 | Buchholz, P., Oberthur, T., Luders, V., Wilkinson, J. (2007) Multistage Au-As-Sb Mineralization and Crustal-Scale Fluid Evolution in the Kwekwe District, Midlands Greenstone Belt, Zimbabwe: A Combined Geochemical, Mineralogical, Stable Isotope, and Fluid Inclusion Study. Economic Geology, 102 (3) 347-378 doi:10.2113/gsecongeo.102.3.347 | Journal (article/letter/editorial) | | Fluid Evolution in the Kwekwe District, Midlands Greenstone Belt, Zimbabwe: A Combined Geochemical, Mineralogical...Kwekwe district comprises the central part of the Archean Midlands greenstone belt of Zimbabwe and represents...stage 3. Four gold deposits within the Kwekwe district have been studied. The Primrose and Globe and...DECADE, the Archean Midlands greenstone belt of Zimbabwe has been subject to several research and exploration...part of the Midlands greenstone belt, the Kwekwe district, has led to the discovery of new gold ore reserves |  | | Book | | ANCIENTS EXTRACTED s CHARACTERISTIC STONES ZIMBABWE ZIMBABWE THE REMAINS iX OF A CHIMNEY LIST OF ...possession) BUSHMEN’S DRAWING, NEAR TSUNGUESI, IN MASHONALAND (from Fairbridge’s original tracing in Dr. Peters...CAPITAL SOUTH OF . RHODESIA UMTALI THE MASHONALAND Hanp FONTESVILLA, Captain RaiLway ON THE...Pungwe down south to the Sabi River. All over this district we shall find many ruins of an ancient gold-mining...accused of been committed against Kilimanjaro district in 1891-92. Although the leaders of the Conservative |  | | Journal (article/letter/editorial) | | Gold-mining in the Transvaal, South Africa," read at the Richmond meeting of the American Institute of Mining Engineers...Old Granite on the farm Uitkyk in the Heidelberg district, where no veins are to be seen passing upward...border in Swaziland; and also in the Vredefort district of the Orange Eiver Colony, where he maintained...intrusion. A short visit last year to the Venterskroon district had left the decided impression in his mind that...cause of the over-tilting of the strata in this district. In March, 1906, Mr. H. Kynaston, Director of |  | | Report (issue) | | 48 55 55 69 81 KwaZulu-Natal Mpumalanga North West Province Northern Cape Province Northern Province...106 126 128 143 145 146 151 152 155 Swaziland Zimbabwe 157 158 Appendix 1. Southern African Stone Age...used in mining operations, or figurines (as from Zimbabwe), associated with Iron Age agropastoralist sites...Lesotho, Namibia, South Africa, Swaziland and Zimbabwe, though only the southern half of Mozambique....assemblages of South Africa, Lesotho and southwestern Zimbabwe (Volman 1984; Walker 1995). The suitability of |  | | Report (issue) | | indications of the underlying mineralization, such as quartz veining, jasperoid, outcropping gossan, or other...either the EHS or ELS category. Within the Divide district, for example, there are veins with very sparse...Barcelona district. Type M deposits are in low-grade metamorphic rocks, as at the Richmond and Berlin...major elements exploited from each deposit or district, based mainly on production records. As in any...limited number of samples for any one deposit or district. By combining the data from different deposits |  | | Journal (issue) | | frontage Road, between Speedway and St. Mary’s, on the west side of the freeway), Saturday, February 15, 7:00.......................................... 5 Rose quartz locality pegmatite ..............................America Arizona Independence Mine, White Picacho District, Arizona. Anthony et al. (2005, p. 155) mentions...known. California Himalaya pegmatite, Mesa Grande District, San Diego County, California. Within a narrow...crystals. Doc Trotter Claim (Pala View claim), Pala District, San Diego County, California. Jahns and Wright |  | | Report (issue) | | interest in the geo logy and mineral resources of Zimbabwe which followed the removal of United Nations sanctions...original Bulletin is the insertion of Table IIIA, Zimbabwe Mineral Production and Value, on page 114A. Due...east longitude, and is bounded on the south and west by the Republic of South Africa and Botswana, on...Basin and the Makarikari Depression on the north and west, and the Sabi-Limpopo Basin on the south-east. At...Below the gorge the main scarp strikes east and west. The eastern mountain range comprises two main portions |  | | Report (issue) | | It is the southernmost mine in the West Shasta copper-zinc district, which extends 8 miles northeastward...location of West Shasta copper-zinc 3. 4. 5. 6. i*LATE 1. 2. 3. 4. 5. 6. the area. 5 district 2. Photo...pyroclastic beds in Balaklala rhyolite 6 Photo of Richmond mine plant 8 Photo of gossan quarry over Old Mine...investigation of the geology of the West Shasta copperzinc district and the relationship of the mineralization...field with ABSTRACT The Iron Mountain mine in the West Shasta copper-zinc disrict is in the rugged Klamath |  | | Report (issue) | | The Eureka Mining District Nevada By THOMAS B. NOLAN GEOLOGICAL SURVEY PROFESSIONAL PAPER 406 Prepared...age _________________ _ Quartz diorite _____________________________ _ Quartz porphyry ___________________________...the Eureka mining district, Nevada. 2. Geologic sections of the Eureka mining district, Nevada. 3. Geologic...Geologic structure map of the Eureka mining district, Nevada. UI 24 25 26 26 26 26 27 27 27 27 28 28 29...northern and western parts of the Eureka mining district. 6. Mine workings in the Adams Hill area for which |  | | Report (volume) | | -_-_-___-_--____-_.-____-____-____-_--_-__----__ Quartz monzonite ------------------------------------...---_-_-_-_--_-_____--_-_._._____.___-_-_---__._.__ Quartz latite ---_------.__.__------._..-----...._._.__..._-.-.-.--.._.-.-.-....-..... 18. Photograph of Richmond Mountain thrust -.-.-.--..-.-._..... 19. Equal-area...assemblage rocks on Richmond Mountain ..__-._.-.-._._..._. 21. Photograph of West Lynn thrust ..........Cretaceous granodiorite---------------------------14. Quartz monzonite.--------------------------------15. Rhyodacite |  | | Journal (article/letter/editorial) | | Veins Associated with the Coeur d’Alene Mining District, Idaho PHILIP E. ROSENBERG† AND PETER B. LARSON...adjacent to the Coeur d’Alene mining district. Oxygen isotope ratios for quartz from the calcite-dominant and...15.5 per mil, respectively. Previous studies of quartz from the Ag-producing veins give average ratios...13.0 to 16.0 per mil and –6.9 to –2.8 per mil. Quartz-ankerite fractionations lie between 1.1 and 2.9...270° to 320°C). Quartz-calcite oxygen fractionations are scattered, as are the quartz-ankerite fractionations |  | | Report (issue) | | of maID drift and cl'Oll8-drift 600-foot level, Richmond mine.... .............. .... a.-Position o.f cupela....... .... .... ...... .......... .... .... 9.-Richmond framing...... .. .... .... .......... ..........detailed survey. of the general geology of the district, an abstract of the results of which appeared...determination of the stratigraphy and the relations of the district at large to the ore-bearing formations. I also...for the Richmond company, gave me much information in regard to the workings of the Richmond mine? furnishing |  | | Report (issue) | | Powell, United States geological survey Nevada with district Eureka of the Geology | | | title: director...Geology Arnold Hague | Washington Eureka | district [Vignette] | | Powell, director with an atlas...Geology of the Eureka Arnold Hague [Vignette] district | | | ? S Washington 4. | xvii, 419 pp...Price $1.50. Tertiary History of the Grand Canon District, with atlas, by Clarence E. Button, Capt., U....III. Geology of the Comstock Lode and the Washoe District, with atlas, by George F. Becker. 4. xv, 422pp |  | | Book | | : Campbell Island (Marshall, Trans. under See Quartz. (Marshall) : Dusky Sound See Valencianite....Wilkin River Makarora Reported from Maori Point, West Coast Dun Mountain also George Sound (Hector. Haast...(Skey, Lab. var. of Epidote) : Westport 31). district, in diorite (G.S. 1913) Parapara (Thomson, Trans...See under Quartz. Amianthus (a fine silky form of Asbestos) : A common : Arrow district (Skey, Lab... Analcite (Aualcime Andalusite ; In : : district Parapara schist, (Bull. 3) Taramakau Valley |  | | Journal (article/letter/editorial) | | Geochemistryand Metal Zonationat the Iron Mountain Mine, West ShastaDistrict, California BERNARDC. SOUTH,*AND...island-arcvolcanicrocksin the southernend of the West Shastamining district. It is the largestof the WestShasta...quartzveinsin the underlyingrock suggests that the quartz was depositedfrom fluids moving through a temperaturegradient...Introduction depositionduringthe earth'shistory.The West Shasta Cu-Zn miningdistrictin ShastaCounty, California...understanding of the generalgeologyandpetrologyof the district(KinkelandAlbers, 1951; Kinkel et al., 1956) aswell |  | | Journal (article/letter/editorial) | | Panasqueira mines, Panasqueira, Covilhã, Castelo Branco district, Portugal. was, without doubt, one of the greatest...dolomite with hematite, 13 × 7 × 5 cm, Egremont, West Cumberland iron field, North and Western Region...Panasqueira mines, Panasqueira, Covilhã, Castelo Branco district, Portugal. Downloaded by [University of Birmingham]...Samson mine, Saint Andreasberg, Saint Andreasberg district, Harz Mountains, Lower Saxony, Germany. Figure... Azurite, 33 × 17 × 11 cm, Touissit, Touissit district, Oujda-Angad Province, Oriental Region, Morocco |  | | Report (volume) | | DIRECTOR BULLETIN 483 ECONOMIC GEOLOGY OF RICHMOND, VIRGINIA, AND VICINITY BY N. H. DARTON WASHINGTON.........;........................................ West End...............................................economic geology of Richmond, Va., and vicinity.... II. A, The Lafayette plain near Richmond, Va.; B, James...above Richmond, Va....................... III. A, West slope of Shockoe Creek valley, Richmond, Va.;...Railway, Richmond, Va... IV. A, Calvert formation in cut near Eleventh and Turpin streets, Richmond, Va.; |  | | Report (issue) | | DEVELOPMENTS IN THE ASPEN DISTRICT, COLORADO By ADOLPH INTRODUCTION \ , The Aspen district of Colorado was mapped...the United States Geological Survey to visit the district, and he did so in July, 1923. The only topographic...southern part of the district, the correlation of the occurrence of ore in the Richmond Hill area with geologic...\ 1 Spurr, J. E., Geology of the Aspen mining district, Colo.: U. S. Geol. Survey Mon. 31, 1898. 1 *...The public demand for a resurvey of the Aspen district was in / essence a strong tribute to the great |  | | Report (issue) | | exploration.......... History and mineral production of district.. Previous geologic work .................. Acknowledgments......................... General geology of the district................. The Tete des Morts area, Iowa...Wisconsin-Illinois-Iowa zinc-lead mineralized district .......... 3 2. Map showing location of the Tete...ABSTRACT The Upper Mississippi Valley zinc-lead district covers 2, 500 square miles of Wisconsin, Illinois...than ten times that of lead. Rocks exposed in the district range from Early Ordovician to Middle Silurian |  | | Report (issue) | | paleogeographic relation to current landscape setting. West part of map area: Unit probably is correlative with...angular-gravel deposits mapped as talus breccia by Richmond (his unit Qb) and as relict fanglomerate by Sadler...phenocrysts of biotite, quartz, microcline-perthite, and plagioclase. Richmond (1960) and Sadler (1981)...prebatholithic metasedimentary rocks. Khqm Hornblende quartz monzonite (Cretaceous) Medium to coarse grained... porphyritic to equigranular hornblendebiotite quartz monzonite to monzogranite. Probably an early border |  | | Report (volume) | | .............................................. Quartz veins............................................discussion Continued. Structural features Continued. Quartz veins............................................granite of the Richmond-Petersburg area.. Dark blue-gray biotite granite of the Richmond-Fredericksburg............................... 79 Gneiss of the Richmond-Fredericksburg area.................. 80 Gneiss................. 82 Structural relations in the Richmond-Fredericksburg area .......... '82 General statement |  | | Journal (article/letter/editorial) | | ~40 and 36 Ma. Miocene rhyolite lavas erupted just west of and across the southern part of the trend at...mineralization, and the structural history of the district and information on the depths at which the deposits...earliest episode, deep-water marine rocks deposited west of the plate edge were thrust over autochthonous...extensive Eocene magmatism that swept southward as east-west belts from southern British Columbia beginning at...magmatism was contemporaneous with subduction along the west coast of North America and broadly with the onset |  | | Report (issue) | | science for a changing world Relations Between The Richmond Mountain Thrust> And The Crescent Valley-Independence...Bob's Flat quadrangle area Figure 3. Relation of Richmond Mountain area to the CVIL 3 4 12 List of Tables...from the Richmond Mountain area. 11 List of Plates Plate 1. Geologic map of the Richmond Mountain...County, Nevada in back RELATIONS BETWEEN THE RICHMOND MOUNTAIN THRUST, AND THE CRESCENT VALLEY-INDEPENDENCE...COUNTY, NEVADA By Stephen G. Peters Abstract The Richmond Mountain thrust is in the southern part of the |  | | Book | | ceived ssmam sits)s Gold-bearing rocks, other than quartz, also auriferous arsenopyrite and stibnite .. 2...a omnes ype ess odoe g. From other claims in the West Kootanie SUE TAMES Grae c SPE eee a: 8 eam Raney...es eicresea ame,sey vo he RN ‘eae 139 162 Quartz, quartz sand, and sandstone, suitable for glassjase...) Native Arsenic.—Seven miles up Watson Creek, west side of the Fraser River, twenty-five miles above...Superior, district of Thunder Bay, O. (1237.) <= Rabbit Mountain mine, township of Paipoonge, district of Thunder |  | | Journal (article/letter/editorial) | | some emery ores. 162, 183 Brochantite. (Palache,Richmond) 463 Brunckite. (Herzenberg) 350 Buerger,M. J...Calcite,Fe-Mn. (Yosimura). Caledonite. (Palache, Richmond) 441 Canyon Diablo iron, identification of diamond...carbonateofNaandCa .. .. . 514 tr'airbairn, H. W. Correlation of quartz deformation with its crystalstructure..,..., '...(Foley, West)..... 398 Fluorite, twinned octahedra.(Switzer). .193,805 Foley, F. C. and West. P. W. Qualitative...M. H. Occurrence of riebeckite in Michipicoten district, Ontario 382 F r o n d e lC , .. ... 185 Fuller |
|
