 | | Report (issue) | | pegmatite in granite, Short Tom Smith mine, Rockingham County, N. C______ ____ ____________________ ...between pegmatite and granite, E. R. Self mine, Gaston County, N. C____________________ 6. Sinuous discordant...wall, Knight mine, Rockingham County, N. C- ~ -7. Sharp hanging-wall contact, Knight mine ______ _______________...of granite underlain by schist, Hawkins mine, Stokes County, N. C _ _ _ _ _ _ __ _ _ __ _ _ _ _ _ 9....and other units in the Big Bess pegmatite, Gaston County, N. C _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ |  | | Journal (article/letter/editorial) | | Geophysics, University of Oklahoma, Norman, OK 73019, USA a r t i c l e i n f o Article history: Received...twin planes. Swamp dike, Little Three mine, Ramona, California (USA). Pegmatites share textural features...pegmatite from near Palomar Mountain, San Diego County, California, shows typical zonation and texture...pegmatite at the San Diego mine, Mesa Grande district, San Diego County, California (USA), in which large K-feldspar...K-feldspar, in the lower wall zone at the Tanco mine, Bernic Lake, Manitoba (Canada). (b) Tourmalinerich |  | | Journal (article/letter/editorial) | | AKHTER (S. M.), see QAISER(M. A.), 735. Alaer6n mine, Copiap6, Chile, arsenolamprite, 732. Ala di Stura...montebrasite, 4r4. Amblygonite mine, Caceres, Spain, montebrasite, 414. Amelia County, Virginia, albite, I56;...Bala Durga Gourishankar mine, Tummalatalupur, Nellore, India, microcline perthite, 135 BALDANZA(B.), LEvI-DONATI(G...Crystallization of anorthite, 78o. Bhavani Sankar mine, Tummalatalupur, Nellore, lndia, muscovite, I4O...Btn~WORTH(D. W.), Sintering of ceramics, 833. Bultfontein mine, South Africa, omphacite, 6I; peridotite xenoliths |  | | Journal (article/letter/editorial) | | Geological Sciences, University of North Carolina, Chapel Hill, NC 27599-3315, USA e-mail: Breck.Johnson@anadarko... 1201 Lake Robbins Dr, The Woodlands, TX 77380, USA required late growth of K-feldspar, explains the...g., Eggleton 1979; Vernon 1986; Bateman 1992; Williamson 1999; McMurry 2001; Baxter and Feely 2002; Dahlquist...locations (green triangles) for data in (Fig. 5) USA 119o 34' 38o 11' CA 119o 10' 38o 11' TUOLUMNE...megacrystic granodiorite on the western half of the suite north of Tenaya Lake (Fig. 1). Phenocryst size measurements |  | | Journal (issue) | | ········································345 rRON HILL IRON MINE. By C. Henry King ·····························................................368 NOTED TRUMBULL MINE CLOSED To COLLECTORS ..................................................... ....... 375 SQUAW PEAK MINE. By Edison Thacker ...............................377 DID ANCIENT MOUND BUILDERS GET MICA FROM NORTH CAROLINA DEPOSITS ? ..................................and adjacent to the left side of the road, going north towards Broadway, in Jersey City. It is opposite |  | | Report (issue) | | Cretaceous or Tertiary Systems_________________ Williamson Canyon Volcanics._______________ Lithology-_...and prospects of the Athletic Mining Co__ Arizona mine _ ________________________ Fairview prospect _ ...ead Center mine. _____________________ Iron Cap mine. ________________________ No. 1 mine __ _________________________..._________________________ Panama mine. _________________________ Other mines and prospects. __________________...Lead King mine. ________---_--------_-Orejana mine_______________-______-____ Princess Pat mine. _____________________ |  | | Journal (article/letter/editorial) | | Austell, Cornwall By J. H. WEYMOUTH and W. O. WILLIAMSON (PLATE II) ABSTRACT The granite consisted chiefly...clay and their behaviour noted (Weymouth and Williamson, 1953). Webb and co-workers elucidated some of...XCIV NO. 1 6 70 J. H. Weymouth and W. O. Williamson— 1 and 2 respectively. The rock was chiefly...AND OPAQUE IRON-OXIDES. Albite Quartz Muscovite Perthite . Fluorite . Topaz Apatite Tourmaline Others ...was contiguous to the perthite and may have been cryptoperthite. The perthite of Table 1 is both the |  | | Report (issue) | | The granodiorite intrusion of Cushleake Mountain, County Antrim, Northern Ireland • i r , • .,, �...granodiorite intrusion of Cushleake Mountain, County Antrim, Northern Ireland R. K. Harrison and H...the granodiorite intrusion of Cushleake Mountain, County Antrim 2 2 Larsen variation diagram for some Caledonian...The granodiorite intrusion of Cushleake Mountain, County Antrim, Northern Ireland. Rep. Inst. Geol. Sci... The granodiorite intrusion of Cushleake Mountain, County Antrim, Northern Ireland R. K. HARRISON and |  | Sánchez-Muñoz, Luis, Müller, Axel, Andrés, Sol López, Martin, Robert F., Modreski, Peter J., de Moura, Odulio J.M. (2017) The P–Fe diagram for K-feldspars: A preliminary approach in the discrimination of pegmatites. Lithos, 272. 116-127 doi:10.1016/j.lithos.2016.10.030 | Journal (article/letter/editorial) | | Geological Survey, Federal Center Denver, CO 80225-0046, USA. AC CE P ABSTRACT Governador Valadares, Minas...pegmatites. Keywords: K-feldspar, pegmatites, perthite, trace elements, LA-ICP-MS data, P-Fe diagram...areas of K-rich feldspar making up the blocky perthite from the voluminous intermediate zone of zoned...example in the Grenville orogen of northeastern North America and in southern Scandinavia, with an asymmetric...Grenville age are typical LCT pegmatites, whereas the North American examples, as in the Pikes Peak district |  | | Report (chapter) | | coarse-grained granite (perthite, hedenbergite, amphibole, biotite, +_fayalite) to peralkaline (perthite, aegirine-augite...fine-grained granite (perthite, biotite, chlorite, _+amphibole); K5', medium-grained granite (perthite, amphibole...granite (perthite, oligoclase, amphibole, biotite); K7, fine- to coarse-grained granite (perthite, oligoclase...fine-grained granite (perthite, oligoclase, biotite, chlorite); K9, granite porphyry (perthite, oligoclase, biotite...astrophyllite); K 11, coarse-grained granite (perthite, amphibole, biotite); K 12, finegrained granite |  | Vonopartis, Leonidas, Nex, Paul, Kinnaird, Judith, Robb, Laurence (2020) Evaluating the Changes from Endogranitic Magmatic to Magmatic-Hydrothermal Mineralization: The Zaaiplaats Tin Granites, Bushveld Igneous Complex, South Africa. Minerals, 10 (4) 379 doi:10.3390/min10040379 | Journal (article/letter/editorial) | | Vergenoeg fluorite mine [6,7]. was the notable, world-class, Vergenoeg fluorite mine [6,7]. Cassiterite...Strauss [27] and the closure of the Groenfontein tin mine, which is on the northern edge of the intrusion...Thus, since Strauss [27] and the closure of the mine in the early thethe main body of the andBobbejaankop...Lease been more or less Groenfontein tin 1930s, mine in early 1930s, theBobbejaankop main body of the...Geology 2. Regional Geology The Groenfontein tin mine is situated 30 km northwest of Mokopane and 2 km |  | | 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 |  | | Report (issue) | | ____ Districts in Appalachia__________________ North Carolina_____________________ South Carolina_____________________...___________ Ne~ 1:ork_________________________ North Carolina__ _ ________ __ ______ __ Ohio________...Georgia_________________ Deposits in North Carolina__________ Deposits in South Carolina and Virginia____________________________...pinnacles beneath soil cover, Bluegrass, Highland County, Va_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _...transverse joints cutting shale at Poverty, Highland County, V a_ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ |  | | Book | | 200 known here-holds the productive Mwadui diamond mine, known for Yeryfine, rare, pink diamonds. Emerald...of the 'Irelawney Collection of the Los Angeles County Museum of Natural History. ♦ Figures vii Foreword...Appendix B. East African Gemstones in the Los Angeles County Museum of Natmal History Collections 138 Appendix...Mwadui or Williamson pipe. 17 Figure 2.3. Dr. fohn T. Williamson. 20 Figure 2.4. Williamson Mine and operations...Figure 2.5. A 2. 9-carat pink diamond from the Williamson Mine. 25 Figure 3.1. Distribution map of ruby and |  | | 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 |  | | Report (issue) | | under a cooperative agreement with the State of North Carolina and the Tennessee Valley Authority Physical...under a cooperative agreement with the State of North Carolina and the Tennessee Falley Authority UNITED...Production of sheet and punch mica, 1912-14, in North Carolina, the Southeastern States, and the entire United...data for mica specimens, arranged by lot and by mine or prospect-_-___--_-___-_-.___---___-_____--_ Results..._______________ 13. Test data for mica (not identified by mine), taken from the production line of the Colonial |  | | 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 |  | | 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 |  | Tegner, C., Storey, M., Holm, P.M., Thorarinsson, S.B., Zhao, X., Lo, C.-H., Knudsen, M.F. (2011) Magmatism and Eurekan deformation in the High Arctic Large Igneous Province: 40Ar–39Ar age of Kap Washington Group volcanics, North Greenland. Earth and Planetary Science Letters, 303 (3) 203-214 doi:10.1016/j.epsl.2010.12.047 | Journal (article/letter/editorial) | | Ar–39Ar age of Kap Washington Group volcanics, North Greenland C. Tegner a,⁎, M. Storey b, P.M. Holm...Sciences, University of California, Santa Cruz, USA e Department of Geroscience, National Taiwan University...feldspar and whole-rocks from trachyte flows. Patch perthite feldspars and coeval resetting of Rb–Sr isotopes...eastwards displacement of Greenland relative to North America. The alkaline suite, therefore, may be unrelated...Greenland, pushing Greenland northwards relative to North America. The tectonic setting in the High Arctic |  | | Report (issue) | | GEOLOGY AND MINERAL RESOURCES OF SAN DIEGO COUNTY, CALIFORNIA By F. HAROLD WEBER JR., California...; and Cleveland; and Arsenic, and parts of several sections, by R. M. Stewart COUNTY REPORT California...CAMPBELL, Director AND GEOLOGY State Geologist COUNTY REPORT ^ Price $8.00 3 CONTENTS Page ABSTRACT...Land closed to prospecting and mining City and county zoning Water for mining operations Previous descriptions...deposit Cesium Clay, by George B. Cleveland Kelley Ranch mine Linda Vista mine ... Pacific Clay Products Company |  | | Book | | Histories of the Dividing Line betwixt Virginia and North Carolina, William Byrd. $2.00 (tent.) Geographical Essays...professional geologists who may fail to realize that we “mine” such common materials as sand, gravel, and clay...shipped from county to would do as well), it rapidly decreases to place value is shown county, still less...extended to refer to the exploitation itself. The term mine is generally understood to refer to underground...limit, beyond which it will be un- economical to mine or quarry the material. Increase in the magnesium |  | | Journal (article/letter/editorial) | | medium-grained perthite-aegirine-augite-Na-Ca-amphibole biotite granite; 6 (T3) - coarse-grained perthite-aegirine-augite-Na-and...Na-Ca-amphiboles; 7 (T4) - perthite-oligoclaseamphibole-biotite granite; 8 (T5) - fine-grained perthite-oligoclase-biotite...groundmass) T2: Medium-grained granite (quartz, perthite, aegirine-augite, Na- and Ca-Na-amphiboles) T3:...T3: Coarse-grained granite (quartz, perthite, aegirine-augite, Na- and Ca-Na-amphiboles) T4: Heterogeneous...(quartz, perthite, oligoclase, amphibole, biotite ) T5: Fine-grained granite (quartz, perthite, oligoclase |  | | Book | | come not merely from one district but from a single mine. Thus the physical properties of many rocks and...eclipsing the mineral magnesite in some areas; the trona mine rather than the Solvay plant is now the main source...for example, are almost entirely derived from the USA and Tur- key, a situation too narrowly based comfort... The takeover of soda-ash markets, at least in North America, by the mineral trona is another marked...Geology of Industrial Minerals, held annually in North America, provide much geological and related information |  | Breiter, K., Ďurišová, J., Hrstka, T., Korbelová, Z., Vašinová Galiová, M., Müller, A., Simons, B., Shail, R.K., Williamson, B.J., Davies, J.A. (2018) The transition from granite to banded aplite-pegmatite sheet complexes: An example from Megiliggar Rocks, Tregonning topaz granite, Cornwall. Lithos, 302. 370-388 doi:10.1016/j.lithos.2018.01.010 | Journal (article/letter/editorial) | | Galiová, A. Müller, B. Simons, R.K. Shail, B.J. Williamson, J.A. Davies PII: DOI: Reference: S0024-4937(18)30014-8...Galiová, A. Müller, B. Simons, R.K. Shail, B.J. Williamson, J.A. Davies , The transition from granite to...TR5 0A5, United Kingdom MA R.K. Shail, B.J. Williamson, J.A. Davies, Camborne School of Mines, College...composite St Austell Granite; the Meldon Dyke, north of the Dartmoor Granite, is a topaz aplite (Simons...medium-grained porphyritic two mica Godolphin Granite in the north, and the Tregonning Granite in the central and southern |
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