 | | Report (issue) | | Sierra Nevada- Klamath suture system into eastern Oregon and western Idaho By Anna Hietanen. GEOLOGICAL...Feather River area (the Melones, Camel Peak, and Big Bend faults; Hietanen, 1973a, 1976,1977). In the southern...microscope indicates that this limestone consists of calcite with o>=1.668 to 1.673, accompanied by very little...pebbles consist of metachert or quartzite, but calcite or calcite-quartz pebbles are common. Metachert in the...chlorite, and albite and some large grains of calcite and subhedral to rounded phenocrysts of albite |  | | Journal (article/letter/editorial) | | 1329 Arizona Economic geology Aluminum, Maricopa county, Wickenberg (Sheridan, Michael F , et al.) tt-t2...(Mclean, W. John, er a/.) 7-E 1103 Hemihedrite,Pinal county, Florencemine, Maricopacounty, Wickenburg,Rat Tail...a/.) 7-8 1088 Kinoite, SantaRita mountains,Pima county (Anthony, John W., er a/.) 5-6 7O9 Phoenicochroite...l-12 1857 Austria Geochemistry Deutsch Altenburg, calcite l1-12 2ll8 ( K e l l y , C h a r l e sJ . , J r...er a/.) 1.2 224 Breccia Intrusive Utah, San Juan county, MosesRock dike, kimberlite (McGetchin, Thomas |  | | Journal (issue) | | of the Zuma Volcanics POINT DUME Los Angeles County, California By EARTH SCIENCES BOARD University...by pre-exist- Photo 1. Point Dume, Los Angeles County. The rocks that make up the cliff face on the point...Volcanic rocks of the El Mod- eno area, Orange County, California: US. Geological Survey Professional...the central Santa Monica Mountains, Los Angeles County, California: U.S. Geological Survey Bulletin 1457-...east-central Santa Monica Mountains, Los Angeles County, California: U.S. Geological Survey Map I-1146 |  | | Journal (article/letter/editorial) | | pegmatite was mined at Barringer Hill in Llano County in the early 1900s but was flooded by Lake Buchanan...on "The Weeks Pegmatite Mine, Wakefield, Carroll County, New Hampshire" (March/April 1991). i i ⢠I...E l Paso Ellis Fannin Fayette Fisher Foard Fort Bend Galveston 41 Garza 42 Gillespie 43 Gonzales 44...66, May/June 1991 197 LOCALITIES BY COUNTY Bastrop County KEY mm T * ? â â â â best occurrence..."specimen quality" questionable occurrence Angelina County Lufkin, 1 mile N of Lufkin in railroad cuts, in |  | | Report (issue) | | ................................... 2 Horseshoe Bend Formation ........................................................ 7 Phyllite unit south of the Big Bend fault .................................... 7 Mesozoic...Geologic map of the Berry Creek quadrangle, Butte County, California .....................................contact aureoles of the plutons, and within the Big Bend fault zone, which crosses the area parallel to...Berry Creek was described by Compton (1955). The Big Bend fault zone, which extends from the northwest corner |  | | Report (issue) | | the Canyon Mountain complex ophiolite, eastern Oregon. Crossed nicols; area shown is 2 mm x 2.6 mm. (Photo...A note on newly discovered kimberlites in Riley County, Kansas William L. Mansker, Bill D. Richards, and...petrography of the Twin Knobs ttl lamproite, Pike County, Arkansas . 205 Michael A. Waldman, Tom E. McCandless...Potash Sulfur Springs igneous complex, Garland County, Arkansas Robert E. Zartman and J. Michael Howard... Contents Slickrock Mountain intrusive complex, Big Bend National Park, Texas . vii 305 Elizabeth Hill |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.âŻcone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Toddâs Ford, a mineral depositâŻHematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarriesâŻoilstone. DELAWARE COUNTY DELAWARE...nodulesâŻPyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay...HIGHLAND COUNTY SINKING SPRING, area ore deposit (most important in Ohio) âŻHematite. HOCKING COUNTY AREA |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.âŻcone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Toddâs Ford, a mineral depositâŻHematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarriesâŻoilstone. DELAWARE COUNTY DELAWARE...nodulesâŻPyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay...HIGHLAND COUNTY SINKING SPRING, area ore deposit (most important in Ohio) âŻHematite. HOCKING COUNTY AREA |  | | Report (chapter) | | control on extensional fault propagation folding: Big Brushy Canyon monocline, Sierra Del Carmen, Texas...Institute, 6220 Culebra Road, San Antonio, TX 78238, USA (e-mail: dferrill@swri.org) Abstract: Mechanical...(Buda Limestone) (Fig. 2c). On the western flank of Big Brushy Canyon, a monocline has developed in the Del...folding in a mechanical multilayer in west Texas, USA (Fig. 2). The fault has a strike length of approximately...Santa Elena Limestone (fault scarp in foreground), Big Brushy Canyon, Sierra Del Carmen, Texas, view is |  | | Journal (article/letter/editorial) | | deposits in northwestern Nevada and southeastern Oregon, USA Stephen B. Castor ) , Christopher D. Henry NeĂada...School of Mines, Mail Stop 178, Reno, NV 89557, USA Received 14 June 1999; accepted 24 September 1999... Abstract Northwestern Nevada and southeastern Oregon have the largest uranium Ĺ˝U. deposits in Tertiary...and pyrite. Deposits in the Lakeview U district, Oregon are hosted by weakly peraluminous rhyolite domes...Nevada and southeastern Oregon Ĺ˝Fig. 1; Table 1.. Only the Lakeview district, Oregon had significant production |  | | Book (volume) | | beds, excavations, etc.ďžSelenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm...ďžgray Barite rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides...gravels, etc.ďžpetrified wood, wood opal. CORSON COUNTY LITTLE EAGLE: ď area ridges, slopes, stream beds...Guide for Rock Hounds in the United States CUSTER COUNTY AREA: The November Mine, 1.2 mi. SE of the Needles...of rd. a few yds., outcropďžRose Quartz. DOUGLAS COUNTY CORSICA, S on US 281 to Armour, area rd. cuts, |  | Bramel, Hadley R., Heyl, George R., Cox, Manning W., Ransome, Alfred L., Eric, John H., Wyant, Donald G. (1948) Copper in California. Bulletin 144. California State Mining Bureau | Report (issue) | | Heyl 77""V" Zinc-Copper Deposits of the Big Bend Mine, Butte County, California, bv John H. Eric Geology...Geology of the Lilvama and Pioneer Mines, El Dorado County, and California, by Manning W. Cox, Donald C. Wyant...---"--7-1, George R. Heyl by George California, County, Newton Copper Mine, Amador R. Heyl and John H...H. Eric ""~V" Pemi Zinc-Copper Mine, Calaveras County, California, by George R. Hevl, Manning W. Cox,...Gravhouse Area, Amador County, California, by George T"" R. Heyl -;;â Calitornia, County, Calaveras Copperopolis |  | Edelman, Steven H., Day, Howard W., Moores, Eldridge M., Zigan, Steven M., Murphy, Thomas P., Hacker, Bradley R. (1989) Structure across a Mesozoic ocean-continent suture zone in the northern Sierra Nevada, California. GSA Special Paper 224. Geological Society of America | Report (issue) | | Knoxville, and National Science Foundation (NSF) Grant EAR 84-17894 to Robert D. Hatcher, Jr.; and financial...78-03460 and EAR 80-19697 to E.M.M. and H.W.D.; Grant EAR 85-16262 to H.W.D. and M. E. Bickford supported...âMelones fault zone,â and Dogwood Peak, Gillis Hill, Big Bend, and Wolf Creek faults; Fig. 1). These faults...surmise that rocks between the Dogwood Peak and Big Bend faults include rocks correlative with the late...in Calaveras volcanic unit. into north-central Oregon (Hotz and others, 1977). The Red Ant Schist is |  | | Journal (issue) | | via Facebook AgATE FIELDs I have lived in the Big Bend of Texas for over 20 years, and have led rockhunters...and curated a museum of rocks and gems of the Big Bend region. I think that experience is enough to allow...finding a quartz scepter is extremely rare in the Big Bend, the occurrence of citrine is not rare at all...there are many, many similar agate fields in the Big Bend Region which offer great finds to those with permission...claiming that his agate field is âunique in the Big Bendâ. â teri smith, via email sAFETY sEnsE I just |  | | Journal (article/letter/editorial) | | Location: Bluffs at the big bend of the Cowlitz River, 1 mile east of Vader, Lewis County, in NW /*, 1 SE>/4...Highway 12 north and south of Porter, Grays Harbor County, in Sec. 21 and 28, T.17N., R.5W. of the Malone...north of Galvin, 4 miles N W of Centralia, Lewis County, in S W ! 4 , Sec. 26, T.15N., R.3W. of the Rochester...River bridge and west of K M Mountain, Wah kiakum County, in N E / * , Sec. 16, T.10N., R.7W. of the Grays...just west of the West Twin River bridge, Clal lam County, in SW /*, Sec. 23, T.31N., R.10W. of the Twin |  | | Journal (article/letter/editorial) | | TEXASBluefluorescing Calcite Part I ONE OF THE MOST BEAUTIFUL and interesting fluorescent minerals is calcite from Terlingua...shortwave with a persistent blue phosphorescence. This calcite is probably the best example of a mineral fluorescing...collections of fluorescent minerals. I have such calcite. For a long time, I had been hearing of the mercury... Texas (1927). Photo courtesy Archives of the Big Bend, Sul Ross State University. Figure 3: The retort...adjacent to the western edge of Big Bend National Park in Brewster County. Study Butte, with a gas station |  | | Report (issue) | | while portions of the north parts of Yarrow and Kimberley also received attention. During the season of...of the Montreal river above the Long Rapids in Kimberley township con sists of a series of lake expansions...in their hydro-electric survey of Matachewan or Big Bend falls. At the west end of the pond there is a...7 and discharo-inoO O easterly from opposite the big island. The old course of the West Branch followed...colour. The rock also contains a number of white calcite veins. One mile northeast of Fox rapids, there |  | | Report (issue) | | contact deposits _____________ _ 55 Deposits in calcite veins in the Boquillas flags __ 59 Deposits in...descriptions ____________________ .:. __ _ 65 Calcite _______________________________ _ 66 Clay minerals...cave-fill zone at the Mariposa mine; B, bulbous calcite vein on a fracture, showing strike-slip movement...Limestone-clay contact deposit, main stope, Fresno mine; B, calcite vein with cinnabar in Boquillas flags on 250-level...Devils River limestone with cinnabar replacing calcite; B, cinnabar repl~cing calcareous matrix of Two-Forty-Eight |  | | Journal (issue) | | events on the desert TRAVEL Boat Ride on the Big Bend By RANDALL HENDERSON Roving Reporter of the Desert...Magazine, Palm Desert, California "The Basin" in Big Bend National Park. This is the concession area where...the Big Bend ... Nine years ago Congress set aside over 700,000 acres of arid land in the Big Bend country...Uncle Sam made a park of itâthe Big Bend National Park. The Big Bend country has everything â timbered...Desert Magazine should tell its readers about the Big Bend desert in Texas. Before our conversation ended |  | | Journal (article/letter/editorial) | | cappingday unit, (3) thosein westernand central Oregon mostly in ill-defined fractures and irregular faults... GEOLOGY OF QUICKSILVER DEPOSITS. 44-1 fornia,5 Oregon,6 and Texas,7haveissuedsummarydescriptions of their...Oct. 1939. 6 Schuette,C. N.: Quicksilverin Oregon. Oregon Dept. Geol. and Min. Indus., Bull. 4, 172 pages...on the Terlingua quicksilver district, Brewster County, Texas. Geol. of Texas, Univ. Texas Bull. 3401:...Quicksilverdepositsof the Mount Diablo district, Contra Costa County, Calif. U.S. Geol. â˘3urv. Bull. 922-B: 31-54, 1940 |  | | Report (issue) | | contain pumpellyite+chlorite, analcime+chlorite and calcite+chlorite assemblages (Swanson and Schiffman, 1979;...constrained by limiting reactions. One Marin County, contains a diopside+ garnet+ pargasite assemblage...California: Tectonics, and Lanphere, M. A., from Oregon and California: Geological Society tin, v. 82,...basalts from the Franciscan Complex, western Marin County, California: Contributions and Petrology, v. 69...blocks in the Franciscan Complex, California and Oregon: Journal of Metamorphic Geology, the v. breakdown |  | | Report (issue) | | (Geology)âTexasâPresidio County. 2. Domes (Geology)-TexasâBrewster County. 3. GeologyâTexasâPresidio County. 4. GeologyâTexasâBrewster...GeologyâTexasâBrewster County. I. Corry, Charles E., 1938âII. Geological Society of America. III. Title:...Corporation) to work on the Solitario portion of their Big Bend Ranch. Special thanks are extended to Earl Ashley...Ashley, Phelps Anderson, and Ralph Hager of the Big Bend Ranch for their help during the field work. Over...by National Aeronautics and Space Administration Grant NGL-32-004-011 through the University of New Mexico |  | | Report (issue) | | and coal. fragments of fine-grained anhydrite. Calcite and sulfur were probably formed from anhydrite...Lake County - 2, 4 Coso Range deposits, Inyo County - 14 Coyote Mountain deposits, Imperial County - 13...Chance Range) mine, Inyo County - 9, 11, 15, 16, 17 Elgin mine, Colusa County - 6, 12 Full Moon deposit...deposit, Imperial County - 13 The Geysers, Sonoma County - 1, 18 Leviathan mine, Alpine County - 7, 17 Sulphur...Sulphur Bank mine, Lake County - 2, 4, 5, 6, 8, 12, 17; S 7 Supan deposits, Shasta County - 3; S 7 3. Goldman |  | | Journal (issue) | | .......................... CHALCEDONY FROlv1. BIG BEND PARK, TEXAS ......................... JOHN AUGUST...at times may assume a smooth botryoidal form; calcite (15) with its three directions of like cleavage...variety such as chalcedony. Of all these species calcite and quartz are most common. Among the famous zeolite...axinite ; datolite, prehnite, apophyllite, quartz, calcite, laumontite, chabazite, stilbite and others. According...Intrusive Triassic Diah:ise at Goose Creek, Loudown County, Virginia, PROCEEDINGS OF THE U. S. NATIONAL MusETIM |  | | Journal (article/letter/editorial) | | molybdenite, diopside, actinolite, asbestus and fibrous calcite. About 2:30 the cars began to move out to John...preceptibly formore than four years, and a sample of calcite from Texas, similarly exposed eleven years ago...mentioned a group from Utah which is now operating the big Sangdong tungsten mine. Korea has 45 centuries of...chalcedony and jasp-agate and to Clay Center for its calcite, celestite and fluorite crystals. Even the gravel...Bexar County Mineral Hobby Club At the request of the citizens of Poteet, Texas, the Bexar County Mineral |
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