 | | Report (issue) | | REFERENCES 52 37 38 41 PLATES Page PLATE 1. Occurrence of Sillimanite in Cliffside-Elkin Belt of North...Tennessee Valley Authority noted extensive sillimanite schist occurrences in the vicinity of Valdese, Burke County...TVA. PROPERTIES OF SILLIMANITE Sillimanite, like kyanite and andalusite, has the theoretical chemical composition...hair-like crystals, in schist or as coarse bundles of crystals (nodules) disseminated in schist. When heated above...apparently has been formed from the alteration of kyanite to sillimanite, however, the identity of these |  | | Report (issue) | | ---~----~-------- --~-~~~~-~~---~~--~ ~~~~~~~---~~~-~-~~ Gneiss-schist-amphibolite unit Lower quartzite unit ~~~~~~~~...~~~~~~~~~~~~~~~~~----~-~---~-~ ~~~-~ Aluminous schist unit ~~~~~~~~~~~~~~~~~ Upper quartzite unit ~~~~-~-~~--~-...~~~~ ~ ~ ~ Gneiss-schist-amphibolite unit -~~ ~~~~--- ~~~ ~ Contact, Gneiss-schist-amphibolite unitLower...unitLower quartzite unit Aluminous schist unit -~~~~~-~~ ____ --~ ~---~----~~-~---~-~----~ Upper quartzite...Altered ultramatics ~- ~~-~ -~-~--~-~~~ ~ Graphite schist _ Possible Correlations The Brevard Zone -------~------ |  | | Report (issue) | | dcecsnceedacacdseublceces 8 Undifferentiated muscovite schist (EZu)....... cece sec ce cence 8 Methcee SiltSCC...Sbels « cas cle cle a'a's 6 ala ole 9 Garnetiterous schist (GZ0GSIe obs. cent s ces clela's Soe see e's 0...Chloritoid-white mica schist (EZa).... cee ee ee eee eee eee eee 13 Albite-chloritoid-white mica schist (EZap)......os o's =e oo « © s\e sino aie 14 Noncarbonaceous schist and quartzite (EZhn)...........e2220-s 14 DGLOMICIC...ok ec ceccocesee Set SARE: Seca 14 Carbonaceous schist and quartzite (EZhnc)......22-.ee eee eee 14 Danette |  | | Journal (article/letter/editorial) | | te The word kyanite is derived from a Greek word meaning "blue," which is the color o f most specimens...specimens o f the mineral. However, kyanite is also greenish, gray, black and, on occasion, colorless. In Connecticut...Connecticut, the blue-colored kyanite is most common. In many cases, a specimen will exhibit random color...down the center of the crystal. Kyanite Described Kyanite in schist, Roxbury, (Connecticut; specimen...their original state were rich in clays. Hence, kyanite is found in schists and gneisses—typical metamorphic |  | | Journal (article/letter/editorial) | | GREENLAND II. TItE WESTERN METAMORPttIC COMPLEX A kyanite-garnet-gneiss was collected from the median moraine...rock with porphyroblastic crystals of garnet and kyanite. Generally, the garnets exhibit their shape, and...angles one to the other. In some individuals the kyanite has been twinned on the (100) plane. The felspar...is rich in highly aluminous minerals, such as kyanite and garnet. III. THE CENTRAL METAMORPHIC COMPLEX...gneiss is similar to that of a granite, and the occurrence of orthite is suggestive of an original igneous |  | | Report (issue) | | Quartz-mica-garnet schist--_--___-_______ Amphibole schist_______________________ Mica and graphite schist-________________...Quartz-mica-feldspar schist______________ Quartz-mica schist-_____________________ Meta-iron-f ormation ____________________...quartz-mica schist._____________ Quartz-biotite-garnet schist-_________________ Mica schist.__________..._____ Photomicrograph of staurolite-andalusite schist-________-_---___-_______________-_--------------------_...Sketch of boudinage structure in lower amphibole schist unit, Vanderlehr Formation._____________________ |  | | Book (volume) | | Sciences Universidad Complutense de Madrid Madrid, Spain José Tomás Oliveira LNEG Amadora, Portugal ISSN...recently published Geological Map of Portugal and Spain, 2015, scale 1:1,000,000. v vi Editors and Volume...Fernando Simancas teaches at the University of Granada (Spain). His main research interest is in the structural...Geociencias (UCM, CSIC), Universidad Complutense, Madrid, Spain C. Aguilar Centre for Lithospheric Research, Czech...Oviedo, Oviedo, Spain J. J. Álvaro Instituto de Geociencias IGEO (CSIC-UCM), Madrid, Spain Maider Armendáriz |  | | Journal (article/letter/editorial) | | ( 737 ) XXVIII.—Schist Geology : Braemar, Glen Olunie, and Glen Shee. By E. B. Bailey, M.C., B.A. (With...south-east of the quartzite important limestone outcrops are not met with for a considerable distance,...whereas northwest of the quartzite, limestone outcrops, referable to the Blair Atholl Series, are a characteristic...Garnetiferous Mica-Schist. (4) Ben Lawers Calc-Mica-Schist. (5) Ben Eagach Black (or Dark) Schist including transition... p. 101). The Islay evidence has been criti- SCHIST GEOLOGY: BEAEMAR, GLEN CLUNIE, AND GLEN SHEE. |  | | Report (issue) | | operating conditions, are kyanite, vermiculite and talc. The discovery of kyanite schists that may ultimately...16 16 20 22 W~-(3) (4) (5) (6) (7) (8) (9) Kyanite Gypsum Gamet Kaolin Vermiculite . . Gold Rutile...potential economic value containing such minerals as kyanite, talc, vermiculite, muscovite and garnet are described...unpublished reports on talc, muscovite, vermiculite and kyanite deposits in the area. Acknowledgments Thanks are...pelitic and semi-pelitic rocks, biotite scbists, kyanite-staurolite gneisses, homblende-biotite-garnet gneisses |  | | Report (volume) | | have been mapped as Hebron Formation and Scotland Schist. The Oakdale Formation is an unusually homogeneous...fault in southeastern Connecticut. The Scotland Schist, formerly mapped as the youngest formation, is...the northeast corner of the State. The Scotland Schist, considered the youngest formation according to...Paxton Quartz Schist (Emerson, 1917) in Massachusetts and Hebron Formation and Scotland Schist (Dixon and...previously mapped as Hebron Formation. The Scotland Schist, formerly mapped as a separate formation younger |  | | Book (volume) | | fields, etc.Staurolites; (c) numerous area minesKyanite; (d) the Bennett, Chapman and 148 A Location...areaAlmandite garnet; (g) harmony Church, area pegmatite outcropsBeryl; (h) Hickory Flat, 2 mi. NE on rd. to OrangeCorundum;...near Four Mile Church and Shiloh Church, minesKyanite; W 4½ mi., on N side of Bluff Cr., along Rte...National Cemeterybanded agate, mossy chalcedony, Kyanite, jasper. POWDER SPRINGS, S 2 mi., outcrop on Turner...smoky). ATLANTA, Emory University, area pegmatite outcropsQuartz crystals (clear, BARNESVILLE, THOMASTON |  | | Journal (article/letter/editorial) | | Mineral Equilibria in Interbedded Pelite and Calc-Schist Philippe Erdmer Department of Geological Sciences... Abstract. The interbedding of pelite and calc-schist in part of the contact aureole of a Devonian (biotite...e m o l i t e + K - f e l d s p a r in the calc-schist (combined with the andalusite-sillimanite equilibrium)...fine-grained graphitic pelite, quartzite, calc-schist and marble beds, commonly less than one metre thick...can be delineated in both the pelite and the calc-schist (Fig. 1). They are based on the first appearance |  | | Journal (article/letter/editorial) | | . . . . STRATIGRAPHY . . . . . III. OUTCROPS IV. PITCH V. AND STRUCTURE O F FORMATIONS...flooded, and that these deposits interrupt the schist outcrops for about a mile across the general strike;...significant alterations in the tracing of the Ben Eagach Schist and Cam Mairg Quartzite. As far as the structure...Quartzite, and the outcrop of the Killiecrankie Schist was laid down somewhat on the lines later adopted...noted. The first is the separation of the Beoil Schist, and calls for no special treatment. The second |  | | Journal (article/letter/editorial) | | the complex. However, two exposures of garnet-kyanite schist located along the southern edge of the metamorphic...the difference in metamorphic grade between the schist and gneiss is due to an intervening thrust fault...Lhasa-Qiangtang collision. Our P–T–t results indicate the occurrence of a significant Early Jurassic tectonothermal...exposures are predominately orthogneiss with minor outcrops of paragneiss, amphibolite, marble and quartzite...margins where there are large exposures of marble and schist with smaller exposures of quartzite and amphibolite |  | | Report (issue) | | other lime·rich minerals 48 J. Anda\usite, Kyanite and Sill imani tc 54 K. The Garnets 57 L................... ..'" Owing to their mode of occurrence in Manitoba, certain metallic oxides such as...non-metallic minerals that can be seen and studied in outcrops, quarries or rock-dumps within the province. Although...included because of their pegmatitic mode of occurrence in Manitoba, descriptions of the major metallic...Maps A to M (though not restricted to roadside outcrops) show some areas between the TransTrans Canada | | | Report (issue) | | operating conditions, L‘Dl'tLilllt'H‘P-‘t. are ltl'L‘ kyanite, kyunite vermiculite vermiculite and :tnd talc...talc. Lile. The The discovery discovery of of kyanite kyanite schists aching operating tin-.1 may inzty ultimately...containing containing such such m minerals as kyanite, kyanite. Deposits inerals as it'tiC. vermiculite,...TillL' Talc .. .. .. .. . 13) K}"Ll[1iIL‘ (3) Kyanite .. . . . . . m (4) (4) Gypsu Gypam . . .. .. ....heaviest rains. mine. road or track I“. Rocl. outcrops ottterorw‘ are are numerous numerom in in the |  | | Book (volume) | | Murphrees Valley, as a narrow strip of scattered outcrops about 5 mi. long⎯Manganese minerals. CALHOUN...area⎯Barite. CHEROKEE COUNTY CENTRE, area Miocene outcrops⎯tektites (dark green and dark blue tektites have...the Louisville and Nashville RR), area pegmatite outcrops⎯Muscovite mica; d SE Region: (a) B.T. Childers... R. 13 E, on S bank of a creek in the Hillabee schist⎯Arsenic, Arsenopyrite, Chalcopyrite, Copper, Gold...worked for gold.); d as minerals in a graphitic schist⎯Kyanite, Mica and Vanadium. 2 A Location Guide for |  | | Book (volume) | | Murphrees Valley, as a narrow strip of scattered outcrops about 5 mi. long⎯Manganese minerals. CALHOUN...area⎯Barite. CHEROKEE COUNTY CENTRE, area Miocene outcrops⎯tektites (dark green and dark blue tektites have...the Louisville and Nashville RR), area pegmatite outcrops⎯Muscovite mica; d SE Region: (a) B.T. Childers... R. 13 E, on S bank of a creek in the Hillabee schist⎯Arsenic, Arsenopyrite, Chalcopyrite, Copper, Gold...worked for gold.); d as minerals in a graphitic schist⎯Kyanite, Mica and Vanadium. 2 A Location Guide for |  | | Report (issue) | | interlayered metagraywacke, graphite schist, muscovite chlorite schist, calcareous zones and thin quartzites...dark gray to greenish-gray chlorite phyllite to schist with rare chloritoid porphyroblasts and layers...Marble and Joshua Schist formations. The Archer Creek is composed of graphitic schist and a marble member...is composed of a garnet mica schist and a garnet mica gneiss. The schist occurs predominantly along the...sillimanite a short distance away from the contact, and kyanite and staurolite in the outer zone up to 200 feet |  | | Journal (article/letter/editorial) | | recently secured one fine specimen of bright blue kyanite crystals in quartz, at the railroad cut just west...interest. In several of the muscovite and quartz schist outcrops which occur in Rock Creek Park (in D. C.) are...thick, in a dark grayish-black fine grained mica schist, have been received from Ernest H. Fisk, West Chesterfield...are approx., 4 " x 5"— this is the first known occurrence in Ohio These specimens have been turned over...on Betroka samples, was not observed. "A new occurrence of the rare mineral sapphirine has been reported |  | | Book (volume) | | also quarried a rough, porous flintstone from outcrops, especially around McArthur, Vinton Co., for making...Bolivar to Zoar Station, as nodules in limestone outcrops⎯flint. VINTON COUNTY AREA: c Swan Twp., on Upper...McCloud on Rte. 62 to Crater Lake: (a) area basalt outcrops⎯Natrolite; (b) draws, washes, slopes, etc.⎯Quartz...States FEASTERVILLE: c area outcrops⎯sunstone; d Triassic rock outcrops: (a) S and SE of Holland Sta...1½ mi. N of Woodburne Sta., (e) numerous other outcrops⎯agate, chalcedony, chert, silicified wood. MORRISVILLE: |  | | Report (issue) | | Facies _ _ Schist Facies Cataclastic Facies Pine Mountain Series Definition _ Sparks Schist Hollis Quartzite...Manchester Schist Brevard Series ______ _ Definition __ _ _____ __ _ Biotite Gneiss Mica Schist Marble ___...Definition Quartzite Biotite Gneiss Mica Schist _ ___ Graphite Schist Marble Little River Series ___ _ Definition...rocks (metasediments), including marble, talc, kyanite, ground mica, sand and gravel, and clay products...grinding is produced at Hartwell in Hart County. The kyanite-mica schists of Rabun and Habersham counties represent |  | | Book | | chance association of minerals or occasional occurrence in small quantities does not constitute a rock...constituents. Quartzite consists of quartz only, mica schist of quartz and mica, and eclogite of garnet and...period. These do not merely tell us about the occurrence and mining of minerals but also of the many magic...rhomb~shaped cross-5ection (B). b b a CRYSTALS ·rhe occurrence of well-developed crystals bounded by flat faces...('needle-like'), _feathe,:y (stibnite), bladed, iathlike (kyanite, Pl. 33, p. 157), etc. ' Radiating' means that |  | | Book (volume) | | also quarried a rough, porous flintstone from outcrops, especially around McArthur, Vinton Co., for making...Bolivar to Zoar Station, as nodules in limestone outcrops⎯flint. VINTON COUNTY AREA: c Swan Twp., on Upper...McCloud on Rte. 62 to Crater Lake: (a) area basalt outcrops⎯Natrolite; (b) draws, washes, slopes, etc.⎯Quartz...States FEASTERVILLE: c area outcrops⎯sunstone; d Triassic rock outcrops: (a) S and SE of Holland Sta...1½ mi. N of Woodburne Sta., (e) numerous other outcrops⎯agate, chalcedony, chert, silicified wood. MORRISVILLE: |  | | Book (volume) | | fossils. There are no igneous or metamorphic rock outcrops in Indiana. The four great periods of glaciations... FREMONT COUNTY AREA, all Devonian limestone outcrops, gemstone quality⎯fossil corals and stromatoporoids... Logan, Trego, and Wallace counties. Regional outcrops of shale disgorge Selenite crystals. ANDERSON...bodies occurring in Mississippian limestone with outcrops predominantly in the very corner of Kansas⎯chert...Rocks⎯Pyrite concretions; d S 5 mi., in Cretaceous outcrops (banks) of the Smoky Hill R., in lignite beds⎯Amber |
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