 | | Report (issue) | | Mica Deposits of the Blue Ridge in North Carolina GEOLOGICAL SURVEY PROFESSIONAL PAPER 577 Work done...done in part in cooperation with the North Carolina Department of Conservation and Development and in part...Administration Mica Deposits of the Blue Ridge in North Carolina By FRANK G. LESURE GEOLOGICAL SURVEY PROFESSIONAL... Work done in part in cooperation with the North Carolina Department of Conservation and Development... Geologic map of part of the Blue Ridge of North Carolina and Tennessee. 2-6. Maps showing location of |  | Basta, Fawzy F., Maurice, Ayman E., Bakhit, Bottros R., Azer, Mokhles K., El-Sobky, Atef F. (2017) Intrusive rocks of the Wadi Hamad Area, North Eastern Desert, Egypt: Change of magma composition with maturity of Neoproterozoic continental island arc and the role of collisional plutonism in the differentiation of arc crust. Lithos, 288. 248-263 doi:10.1016/j.lithos.2017.07.011 | Journal (article/letter/editorial) | | Intrusive Rocks of the Wadi Hamad Area, North Eastern Desert, Egypt: Change of Magma Composition... Atef, Intrusive Rocks of the Wadi Hamad Area, North Eastern Desert, Egypt: Change of Magma Composition...MANUSCRIPT Intrusive Rocks of the Wadi Hamad Area, North Eastern Desert, Egypt: Change of Magma Composition...highK calc-alkaline affinity, Ta-Nb troughs on the spider diagrams and pyroxene and biotite compositions...highly fractionated calc-alkaline nature and their spider diagrams almost devoid of Ta-Nb troughs. The earlier |  | Yue, Baojing, Zhang, He, Liao, Jing, Ding, Xue, Yin, Xuebo (2017) Neoproterozoic granitic gneiss offshore the Shandong Peninsula of Eastern China: the eastward extension of the Sulu Orogenic Belt. International Geology Review, 59 (8) 1015-1027 doi:10.1080/00206814.2016.1250127 | Journal (article/letter/editorial) | | assemblage in the study region is quartz + K-feldspar + perthite + biotite + muscovite. The samples are silica-...and collision of the Yangtze Plate beneath the North China Plate during the Triassic (Xu et al. 2009)...Uplift is an outcrop of the suture between the North China and Yangtze plates (Han et al. 2007). However...the south to the east and ~400 km long from the north to the east, with an area of about 55,000 km2....(36°15′56′′N, 121°23′10″E). It is ~1.5 km long from the north to the east and ~150– 450 m wide from the south |  | | Book | | CHAPTER 8 Tennessee 8 7 6 CHAPTER 10 South Carolina ......... _ .......... _ _ .... ____________________............._........... 7 3 6 CHAPTER 9 North Carolina 4 2 3 3 9 6 3 CHAPTER 1 GEM H U N T...g e s w h i c h c r e s t a t M t . N o r t h Carolina, a n d C l i n g m a n ' s Dome, Tennessee. Because...was m e r e l y p a r t o f t h e waste o f t h e mine. W h a t t h e y needed was h i g h grade ore o...n d m 1799 i n Cabarrus C o u n t y, N o r t h Carolina, b y a s m a l l b o y w a l k i n g along a m |  | Mughal, Muhammad Saleem, Zhang, Chengjun, Hussain, Amjad, Rehman, Hafiz Ur, Du, Dingding, Baig, Mirza Shahid, Basharat, Muhammad, Zhang, Jingya, Zheng, Qi, Hussain, Syed Asim (2020) Petrogenesis and Geochronology of Tianshui Granites from Western Qinling Orogen, Central China: Implications for Caledonian and Indosinian Orogenies on the Asian Plate. Minerals, 10 (6) 515 doi:10.3390/min10060515 | Journal (article/letter/editorial) | | to the subduction of the Proto-Tethys under the North China Block, and can be linked to the generally...orogeny (440–400 Ma) in the western segment of the North Qinling belt, whereas Yuanlongzhen and Caochuanpu...Introduction The Qinling Orogenic Belt (QOB) separates the North China Block (NCB) from the South China Block (SCB)...NCB = North China Block, SCB = South China study. Abbreviations used on the map are: NCB = North China...Shangdan Suture Zone, MSZ = Mianlüe Suture Zone, NQB = North Qinling Belt, SQB = South Qinling Belt. According |  | | Book (volume) | | instance, a single Spodumene crystal from the Etta Mine near Keystone on the east side of the Mount Rushmore...beds, excavations, etc.Selenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm...gray Barite rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides...gravels, etc.petrified wood, wood opal. CORSON COUNTY LITTLE EAGLE: area ridges, slopes, stream beds...Hounds in the United States CUSTER COUNTY AREA: The November Mine, 1.2 mi. SE of the Needles Eye Tunnel |  | | Journal (article/letter/editorial) | | the investigated granitoids are metaluminous. The spider diagrams, with enrichment in LILE and strong Nb...and strong Nb depletions on the MORB-normalized spider diagrams. However, the tonalites have REE patterns...compared to the M-type calcalkaline intrusives of the North Eastern Desert, implying northwardly dipping subduction... The Dabbah gabbro pluton is intruded from the north by the Abu Ghusun granitoids with the formation...varies in composition from granodiorite in the north to granite in the south. The contact between the |  | Zhang, Zezhong, Qin, Jiangfeng, Lai, Shaocong, Long, Xiaoping, Ju, Yinjuan, wang, Xingying, Zhu, Yu (2020) Origin of Late Permian amphibole syenite from the Panxi area, SW China: high degree fractional crystallization of basaltic magma in the inner zone of the Emeishan mantle plume. International Geology Review, 62 (2) 210-224 doi:10.1080/00206814.2019.1596844 | Journal (article/letter/editorial) | | an area of at least 0.3 × 106 km2 of China and north Vietnam (Song Da zone) (Figure 1(a); Xu et al. ...the inner zone of ELIP, which elongated in the north-south direction, extending over a distance of 700...(Figure 3(a)). The mineral assemblage predominantly perthite (80 to 85 vol. %), amphibole (12 vol. %), clinopyroxene...Fe-Ti oxides, zircon, apatite and titanite. The perthite (0.1 to 1 cm long) display euhedral to subhedral...textures (Figure 3(b)). Amphibole is surrounded by perthite, the 3 Fe-Ti oxides occasionally observed around |  | | Journal (article/letter/editorial) | | syenite, felsic syenite, nepheline syenite and perthite syenite. Fe-rich orthopyroxene rims on olivine...bounded by Singhbhum and Bastar Cratons to the north and west respectively, could be described as a compressional...syenite, felsic syenite, nepheline syenite and perthite syenite. Felsic syenite and nepheline syenite...magmatic foliation in the host felsic syenite, and perthite syenite occurs as thin band, mostly along the...Nepheline syenite: Perth+Neph+Bio+Amp+Opq+Plg±K-fls Perthite syenite: Perth+K-fls+Amp+Opq±Bio±Plg Mafic to |  | | Journal (article/letter/editorial) | | the coarse-grained detritus was derived from the north of the Siegas area, the interformational constituents...plutonic rocks, 4 = potassium feldspar (including perthite), 5 = mafic volcanic rocks, 6 = total quartz,...feldspar. These feldspars include orthoclase, perthite, sodic plagioclase, and myrmekite, and suggest...of the arkosic facies are mainly orthoclase and perthite similar to the feldspars of the felsic plutonic...rest of the Siegas Formation) was derived from the north (Hamilton-Smith 1971, p. 20). During early Llandovery |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...nodules⎯Pyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay...HIGHLAND COUNTY SINKING SPRING, area ore deposit (most important in Ohio) ⎯Hematite. HOCKING COUNTY AREA |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...nodules⎯Pyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay...HIGHLAND COUNTY SINKING SPRING, area ore deposit (most important in Ohio) ⎯Hematite. HOCKING COUNTY AREA |  | Zhou, Wenxiao, Zhao, Xiaocheng, Fu, Dong, Sun, Junjun, Li, Ziqian, Huang, Bo, Mengchun, Ge (2018) Geochronology and geochemistry of the Carboniferous Ulann Tolgoi granite complex from northern Inner Mongolia, China: Petrogenesis and tectonic implications for the Uliastai continental margin. Geological Journal, 53 (6) 2690-2709 doi:10.1002/gj.3104 | Journal (article/letter/editorial) | | Western Michigan University, Kalamazoo, Michigan, USA Correspondence Wenxiao Zhou, Geological Survey Institute...between the Siberian and Russian cratons to the north Mossakovsky, Ruzhentsev, Samygin, & Kheraskova...Kheraskova, 1994; Safonova, and the Tarim and North China cratons to the south (Figure 1a,b). This 2017; Sengör...microcontinent and the North China Block (Xiao et al., 2003). From south to north, the eastern segment...2004; Jahn, Wu, & Chen, have suggested that the north‐dipping subduction of the Palaeo‐Asian 2000; Long |  | | Journal (article/letter/editorial) | | oz). The first ingot was produced in 2012, and the mine is currently in production to a depth of 696 m....filled by Lac Bachelor and Auger sediments to the north and south, respectively (Fig. 1). These formations...Gabbro dd We Lac Bachelor Mine (Au) Ores zones Au prospects 80 Coniagas Mine (Zn, Pb, Ag) Diabase Stratification...Marcoux, 2015). B) Geologic map of the Lac Bachelor mine area (modified from Doucet et al., 1994, 1998)....sedimentary rock formations are present to the north and south of the intrusion. The ore zones are located |  | | Book (volume) | | vertebrate remains. The breaks of the White River north of Crawford in Dawes Co. and the rather extensive...chalcedony, jasper and gem petrified wood. BUFFALO COUNTY KEARNEY, area gravel bars and pits along the Platte...townagate, chalcedony, jasper, petrified wood. CASS COUNTY WEEPING WATER, SE, on rd. to Nehawka, in the Snyderville...chalcedony, jasper, fossils. CHERRY COUNTY VALENTINE, in the Sandhills county along the Niobrara R. and Minnechaduza...CHEYENNE, DEUEL, GARDEN & KEITH COUNTIES AREA, between North and South Platte rivers and in all tributary branches |  | Bickford, M. E., Basu, Abhijit, Kamenov, George D., Mueller, P. A., Patranabis-Deb, S., Mukherjee, A. (2014) Petrogenesis of 1000 Ma Felsic Tuffs, Chhattisgarh and Indravati Basins, Bastar Craton, India: Geochemical and Hf Isotope Constraints. The Journal of Geology, 122 (1) 43-54 doi:10.1086/674802 | Journal (article/letter/editorial) | | 13244-1070, USA; 2. Department of Geological Sciences, Indiana University, Bloomington, Indiana 47405, USA; 3...University of Florida, Gainesville, Florida 32611, USA; 4. Geological Studies Unit, Indian Statistical Institute...Eastern Ghats Mobile Belt, and the suturing of the North and South Indian cratonic blocks along the Central...collisional orogenies to the southeast and to the north. Online enhancements: supplementary tables. Introduction...Anorthosite-Mangerite-CharnockiteGranite suite in North America and elsewhere (e.g., Mukhopadhyay and Basak |  | Prent, Alexander M., Beinlich, Andreas, Raimondo, Tom, Kirkland, Christopher L., Evans, Noreen J., Putnis, Andrew (2020) Apatite and monazite: An effective duo to unravel superimposed fluid-flow and deformation events in reactivated shear zones. Lithos, 376. 105752pp. doi:10.1016/j.lithos.2020.105752 | Journal (article/letter/editorial) | | McLaren et al., 2009; Walter et al., 1995). The north-western part of the Arunta Region includes the Reynolds...which border the Amadeus Basin to the south and north, respectively (Fig. 1; Lindsay and Korsch, 1991;... a dip-slip stretching lineation and a steeply north- and south-dipping foliation (Raimondo et al., 2011)...orthogneiss consists of quartz (~35 vol %), megacrystic perthite (~35%), plagioclase (~20%), biotite (< 10%) and...quartz grains (~1 mm) bordering large K-feldspar (perthite) grains are generally elongated parallel to the |  | | Journal (article/letter/editorial) | | Department , Marshall University , Huntington, WV, USA Published online: 13 May 2010. To cite this article:...Department, Marshall University, Huntington, WV, USA Downloaded by [Monash University Library] at 04:45... suggesting a significant mantle contribution. Spider diagrams show troughs for Ti, P, and Nb, indicating... 534 Industrial Park Road, Bluefield, VA 24605, USA. ISSN 0020-6814 print/ISSN 1938-2839 online © 2010...in understanding the tectonic evolution of the North American Cordillera, very little work has been done |  | | Journal (article/letter/editorial) | | Santanápolis syenites: (1) heterogranular, mainly in the north; and (2) porphyritic in the south. Both facies show...feldspar crystallization: a hypersolvus stage, with perthite formation and resorption of early plagioclase...toward the leucocratic units. The presence of perthite as the only feldspar in the heterogranular facies...in the porphyritic facies, early crystallized perthite, followed by late crystallization of two feldspars...contents; and negative Nb and Ti anomalies in the spider diagrams (Fig. 7) are typical features of these |  | | Report (chapter) | | are linked to major shear zones trending roughly north–south and, close to the southern margin, WNW–ESE...and ENE–WSW dominate southwards. Slip along the north–south zones in an extensional setting initiated...Svecokarelian orogen in Sweden (Fig. 4.3). To the north, the Bothnia–Skellefteå lithotectonic unit borders...characterized by deformation zones striking roughly north–south that continue northwards into the Norrbotten...an intense magnetic banding defining an overall north–south to NNE–SSW structural grain related to intercalations |  | | Journal (article/letter/editorial) | | of Maine at Presque Isle, Presque Isle, ME 04769, USA MA c SC R a IP T Xiaofeng Lia,b,*, Yong Yuc...granodiorite MA that consists of quartz (22%–33%), perthite (5%–20%), plagioclase (48%–52%), and amphibole...monzogranite is composed of anhedral quartz (25%–30%), perthite (24%–28%), 5.1. Sampling CE P 5. Sampling and...and medium-grained biotite-perthite monzogranite; it is composed of perthite (40%–45%), plagioclase (17%–18%)...some albite 7 ACCEPTED MANUSCRIPT twins. The perthite is subhedral to anhedral and prismatic, ranging |  | | Journal (article/letter/editorial) | | reported data from the Porphyry district, in the north of the area (Allen, 1986; Cassidy, 1992), are compared...(1997), which deal specifically with granites to the north and west of the region covered here. 2. Regional...crop out in linear belts characterized by a strong north-northwest trend defined by major faults and shear...exposed mainly in the elongate cores of regional north-northwest trending upright anticlines formed during...pre-folding granites outcrop predominantly in the north of the Kalgoorlie and Gindalbie terranes, but are |  | | Journal (article/letter/editorial) | | felsic melts in the St. Francois Terrane of Missouri, USA G.R. Lowell a,*, G.J. Young b a Department of Geosciences...Missouri State University, Cape Girardeau, MO 63701, USA b Missouri Department of Natural Resources, Division...Division of Geology and Land Survey, Rolla, MO 65401, USA Received 13 December 1996; accepted 30 June 1998...account of magma mingling in the large USA segment of the North American Mesoproterozoic belt. 0301-9268/99/$...solitary enclaves can be traced as far as the Silver Mine area, 3 km southeast. Field, textural and chemical |  | | Report (issue) | | arawak and North Borneo _________________ _ Sarawak _____________________________ _ North BorneO----...________ _ North Island_____ ------------- ________ _ Antarctica ________________________________ _ North Am...124 126 127 130 Monazite localities-Continued North America-Continued United States of America-Continued...Perce Counties __________ _ Idaho CountY-----------------Valley CountY-----------------Adams, Payette,...and Gem Counties ________________________ _ Boise County ___ --------------Ada, Owyhee, Elmore, and Custer |  | Liu, Lei, Chu, Geng, Li, Yanguang, Yang, Xiaoyong, Santosh, M., Hu, Qing (2018) Mesozoic High- and Low-SiO2 Adakites and A-Type Granites in the Lower Yangtze River Belt, Eastern China: Implications for Petrogenesis and Metallogeny. Minerals, 8 (8) 328 doi:10.3390/min8080328 | Journal (article/letter/editorial) | | texture, and an assemblage comprising perthite (25%–35%), quartz perthite (25%–35%), quartz (30%–35%), orthoclase...(a)perthite, and cross polarized light (b). The Zongpu quartz diorite composed of light perthite, (d)...Anqing orefield. The primitive mantle normalized spider diagrams display that the granitoids from the Yueshan...respectively. Zongpu and Dalongshan intrusions spider have similar features of large elements (LILE)...elements (LILE) The primitive mantle normalized spider diagrams displayofthat the granitoids from the |
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