 | | Report (issue) | | Kalloysite is a white clay mineral very similar to kaolinite in chemical composition, physical properties,...report consist of a mixture of halloysite and kaolinite which were formed by the alteration of feldspar...the weathering of soda-lime feldspar, and that kaolinite results from the weathering of potash feldspar...feldspar, thus accounting for the intimately mixed kaolinite and halloysite found in these deposits. The halloysite...Clarence S. Ross has suggested that in some cases kaolinite and halloysite may have been formed simultaneously |  | | Report (issue) | | ~dolph CluPTBR VIII KAOLINS OF THE PIEDMONT REGION _____________________ 256-260 CHAPTER IX KAOLINS...KAOLINS AND FIRE CLAYS OF THE PALEOZOIC REGION m• NORTHWEST GEORGIA -------------------- _____________ 261-285...ILLUSTRATIONS OPPOSITE PAGE XII Fig. 1-Clay Bed, Railroad Cut, Property of J. R. Van Buren, Griswoldville, Jones...Griswoldville ------------------------ 176 Fig. !-Railroad Cut at Carr's Station, Hancock County _ ---------------------------...------ 312 Cretaceous Sand and Clay, Railroad Cut Two Miles North of Byron, Houston County______________ |  | | Journal (article/letter/editorial) | | Brazil are imperfectlyknown geologically,but two main areasare recognized:1. The northern Brazil area...Rio das Mortes runs the Rede Miniera de Viac•to Railway (R.M.V.), a venerable narrow-gauge (60 cm) ra•i[ad...unweathered pegmatitehas been openedin the railroad cut. The nearest station to the Volta Grande mine is...Rio das Mortes from a pointaboveMinas BraziI. Main cut is in decomposed PegrnatiteA which dipsleft (southeastward)...kaolinized pegmatite.Feldsparis entirelyalteredto kaolinite. Spodumene is completelydestroyedand is convertedto |  | | Report (issue) | | Hiriart Mountain 23 6. Section through west tunnel, North Star mine 7. 8. 9. 10. 11. 12. 13. 14... 49 49 50 52 55 55 56 57 59 48-49 Spodumene, cut-stones A, Photo of fine-grained lepidolite. B, very...49 49 48-49 A, Tourmaline, cut stones. B, Tourmaline, bi-colored cut stones 10. 12. Fig. spodumene...geologist, California Division of Mines. map of main cut. Xaylor mine Photo of fracture-controlled replacement...Plan of main workings, Katerina mine Section through adit, 101 Molino mine 35. Geologic map of main workings |  | | Journal (article/letter/editorial) | | . Beyerite. Limonite and manganeseoxide. . . Kaolinite. Calcite and chalcedony. Descriptions of selected...were noted in the Van Buskirk deposit. Calcite, kaolinite, limonite, and manganeseoxide are the chief products...Beyerite Bismutite Limonite Manganese oxide Calcite Kaolinite Chalcedony oF MTNDRALs Quartz Quartz occurs...Buskirk deposit. Microcline is altered to sericite, kaolinite, or calcite. Replacement commonly proceeds outward... quartz, beryl, apatite, and tourmaline, and is cut by garnet vein- E. WM. EEINRICH lets. Thin fi |  | | Report (chapter) | | gneisses of the Mona complex These deposits are cut by a number of intrusions consisting mainly of dolerite...least moved. A number of dip faults (cross-courses) cut the syncline and some have lateral movement. Probably...the sediments and the 'fel- 623 site'. Later the main sulphide mineralisation occurred, the general sequence...complex history before, throughout and after the main sulphide mineralisation. Secon- TABLE 1 Reference...ILLITE-kaolinite-chlorite 3.14 4.18 14.6 365 +_4 MN 297 SH 4493 9071 Al-ll7' ILLITE-KAOLINITE - chlorite |  | | Report (issue) | | and zinc are of primary importance, while in this region the igneous dikes and the fluorite are the primary...resulting from the abundant faulting to which the region has been subjected. Of these conditions the principal...superficial inequalities produced by the faulting of the region may never have been entirely obliterated, yet it...limestones, iron ores, and other materials from the region, are scattered through the four reports of Owen's...presence of such igneous rocks in the Derbyshire lead region is the only important traceable difference in the |  | | Book (volume) | | DEPOSITS. 341 Besides the cobalt-nickel veins, the region also contains veins of carbonate spars free from...district of Schneeberg, in Saxony, a mountainous region 1,300 to 1,600 feet (400 to 500 m.) above the sea...communications by H. Trb'ger, are divided into two main groups, an older and a younger. The older veins...the pitchblende. ores extend for 850 foot cross-cut, although the vein itself had, above the level...Haileybury, in Ontario, Canada, in 1903, while a railway cutting was being excavated. 2 22. VEINS OF HYDROSILICATE |  | | Report (issue) | | . . . . . . . . . . . . . . . . . . . . .. Road-cut (Renfrew County Road 4) . . . . . . . . . . . . ...Bryson road-cut · . ....... . ..... . .. " . . . . . . . . . . . . . . . . .. . . . . . . . Road-cut on Campbells... . . . . . . . . . . . . . . . . . . . . . Road-cut, Campbells Bay-Otter Lake Road. . . . . . . . . ...these deposits are accessible only by boat. The region north of the Ottawa River was formerly mined for...crystalline limestone, Ottawa River at Chenaux Dam. The main road logs parallel the Ottawa River in Ontario and |  | | Report (volume) | | .............:........ 60 Chesapeake and Ohio Railway district............................. 60 Extent...resources by districts Continued. Chesapeake and Ohio Railway district Continued. Thecoals .............'........... Little Sandy Valley or Eastern Kentucky Railway district.......... Extent .......................Coalton coal (Kentucky No. 7) in Chesapeake and Ohio Railway district.........................................is still being mined. The clay industry in this region is small at present, but should have an important |  | | Report (issue) | | Pendant: almandine garnet cabochon set in silver. Cut and set by Jim Robertson, New Liskeard, Ontario....muscovite sheet from the largest crystal he found in the main dyke, Purdy mine, 1942. Photograph by N.B. Davis...these deposits are accessible only by boat. The region north of the Ottawa River between Gatineau (Hull)...occurrences are accessible by automobile from the main highways and from secondary roads branching from...acknowledged. 1 COLLECTING ALONG THE ROUTE The main collecting route is from Ottawa to North Bay, Ontario |  | | Report (issue) | | Topographic maps are available for all of the Black Hills region and may be purchased from the United States Geological...Lepidolite Biotite Zinnwaldite Phlogopite Glauconite Kaolinite Talc Muscovite (Sericite) (Fuchsite) Montmorillonite...in length from the wall on the north side of the tunnel entrance to the Greene pegmatite three miles east-northeast...the most abundant amphibole of the Black Hills region. It is an especially important constituent of the...brownish red when viewed from the ends, have been cut from transparent andalusite found onefourth mile |  | | Journal (volume) | | and in the northern part of the state a large tunnel kiln was placed "on stream" for the production...chemical plant. Prepared a report on geology of Poe Tunnel for Department of Water Resources. Suggested areas...mining claims. Correlated geology of Poe Tunnel with tunnel-driving rates. Advised gold miner on sampling...Shoshone-Tecopa quadrangles, in the southern Death Valley region, have deposits of lead, zinc, silver, gold, talc...unmapped areas of the Klamath Mountains. This is a region of rich mineral potential, about which there is |  | Wrucke, C.T., Marsh, S.P., Raines, G.L., Werschky, R.S., Blakely, R.J., Hoover, D.B., McHugh, E.L., Rumsey, Clayton M., Gaps, R.S., Causey, J.D. (1984) Mineral resources and mineral resource potential of the Saline Valley and Lower Saline Wilderness Study Areas, Inyo County, California. Open-File Report Vol. 1984 (84-560) US Geological Survey doi:10.3133/ofr84560 | Report (issue) | | descriptions and production data for mines in the region around the study areas are included in summary...is the lowest place in the northern Death Valley region. The general topographic trend of the mountains...from this trend. Mining history Prospecting in the region of the Saline Valley and Lower Saline Wilderness...generalized geologic map of the Inyo Mountains region, which covers both study areas. Upper Proterozoic...(1970) in reports and maps of the Inyo Mountain region, the Cambrian rocks in the Saline Valley area are |  | | Report (issue) | | ot thc1r couhe; deep V-sb,;ped gulches h,tVe been cut m the F.c,hrst ..... and wall can)Oll" tn the C....vert1cal walb rNng ,hee1 trom 2UU to ±110 teet has been cut Through th" can)on the engmee1:, ot the Black HJ...Burhngton Rarlroad The many hr,mcbe.., ot the railway f..y-,tem~ afford excellent ~<..,tron~ 16...gullies and sparR to maintain th~ir grade, and these railway branches and loops are now so numerou~ in the mining...artifimal ·'honeycomb" nllllerground and the clean railway cuts abo\·e, much is now exposed to the geol0gist |  | | Report (issue) | | and Tertiary rocks of the San Diego coastal plain region Cretaceous system Tertiary system _ Paleocene rocks...District summaries Julian district Escondido region Mesa Grande Dulzura 121 121 district (Rice)...Pine Valley El Cajon district Laguna Mountains region Boulder Creek (Mineral Hill) Deer Park district...260 Quartzite Escondido Quarries, Inc. (Pacific Cut Stone and Granite Co.) National Quarries (Johnson...Figure 2. Figure 3. Geologic sketch of road cut shown in photo 11Graph comparing yearly value of |  | | Book | | Contents Therapeutic Uses Beryl, of Emerald and Germany, Eyes, 76 77 Spain, Childbirth, and Fertil78...Inspecting Algeria, 328 Rough, Inclusions in Cut Gems, Chatoyant Beryls, Angola, 361 329 Antarctica...West Africa 445 Ghana, Inner Somali 443 Germany, Terms, 616 491 General 500 and Locality Index...those years by Dr. a of persons and San by the main Diego library. The in many the text and illustrations...Additionally, contributed F. to the I wish Germany; WI; Allen British following who in large work: |  | | Report (Issue volume) | | good places to search for minerals, also road and railway cuts; rock exposures along cliffs and along the...Pacific railway and can be reached by way of the lake, or by a disused road leading from the railway tracks...iron formations which occur extensively in this region. Red jasper as thin layers with a hematite-magnetite...formation which is exposed along the west shore of the main peninsula projecting into the northern part of Perch...more or less parallel to the Canadian National railway. Notable occurrences are in the vicinity of Shabaqua |  | | Book (volume) | | and discusses those species which are primarily cut as gemological curiosities with little or no regular...Alaska, provided data on gemstones found in that region; the Southern Onyx and Marble Company of San Diego...well-known Texas agate localities of the Alpine Region were described in detail by J. Frank Woodward...photographs illustrating scenes and gemstones of this region were generously provided by George Ashley and Roy...Gulch Mine . Rock Creek, Montana, sapphire mine . Cut and rough aquamarines . Drawing of beryl crystal |  | | Book (edition) | | of Arkansas crystal 3. Star of Arkansas marquise cut gem 4. Mounce diamond crystal 5. Gibson's Ruby mine...Spessanine garnet, rough and cut Chalcedony replacements of coral, Florida Rough and cut apatite, Durango, Mexico...specimen: 11/2 x l inch (3 .8 x 2.5 cm). Bottom: cut gems from Rutherford Mine No. 2, Amelia, Virginia...Phoenix. 15. Stalacrites of malachite-azurite, cut and polished, from Arizona. Diameter of small specimen:...intrigue exploration geologists who work in that region. Among recent explorations is that of D. D. Brown |  | | Book | | mine design 231 Discussion on the mechanism of cut pulling in underground mines S.PSingh 233 A field...principles of mining machines with the combined main parts 601 Jianshe Chai, Xianping Xie & Guangxu...approach and the future of mining in the Urals region of Russia TAS Z.Georgopoulou, K. Fytas, H.Soto...underground water filtration in the drainage shaft region of Kremikovtsi open-pit mine 893 Rock mass as...Bergbauwissenschaften, Germany XIX Mr Werner Kowalski, Editor “Gliickauf’, Essen, Germany Dr Uta Gerlach-Laxner |  | | Book | | Introduction 20 Giant uncut crystals 20 Large and important cut stones 22 Large pink and red topaz 26 Large imperial...Czechoslovakia 173 East Africa 174 Federal Republic of Germany (including the former German Democratic Republic)...not diagnostic, and are generally lacking in most cut stones. Inclusions are of most interest for implications...Preto, Kamenka river, Schneckenstein, Saxony, Germany. xiv Profile Colourless/blue - Minas Gerais...Numerous bronze drums are found throughout the region from Vietnam through Malaya, Sumatra and Java, |  | | Report (issue) | | 12E 09 32-18-234 111-07-1bw P8 CUV MU AGV OMEGA TUNNEL PdV PImA ZN AUV 185 15E 24 31-51-224 11U-4b-lOw...CU MAIN COMMOD A AU OCCURRENCES) OR POTENTIAL PRODUCTISI: Nt AG PAGE 0002 POTENTIAL A MO MAIN ORE...SCHALLER, W.T., 1936, MINERAL RESOURCES OF THE REGION AROUND BOULDER DAM: U.S. GEOL. SURVEY BULL. B71...OF K-A AGES OF TERTIARY ROCKS FROM THE LAKE MEAD REGION, NEVADA-ARIZONA: GEOL. SOC. AMERICA BULL., V. 83...PRODUCER(PAST OR PRESENT): MAJOR PRODUCTS.. WA AU AG CU PB MAIN COMMOD A MINOR COMmOD A MO BI OCCURRENCE(S) OR POTENTIAL |  | | Journal (article/letter/editorial) | | U tah in 1984. BHPB presently has open cut mines at four main centres – Newman, Jimblebar, Marillana...first significant geological reconnaissance of the region reported deposits in the Robe R iver area † near...recognised and used an ‘indicator band’† below the main iron ore occurrences (the Brockman Iron Formation)...and was virtually wilderness in today’s terms. The main North West Coastal Highway and Great Northern Highway...goethitic ore, it was originally logged as shale. † The main ore horizon was given the name Mount Newman Member |  | | Report (issue) | | quartz, and muscovite. Biotite and garnet are the main accessory minerals, but a wide variety of other...pounds each. Total production of sheet mica for the region is unknown. Production in recent years has been...in its topographic sense is applied only to the main divide which lies near the southeastern edge of...Bryson City where feldspar-rich mica-poor pegmatites cut metasedimentary rocks of the Ocoee Series near the...tuffs (Hadley and Mountains (Keith, 1905b), in the region northwest of Goldsmith, 1963, p. B12); the more |
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