 | | Journal (article/letter/editorial) | | DURING HIGHWAY CONSTRUCTION, HULL TOWNSHIP, GATINEAU COUNTY, QUEBEC. P. M. Belley1, R. Rowe2, and M. Picard2...inclined, irregular solid calcite vein cutting meta-sediments. In this vein, specimens of euhedral molybdenite... to 5 cm, occurred embedded in the calcite. The vein also contained minor amphibole, feldspar, mica,...hydrothermal fluids present in fissures in the host rock. NEW DATA ON GRAYITE-LIKE MINERALS FROM WISCONSIN PEGMATITES...Buchholz1, A. U. Falster2, and W. B. Simmons2. 11140 12th St. N., Wisconsin Rapids, WI 54494; 2Dept. of Earth |  | | Show/Event (guide) | | Tutt, Andrea Hart, Jesse Sackett, Ken Wolf What's New In Minerals - Jeff Scovii Auction Solicitor General...a cliff. I n the United States, there is both a new sense of hope and fear for the future at opposites...u ' l l notice in the Program that we have five new invited speakers and three returning favorites. O...into Saturday morning. Yo u ' l l find a number of new dealers upstairs. Our approach has been to follow...the first definitive talk on the minerals of Mt. St-Hilaire from his personal experiences in the early |  | | Journal (article/letter/editorial) | | Silver crystals, Bachelor mine, Amethyst vein system, Mineral County, Colorado; Dave Bunk specimen, Jesse...Moxon, 66–72 Albite, Quebec, 498 Allanite–(Ce), New York, 162 Almandine, British Columbia, 32; Nunavut...Benitoite, California, 20 Bernstein, M., 444–45 Beryl, New Mexico, 21; Utah, 21 Beudantite, Nevada, 516 Biotite...462; Colorado, 410; Michigan, 312; Nevada, 516; New York, 162, 253; Quebec, 502; see Guth, A. L. Campbell...502 Chalcopyrite, Colorado, 407; Nevada, 517; New York, 162; Quebec, 502 Chamberlain, S. C., Diagenetic |  | Ribeiro da Costa, Isabel, Antunes, Isabel Margarida H. R., Mourão, Cyntia, Recio, Clemente, Guimarães, Fernanda, Ramos, João Farinha, Barriga, Fernando J. A. S. (2018) Contact metamorphism associated to the Penamacor–Monsanto granitic intrusion (Central Portugal): geochemical, isotopic and mineralogical features. Journal of Iberian Geology, 44 (2). 335-353 doi:10.1007/s41513-018-0050-x | Journal (article/letter/editorial) | | plagioclase ± cordierite, in spotted-schists; biotite + chlorite ± quartz ± plagioclase (± cordierite), in hornfelses)...contact rocks reached the biotite zone (or even the cordierite zone, in some cases), equivalent to upper greenschist...metapelites and in the contact-zone rocks; relic cordierite appears only in a few samples. Chlorite from...way to biotite in the contactzone rocks. Relic cordierite porphyroblasts are found only in a few spotted-schists...g., sample P-36A). Total Al contents in these cordierite relics are quite similar (0.97–1.03 A l IVapfu |  | Roda-Robles, Encarnación, Gil-Crespo, Pedro Pablo, Pesquera, Alfonso, Lima, Alexandre, Garate-Olave, Idoia, Merino-Martínez, Enrique, Cardoso-Fernandes, Joana, Errandonea-Martin, Jon (2022) Compositional Variations in Apatite and Petrogenetic Significance: Examples from Peraluminous Granites and Related Pegmatites and Hydrothermal Veins from the Central Iberian Zone (Spain and Portugal) Minerals, 12 (11) 1401 doi:10.3390/min12111401 | Journal (article/letter/editorial) | | minerals competing for them. The subrounded Fe-Mn phosphate nodules, where apatite often occurs in P-rich...differentiation processes [5–7], allows this phosphate to monitor magmatic evolution [7]. Apatite composition... we compiled a wide chemical dataset (including new analyses and others compiled from the literature)...muscovite ± cordierite ± andalusite/sillimanite monzogranite (≈80%), followed by two-mica ± cordierite ± an...2.4. P-Rich Pegmatites In the CIZ, the beryl–phosphate-rich pegmatites often occur as isolated bodies |  | | Journal (article/letter/editorial) | | Pluton, Germany. At its western rim, thrustbound and vein-type mineral assemblages with Au-As-Sb and F-Ba...interpretation 4.1 Vein-type sulfide deposits with carbonate gangue in the wall rocks of granites Three vein-type deposits...Sinatengrün are dealt with later because they do not form vein-type deposits of their own but are only confined...favor of the S contents. The Brandholz-Goldkronach vein-type deposit (section 4.1) has to be placed in the...minor silicification), V: silicification/ quartz vein plus U mineralization (Fig. 3c). Episyenitization |  | Villaseca, C., Merino Martínez, E., Orejana, D., Andersen, T., Belousova, E. (2016) Zircon Hf signatures from granitic orthogneisses of the Spanish Central System: Significance and sources of the Cambro-Ordovician magmatism in the Iberian Variscan Belt. Gondwana Research, 34. 60-83 doi:10.1016/j.gr.2016.03.004 | Journal (article/letter/editorial) | | Sierra de Guadarrama (eastern side of the SCS). New U-Pb LA-ICPMS and SHRIMP zircon dating of three orthogneisses...plagioclase, biotite and sillimanite, but containing cordierite instead of garnet. CE P Sample W-37 from the...sillimanite. Accessory amounts of garnet, pinnite (cordierite), residual kyanite and rutile (mostly as inclusions...7500S ICP-MS MA attached to a Merchantek 213 nm New Wave Nd:YAG laser microprobe at GEMOC (Sydney, Australia)...the best estimate for the granite intrusion. This new age is slightly older than the one previously published |
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