 | | Journal (article/letter/editorial) | | WESTERN METAMORPttIC COMPLEX A kyanite-garnet-gneiss was collected from the median moraine of the NordenskiSld...NordenskiSld Glacier. Under the microscope, this gneiss is a coarse-grained rock with porphyroblastic crystals...region rich in inclusions, especially of quartz, rutile, biotite, tourmaline, and magnetite. The garnets...There can be little doubt that the genesis of this gneiss is connected with the regional metamorphism of...argillaceous sediment; for mineralogically the gneiss is quartzose, and is rich in highly aluminous minerals |  | Greer, Jennika, Caro, Guillaume, Cates, Nicole L., Tropper, Peter, Bleeker, Wouter, Kelly, Nigel M., Mojzsis, Stephen J. (2020) Widespread poly-metamorphosed Archean granitoid gneisses and supracrustal enclaves of the southern Inukjuak Domain, Québec (Canada). Lithos, 364. 105520pp. doi:10.1016/j.lithos.2020.105520 | Journal (article/letter/editorial) | | intra-NSB fold belt rocks of the Central Tonalitic Gneiss (CTG) preserve mainly ca. 3650 Ma zircons. Beyond...younger overgrowths dated at ca. 2700 Ma. A tonalitic gneiss that transects another highly deformed supracrustal...discovery of more pre-3700 Ma rocks beyond the NSB outcrops calls attention to the existence of hitherto unidentified...of sizes captured in ancient granite-granitoid gneiss terranes that are in turn separated unconformably...centimeter-scale to tens of kilometers in outcrop area, the various Eoarchean (3850–3600 Ma) supracrustals |  | | Report (issue) | | Deposit Ellendale School Area Fox's Orchard Deposit Wilkesboro-Taylorsville Area 3 3 4 6 6 6 6 8 10 10...Carolina 9 3. Valdese-Dudley Shoals Sillimanite Area, Burke, Caldwell, Alexander Counties, North Carolina...Hayesville Area: Brasstown Church-Cherry Mountain Sillimanite Deposits 21 8. Hayesville Area: Hyatt Mill...Deposits 22 9. Hayesville Area: Downing Creek Sillimanite Deposits 10. Etna-Cowee Area: Saldeer Sillimanite...Etna-Cowee Area: Oak Grove-Matlock Creek Sillimanite Deposits L . 29 12. Etna-Cowee Area: Leatherman |  | Braga, R., Bargossi, G.M., Mair, V., Marocchi, M., Sapienza, G. T., Bondi, M. (2007) Garnet peridotites, pyroxenites and migmatites from the Ulten Zone: a tribute to Lauro Morten. Mitteilungen der Österreichischen Mineralogischen Gesellschaft, 153. | Journal (article/letter/editorial) | | 1. Introduction The Ulten Zone (UZ) is an Alpine area where crust-mantle interaction can be observed because...presents the field trip focused on the Seefeld Alm area. This field trip can be considered the updated re-proposal...garnet peridotites and country rocks from Seefeld Alm area (Ultental)” (MARTIN et al., 1993) performed in the...and to his remarkable research activity in this area. 2. Geological Overview The UZ (ANDREATTA, 1935...Zone (modified after DEL MORO et al., 1999). The red area refers to the portion of the Ulten Zone visited |  | Kaneko, Y., Katayama, I., Yamamoto, H., Misawa, K., Ishikawa, M., Rehman, H. U., Kausar, A. B., Shiraishi, K. (2003) Timing of Himalayan ultrahigh-pressure metamorphism: sinking rate and subduction angle of the Indian continental crust beneath Asia. Journal of Metamorphic Geology, 21 (6) 589-599 doi:10.1046/j.1525-1314.2003.00466.x | Journal (article/letter/editorial) | | contain quartz, apatite, plagioclase, muscovite and rutile. In contrast, the rim domains contain coesite and...(garnet-omphacite), Rb–Sr (phengite), and U–Pb (allanite, rutile and zircon) methods revealed that they were formed...(1983) are used. GEOLOGICAL SETTING The Kaghan Valley area lies south-west of Nanga Parbat (Fig. 1a) in the...unit, and is composed mainly of felsic or granitic gneiss and marble with locally abundant eclogite boudins...5 m thick are interlayered with pelitic gneiss, felsic gneiss and marble. The eclogitic layers are always |  | | Book (edition) | | -S. 30° E. direction from each other. No rock outcrops were seen near the n,methyst prospect, but the...soil containing angulnr fragments of fine granite gneiss, quartz, feldspar, and pegmatite composed of smoh...the be(kling planes of some of the fine granite gneiss. The amethysts are scarce on the surface now, but...pnle purple and incloses a few scattered reddish rutile needles. One specimen is partly incrusted with...a north-south direction. T.lle biotite granite gneiss country rock has mostly. decomposed to a friable |  | | Book | | Republic of Germany, Treland, The Netherlands, Switzerland, United Kingdom MER 1. de la Gj DE BARENTS...Republic of Germany, Ireland, the Netherlands, Switzerland, United Kingdom @® Denmark, Finland, Iceland...Republic of Germany, Ireland, The Netherlands, Switzerland, United Kingdom Published in cooperation with... ee oe TERTIARY BEDS OF THE INN VALLEY IN THE AREA OF KUFSTEIN-WORGL ....... THE MOLASSE ZONE BETWEEN...BETWEEN THE RIVERS SALZACH AND INN AND THE AREA PADI OAde2LED eesee oe Re toss one ee Cer ek Pe an tee Ce |  | | Book (volume) | | Calcite crystals, Marcasite and Pyrite cubes. The area around the confluence of the Loup River with the...and gem petrified wood. BUFFALO COUNTY KEARNEY, area gravel bars and pits along the Platte R., especially...wood). CHEYENNE, DEUEL, GARDEN & KEITH COUNTIES AREA, between North and South Platte rivers and in all...mi. to a lone butte, one of the best collecting area in the Midwest statesFairburn agates, jasper, carnelian...N 20 mi., all area of the Little Bad landsvertebrate fossil remains; Pine Ridge, areaQuartz concretions |  | Gómez-Pugnaire, M.T., Rubatto, D., Fernández-Soler, J.M., Jabaloy, A., López-Sánchez-Vizcaíno, V., González-Lodeiro, F., Galindo-Zaldívar, J., Padrón-Navarta, J.A. (2012) Late Variscan magmatism in the Nevado-Filábride Complex: U-Pb geochronologic evidence for the pre-Mesozoic nature of the deepest Betic complex (SE Spain) Lithos, 146. 93-111 doi:10.1016/j.lithos.2012.03.027 | Journal (article/letter/editorial) | | gneisses. Compositional similarity in different outcrops points to common genetic relationships. Although...variable and well studied metamorphic terranes in this area, where the different effects of the Variscan and...has implications for the tectonic evolution of the area. Additionally, a detailed geochemical study of the...studied samples from 12 different representative gneiss outcrops (Table 1) throughout the NFC (green stars in...in Table 1. More details 95 about the rocks outcrops are provided in the supplementary material. Petrographic |  | | Journal (article/letter/editorial) | | suite of rocks previously mapped as the Colbeck Gneiss is shown to be composite in age and origin, consisting...orthogneiss that are intruded by granitic gneiss and charnockitic gneiss. An (7) Archaean granulite facies Sl...pseudotachylite zones is the last deformation event in the area. Introduction High-grade gneisses forming the... sequence of the ductile thrusting of Archaean gneiss westward toward the stable Archaean Napier Complex...Stillwell Gneiss (Trail, 1970; Clarke, 1988 ). Whereas felsic orthogneisses within the Stillwell Gneiss have |  | | Report (volume) | | ............................. 19 21 Hiusdale gneiss..................................................Lee gneiss ...................................................... 27 31 33, Tyringhaui gneiss...................................... 34 Washington gneiss..............'............................................................ 43 43 Lee-Tyringham area ..................................................distinctions ............................. Hinsdale gneiss............................................. 47 |  | | Book (volume) | | also quarried a rough, porous flintstone from outcrops, especially around McArthur, Vinton Co., for making...CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD, area creek...COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships of Washington...(on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE, area Co. exposures of blue clay...(crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay in rd. cuts, pits |  | | Book (volume) | | also quarried a rough, porous flintstone from outcrops, especially around McArthur, Vinton Co., for making...CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD, area creek...COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships of Washington...(on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE, area Co. exposures of blue clay...(crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay in rd. cuts, pits |  | Coats, J. S., Shaw, M. H., Smith, R. T., Rollin, K. E., Smith, C. G., Fortey, N. J. (1996) Mineral exploration for gold and base metals in the Lewisian and associated rocks of the Glenelg area north-west Scotland. Mineral Reconnaissance Programme Report 140. British Geological Survey | Report (issue) | | the Lewisian and associated rocks of the Glenelg area, north-west Scotland J S Coats, M H Shaw, R T Smith...the Lewisian and associated rocks of the Glenelg area, north-west Scotland J S Coats, M H Shaw, R T Smith...the Lewisian and associated rocks of the Glenelg area, north-westScotland. Mineral Reconnaissance Programme...concentrates DETAILED INVESTIGATIONS OF THE CARR BRAE AREA 2 4 7 8 8 27 41 Overburden geochemistry ...Graphite-bearing gneiss 66 TABLES 1 Summary statistics for stream sediment samples from the Gleoelg area 10 |  | | Report (issue) | | western North Carolina. The deposits occur in an area nearly 75 miles wide and 200 miles long, extending...through the State. (See fig. 51.) For convenience this area maybe divided into three belts the Cowee-Black -Mountain...mapped by Keith a the Carolina gneiss and the Roan gneiss. The Carolina .gneiss includes most of the gneisses...hornblendic in composition. The Roan gneiss is composed of hornblende .gneiss and hornblende schist with smaller...smaller beds of mica .gneiss and mica schist included. In the mica region by far the most important formation |  | | Report (issue) | | ................................... 10 BIOTITE GNEISS ................................................................... 11 Sillimanite-Free Biotite Gneiss ................................................................. 11 Biotite-quartz-plagioclase gneiss......................................................... 11 Garnet-biotite gneiss or garnet-quartz-feldspar-biotite gneiss....................................... 12 Cordierite-garnet-gedrite-biotite gneiss............................................... |  | | Report (issue) | | years. Although geological work has been done in the area at different times, this bulletin represents the...indicates that there are ample reserves of talc in the area for long term operations, and it is believed that...herein will be of value to those interested in the area. Respectfully submitted, R. BRUCE ETHERIDGE, Director...Mica Schist (pms) Quartz-ottrelite Gneiss (qog) Quartz-mica Gneiss (qmg) Mica Schist (ms) . Murphy Marble...Schist (os)„. Nottely Quartzite (nq) Ottrelite Gneiss (og) Staurolite-Mica Schist (stm) Quartz-Mica Schist |  | | Journal (issue) | | resistent minerals as gold, c.assiterite, zircon, rutile, ilmenite, magnetite, etc." The writer likes to...Wodgina tantalum district in Kimberly in the northern area of Western Australia, and King Island in Bass Strait...kyanite, zircon, chondrodite, pyrite, f uchsite, rutile, marca• site, vesuvianite, wollastonite, epidote...- -New South Wales and the whole south• eastern area of Australia is the best developed as to commercial...used and is not potable. The description of this area reads like a huge Mojave Desert. The " mushers" |  | Yang, Yan, Liang, Chenyue, Zheng, Changqing, Zhang, Jinrui, Xu, Xuechun, Guo, Tengda, Zhou, Xiao, Hu, Pengyue, Han, Xiaomeng, Hao, Yujie (2020) Metamorphic evolution and tectonic significance of ultrahigh‐temperature mafic granulites in the southern part of the Shiguai area, Daqingshan, China. Geological Journal, 55 (5). 3896-3916 doi:10.1002/gj.3625 | Journal (article/letter/editorial) | | mafic granulites in the southern part of the Shiguai area, Daqingshan, China Yan Yang1 | Chenyue Liang1...part of the Shiguai area in Daqingshan, China, crop out within the Shanheyuan Gneiss of the Khondalite...China Geological Survey, Shenyang, Liaoning, China gneiss as irregular lenses and deformed dike swarms. Four...understanding of the Xuwujia and Dajing near Tuguiwula area (Jiao & Guo, 2011; Jiao, Paleoproterozoic geological...have been few Guo, Mao, & Zhao, 2011), Xumayao area (Zhang et al., 2012), and studies on the metamorphic |  | | Book (edition) | | Penetration twin of fluorite 22. 23. Triclinic 26. Rutile "sixling" 27. Cassiterite 28. North 4 2. 7...charred deeply by working the blowpipe flame over the area in which the test mineral is to be placed. This...several dozen standard names such as granite, basalt, gneiss (pronounced "nice"], and schist are all the amateur...accepted and understood, and usually recognizable on outcrops. It should be remembered that one cannot expect...called anticlines and synclines, until we reach the area where the pressure has been great enough to change |  | Guo, Shun, Yang, Yueheng, Chen, Yi, Su, Bin, Gao, Yijie, Zhang, Lingmin, Liu, Jingbo, Mao, Qian (2016) Grain-scale Sr isotope heterogeneity in amphibolite (retrograded UHP eclogite, Dabie terrane): Implications for the origin and flow behavior of retrograde fluids during slab exhumation. Lithos, 266. 383-405 doi:10.1016/j.lithos.2016.10.014 | Journal (article/letter/editorial) | | eclogite and amphibolites from the Hualiangting area (Dabie terrane, China). The UHP epidote porphyroblasts...behaved in a pervasive manner, whereas the influx of gneiss-derived fluid was transient, episodic, and highly...microdiamond, and exsolutions of clinopyroxene, rutile and apatite in garnet MA within the eclogites...Liu et al., 2008), respectively. MA The study area is located east of the Hualiangting Reservoir (NW...conditions of the eclogites in the Hualiangting area, ranging from 20 to 35 kbar and from 640 to 840 |  | | Report (issue) | | Sonfon-Kalakuru area 59 The Kamakwie area 60 Other areas 61 Molybdenite 61 The Dalakuru area 62 The Bongone...Bongone area 62 The Wankatana area 63 TheKelsako area 63 Other occurrences 63 Base metals (excluding nickel)...the BTAP team 66 Conclusions 66 Titanium ores: rutile and ilmenorutile 66 The Mabole River and Little...Little Scarcies River confluence 66 TheKambia area 66 The northern Sula Mountains 67 Nickel 67 Cassiterite...Location of British Technical Assistance project area 1 2 Generalised geology of northern Sierra Leone |  | | Report (volume) | | ............................. Sterling granite gneiss.............................................. Lantern................................ Sterling granite gneiss.............................................. Intrusive............................. Porphyritic granite gneiss areas............................ Alaskite areas.................................. Normal granite gneiss areas................................. Minor sheets...Sterling granite gneiss................ Contact metamorphism due to the Sterling granite gneiss. ......... |  | | Report (volume) | | .............................. 51 Ellicott City area............................................. 51........................:............. 53 Guilford area..................................................................................... 54 Woodstock area.............................................. 56...57 Port Deposit area ............................................ 59 Frenchtown area..................... 62 Dorseys Run area ........................................ 62 Sykesville area.................. |  | | Report (issue) | | Buckingham area Val-des-Monts area Glen-Almond area Notre-Dame-de-Ia-Salette area Notre-Dame-du-Laus area Lac...Lac du Cerf zircon occurrence Labelle area Grenville area Plates II 21 26 29 32 40 43 I. II. III. IV...Val-des-Monts area Back (Wallingford) mine Phlogopite crystal, Notre-Dame-de-Ia-Salette area 'Leopard rock'...serpentine, marble. and granite. Probably the best known area is the du Lievre River valley where the intense...geological regions are represented in the collecting area - the Canadian Shield and the St. Lawrence Lowlands |
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Gneiss outcrops, Ofenhorn, Albrunhorn - Turbhorn area, Binn, Goms, Valais, Switzerland