 | | Journal (issue) | | Julie Newnham 10 Heyington Close, Croydon Victoria 3136, Australia Telephone (03) 9725 5386 Facsimile (03)...New South Wales, Queensland, South Australia, Tasmania and Victoria Volume 1, Number 2 December 1995...Stewart, NSW .... 9 B. England Zeolites from Daylesford, Victoria .......... 13 D. Henry Some mines of the...high, from a new find in the Strathbogie Ranges, Victoria. T. Fraser collection. Photo: F. Coffa. Australian...Australian Museum North Terrace Adelaide, South Australia. INTRODUCTION One of the aims of the Australian |  | | Journal (article/letter/editorial) | | situated along a power line that crosses Cotton Hill Road in PortĀ land, Connecticut. The new pegmatite was...uncovered by a collector while walking from one quarry dump to another. The pegmatites at this location...06040. The Case quarries consist of three small quarry pits, each in a different pegmatite, within 150...hematite (black platy crystals, similar to ilmenite), zircon (yellow, red, or brown, long prismatic crystals)...quality to the well-known material from the Harvard quarry in Greenwood, Maine. T H E ORIGIN OF A R C H E |  | | Journal (article/letter/editorial) | | zircons from upper Permian and lower Triassic Victoria Group sandstones, Shackleton Glacier region, Antarctica:...Australian National University, Canberra, ACT 2000, Australia Received 14 June 2006; accepted 1 May 2007 Available... siliciclastic strata of the PermianāTriassic Victoria Group (Beacon Supergroup), the Gondwana sequence...Shackleton Glacier region have yielded detrital zircon U/Pb SHRIMP age populations with clear evidence...by Elsevier B.V. All rights reserved. Keywords: Zircon; geochronology; Beacon; Antarctica; PermianāTriassic |  | | Journal (article/letter/editorial) | | ACT 0200, Australia. Mark.Fanning@anu.edu.au MA Keywords: Antarctica, Gondwana, Victoria Group, detrital...detrital zircon geochronology, East Antarctic craton. Abstract TE D The Antarctic Gondwana sequence...those two localities demonstrate a slowly changing zircon age-probability distribution for four samples from...range 600-530 Ma, with a scatter of older ages. Zircon grains in the lower Buckley Formation sandstone...of older ages. Archean to early Mesoproterozoic zircon grains are few in number RI and may have been |  | | Journal (article/letter/editorial) | | Mis- off the road to the north. A good dirt sion Curio Mart, 4400 Mission Road, road leads to the mine...Exeter, about 400 feet up the hillside from the road. It would bĆŖ best to ask for directions in Exeter...specimen with drusy quartz. At Crystal River limestone quarry (Crystal River), nice sharp calcite xls were found...bridge was built over a small creek for a private road). The specimen was found by one of the workmen,...Westchester Co., N . Y. The pebble was found in the road excavation below the office. Miss Patsy Bourne, |  | | Report (issue) | | occurrence Princess sodalite mine Vardy quarry Golding-Keene quarry Egan Chute occurrences York River tactite...tactite zone occurrence Morrison quarry Davis quarry York River corundum occurrence Childs Mine Rankin...Mine Madawaska (Faraday) Mine Dyno Mine Highway 620 road-cuts Paudash - Haliburton - Minden Bicroft Mine...Mine Woodcox occurrence Padwell Mine Eagle Lake quarry Crystal Lake fluoborite occurrence Crystal Lake...Mine Davis Lake corundum occurrence Minden-Norland road-cuts Wilberforce Area Halo Mine Cardiff uranium |  | | Report (issue) | | Section 1: 3 Ottawa - North Bay South March quarry. . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . MacMillan quarry. . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . Hanna quarry. . . . . . . . . . . . . . . . . . . . . . . . . ..... . ā¢ . . . . . . . . . . . . . . . . Pakenham quarry. . . . . . . . . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . . . . . . . Jamieson quarry. . . . . . . .. . . . . . . . . . . . .ā¢ . . . |  | | Journal (article/letter/editorial) | | homepage: www.elsevier.com/locate/lithos SHRIMP UāPb zircon dating for granitoids from the StrzegomāSobĆ³tka...7 Ma. The temperature estimates along with the zircon crystal morphology show the gradual but signiļ¬cant...at 308.4 Ā± 1.7 Ma using Pb-evaporation method on zircon (Turniak et al., 2005). This rock type shows pronounced...hornblendeābiotite granite (e.g., biotite composition, zircon forms and habits, initial 87Sr/86Sr). The hornblendeā...varieties, respectively (RbāSr method, whole rock). Zircon Pb-evaporation dating yielded a signiļ¬cantly older |  | | Report (issue) | | McCloskey Field feldspar occurrence Canada Cement quarry Forsyth Mine Baldwin Mine Headley Mine Cantley...Blanche Mine Blackburn Mine McLelland Mine Cote quarry Dacey Mine Horseshoe Mine Kitty Lynch, Kodak mines...Caverns Lake Girard Mine Wakefield quarry Breckin Mine Templeton quarry Seybold Mine Gemmill Mine Deziel...Mine St-Pierre-de-Wakefield quarry McGlashan Mine Leduc Mine Lachaine quarry Evans-Lou Mine Old Chelsea-Gatineau...Chamberlin quarry Road-cuts along Gatineau Parkway Sweeney Mine O'Neill Mine McConnell Mine Cross quarry Maxwell |  | | Journal (issue) | | or check. ing,ā the fine art of walking about Australia and collecting rocks for recreation. In addition...presentation by club member Steve Hill. Steve lived in Australia for several years and was actively involved in...gemstones, Northern Territory and Queensland, Australia Kathy Hrechka: Recently taken microphotographs...spoke about his adventures while fossicking in Australia. Photos: Sheryl Sims. New Business The president...frogs and salamanders that are crossing the access road to the pond for the summer. A fossil-hunting trip |  | | Report (issue) | | ................................ Canada Cement quarry . . . . . . ā¢ . . . . . . . . . . . . . . ā¢ . ............................................ Cote quarry . . . . . . . . . . . . ā¢ . . . . . . . . . . ... . ā¢ . . . . . . . . . . ā¢ . . . . . Wakefield quarry..................................... . .... Breckin... . . . . . . ā¢ . . . . . . . . . . . Templeton quarry.. . . . . . . . . . ā¢ . . . . . . . ā¢ . . ā¢ . ...ā¢ . . . . . . . ā¢ . . . St-Pierre-de-Wakefield quarry............................. McGlashan Mine . |  | | Journal (article/letter/editorial) | | Gondwana Plate margin in the Weddell Sea sector: Zircon geochronology of Upper Paleozoic (mainly Permian)...Australian National University, Canberra, ACT 0200, Australia Department of Geology, University of Wisconsin-Oshkosh...Keywords: Gondwana Zircon Antarctica Ellsworth Mountains Permian a b s t r a c t Zircon geochronology has...Bluffs is comparable in composition and detrital zircon signature to Devonian sandstones in both the Ellsworth...objectives for this study. The ļ¬rst is to establish zircon-based age constraints for the Permian Polarstar |  | Presnyakov, S.L., Belyaeva, E.V., Lyubin, V.P., Rodionov, N.V., Antonov, A.V., Saltykova, A.K., Berezhnaya, N.G., Sergeev, S.A. (2012) Age of the earliest Paleolithic sites in the northern part of the Armenian Highland by SHRIMP-II UāPb geochronology of zircons from volcanic ashes. Gondwana Research, 21 (4) 928-938 doi:10.1016/j.gr.2011.11.009 | Journal (article/letter/editorial) | | Early Acheulian sites UāPb SHRIMP geochronology Zircon Volcanic ash a b s t r a c t Understanding the...sequence includes ash-bearing volcanic layers with zircon autocrysts, suitable for SIMS UāPb dating. At the...during multiple eruptions and were not reworked. Zircon crystallization ages of 1.942 Ā± 0.046 Ma, 1.804...artifacts underneath the oldest ash layer, the zircon age indicates the minimum age of artifacts. These...stratigraphic succession at this site implies that the UāPb zircon age of 1.432 Ā± 0.028 Ma from the ash is nearly |  | | Journal (article/letter/editorial) | | Ward's Natural Science Establishment 3000 E. Ridge Road, Box 1712 Rochester, New York 14603 Ontario...scapolite group minĀ eral. The material came from a road cut along Route #41 in Griffiths. The pseudomorphs...sylvite, and anhydrite. Quebec Francon quarry The large Francon quarry in Montreal is located in a residential...little or no land available for expanding the quarry. The economics of digĀ ging deeper for the construction-grade...mining offsets transportation costs. The Francon quarry is world-famous for being the first (or only) producing |  | | Report (issue) | | olistostrome with a massive sandstone matrix: The King Ridge Road mĆ©lange at Cazadero, California . . . . . . ...intra-oceanic thrusting (but not subduction) near a ridge crest and soon after subduction initiation, and...the Ankara MĆ©lange as an oceanic block. Detrital zircon U/Pb analyses from the mĆ©lange and the overlapping...olistostrome with a massive sandstone matrix: The King Ridge Road mĆ©lange at Cazadero, California, in Wakabayashi...D. Sharp Berkeley Geochronology Center, 2455 Ridge Road, Berkeley, California 94709, USA Jeffrey Ross* |  | | Journal (article/letter/editorial) | | granite-greenstone belt of northern Tanzania around Lake Victoria. The Dodoman belt SC is comprised of granites...Kabete et al. (2012) reported U-Pb SHRIMP detrital zircon ages of 4013Ā±4 Ma and 3604Ā±6 Ma for the fuchsite-...are found in the area east and south of the Lake Victoria (Fig. 1a). The granite- AC greenstone belts...part of the mineral endowed area called the Lake Victoria Gold Field (LVGF). In the most recent subdivisions...Neoarchaean Lake Victoria minerogenic zone (NALZ) by Leger et al. (2015). The Lake Victoria Goldfield (LVGF) |  | | Journal (article/letter/editorial) | | i d e n t ā D a v i d E. Jensen, 199 East Brook Road, Pittsford, N. Y . 14534 S e c r e t a r y ā M r...a n ā R o b e r t ( B o b ) Romanowski, 2708 Ridge Road Drive, A l e x a n d r i a , V a . 22302 Corresponding... made an early winter trip to Cedar Hill Quarry for zircon, hydromagnesite, deweylite, and other serpentine...Society, Melbourne, with tales of his opal hunts in Australia, well documented with slides Joe Ten Hagen, Gemologist...Potsdam, have found small uraninite crystals in the quarry dumps of the McLear pegmatite. Many other minerals |  | | Journal (article/letter/editorial) | | elsevier.com/locate/rgg Results of U-Pb dating of zircon and baddeleyite from the Norilāsk-1 ultramafic-mafic...Continents (GEMOC), Macquarie University, Sydney, Australia c A.P. Karpinsky Geological Research Institute...mineralogical and isotope-geochemical particularities of zircon and baddeleyite from various rocks of the economic...morphology and internal structure identify four zircon populations, characterized by different U-Pb (SHRIMP-II)...ages. The U-Pb ages of baddeleyite and the defined zircon populations cover a significant time span (from |  | | Journal (issue) | | pick one up? Lots of luck! (Continues on page 2) Zircon-the World's Oldest Mineral Dr. Vivien Gornitz vgornitz@giss...older rocks. However, tiny grains of zircon found in Australia that are up to 4.4 billion years old,...magma" resulting from the meteoritic onslaught, the zircon grains point to a less hellish early environment...gemstone and as a tiny time capsule. Zircon-the Mineral and Gem Zircon, zirconium silicate, is a common accessory...small amounts in sedimentary and metamorphic rocks. Zircon is relatively hard, dense, chemically resistant |  | | Report (issue) | | rare-earth-element patterns 14. Concordia diagram for zircon from Glastonbury and Monson Gneisses 15. Rb-Sr...Monson Gneisses Uranium-thorium-lead isotope ages of zircon from Glastonbury and Monson Gneisses Whole-rock...not comagmatically from calcalkaline crust. U-Pb zircon ages for both the northern and southern bodies...to the Monson, which yields distinctly younger zircon 207Pb/ao8Pb ages of 428 to 440 m.y. However, this...inherited zircon in the Glastonbury or (2) preferential metamorphic overprinting of the zircon in the Monson |  | | Book (edition) | | lithium mica, close to biotite in composition. ZIRCON-Zirconium silicate ZOISITE-Calcium aluminum silicate...found in the aegirite-granite at the Flatrock (Quarry in Waterford. Its color is dull black to brownish...University, New Haven, Connecticut. At the Strickland Quarry in Middlesex County, amblyĀ gonite occurs as white...can be found as fine specimens at the Strickland1 Quarry in Portland, and on Jail Hill in Haddam. ā¢ Geologists...Hartford and is reached by turning northward onto a road three miles east of Bakersville. At this point ask |  | | Report (issue) | | galena occurrence Dominion Mine Road-cuts on Val-des-Monts - Templeton road Haycock Mine Sabourin property...Feldspar quarry Peerless (Diamond) Mine Road-cut Cadieux quartzite quarry Emerald Mine Pedneaud quarry Derry...Little Rapids (Watts) Mine km 20.0, road-cut on Highway 309 km 26.4, road-cuts on Highway 309 Hart Mine Lapointe...Evans-Lou mine km 35.4, road-cuts on Highway 309 Villeneuve Mine km 41. 7 to 42.2, road-cuts both sides of...of Highway 309 km 43.3, road-cut, west side Highway 309 km 44.2, road-cut, west side Highway 309 Adelina |  | Michaelsen, P., Henderson, R. A., Crosdale, P. J., Fanning, C. M. (2001) Age and significance of the Platypus Tuff Bed, a regional reference horizon in the Upper Permian Moranbah Coal Measures, north Bowen Basin. Australian Journal of Earth Sciences, 48 (2) 183-192 doi:10.1046/j.1440-0952.2001.00854.x | Journal (article/letter/editorial) | | Earth Sciences, James Cook University, Qld 4811, Australia. Research School of Earth Sciences, Australian...Australian National University, ACT 0200, Australia. The Platypus Tuff Bed in the Permian Moranbah Coal Measures...altered biotite (to 0.8 mm), and albite (to 1.1 mm). Zircon, ilmenite and apatite are uncommon to rare accessories...may be interpreted to represent inherited older zircon components. Twenty-six analyses were made on 23...the areas analysed are of simple zoned magmatic zircon, but this does not preclude the Figure 5 Tera |  | | Catalog/List | | WARD'S NATURAL SCIENCE ESTABLISHMENT, INC. 3000 Ridge Road East Rochester 9 New York Price List U-7 URANIUM...(Norway)- massive, $.75 per lb. ALVITE (Altered zircon) (Norway)- brown massive: 1" x 2", $2.00 AUTINITE...$3-50; 3/4" x 1 5/8", $7.50. CYRTOLITE (An altered zircon containing hafĀ nium, uranium etc.) (Ontario)-...MALACON (North Carolina)- with columbite: (Altered zircon) U", $-75 (Norway)- gray-brown xls, 3/8", (Norway)-...$1.00; 3", 1.50; 4", $2.00; 4|", $2.50 (South Australia)- grass green xlplates, 3/4" x 1|", $2.00. TSCHEFFKINITE |  | Schmitz, M.D., Bowring, S.A., Ludwig, K.R., Renne, P.R. (2003) Comment on āPrecise KāAr, 40 Arā 39 Ar, RbāSr and UāPb mineral ages from the 27.5 Ma Fish Canyon Tuff reference standardā by M.A. Lanphere and H. Baadsgaard. Chemical Geology, 199 (3) 277-280 doi:10.1016/s0009-2541(03)00078-0 | Journal (article/letter/editorial) | | Carnegie Institution of Washington, 5251 Broad Branch Road, N.W. Washington, DC, USA b Department of Earth...MA, USA c Berkeley Geochronology Center, 2455 Ridge Road, Berkeley, CA 94709, USA d Department of Earth...sanidine and biotite, Rb ā Sr biotite and U ā Pb zircon dates from the same tuff. Among the conclusions...of 27.55 F 0.16 Ma on milligram-sized multigrain zircon fractions supports the interpreted K ā Ar and 40Ar...39Ar) dates are systematically younger than U ā Pb zircon dates for the same volcanic rock (e.g. Min et al |
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Ridge Road quarry, Daylesford, Hepburn Shire, Victoria, Australia