 | | Journal (article/letter/editorial) | | Texas mineral locality INDEX Whereas Texas is well known for its vastness, cattle industry, and oil...I T S T O P O G R A P H Y A N D G E O L O G Y , Texas, the second largest state, has produced relatively...famous localities. A s this article will show, Texas has had—or currently has—nu merous mineral occurrences...produce good specimens; yet when specimens from Texas are sought in collections and dealers' stocks, few...some basic facts that help explain the situation. Texas has very little federal land in its mineralized |  | | Report (volume) | | GEOLOGY AND ORE DEPOSITS OF THE SHAFTER MINING DISTRICT PRESIDIO COUNTY, TEXAS BY CLYDE P. ROSS Contributions..._._ ___ _ _ __ -__ Location and extent of the district-..__._.._.__________.___._____ Scope of the report..._____-_-___-_-_--_--_-__--_-----___---_-____ History of the district..-.___ ___ 49 Sedimentary rocks.__ _ - _____...__ 56 Beds at the Presidio mine__________ _ _ __ ______ Beds near the Perry mine-.... _.._._________...___-_-_-_-___.__ 60 Beds in the western part of the district.-.__----_--____--__ 60 Age_-___.----------- |  | | Report (issue) | | Resource Areas of the Basin and Range Province of Texas Compiled by Christopher D. Henry and Jonathan G...Economic Geology, The University of Texas at Austin, Austin, Texas, and Michelle Frodey Hutchins, U.S...Province which include areas of past or present mining and prospecting activity as well as areas of potential...map are not legal Mining District boundaries and may include more than one district (see table 1) as well...deposits within the Basin and Range Province in West Texas occur largely as vein and replacement deposits containing |  | | Journal (issue) | | and M.S. in geology from New Mexico Institute of Mining and Technology, also earned minors in history and...................... 3 The Shafter Silver District, Presidio County , Texas ......................................... 7 Minerals: Shafter Silver District, Presidio County, Texas .............................his head really screwed on right. He has his own mine in the Lake Geor ge area of Colorado, near Florissant...area is noted for the beautiful amazonite, smoky quartz, fluorite, goethite, and other minerals. His name |  | | Journal (article/letter/editorial) | | northwestbasementprovinceAg-Pb-Zndeposits at Shafter,Texas,havelow Pb isotoperatiosderivedfromassociated... PbISOTOPESOF OREDEPOSITS,TEXAS& CHIHUAHUA,MEXICO 935 I New Mexico !• •,-• _• Texas E! Paso q- 32ø 103...andprospects ThisCumming 50 km study etal, 1979 Davis Mountains Sampling Locations ß• ?.... . •. •. •'• x... / LaOlivina FIG.1. Mapof partof Trans-Pecos Texas,Chihuahua, andCoahuila showlug thelocations of deposits...= Pecos,PR = Puerto Rico, PS = Purple Sage,S = Shafter,SA = SanAntonio,SE = SantaEulalia,SC = SanCarlos |  | | Journal (article/letter/editorial) | | high-silicarhyolites from northern Mexico and west Texas contrast with that of the Bishop Tuff of California...differentiation (peralkaline series of the Chinati Mountains, Texas) to one where all except Ce decrease with...light REE (e.g., me~Iuminous series of the Chinati Mountains and the Bishop Tuff). in series that lack...differentiation (e.g., peralkaline series of the Chinati Mountains). INTRODUCTION WHOLE-ROCK/GROUNDMASSrelations...high-silica rhyolites from northern Mexico and west Texas. The samples include a peraluminous lava from the |  | | Report (chapter) | | in Trans-Pecos Texas Daniel S. Barker S U M M A R Y : Alkaline magmatism in far W Texas extended from...spreading. Peralkaline phonolites and rhyolites in Texas and calc-alkaline rhyolites in Mexico were erupted...edge of the Basin and Range structural province in Texas, is a natural boundary, because no Cenozoic igneous...some still await publication. The University of Texas Bureau of Economic Geology has completed a series...the province as part of the Geologic Atlas o f Texas (Barnes 1968, 1979a, b, 1982). Wilson (1971) summarized |  | | 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 ................................................................... Quartz .................................................Composition, hardness, and specific gravity of some Texas minerals Pace 25 26 39 40 43 43 43 44 45 46 47 |  | | Journal (article/letter/editorial) | | Tertiary age of the southern Quitman Mountains in Hudspeth County, Texas, contain some rather unusual amygdules... INrrooucrror.I Locolion oJ area The Quitman Mountains form one of the northwest-trending ranges of trans-PecosTexas...ANDESITE FROM TEXAS 1059 Fro. 2. Geology of the southern tip of the Quitman Mountains, adapted from...alluvium that laps onto the eastern flank of the mountains from Quitman Arroyo. Aiuycrurns rN ANDESTTE General...qvartz massesin the southern part of the Quitman Mountains. The locality is referred to as the ,,geoclebed |  | | Journal (article/letter/editorial) | | abundantly in Uhi· BO}'I .n ,\,)ERI"TG THE RIO GRANDE IN TEXAS huahua, is of a deep purple color, which makes it... . HAVING r:cently spent some tIme tn Southern Texas and A gave, Ha branth us, and Dasylirion, and the...�o hope that a few words of description of the mountains; the ' plants not crowded, but separated by I...from the 'l'he easteI'D and central portIOns of Texas are so well fifteen feet with trunks from six to...earth to the sun consists of theater of active mining operations �or many years and �he . roasted, is |  | | Journal (article/letter/editorial) | | HayesandEinaudi,1986). Clark and Scottand Kidson,1977). The mine area lies approxde la Fuente(1978) recognizeda northwest-trending...Chihuahuatroughalongdebed sequences in Trans-Pecos Texas(Price, 1982, collementsin underlying Jurassicevaporites...thicknessof at least 1,200 m. The basalCretaceous in the mine area are consistent with this east-northeast La...SCIENTIFIC COMMUNICATIONS NEW MEXICO i "•,•I Paso TEXAS •5•Hazel Plata Verde N et al., 1986). The igneousrocksformed...westcoastof Mexico.The mainphase qfigneousactivityin Texas,between38 and32 m.y., involved widely scattered |  | | Report (issue) | | BEG 5.5 A5 1983 - ~tennialof The University of Texas at Austin, 1883-1983 ANNUAL REPORT 11 Bureau...Fisher, Director The University of Texas at Austin Austin, Texas 78712 The Bureau of Economic Geology...in 1909 as the successor to the Texas Geological Survey and the Texas Mineral Survey, i s a research entity...entity of The University of Texas at Austin. It also functions as the State Geological Survey, a quasi-State...quasi-State agency, and the Bureau Director represents Texas in the Association of American State Geologists |  | | Report (issue) | | 00unse Geology of the Solitario, Trans-Pecos Texas Charles E. Corry WOCE Hydrographic Programme Office...Dallas, Texas 75222 Fred W. McDowell Department of Geological Sciences University of Texas at Austin...Austin Austin, Texas 78712 Kenneth A. Phillips P.O. Box 54 Arvada, Colorado 80001 SPECIAL PAPER a ss a ...ion Data Geology of the Solitario, Trans-Pecos Texas / Charles E. Corry. p. cm.—(Special paper ; 250)...(Geology)—Texas—Presidio County. 2. Domes (Geology)-Texas—Brewster County. 3. Geology—Texas—Presidio County |  | | Report (issue) | | OF SEASCAPE IN GLASS MOUNTAIN AREA, BREWSTER COUNTY, TEXAS, DURING MIDDLE PART (LEONARD) OF PERMIAN TIME...consistently in much of the western interior. In west Texas and southeastern New Mexico, however, such strata...interval C or in both intervals C and D in west Texas. Assignment of rocks to the Permian intervals adopted...Gries, South Dakota School of Mines; P. T. Flawn, Texas Bureau of Economic Geology; P. H. Price, Thomas...University of Oklahoma; R. K. DeFord, University of Texas; D. W. Boyd, University of Wyoming; C. O. Dunbar |  | | Report (issue) | | FOREWORD to the Texas ceological survey and The Bureau of Economic ceology, established in 1909 as the...the successor Texas at Austin. lt also functions as the State the Texas Mineral Suruey, is a reseJrch...reseJrch entity of The University of member of the Texas Energy and Natural is a Ceological Survey, u qr'uri-r...agency. The Bureau Director The Director represents Texas in the committees. interagency Resources Advisory...in energy and basic of number large resources of Texas. tn uaaition, it conducis a geologic mapping, and |  | | Report (volume) | | mineralization in the Beaver-Tarryall area, Park County, Colo., a reconnaissance report, by Quentin D....Geology and ore deposits of the Shafter mining district, Presidio County, Tex., by Clyde P. Ross _______...on concentration tests on manganese from Perry County, by H. S. Rankin______ 1 45 127 223 ILLUSTRATIONS...PLATE 1. Geologic map of Beaver-Tarryall area, Park County, Colo__ In pocket 2. Geologic sections of Beaver-Tarryall...Beaver-Tarryall area_______________ In pocket 5. Index map of mining properties in Beaver-Tarryall area___ 36 6. Reconnaissance |  | | Report (issue) | | Saline Ground Water in the Basins. of Westernmost Texas 1 \1 U.S. GEOLOGICAL SURVEY Open-File Report 78-663... N. M. 87125 Prepared in cooperation with the Texas Department of Water Resources Availability of...Saline Ground Water in the Basins of Westernmost Texas By Joseph S. Gates, Donald E. White, W. D. Stanley...cooperation with the Texas Department of Water Resources October 1978 Reproduced by the Texas Department of...Limestone between the Beacon Hill area and the Apache Mountains------------------------Lobo Flat and adjacent |  | | Book (volume) | | Fourche and Cheyenne rivers. These pine covered mountains, higher than the Alleghenies, culminate in Harney...instance, a single Spodumene crystal from the Etta Mine near Keystone on the east side of the Mount Rushmore...from 18’ to 27’ long. In addition, gem Garnets, Quartz crystals, Topaz and Tourmaline add to the fascination...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 |  | | Journal (article/letter/editorial) | | AND PETROLOGY OF THE TASCOTAL MESA QUADRANGLE, TEXAS By RALPH L. ERICKSON ABSTRACT The Tertiary Buck...the Tascotal Mesa quadrangle in Presidio and Brewster counties, Texas. The regional dip in the northern... 1354 R. L. ERICKSON—TASCOTAL MESA QUADRANGLE, TEXAS Basalt Volcanic breccia Trachyandesite porphyry...Figure Page 1. Index map of part of Trans-Pecos Texas.. 1355 2. Diagrammatic cross section 1372 INTRODUCTION...is in southeastern Presidio and southwestern Brewster counties, Trans-Pecos Texas (Fig. 1). Bandera Mesa |  | | Journal (article/letter/editorial) | | rocks of the Eastern Trans-Pecos Magmatic Province, Texas Dennis O. Nelson, Kerri L. Nelson, Keith D. Reeves...Geology, Sul Ross State University, Alpine, TX 79832, USA Abstract. The Trans-Pecos Magmatic Province (TPMP)...of the TPMP, the Big Bend region and the Davis Mountains, have been analyzed for major and trace element...to trachyte; stage II, trachyte to quartz trachyte; stage II1, quartz trachyte to rhyolite/comendite; and...Inc., 815N. Wooten, Colorado Springs, CO 80915, USA Offprint requests to: D.O. Nelson * Present address: |  | | 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 |  | WHITE, J, BENKER, S, REN, M, URBANCZYK, K, CORRICK, D (2006) Petrogenesis and tectonic setting of the peralkaline Pine Canyon caldera, Trans-Pecos Texas, USA. Lithos, 91 (1) 74-94 doi:10.1016/j.lithos.2006.03.015 | Journal (article/letter/editorial) | | peralkaline Pine Canyon caldera, Trans-Pecos Texas, USA John Charles White a,⁎, S. Christian Benker a...40475, USA Department of Geological Sciences, University of Texas at El Paso, El Paso, TX 79968, USA Department...Alpine, TX 79832, USA d National Park Service, Big Bend National Park, TX 79834, USA Received 4 July 2005;...diameter) ash-flow caldera that erupted peralkaline quartz trachyte, rhyolite, and high-silica rhyolite lavas...caldera is located in Big Bend National Park, Texas, USA, in the southern part of the Trans-Pecos Magmatic |  | | Journal (article/letter/editorial) | | Universityof Texas at Austin, Austin, TX 78712, USA bBureau of Economic Geology, Universityof Texas at Austin...78713-7508, USA CNevadaBureau of Mines and Geology, UniversityofNevada-Reno, Reno, NV89557-0088, USA (Received...locations in the Trans-Pecos Magrnatic Province, Texas, U.S.A., demonstrate this hydrothermal Zr mobility...Peralkaline rhyolites and trachytes in the Christmas Mountains contain as much as 2100 ppm Zr, mostly in aegirine...concentrations in fluorspar are ~ 200 ppm. Metaluminous quartz monzonite from the Infiernito caldera contains |  | | Journal (article/letter/editorial) | | abundantly in Uhi· BO}'I \,)ERI"TG .n ,THE RIO GRANDE IN TEXAS huahua, is of a deep purple color, which makes it... . HAVING r:cently spent some tIme tn Southern Texas and Agave, Habranthus , and Dasylirion, and the...�o hope that a few words of description of the mountains; the ' plants not crowded, but separated by I...vnccata. 'l'he easteI'D and central portIOns of Texas are so well fifteen feet with trunks from six to...saccharine matter raw or better theater of active mining operations �or many years and �he . roasted, is |
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