 | | Book | | the pitchblende. not been for several^years the mine is not worked at present and has distribution in...Boulder County. City Gold — Allophanite. —Franklin Mine, in Gilson Gulch Fowler Branch, Sugar- Loaf Altaite...following result. The specimen was from the Red Clbud Mine: (1) Qnnrtz Gold Silver Copper Lead Zinc Iron...but differ in composition. See Wheelcoal. stone Mine, KKITE.) AMETHYST.—See Quartz. AMIANTHITE. —...Mountain. Freeland Mine, on Trail Creek. In crystals at the HorseANGLBS1TB shoe lead mine, in South Park |  | | Journal (article/letter/editorial) | | siliciclastic marine sediment and dunite, resulting in a phlogopite-rich pyroxenite metasomatic reaction layer, and...and (2) the partial melting of the phlogopite-rich pyroxenite synthesized in the first experiment to...lower Cretaceous coal outcrop in Ariño (Teruel, NE Spain) were investigated by X-ray diffraction and optical...Condamine, P.; Médard, E. Experimental melting of phlogopite-bearing mantle at 1 GPa: Implications for potassic...Médard, E.; Devidal, J.-L. Experimental melting of phlogopite-peridotite in the garnet stability field. Contrib |  | | Journal (issue) | | in the well known Pitch Lake, on the island of Trinidad, and occurs at other localities in France, Switzerland...with a large percentage of clay. At Los Oonchas Mine, Santa Barbara County, California, there is an immense...seashore, twenty-five miles west of the Las Conchas Mine, is a very large deposit of rock asphalt. The material...In the United States, particularly in the East, Trinidad asphalt is the material most in favor. For a long...when prepared and laid with care. As mined, the Trinidad Lake pitch is a dark-brown substance, which is |  | | Report (issue) | | Examples include: Muscovite or 'white mica' Phlogopite Biotite or 'black mica' Lepidolite KA I z(Si3A...forms the principal subject of this dossier. Phlogopite is of lesser importance although it can be substituted...may be derived frorn dressing operations at the mine or from trimming and fabricating at the factory...detrital mineral in some sedi mentary rocks. Phlogopite is a rare mica and is found principally in certain...respects muscovite is superior to phlogopite and biotite but phlogopite is substituted where thermal stability |  | | Journal (issue) | | Belgium, France, Germany, Holland, Italy, Portugal, Spain, Sweden, Switzerland, U.S.A. ASSAYERS BANK OF ... ARTICLES The General and Economic Geology of Trinidad, B.W.I. By H. H. Suter, Ph.D. (Part 3-General...Generaland Econo1nicGeologyof Trinidad, B. W.I. Economic Geological Map of Trinidad • • • . facing p. •...Examples of Electric (Miocene) Sands Logs of Trinidad • . • Tertiary • • Fig. 13 Section through...Digity Sector • Fig. 14 Variation Diagram of Trinidad Crude Oils • Fig. 15 46 • San Fernando Hill |  | | Book | | Eulalia District....... El Potosi Mine............. San Antonio Mine....... Cusihuiriachic District................................. Minerals of Ojuela Mine .... . Velardena District.........................Guanajuato District ..................... El Sanlin Mine......................... San Miguel de Allende ...assistant superintendent, both of Fresnillo’s Naica mine, helped with data and review. Dr. Edwin Roedder...made possible our visit to the Esperanza fluorite mine. Engineer Macario Munoz, Comision de Fomento Minero |  | | Journal (issue) | | Belgium, France, Germany, Holland, Italy, Portugal, Spain, Sweden, Switzerland, U.S.A. ASSAYERS BANK to...PAGE ARTICLE The General and Economic Geology of Trinidad, B.W.I. By H. H. Suter, Ph.D. (Part 2-Petrology...Ilus !rations The Generaland EconomicGeologyof Trinidad, B. W.I. (Part 2) Plate II Panoramic View of...Field • '' Fig. 8 Regional Geologic Map of Trinidad and Orinoco Basin '' 298 Fig. 9 Tecto-Facies.... - '' 299 Fig. 10 Palaeo-Geologic Map of Trinidad depicting conditions in Early Miocene times . |  | | Journal (article/letter/editorial) | | blackish muscovite, brown limonite, and bronzy phlogopite. Creek sand from. Clayton, N . Mex. Glen E....black magnetite. Beach sand from Maracas Beach, Trinidad "My husband and I recently returned from a delightful...filled a match box with sand from Maracas Beach, Trinidad These are in a small parcel dispatched in the...Maracas Beach is on the north coast of Trinidad on Maracas Bay. Trinidad in an island off the North coast of |  | | Journal (issue) | | ···················· SOME GEOLOGlCAL NOTES ON TRINIDAD, COLO. By Earl Floyd 2 ~ CASSITERlTE OF THE...ASSOCIATION Whole No. 126 SOME GEOLOGICAL NOTES ON TRINIDAD, COLORADO By EARL FLOYD l 1t, ·e- ge or ... ·o· ~ .ry 1se p· oy 1m :bed ns Trinidad, in the southwestern part of Las Animas County, is the coal...side canyons which flow into the main canyons. Each mine has a camp with st~res, garages, and houses for...Range (the blood of Christ) , 60 miles west of Trinidad, and flows through the city. The peaks of the |  | | Catalog/List | | mineral, "At were of large, prisms, of this mine have been obtained, more Note. - Galena offer...in the specimens Dundasite, bunches samples Mine, of occurs lode. beautiful white large more...originally Cornish mining ceeding by colour, Mine fractures of great the mineral often Mount ...extremely some rarely Anglesite. Embolite, back Mine. with minute of small of capping gossan the...forward it in Dr. it struck a 1735 Juan Spain. to Tucson, streets of found near difficulty |  | | Journal (article/letter/editorial) | | Phoenix. Arizona 85033. Fluorescent diopside & phlogopite from Newcomb, New York and thumbnail Herkimer...some flint. Robert Pigott, Driftwood Lodge Motel, Trinidad, Calif. 95570. ROCKS AND MINERALS |  | | Journal (issue) | | ARTICLES I The Geology of the Toco District, Trinidad, West Indies. Part I : Introduction, Stratigraphy... Illustrations The Geologyof the Toco District, Trinidad, West Indies Plate I Plate II Fig. Fig. I 2...Generalised geological map of eastern Venezuela and Trinidad showing the location of the Toco district . page...eastern Venezuela and Trinidad . • • Geological Map of the Toco District, Trinidad, W.I .. • Fig. 5 ''... 1. • • THE GEOLOGY OF THE TOGO DISTRICT, TRINIDAD, WEST INDIES By K. w. BARR, Ph.D., F.G.S. CONTENTS |  | | Journal (article/letter/editorial) | | Fe2+-Al-celadonite, Mg-Al-celadonite, annite, phlogopite, pyrophyllite and paragonite) ionic solid-solution...Muscovite Mg-Al-celadonite Fe2+-Al-celadonite Phlogopite Pyrophyllite Paragonite Chlorite solid solution...Grossular Spessartine Biotite solid solution Annite Phlogopite Chloritoid solid solution Fe2+-chloritoid Mg-chloritoid...Al2O10(OH)2) and trioctaedral K micas, such as phlogopite and annite (Phl Si3AlFe3KO10(OH)2; Ann Si3AlFe3KO10(OH)2)...Mg-Al-celadonite Fe2+-Al-celadonite Pyrophyllite Annite Phlogopite a b SiAl SiAl SiSi SiSi SiSi SiAl SiAl M2(2) |  | | Book | | produced specimens from such places as the La Fé Mine in the state of Chiapas and Santa Rosalia in the...Spaniards in 1517, the needs for minerals increased. Spain needed the gold and silver to finance its territorial...the Santa Eulalia area is uncertain. Records in Spain cite that silver was discovered in 1591 in the mountains...surface in large caves. Some of these caves and mine stopes were so large that it was said that the cathedral...of the political unrest in southcentral Mexico, Spain withdrew most of its military forces from Chihuahua |  | | Journal (issue) | | PAGE ARTICLES The Geology of the Toco District, Trinidad, West Indies. Part 2: P·etrology, Metamorphism... Illustrations The Geologyof the Toco District, Trinidad, West Indies, Part II Plate III Fig. 6 Fig. 7...W.1 .. X THE GEOLOGY OF THE TOGO DISTRICT, TRINIDAD, 1 WEST INDIES By K. w. BARR, Ph.D., F.G.S....quartz THE GEOLOGY OF THE TOCO DISTRICT, a TRINIDAD, 3 WEST INDIES d '/·:::\::·-~-P • , \, ...page 4 THE GEOLOGY OF THE TOCO DISTRICT, TRINIDAD, WEST INDIES 5 appear to lie near the basalt | | | Book | | produced specimens from such places as the La Fe Mine in the state of Chiapas and Santa Rosalia in the...Spaniards in 1517 , the needs for minerals increased. Spain needed the gold and silver to finance its territorial...the Santa Eulalia area is uncertain. Records in Spain cite that silver was discovered in 1591 in the mountains...surface in large caves. Some of these caves and mine stopes were so large that it was said that the cathedral...of the political unrest in southcentral Mexico. Spain withdrew most of its rnilitary forces from Chihuahua |  | | Journal (article/letter/editorial) | | Minettes contain olivine (Fo 84-87), diopside, and phlogopite phenocrysts in a groundmass made ofglass and...and microphenocrysts ofdiopside, Ti-phlogopite (Mg #75; Ti02 = 8-9 percent), sanidine, apatite, ilmenite...colored phlogopite phenocrysts (Mg #85-90; Ti02 = 2-3 percent) are often coated with a red phlogopite chemically...cores containing phlogopite, glass and H20-rich inclusions. Intergrowth with brown phlogopite is also common...melting of a peridotite with a low carbonate/phlogopite proportion in H 20-rich conditions does produce |  | | Journal (article/letter/editorial) | | University of the West Indies, St. Augustine, Trinidad, W.I. 1 To whom correspondence should be addressed...4.1 was a very distinct feature of muscovite, phlogopite and biotite in which the conof ESR spectra of...) Orthorhomblc iron centres in muscovitc and phlogopite micas. J. Ph~s. Chem. 4. Ll I-L13. KOI>AMA H...Indies. Imperial College of Tropical Agriculture. Trinidad. M~BRII)~ M. B.. PINNAVAI.~ T. J. and MORTLANI~ |  | | Journal (article/letter/editorial) | | alkalie~ and more loosely combined water than phlogopite. Jaloallofane. See hyaloallophane. Jocketan....of radiolaria, diatoms, foraminifera, &r Moron, Spain. 888 L.J. SPENCER ~ossite. W.C. BrSgger, Skrifter...1895, CXL, 381. Asphaltum from the Pitch Lake of Trinidad. Parorthoclase. (Parorthoklus). F. Zirkel, Lehrb...Identical with paralaurionite (see above). San Rafael mine, Chili. l~aspite. C. Hlawatsch, Ann. naturh. Hofmas...eoloured mineral occurring with rhodonite at Torrens mine, Hautes-Pyr6n~es. MnSiOs.MnCQ.89 U r a n e l a |  | | Journal (issue) | | College of Tropical Agriculture published monthly at Trinidad, British West Indies. Tropical Agn:culture contains...The Editor, Tropical Agriculture, St. Augustine, Trinidad, B.W.I. OTHER COLLEGE PUBLICATIONS. In addition...Director of Agriculture, Trinidad and Tobago, for I 942. Pp. 16, 13 X 8. (Trinidad: Government Printer, 1943...Report of the Agricultural Policy Committee of Trinidad and Tobago (Part II) and Summary of Recommendations...Recommendations of Parts I and II. Pp. 56, 10 X 6½. (Trinidad: Government Printer, 1943.) Price 18 cents. Preliminary |  | | Journal (issue) | | College of Tropical Agriculture published monthly at Trinidad, British West Indies. Tropical Agr,:culture contains...The Editor, Tropical Agriculture, St. Augustine, Trinidad, B.W.1. OTHER COLLEGE PUBLICATIONS. In addition...be technically suitable for pulp production. In Trinidad a small mill was established, running on local... 1919, 17, 152 ; 1920, 18, 323. " Bagasse '' (Trinidad), 1929, 27, I. '' Sisal Boles and Poles ,,. (Kenya)...on Cacao Research, 1941-43. Pp. 39, I r x 8½. (Trinidad : Government Printer, 1944.) Price 5s. Account |  | | Journal (issue) | | BRITISH GUIANA . . 766 • THE MINERAL INDUSTRY IN TRINIDAD . • • · 767 DREDGING IN THE FEDERATED MALAY STATES...known in some cases. At the Balaghat (Bharweli) mine, from which nearly 1½ million tons of ore have been...lead and zinc produced in India is from the Bawdwin mine in the Southern Shan States of Upper Burma. Small...and 1 • 3 per cent. of copper. The output of the mine and smelter for the year to the above date was :...containing 45 per cent. of zinc were shipped from the mine. : · The deposits, which were worked extensively |  | | Report (issue) | | Asia: Pakistan, Afghanistan and India .......6 0 Old Mine Emeralds . . . . . . . . . . . . . . . . . . . ...Maharajahs and Maharanis held large emeralds (see "Old Mine Emeralds" page 62). The Color of Islam Emerald...have produced the green fire: • Norway, Byrud Gard mine near Eidsvoll: the dumps are accessible on the shores...green emeralds in phlogopite schist with white albite blocks; good specimens rare. • Spain, Franqueira, Galicia:...secondary deposits (e.g., Sedl) are accessible, the mine itself is not. With patience, good finds are possible |  | | Report (Issue volume) | | Geological Surveys is the Seismic Research Unit in Trinidad. This was set up in 1952 and financed by Colonial...on Lime in Berlin. Mr. C. R. Cratchley visited Spain in October in order to gain familiarity in the operation...Cratchley spent one week near Sevilla in southern Spain with the field crew of the company from whom the...Experimental Officer. Thirty samples from the Emperor Gold Mine, Fij i, were assayed for gold and silver and traces...silver were also made on 91 samples from Peter's Mine, British Guiana. Analyses were made on 30 samples |  | | Report (issue) | | 37.62±0.05 Ma (MSWD = 0.53). Reported as Copper Mine Point granodiorite, same pluton as Cox and others...Location derived from Wikipedia for Copper Mine Point copper mine; accuracy of location relative to this...using constants of Steiger and Jager (1977). Copper Mine Point, Virgin Gorda batholith. Two concordant fractions...Muscovite-calcite schist, Loma la Gloria Formation from Trinidad Mountains. Reported age was 60 Ma, recalculated...e rock, Algarrobo Formation from northeast of Trinidad Mountains. Ages recalculated based on reported |
|
