 | Bouyo, M. Houketchang, Zhao, Y., Penaye, J., Zhang, S.H., Njel, U.O. (2015) Neoproterozoic subduction-related metavolcanic and metasedimentary rocks from the Rey Bouba Greenstone Belt of north-central Cameroon in the Central African Fold Belt: New insights into a continental arc geodynamic setting. Precambrian Research, 261. 40-53 doi:10.1016/j.precamres.2015.01.012 | Journal (article/letter/editorial) | | described in northern Cameroon and in southwestern Chad Republic (Fig. 1). These volcanosedimentary sequences...Zalbi and Goueygoudoum greenstone belts in southwest Chad. In previous works, these sequences were generally...Geological map of Northern Cameroon and Southwestern Chad. TBF: Tcholliré-Banyo Fault; NP: Neoproterozoic;...study area (Fig. 2). suite of the Sinassi and Mayo Kebbi Batholiths (Toteu et al., 1984, 1987, 2006; Pinna...belts and batholiths of north Cameroon and southwest Chad at the northern margin of the CAFB. (TBF: Tcholliré-Banyo |  | | Journal (issue) | | - Zone 1 (region parisienne) : Alain Carion 'li" 01.43.26.01.16. - Zone 2 (1/4 Nord-Ouest) : Jean-Jacques...Jean-Franc;oisAstier 'li" 04.76.63.03.44. - Zone 5 (1/4 Sud-Ouest) : Gerard Alias 'li" 05.61.86.68.86. Adhesion Nous...plus efficace de la culture scientifiquedans cette region. le Regne Mineral, n"31 Ainsi sur les onze themes...evidence,et ceci dans les pegmatitesdu districtde Pala. D'autrespegmatites d'interet existentegalementdans...Wright(1951) estimentpour leur part que le seul district de Pala renfermeplus de 400 dykes de pegmatites. Parmi eux |  | | Report (issue) | | in the Boron area, but also in the Death Valley region. Another example is a recent study of the glaucophane...localities the Mother Lode, Crestmore, Searles Lake, Pala, Mesa Grande, and others which contributed many...various accounts of the natural bounties of this region. Mineral riches gold and silver, mainly were among...time that turquoise had been found in the desert region between Death Valley and Goff's Mining District...section, about 15 miles long by 3 or 4 in width. The region is conspicuously volcanic in aspect, being largely |  | | Journal (article/letter/editorial) | | mine, Inyo County 23603). (LACMNH Figure 7. Epidote, Downloaded by [McGill University Library] at...associated minerals, such as tine andradite garnet and epidote crystals at Garnet Hill in Calaveras County; grossular...several smaller ranges. The complex geology of this region has given rise to a variety of 402 ROCKS 81MINERALS...though the production of good specimens from this region has been relatively modest. Cavities in the basaltic...of the Baja California Peninsula. Much of this region is underlain by a complex mass of intrusive igneous |  | | Report (issue) | | localities ^the Mother Lode, Crestmore, Searles Lake, Pala and Mesa Grande, and others have contributed many...time that turquoise had been found in tlie desert region between Death Valley and Goff's Mining District...about 1.0 miles long by 3 or 4 in width. The region is conspicuously volcanic in aspect, being largely...in the numerous small springs abounding in that region, but only in minute quantities. These springs were...plains, white with efflorescent matters, in that region. Not being iu a situation immediately to visit |  | | Report (issue) | | -------------- 98 --------------- 98 ANDALUSITE EPIDOTE -------------- 99 ---------------- AGALMATOLITE...Lepidolite Mine, in 7. structure ----- 15 Mountain. Pala surface, showing Weathered Diego County. San... 13. Town of Belfry San Pala, “ of 14. Red 15. Pala 16. Pala Tourmaline Chief Outcrop ...(Simmons) Mine, 61 Mine at Pala Mine, Dehesa, Mountain 60 east County Pala Kunzite for Los dump...57 Mine, showing workings Lithia Southwestern Pala. 56 Indian houses Beach, Redondo, Los Angeles |  | | Journal (article/letter/editorial) | | rich min36 ROCKS & MINERALS ing history of the region. Additional exhibits feature worldwide minerals...kunzite specimen from the Oceanview mine of the Pala district of San Diego County (fig. 3). The museum...students and organizations from throughout the region, with tours and demonstrations given free of charge... 10 cm tall, Big Kahuna Pocket, Oceanview mine, Pala, San Diego County, California. One of the finest...White Queen mine, Pala, California. Former Chris Korpi collection. Figure 4. Epidote, 7.3 × 4.3 cm, Santa |  | | Journal (article/letter/editorial) | | Figure 4 (above). Kunzite crystal, 3.1 inches high, Pala, San Diego County; Bill Larson specimen. Faceted...towns of Pala and Mesa Grande, in San Diego County, that brought prominence to this region, attracting...attracting buyers from around the world. The mines in the Pala district tend to produce mostly pink tourmaline...anew in this region. Edward Swoboda and William Larson formed a mineral company called Pala Properties...International, and began to reopen some of the mines in the Pala district. After a successful venture at the Stewart |  | | Report (issue) | | discovered in California came from the gold mining region of the Sierra Nevada, beginning with the nickel...quartz, rutile, almandite garnet, topaz, zircon and epidote. A diamond weighing 2^ carats was found at this...the American in platy crystalline Company, at Pala. masses, and long irregular Litliia Bismuth is...Gold in arseuopyrite is common in the Mother Lode region and in the Alleghany district, Sierra County. Calcite... 29 Lassen County: Native copper occurred in epidote rock at the Lummis mine. Los Angeles County: |  | | Journal (article/letter/editorial) | | There are some mineral localities in Sverdlovsk region, Urals, known in literature: Murzinka, Tokavaya...near town of Mariupol, S. Ukraine, and in Colyn region W. of r. Dniepr. ANDREASBERG, Germany, S E Oberharz...Freibergite, var. of tetrahedrite occurs in Freiberg region. SW of the Freiberg deposit is found locality Zinnwald:...selenium mineral. OBERFAIZ, Bavaria, this is a region with some interesting mineral deposits: Nabburg...large xIs of microcline, smoky quartz, desmine, epidote xIs, chabasite, beryl. In pegmatite veins have |  | | Journal (article/letter/editorial) | | microthermometric data are presented for fluid inclusions in epidote, garnet, hedenbergite, armenite, quartz, fluorite...from areas rich in sulphide ores where late-stage epidote and chlorite overprinted the early stages of skarn...Metasomatic stage ( T - 400 ~ characterized by epidote and amphibole (actinolite > tremolite); (3) Hydrothermal...deposited chiefly together with amphibole and epidote, partially replaced by chlorite. Sample localities...relatively fresh crystals of garnet, hedenbergite, epidote, and rare crystals of armenite (BaCa2A16SisO2~2H20) |  | | Report (issue) | | quartz, rutile, almandite garnet, topaz, zircon and epidote. A diamond weighing 1^ carats was found at found...mine feldspar, tourmaline can Lithia company, at Pala. Rincon. Rogers^^^ Tuolumne County Minute crystals...gold produced in the State. in the Mother Lode region and Gold in arsenopyrite is also Alleghany district...gold at Mokeluinne Hill and in the Mother Lode region. Inyo County: In the Cerro Gordo district considerable...in a pegmatite vein with bornite, chalcopyrite, epidote, garnet, axinite, hornblende and orthoclase. Also |  | | Journal (article/letter/editorial) | | late stage fluids were likely localized to the region near the studied traverse. Received 23 June 2016...preceded continental collision in the North Qaidam region. Previous studies defined a pressure–temperature...the Luliang Shan terrane re-equilibrated under epidote-amphibolite facies conditions of 0.8–0.9 GPa and...δ11B (‰) 25000 25000 Pala Mica c y (microns) NIST-611 Glass b 20000 Pala Mica d 20000 20000... 15000 10000 10000 5000 5 5000 Pala Mica (parallel) Pala Mica (perpendicular) 0 0 35000 40000 |  | | Report (issue) | | . ..... ..... .. . . .... 104 T ourmaline and epidote rock ............................................Erosion, which had already modified the uplifting region, now predominated, and stream-cut valleys, 500...physiographic history, and most of the mapped faults of the region underlain by crystalline rocks are postulated from...elevation of about 1600 feet on the mountain north of Pala probably is part of the Bear Valley surface, as...locally am phibole, andalusite, sillimanite, garnet, epidote, and other silicates. The biotite is usually in |  | | Report (issue) | | Sa7i Diego Count if : Further reference for the Pala Wright (5) pp. 19,40. district, Jahns and AMPHIBOLES...the northern parts of the Queen and Chief mines at Pala, Jahns and Wright (5) p. 42. ANTIMONY Butte County:...Queen mine and on Hiriart Mountain at crystals, as Pala, Jahns and Wright (5) p. 41. APOPHYLLITE Los...end of Butte Valley, Ubehebe Inyo County: in epidote, mining district, confirms the reference no. 2...County: Pale lavender crystals of axinite occur with epidote and qaiartz in metamorphosed serpentine. Cliestennan |  | | Journal (issue) | | crocoite; w e’ve made our apologies to Bill Larson of Pala International who, thank goodness, has a good sense...approxim ate where not positively 1976) and the Pala district (Leon T. Silver, personal communication...intrusive bodies exposed in neighboring districts (e.g., Pala, Rincon, M esa Grande; Jahns and Tuttle, 1963)....Columbite-Tantalite: FerrocolumbiteManganocolumbite Cookeite Epidote (including Clinozoisite) Fersmite 2 Fluorapatite...resembles material from the Mursinka-Alabashka region, Urals, and from the Volyn pegma tites, Ukraine |  | | Journal (issue) | | on DVD wilensky Fluorite, Huanzala mine, Dos de Mayo Province, Peru. Wilensky Fine Minerals 14 Longview...Cal and Kerith Graeber Richard Graeme Bill Larson, Pala International Rob Lavinsky, the Arkenstone John...Mineralogical Record, volume 39, May–June, 2008 Epidote and Associated Minerals from Green Monster Mountain...Douglas C. Toland and Thomas R. Hanna World-class epidote crystals were first found on Green Monster Mountain...prospectors looking for copper in the early 1900s. The epidote specimens occur within a skarn complex on privately |  | | Book | | plagioclase and A secondary mineral zoisite or epidote. mineral formed later than the rock enclosing...side of the state (See J. much more R. Browne region — 1-1). Mother Lode, a The Mother Lode label...part of Map restricted meaning. Nevada gold region is five sometimes described as the of the... 117. San Diego County: 1. In the Stewart mine, Pala District (Map 9-1), a mass centrates of the Providence...as the Tourmaline, Pala Chief, and R. H. Jahns and Wright, 1951, p. 38. at Pala. is at in the Margarita |  | | Report (volume) | | Geographic relation of Agua Tibia Primitive Area to Pala and Rincon pegmatite districts and to Magee quarry...Forest in San Diego and Riverside Counties near the Pala and Rincon pegmatite districts. The area contains...area includes parts of the Pechanga, Vail Lake, Pala, and Boucher Hill T^-minute quadrangles. The primitive...described the major rock units found in this general region of southern California. His mapping included the...initially introducing him to the geology of the region during the late 1940's. GEOLOGY GEOLOGIC SETTING |  | | Journal (issue) | | Badge Raffle Prize’, a beautiful prehnite with epidote specimen. Wearing our name badges makes it easier...special Morganite crystal from the White Queen Mine, Pala, (value $150) has been added to our group of raffle...THE MUSEUM AND CLASSROOM MARCH 2010 HISTORY OF PALA AND WHITE QUEEN MINE FEBRUARY 2010 MINING AT THE...THE WHITE QUEEN MINE April 2011 IN THE PALA, CA Fallbrook Gem and Mineral Society 6 Lithosphere...Lithosphere JANUARY 2010 WHITE QUEEN MINE PALA, CA DECEMBER 2009 NEW METHOD MINE AMBOY TO KELBAKER RD. NORTH | | | Book | | saussurite A mixture of plagioclase and zoisite or epidote. secondary mineral A mineral farmed, later than...the state (See Map 1-1). The Sierra Nevada gold region is sometimes described as the Mother Lode, a term...five of the more southern counties of the Sierra region - Mariposa, Tuolurnne, Calaveras, Amador, and El... 117. San Diego County: l. In the Stewart mine, Pala District (Map 9-1 ), a mass of native bismuth of...occur at the Tourmaline, Pala Chief, and Vanderburg-Katerina mines, at Pala. R. H. Jahns and Wright, |  | | Report (issue) | | Small diamonds are reported to have been found a epidote. few miles north of Coalinga. Imperial County...Stewart mine of the American Lithia company, at Pala. The mineral occurred in platy and long : MINERALS...arsenopyrite is also common in the Mother Lode region and in the Alleghany district. Sierra County. Gold...of this county. Lassen County Native copper in epidote rock at the Lummis mine. Los Angeles County At...gold at Mokelumne Hill and in the Mother Lode region. Inyo County In the Cerro Gordo district considerable |  | | Journal (issue) | | Articles Capelinha: Titanite and epidote deposits of the Capelinha Region, Minas Gerais, Brazil ..........P. Moore COVER: TITANITE twin with albite and epidote on matrix, 4.4 cm, from Capelinha, Minas Gerais...2022 CAPELINHA TITANITE AND EPIDOTE DEPOSITS OF THE CAPELINHA REGION, MINAS GERAIS, BRAZIL Andrea Bartorelli1...W. Romano3 Since the mid-1960s, the Capelinha region in the State of Minas Gerais, Brazil, has become...producing beautiful specimens of titanite and epidote. The titanite crystals, measuring up to 20 cm, |  | | Journal (article/letter/editorial) | | York City and was cut into fine gems. Noted from Pala, California; Mt. Antero, Colorado; some localities...Grande, Pala, and Rincón. Also from near North Italian Mountain in the Crested Butte region of Gunnison...Frost quarry near Davis, Howard county, Maryland. EPIDOTE is a basic, calcium, aluminum, and iron silicate... New York; Lime Crest, New Jersey; near Exeter, Pala, and Crestmore, California; in crystals several...Fairplay, El Dorado county ; and near Bonsalf south of Pala, San Diego county; in California. PREHNITE is an |  | | Journal (article/letter/editorial) | | An oxygen barometer with the assemblage garnet^epidote Casey L. Donohue *, Eric J. Essene Department of...oxygen barometer has been developed using garnet^epidote equilibria and the latest available thermodynamic...O12 ‡ H2 O ‡ 1=2 O2 epidote Ps33 Czo67 † garnet Alm33 Grs67 † fluid where epidote (Ps33 Czo67 ) reacts...form (Alm33 Grs67 ), water and oxygen. The garnet^epidote oxybarometer has been applied to a wide variety...the locus of the curve in fO2 /T space. Garnet^epidote equilibria may also provide a thermometer when |
|
