 | | Journal (article/letter/editorial) | | A Geochronologie Study of the Lone Grove Pluton from the Llano Uplift, Texas1 by R. E. ZARTMAN2 Division...some igneous and metamorphic rocks from the Llano Uplift, Texas, was undertaken to investigate, in detail...study of the Lone Grove granitic pluton and surrounding rocks from the Llano Uplift, Texas, suggests that...approximately 12 miles in diameter, called the Lone Grove body by Stenzel (1936) and renamed the Buchanan...earliest recognition of Precambrian rocks in central Texas was by T. B. Comstock (1890), who applied the terms |  | Smith, R.K., Gray, Walt, Gibbs, Tyson, Gallegos, M.A. (2010) Petrogenesis of Mesoproterozoic granitic plutons, eastern Llano Uplift, central Texas, USA. Lithos, 118 (3) 238-254 doi:10.1016/j.lithos.2010.05.002 | Journal (article/letter/editorial) | | Mesoproterozoic granitic plutons, eastern Llano Uplift, central Texas, USA R.K. Smith ⁎, Walt Gray 1, Tyson Gibbs...Sciences, The University of Texas at San Antonio, San Antonio, TX 78249-0663, USA a r t i c l e i n f o...Mesoproterozoic Grenville Llano Uplift Geochemistry Granite A-type Texas a b s t r a c t The Llano Uplift of central...central Texas is a gentle structural dome exposing ∼1370 to 1230 Ma metaigneous and metasedimentary rocks...TMG, the Marble Falls (MF), Kingsland (KL), and Lone Grove (LG) plutons, are metaluminous to marginally |  | | Journal (issue) | | pegmatitic and pegmatoid rocks, calcite-amphibole-pyroxene and calcite-perovskitemagnetite-pyroxene rocks...5.1.Pekov. The Baringer Hill Pegmatite Llano County, Texas Art Smith artsmithite@msn.com Introduction...purchased along with other Texas minerals. Also a collecting field trip to the Llano area was carried out during...possibly similar rare-earth pegmatite collecting in Llano and Burnet counties. It was hoped that such a compilation...(typically magnesiohastingsitc) and enriched by calcite and magnetite. Subordinate rock-forming constituents |  | | Report (volume) | | BULLETIN 450 MINERAL RESOURCES OF THE LLANO-BURNET REGION, TEXAS WITH AN ACCOUNT OF THE PRE-CAMBRIAN GEOLOGY........................ 14 Schists and gneisses (Llano series).................................. . 14 Divisions... ILLUSTRATIONS. Page. PLATE I. Geologic map of Texas............................................ 7 II...economic map showing locations of Burnet and Llano quadrangles, Texas.........................................Economic and geologic map of I/lano quadrangle, Texas........ In pocket IV. A, Assimilation of schist |  | | Report (issue) | | Steel Company at Heroult, on Pit River, Shasta County, and operated intermittently in 1907, 1908, and... Shasta County; the Gold Valley deposits, Sierra County; the Minaret deposits, Madera County; the Iron...Mountain, and Newberry deposits, San Bernardino County; and the Eagle Mountain deposits, Riverside 219... PART I. County. Of minor importance are the Patamocas or Beegum deposits, Tehama County; the Newtown...deposits, Nevada County; the Hotaling deposit, Placer County; the Detert deposit, Calaveras County; the Mount |  | | Journal (article/letter/editorial) | | Rb-Sr age of Precambrian rhyolitic dikes, Llano County, Texas STEPHEN E. DELONG Department of Geological...Geological Sciences, University of Texas at Austin, Austin, Texas 78712 ABSTRACT Rhyolite porphyry (llanite)...metamorphic rocks in north-central and southeastern Llano County, respectively. These dikes are chemically and...Key words: petrology, Precambrian geochronology, Llano uplift. INTRODUCTION Two distinctive types of rhyolitic...Precambrian metamorphic rock of the eastern Llano uplift in central Texas (Fig. 1). One type, first described |  | | Journal (article/letter/editorial) | | Granite, near Red Stone quarry, Conway, Carroll County, New Hampshire. Henry Minot specimen and photo...Teller and Park counties, CO, USA Crystal Park–Bear Creek, El Paso County, CO, USA Pikes Peak Granite NYF... 3 Mount Antero and Mount White, Chaffee County, CO, USA Mount Antero Granite NYF Miarolitic beryl...Mountains, Boise, Custer and Elsmore counties, ID, USA Sawtooth Granite in the Idaho batholith NYF Miarolitic... Moat Mountain and related areas, Carroll County, NH, USA Conway Granite in White Mountain intrusive |  | | Report (issue) | | ¥ TEXAS ROCKS AND \ r - An Amateur’s Guide ;s ROSELLE M. GIRARD A b OF ECONOMIC GEOLOGY V N IVERSITY...The University of Texas Austin, Texas Peter T. Flawn, Director Guidebook 6 TEXAS ROCKS AND MINERALS...Rock identification charts Descriptions of some Texas rocks and minerals Anhydrite .................................................................. Calcite .................................................Composition, hardness, and specific gravity of some Texas minerals Pace 25 26 39 40 43 43 43 44 45 46 47 |  | DENISON, RODGER E., KENNY, GEORGE S., BURKE, WILLIAM H., HETHERINGTON, ERNEST A. (1969) Isotopic Ages of Igneous and Metamorphic Boulders from the Haymond Formation (Pennsylvanian), Marathon Basin, Texas, and their Significance. Geological Society of America Bulletin, 80 (2) 245 doi:10.1130/0016-7606(1969)80[245:iaoiam]2.0.co;2 | Journal (article/letter/editorial) | | Research WILLIAM H. BURKE, JR. j Laboratory, Dallas, Texas ERNEST A. HETHERINGTON, JR. Isotopic Ages of Igneous...Raymond Formation (Pennsylvanian), Marathon Basin, Texas, and their Significance Abstract: Twelve whole-rock...Llanorian Orogeny. Ten samples were dated from Texas and Mexico in an unsuccessful search for the specific...DENISON AND OTHERS—AGES OF BOULDERS, MARATHON BASIN, TEXAS 410 m.y. (Middle Devonian to Upper Silurian). The...area, 10 samples from the outcrop and wells in Texas and Mexico were dated. ACKNOWLEDGMENTS The samples |  | | Journal (article/letter/editorial) | | ARTHUR E. SMITH, JR. 9118 Concho Street Houston, Texas 77036 ROBERT 0. FAY Oklahoma Geological Survey Norman...other species, including beautiful specimens of calcite, brochantite, and sphalerite. 0 k,,,ama, a state...October 2014 Mineral Index by Counties Alfalfa County Carmen, 2 mi. NE of Carmen, 1 .1 mi. W of Highway...Sandstone: malachite. Adair County Bunch, near Bunch, secs.l.5, 16, T.14N, R.24E: calcite (gray, massive, fluorescent...fluorescent and phosphorescent) (Gilmore 1963). Beckham County Malachite localities, SW1/4 SE1/4 sec.36 and SE1/4 |  | | Journal (issue) | | Pegmatite: A Rare Earth Pegmatite in Burnet County, Texas...............................................by Anthony Robert Kampf The Harding Mine, Taos County, New Mexico......................... 115 by Richard...cleave some calcite; test the magnetism of the lodestone and the double re fraction of calcite. ■ Bring...between Minot and Auburn, Maine, in Androscoggin County. The Pulsifer quarry, along with the Keith and...STEVENS, J.P. (1972) Gems and minerals o f Oxford County. Published by Perham’s Maine Mineral Store, 136-153 |  | | Report (volume) | | minerals of wide distribution, such as quartz and calcite, have been omitted, except those that by some unusual..........Mr. George H. Ashley, Washington, D. C. Texas............Dr. William B. Phillips, Austin. Vermont...See Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton;...following localities: Bibb County, Pratts Ferry; Calhoun County, near Tampa; Clay County, T. 20, Pv. 7 E.; Jefferson |  | | Journal (article/letter/editorial) | | Some plagioclases show alterations to epidote, calcite, and sericite. The amphiboles typically show euhedral...and associated with biotite altered to chlorite, calcite, and epidote. Biotite typically Figure 2. Outcrop...granites with the Lone Grove (LG) and Kingsland (KL) intrusions from central Texas (Smith et al., 2010)...(King et al., 2001), LG (Lone Grove), and KL (Kingsland) from central Texas (Smith et al., 2010). This...D.F., Horton, B.K., Axen, G.J., Stockli, L.D., Grove, M., Schmitt, A.K., Walker, J.D. 2008. U–Pb zircon |  | | Report (volume) | | 248 259 269 271 275 281 r 4 CONTENTS. Page. Texas...................................................that are widely distributed, such as quartz and calcite, have been omitted, except those that by reason...New Mexico, Oregon, South Dakota, Tennessee, and Texas; to list all the literature consulted would be impracticable...Phillips, W. B., The mineral resources of Texas: Univ. Texas Bull. 365, Sci. Ser. 29, 1914. Among other...See Bauxite and Halloysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found |  | | Report (issue) | | Geologic map of Crystal Graphite mine, Beaverhead County, Mont. 10. Map of mine and treatment plant of Southwestern...Benjamin Franklin and Just graphite mines, Chester County, Pa. Page FIGURE 12. Map of localities of principal...240 21. Map of localities of graphite deposits, Llano and Burnet Counties, Tex-___-____________-__-__...of graphite mines and prospects in part of Clay County, Ala-_--_-----_----------------_--------24. Map...and Faxon mine properties, near Graphite, Warren County, N.Y_____ 29. Geologic map of Hooper Bros, graphite |  | | Report (issue) | | Ordovician Arbuckle Groups, Oklahoma and western Texas A4 4. Generalized Late Proterozoic and early Paleozoic...structural feature in Late Mississippian time, when the Texas promontory of the southern continental margin of... Marathon reentrant; O, Ouachita reentrant; T, Texas promontory of prePennsylvanian continental margin...Hollis basin shown in fig. 1) along the Oklahoma-Texas border south of the Wichita Mountains A2 Evolution...Ordovician Arbuckle Groups, Oklahoma and western Texas. Contour interval, 1,000 and 2,000 ft; contour hachured |  | | Journal (article/letter/editorial) | | phlogopite crystals, occurring in a matrix of calcite and plagioclase to be ~435 8C, and at least 50...449119, which contains about 25 vol.% phlogopite. Calcite, dolomite and plagioclase represent the bulk of...this study occurs in a matrix of plagioclase and calcite, both phases that can act as sinks for the radiogenic...(~2 8C/myr) crystals occurring in a matrix of calcite and plagioclase (representing N80% of the rock...Tin Mountain pegmatite, Black Hills, South-Dakota—USA. Geochim. Cosmochim. Acta 58, 3845 – 3853. Kqhn, |  | | Book (volume) | | Associated Oil & Gas Co., No. 1 Sells, Pi ckett County; elevation 900 rt.; total depth 5,800 ft.; depth...Precan1brian 4,920 ft.; lithol- PRECAMBRIAN OF THE USA: SOUTHEASTERN 7 of the ,vells tabulated ,vere drilled...rocks in representative Reference nu1nber ,,rell County Elevation f l. Depth to top ' 1'<,Lal depth of...(17) National Assn. Petroleum No. 1 Ella Walker County Elevation ft. 1 Depth to top Total depth of...PHILIP B. KING 1'ABLE Reference nu1nber vVell County ElevaLion ft. 1 Depth to top Total depth of |  | | Report (volume) | | Geological Societies Transactions. San Antonio, Texas. Harvard Coli. Mus. Comp. Zoology BulL-Harvard College...Technology-Journal of Petroleum Technology. Dallas, Texas. Jour. Sed. Petrology-Journal of Sedimentary Petrology... Amarillo, Texas. Petroleo Interamericano. Tulsa, Okla. Petroleum Engineer. Dallas, Texas. Petroleum...Petroleum Rev.-Petroleum Review. Houston, Texas. Photogrammetric Eng.-Photogrammetric Engineering. Washington...Tenn. Texas Board of Water Engineers Bull.----Texas Board of Water Engineers Bulletin. Austin, Texas. Texas |  | | Journal (article/letter/editorial) | | (Sandstone-Shale) This sample was collected from the Granville Grove/Auber Villiets Farm area (Figs. 1 and 2). The area...area on the farms Auber Villiers and Granville Grove. This map typifies the complexity of the Dz-related...samples; this could be attributed to precipitated calcite within the stromatolite now pseudomorphed by silica...(anhy~te inclusions?) and remnants of an early calcite phase for the bar&e and stromatolite samples, respectively...geochronologic study of the Lone Grove Pluton from the Llano Uplift, Texas. J. Petrol. 5, 359-408. APPENDIX |  | | Report (volume) | | Pub. Co. Texas, Tordilla Hill area, color: Shale nomenclature: Clark, T. H. ,6. South Texas Geol. Soc...described. Div. Mines, 1; Jenkins, O. P., Choctaw County, Highway 17 area: 3. Toulmin, L. D., Jr., 3. Minor:...analysis: KelH. D., 5. ler, W. D., 3. Talladega County, hematiteOklahoma, potash agstone, granite magnetite...ground water: Powham, C. E. ell, W. J., 4. Marengo County: Newton, J. G., 1. Core-drilling program, ChattanooMica:...J.,4. Excursion, Tertiary type-localiMontgomery County: Reade, ties: Rainwater, E. H. , 1. H. L. , Jr |  | | Report (volume) | | 5 in., inch or inches. Circ., Circular. Co., County or Company. Indus., Industrial. Inst., Institute...Pre-Cambrian : Central southern Virginia (Mecklenburg County). F. B. Laney, 1917 (Va. Geol. Surv. Bull. 14,...formation. Permian : Central and central northern Texas. W. E. Wrather, 1917 (SW. Ass. Pet. Geol. Bull....Pleistocene : Southern South Carolina (Charleston County). E. Sloan, 190 (S. C. Geol. Surv. geognostic map...Blaine formation.) Permian : Central northern Texas and Texas Panhandle (Hardeman to Stonewall Counties) |  | | Journal (article/letter/editorial) | | The Blue Ridge in the western part of Fauquier County, Va., is capped by altered amygdaloidal volcanic...degrees of metamorphism. In some places, Iarge calcite plates and crystals have developed; in other places...Jnnsnv, by Alfred C. Hawkins. Two heart-shaped calcite twins showing identical forms occurred together...masses of central Texas. The wolf Mountain granite and a nearby granite (Lone Grove) are characterized |  | | Report (issue) | | Arbuckle and Wichita Mountains __________________ Llano uplift __ __ ____________ ____________ __ ________...-- ---- -------- --- ----Precambrian of western Texas (mainly Precambrian Y) Precambrian Z supracrustal...basement __ ___ _______________ 14. Llano uplift, central Texas, showing Precambrian and surrounding..._________________ 67 26. Map of Van Horn area, west Texas, showing Precambrian rocks and their relations to...across Precambrian rocks of Van Horn area, west Texas, showing structural relations of the different units |  | | Journal (article/letter/editorial) | | clinopyroxene, biotite, chlorite, hornblende, pumpellyite, calcite, and an opaque mineral or minerals. 0361-0128/98/000/000-00...geochronological study of the Lone Grove pluton from the Llano uplift, Texas: Journal of Petrology, v. 5...quartz (± chalcopyrite ± sphalerite ± galena ± late calcite) veins cutting across bedding in tan, very fine...(partially altered to chlorite) with secondary calcite, chlorite, and pumpellyite; avg grain diam ~0.5 |
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