhedral pyrite (5–10 mm), but...that occur as pressure fringes on fragmented chloritoid and plagioclase porphyoclasts (Fig. 5). In places...diameter including fragments of plagioclase and chloritoid with asymmetric muscovite-quartz pressure fringes |  | | Journal (article/letter/editorial) | | lineations, extensional crenulation cleavages (Platt & Vissers, 1980), boudins and tension gashes filled...AMpHIBoLE(bluo9 BIOTITE LAZULlTE EPI DOTE CHLORITOID CHLORITE GLAUCOPHANE S.1 CLlNOZOlSlTE KYANlTE...(Boettcher & Wyllie, 1%7); (4) glaucophanc + chloritoid = paragonite +chlorite (Kicnast & Triboulct,...formation of glaucophane (Fig. a),phengite, epidote, chloritoid, Tihematite and locally garnet. has been observed...observed. In mica schists and amphibolites chloritoid-glaucopbane pairs are present as arrnoured relics |  | Negro, F., de Sigoyer, J., Goffé, B., Saddiqi, O., Villa, I.M. (2008) Tectonic evolution of the Betic–Rif arc: New constraints from 40Ar/39Ar dating on white micas in the Temsamane units (External Rif, northern Morocco) Lithos, 106 (1) 93-109 doi:10.1016/j.lithos.2008.06.011 | Journal (article/letter/editorial) | | subcontinental lithosphere (Platt & Vissers, 1989; Platt et al., 2003a, Platt et al., 2006), (2) lithospheric...reserved. doi:10.1016/j.lithos.2008.06.011 (e.g. Platt et al., 2005; Michard et al., 2006), but more recently...dated as Miocene in the lower Alboran Domain units (Platt et al., 2006). This event is overprinted during...whole Alboran Domain units (Balanyá et al., 1997; Platt et al., 2003a; Negro et al., 2006). This high thermal...systems in the whole area (e.g. Zeck et al., 1992; Platt et al., 2003a) and the betico–rifan accretionnary |  | | Journal (article/letter/editorial) | | eastern part of the Cameros massif. The area where chloritoid occurs is drawn according to Guiraud and Séguret...near the southern border of the Cameros massif (Platt 1990). The structure of the Cameros massif The northern...horizontal displacements of approximately 5 km (Platt 1990; Guimerà et al. 1995). The main folds that...mechanism (marine Jurassic). G Random-oriented chloritoid crystals in a cleaved lutite (Urbión group,...underwent chloritoid-grade metamorphism (Guiraud and Séguret 1984). The area where chloritoid is present |  | | Journal (article/letter/editorial) | | Broad Branch Road NW, Washington, DC 20015-1305, USA W.M. Lamb Department of Geology and Geophysics, Texas...A&M University, College Station, TX 77843-3115, USA Present address: F.M. Brouwer Institut für Geologie...continent along the southern margin of Europe (e.g. Platt 1986; Radelli and Desmons 1987) or from the European...Gneiss Minuti and the augengneisses (Fig. 4a). The chloritoid is usually intergrown with white mica, and coexists...likely kyanite) is observed in this fabric. The chloritoid bearing foliation (Sm–1) pre-dates the main phase |  | | Journal (article/letter/editorial) | | and geochronology of jadeite glaucophane and chloritoid glaucophane schists from north-west Turkey +...jadeite glaucophane chlorite + paragonite and chloritoid + glaucophane + paragonite. The metaclastics...Phase relations in the metaclastics show that the chloritoid + glaucophane assemblage, even in Fe2'-rich compositions...Mineral equilibria in the metaclastics involving chloritoid, glaucophane, jadeite, paragonite and chlorite...jadeitebearing blueschist facies rocks associated with chloritoid- glaucophane schists occur over an area of over |  | | Report (chapter) | | Foothills terrane, central Sierra Nevada, California, USA. Plane-polarized light; base of photo 2.6mm. Fig...Foothills terrane, central Sierra Nevada, California, USA. Plane-polarized light; base of photo 6.3 ram. Downloaded...Foothills terrane, central Sierra Nevada, California, USA. Plane-polarized light; base of photo 0.9 mm. Fig...cleavage in the Martinsburg Slate in New Jersey, USA: (1) sedimentary compaction, accounting for about...1996), 33-55% (Brandon et al. 1994), 50% (Wright & Platt 1982; Beutner & Charles 1985), 55% (Goldstein et |  | BOUSQUET*, R., OBERHANSLI, R., GOFFE, B., JOLIVET, L., VIDAL, O. (1998) High-pressure-low-temperature metamorphism and deformation in the Bundnerschiefer of the Engadine window: implications for the regional evolution of the eastern Central Alps. Journal of Metamorphic Geology, 16 (5) 657-674 doi:10.1111/j.1525-1314.1998.00161.x | Journal (article/letter/editorial) | | preservation of carpholite and the absence of retrograde chloritoid below the shear zone show that exhumation occurred...pelitic index minerals such as carpholite and chloritoid suggests a continuity of high-P/low-T metamorphism...shortening is controversial (e.g. see discussion in Platt, 1993; Avigad, 1992; Hacker & Peacock, 1995). The...similar to an extensional crenulation cleavage (Platt & Vissers, 1980). Although deformation is present...carpholite data from Vidal et al. (1992) and Mg-chloritoid data from Patrick (unpubl. data), given in Vidal |  | MIYAZAKI, K., ZULKARNAIN, I., SOPAHELUWAKAN, J., WAKITA, K. (2003) Pressure-temperature conditions and retrograde paths of eclogites, garnet-glaucophane rocks and schists from South Sulawesi, Indonesia. Journal of Metamorphic Geology, 14 (5) 549-563 doi:10.1046/j.1525-1314.1996.00381.x | Journal (article/letter/editorial) | | schist, garnet–glaucophane– quartz schist, garnet–chloritoid–glaucophane–quartz schist, serpentinite, garnet–glaucophane...garnet–glaucophane schists are interlayered with garnet–chloritoid–glaucophane– quartz schists or garnet–glaucophane–quartz...schist (dark coloured ) intercalated with garnet–chloritoid–glaucophane–quartz schist ( light coloured )...phengite, rutile, quartz and, in very rare cases, chloritoid. The matrix contains subordinate amounts of epidote...rutile. Omphacite is rare in these rocks. Garnet–chloritoid–glaucophane–quartz schists are intercalated among |  | | Journal (article/letter/editorial) | | biotite chloritoid chlorite plagioclase staurolite tourmaline quartz III- chloritoid -- ---...1937), but no paragenesis of glaucophane with chloritoid was observed. Green amphiboles vary from ferro-actinolite...1982) and lack of staurolite in the presence of chloritoid. Phengite compositions in the assemblage bt +...chlorite, albite, actinolite, clinozoisite/epidote, chloritoid and calcite/dolomite in basaltic rocks. White...grt bt. Furthermore, white mica, chlorite and chloritoid are stable in the matrix. Staurolite occurs rarely |  | ARENAS, R., PASCUAL, F. J. RUBIO, GARCIA, F. DIAZ, CATALAN, J. R. MARTINEZ (1995) High-pressure micro-inclusions and development of an inverted metamorphic gradient in the Santiago Schists (Ordenes Complex, NW Iberian Massif, Spain): evidence of subduction and syncollisional decompression. Journal of Metamorphic Geology, 13 (2) 141-164 doi:10.1111/j.1525-1314.1995.tb00211.x | Journal (article/letter/editorial) | | garnet-11, biotite (with an upper subzone with chloritoid) and staurolite developed from bottom to top...subduction of one of the colliding continental margins (Platt, 1986, 1987). The Ophiolitic Unit consists of metagabbros...D2, an extensional crenulation cleavage (ECC of Platt & Vissers, 1980) developed locally. An associated...up to 1 cm in diameter (garnet-II), biotite, chloritoid and staurolite (Figs 4a-h & 5). The mineral assemblage...garnet-11; (3) mica schists with garnet-I1 + chloritoid + staurolite. The first type of mica schist contains |  | | Journal (article/letter/editorial) | | and exhumation history of the Sevier hinterland, USA C. R. HARRIS,1,2 T. D. HOISCH1 AND M. L. WELLS3 1...Arizona University, PO Box 4099, Flagstaff, AZ 86011, USA (thomas.hoisch@nau.edu) 2 Isotope Geochemistry and...University of Nevada, Las Vegas, Las Vegas, NV 89154, USA ABSTRACT Metamorphic pressure–temperature (P–T)...Ruppel et al., 1988; Grasemann & Mancktelow, 1993; Platt & England, 1994; Ruppel & Hodges, 1994; Ketcham...influence deformation kinematics (Davis et al., 1983; Platt, 1986; Molnar & Lyon-Caen, 1988; England & Houseman |  | NEGRO, F., BEYSSAC, O., GOFFE, B., SADDIQI, O., BOUYBAOUENE, M. L. (2006) Thermal structure of the Alboran Domain in the Rif (northern Morocco) and the Western Betics (southern Spain) Constraints from Raman spectroscopy of carbonaceous material. Journal of Metamorphic Geology, 24 (4) 309-327 doi:10.1111/j.1525-1314.2006.00639.x | Journal (article/letter/editorial) | | removal of subcontinental lithosphere (Platt & Vissers, 1989; Platt et al., 2003a), (2) lithospheric delamination...g. Zeck et al., 1992; Platt & Whitehouse, 309 310 F. NEGRO ET AL. 1999; Platt et al., 2003a and references...migmatitic gneisses, sillimanite- to kyanite– chloritoid-bearing Palaeozoic metapelitic schists (Genal...400–480 C in the Permo-Triassic phyllites (Mg–chloritoid–kyanite assemblages) (Fig. 3). The Maláguide...Maláguide complex north of Malaga (Tubı́a et al., 1993; Platt et al., 2003b). 2006 Blackwell Publishing Ltd |  | Meffan-Main, S., Cliff, R. A., Barnicoat, A. C., Lombardo, B., Compagnoni, R. (2004) A Tertiary age for Alpine high-pressure metamorphism in the Gran Paradiso massif, Western Alps: a Rb-Sr microsampling study. Journal of Metamorphic Geology, 22 (4) 267-281 doi:10.1111/j.1525-1314.2004.00512.x | Journal (article/letter/editorial) | | micaschistsÕ which contain the HP assemblage quartz–chloritoid–talc–phengite ± glaucophane ± kyanite ± garnet;...assemblage chloritoid–chlorite–talc–phengite–quartz; and 58902 with the assemblage glaucophane–chloritoid–phengite–talc–...Punta Fenillia (Fig. 2), contain the assemblage chloritoid, phengite, chlorite, talc and quartz. Apatite...up to 300 lm across and as inclusions within chloritoid grains. Some of the rutile occurs as needles...during sagenitic alteration of biotite (Fig. 3b). Chloritoid grains are up to 10 mm in diameter with lower |  | Platt, J. P., Behrmann, J. H., Martínez, J. -M. M., Vissers, R. L. M. (1984) A zone of mylonite and related ductile deformation beneath the alpujarride nappe complex, betic cordilleras, S. Spain. Geologische Rundschau, 73 (2) 773-785 doi:10.1007/bf01824981 | Journal (article/letter/editorial) | | Nappe Complex, Betic Cordilleras, S. Spain. By J.P. PLATT and J.H. BEHRMANN, Oxford, J-M. M. R. L. M. VISSERS...derivan de *) Addresses of the authors: J. P. PLATT and J. H. BEHRMANN,Department of Geology and Mineralogy...Rundschau 73, 2, 773 - 785, Stuttgart 1984 773 J. P. PLATT, J, H. BEHRMANN, J-M. M. MARTINEZ and R. L. M. VISSERS...14111 ~ '" E E S* @ E O =1 > b4 J. P. PLATT,J. H. BEHRMANN,J-M. M. MARTJNEZand R. L. M. VISSERS... the Aguil6n nappe, is an isoclinal foldnappe (PLATT, 1982; PLATTet al., 1983). This is demonstrated |  | | Journal (article/letter/editorial) | | irradiated by 1018 neutrons cm -z at the Ford Reactor, Michigan, monitored by hornblende standard mmhbl (Age =...further constrained by the equilibria involving chloritoid, glaucophane, paragonite, chlorite and quartz...maximum temperatures of about 450 ~C, while the chloritoid-glaucophane equilibria indicate minimum temperatures...underthrusting by cold material during uplift (Platt 1993). However in the Tavsanli blueschists, lithologies...in the Mogollon-Datil volcanic field, New Mexico, USA. Contrib Mineral Petrol 115:165 183 Davis JM, Elston |  | | Journal (article/letter/editorial) | | Accumulations in Develop12 ment " Algie in water from mine dumps . ·34, 3 6 80 Allwood, E. F., elected Ammonite...Consols Mine Cherwell, meanders Chilworth, Excursion Chip and Slide Chipshop, Excursion Chloritoid Clandon...Excursion, 34; water from dumps 36 Devon United Mine, Excursion 36 Dcvonian Rocks, Devon, 24, 83 33,...two sarcples of water from the Devon Great Consols Mine Dwerryhollse, Major A. R., elected, PAGE 78 77...variation in 78 78 78 18, 132 225 32 3 7 Palmer, L. S., elected, 79; Pleistocene Deposits of the |  | | Journal (article/letter/editorial) | | (DeMets, Gordon, & Argus, 2010; Koulali et al., 2011; Platt, Behr, Johanesen, & Williams, 2013; Pla-Pueyo, Viseras...are supported by Lu-Hf garnet dating (18-14 Ma: Platt, Anczkiewicz, Soto, Kelley, & Thirlwall, 2006),... García-Dueñas, Azañón, & Sánchez-Gómez, 1997; Platt et al., 2006; García-Dueñas, Balanyá, & Martínez-Martínez...Spain and the northern coast of Morocco (Behr & Platt, 2012; García-Dueñas et al., 1992). The Alborán...Galindo-Zaldívar, & González-Lodeiro, 1993; Lonergan & Platt, 1995). The AC and NFC were metamorphosed during |
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