 | | Journal (article/letter/editorial) | | Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany Scottish Universities Environmental Research Centre...hydrothermal vein-type deposits (Rhenish Massif, Germany). All samples were prechecked for textural and...theoretical models (e.g., Sack and Loucks, 1985; Ebel and Sack, 1989, 1991) and calculations using thermochemical...shales and siliceous limestones at Arnsberg, NE Rhenish Massif, Germany. Fluid inclusion studies have shown...veins of the Ramsbeck deposit, NE Rhenish Massif, Germany, have been extensively overprinted by late-stage |  | | | | Department of Mineralogy, South Australian Museum, North Terrace, Adelaide, South Australia 5000, Australia...species at the Carlin-type Zarshouran Au-As deposit North of the town of Takab in the Province of West Azarbaijan...was formed after orpiment, contemporaneously with quartz II, at a temperature between 157 and 193ºC. The...Dr Farahnaz Daliran (University of Karlsruhe, Germany) in recognition of her outstanding contributions...length of several centimetres, associated with quartz and stibnite. This material was later investigated |  | | Book (edition) | | more particularly as respects the geology of Germany and the lists of or- He has not been able to...grains of sea- water, taken from the middle of the North Atlantic, contained, Muriate of soda Sulphate of...there exists a maximum of saltness towards the north, and another towards the south ; the first being...appear to alter with the longitude. 4. In proceeding north from the northern maximum, the specific gravity...slope of the Ozark mountains, North America, and about six miles north from the Washita, from which take |  | | Report (issue) | | compression, and weak compression or extension in the north-south direction. INTRODUCTION Crustal subsidence...the Hall's Ridge quarry at Jonesboro, Maine, and aided us in our operations. John E. Ebel, Henri S. Swolfs...fact which will be discussed in a later section. North and west from the coast in this area the percent...complex multiple intrusions of gabbro, diorite, and quartz diorite with local igneous layering, multiple dikes...brecciated gabbro and wall rocks veined by diorite, quartz diorite, and granite (Gates, 1983). Mafic intrusions |  | | Journal (article/letter/editorial) | | Kyte and Bostwick, 1995; Pierrard et al., 1998; Ebel and Grossman, 2005). In Phanerozoic impact deposits...spinels can form by condensation from an impact vapor (Ebel and Grossman, 2005). These models suggest that spinels...spherules at temperatures greater than 1600 °C (Ebel and Grossman, 2005; Gayraud et al., 1996). A range...the vapor conditions when the spherules quenched (Ebel and Grossman, 2005), as well as the composition...melt or through direct condensation from vapor (Ebel and Grossman, 2005; Gayraud et al., 1996; Kyte and |  | Staude, S., Mordhorst, T., Neumann, R., Prebeck, W., Markl, G. (2010) Compositional variation of the tennantite–tetrahedrite solid-solution series in the Schwarzwald ore district (SW Germany): The role of mineralization processes and fluid source. Mineralogical Magazine, 74 (2) 309-339 doi:10.1180/minmag.2010.074.2.309 | Journal (article/letter/editorial) | | solidsolution series in the Schwarzwald ore district (SW Germany): The role of mineralization processes and fluid...Tübingen, Wilhelmstrasse 56, D-72074 Tübingen, Germany [Received 30 October 2009; Accepted 28 April 2010]...locations in the Schwarzwald ore district of SW Germany. Electron microprobe analysis is used to correlate...Fe-rich fahlore in higher stratigraphic levels (North) and Zn- and Ag-rich fahlore in lower stratigraphic...subdivided into the Baden-BadenZone (BBZ) in the North (belonging to the Saxothuringian) and into the Moldanubian |  | Demir, Yilmaz, Uysal, Ibrahim, Burhan Sadiklar, M., Sipahi, Ferkan (2008) Mineralogy, mineral chemistry, and fluid inclusion investigation of Köstere hydrothermal vein-type deposit (Gümüşhane, NE-Turkey) Neues Jahrbuch für Mineralogie - Abhandlungen, 185 (2) 215-232 doi:10.1127/0077-7757/2008/0122 | Journal (article/letter/editorial) | | the basis of fluid inclusions studies measured in quartz minerals. These data indicate that ore formation...skarn-vein, porphyry Cu, Mo, and Cu-Cr ore belts from north to south (Fig. 1A). This metallogenetic province...K-Ar age of 72.1 ± 3.6 Ma has been obtained for a quartz monzonite sample from the Torul Pluton (JICA 1985)...vein, 4: Gallery, 5: Galena, chalcopyrite, and quartz vein 6: Spoil pile. G1, G2, and G3 represent the...pyrite, and tetrahedrite-tennantite serie minerals. Quartz occurs as a gangue minerals. Covellite, chalcocite |  | | Journal (article/letter/editorial) | | the sulfide liquid and partially surrounded by quartz, plagioclase, and amphibole, an assemblage representing...chalcopyrite-rich ores. Such zoning has been described from the North Range deposits at Sudbury (Li et al., 1992; Naldrett...bleb-bearing dike adapted from Hartmann et al. (2001). Quarry site is at 56°40'01" W and 34°09'06" S. east (Hartmann...were collected from this dike in a quarry that lies to the north of Montevideo at 56°40'01"W and 34°09'06"S...tremolite-ferroactinolite, alkali feldspar, and quartz. The primary igneous silicate minerals are very |  | | Catalog/List | | cloudy sea-green crystals to 1" in size embedded in Quartz with silvery ~rsenopyrite. Fluoresces mustard yellow...£2. 4. N"TIVE .I.RSENIC. Schneeberg, Saxony, Germany. Grey shelly solid mass with minor Calcite and...BROCHnNTITE. Bisbee, C:>n hise CJ., . iZJn'l, u.s •..• Ebel'1 green needly cryst'lls inter'r).m with min:>r...t cryst81s pJrti111y embed(.ed in Fluorite and Quartz on TJuro31ine peach ,einstonc. Jld 13 bel is at...bright blackish mJdificd ryst11s encrustin cellular Quartz/Chl.orite matrix. 2xlt". £3. 20. C.'SSITERITE |  | | Journal (issue) | | won a specimen of microcline feldspar and smoky quartz crystals on a graphic granite matrix collected...be another great evening as we are joined by John Ebel, Director of the Weston Observatory at Boston College...east to Effingham on the Maine border, and as far north as Campton. According to the USGS, there were 14...the Weston Observatory at Boston College Dr. John Ebel said New Hampshire is among one of the more active...was 2.6, but the revised magnitude was 2.5," said Ebel. "That's a small earthquake and should not have |  | | Journal (article/letter/editorial) | | Geophysik, Bereich Mikroanalytik, D–44780 Bochum, Germany Abstract Pallancata is a world-class intermediate-sulfidation...and secondary FI in the earlier, coarser, stage-2 quartz, corresponding respectively to pre- and syn-main-stage...also commonly shows broken crystals of bipyramidal quartz and euhedral biotite. Thin coal seams are locally...mineralization. There is, however, a small outcrop of a quartz monzonite dome to the south of the Pallancata vein...includes wallrock (volcanic) and vein fragments (quartz and chalcedony with pyrite) embedded in a very |  | | Journal (article/letter/editorial) | | Club reports collecting sphalerite north of Wiarton, at the Ebel Quarry, and at Cragleith. There are collecting...Pitts at Oakwood, Maryland, and the Cedar Hill Quarry in the same general area in nearby Pennsylvania...water washed quartz, some of which is clear enough to facet. The Keystone Trap Rock Quarry at Cornog, Pennsylvania...crystals, chalcopyrite, fluorescent calcite, blue quartz, garnet and other associated minerals. New Jersey...Pennsylvania for quartz crystals; for serpentine at Lake Valhalla; to the Summit Quarry of the Houdaille |  | | Journal (article/letter/editorial) | | mining district in central Yukon, Canada (~400 km north of Whitehorse, Yukon) has been a signi cant source...of Keno Hill uids contained as inclusions in quartz and siderite (Lynch et al., 1990), particularly...temperatures, quartz exhibits retrograde solubilities below ~900 bar (Kennedy, 1950) so the quartz uidinclusion...miscibility gaps in such fahlores (Sack, 1992; Sack and Ebel, 1993). Experimental Samples The most Ag-rich samples...elements: fahlore (Cu10Zn 2As4 S13, Cu10Fe2As4S13, Ebel, 1993), galena (PbS, Sack et al., 2002), sphalerite |  | | Journal (article/letter/editorial) | | are to be found in mineral belts both immediately north and south of the Osburn fault, a major right-lateral...incompatibility between As and Ag in the fahlore structure (Ebel and Sack, 1989, 1991; Sack, 1992) that could account...consist primarily of tetrahedrite fahlore, siderite, quartz, pyrite, bournonite, galena and occasional chalcopyrite...13 , Eb el, 1993), bournonite (CuPbSbS3, Sack and Ebel, 1993); matildite (AgBiS2, Ghosal and Sack, 1999)...increasing brightness from black gangue minerals (quartz, carbonate, baryte), pyr (pyrite), sph, fah, bno |  | | Journal (issue) | | African Republic 8 Darfur Province and eastern Chad 9 North Kordofan, Darfur, and Northern Provin<:(� 11 Jebel...Regional considerations of the Basement Complex of north-cast Africa Regional structural pattern 21 Regional...-Sea Province 36 Strongly jointed basaltic plug north of' Kerma, n<.�ar Fareig, Northern Province 39 Gebeit...FIGlJRES 1 2 3 4 5 6 7 8 9 10 11 12 Rainfall in north-east Africa 4 State of geological mapping for Sudan...fracture lineaments in north-east Sudan 44 Undergrour1d water contours for north-cast Africa 55 5 6 7 |  | Zeng, N., Izawa, E., Motomura, Y., Lai, L. (2000) Silver Minerals and Paragenesis in the Kangjiawan Pb-Zn-Ag-Au Deposit Of the Shuikoushan Mineral District, Hunan Province, China. The Canadian Mineralogist, 38 (1) 11-22 doi:10.2113/gscanmin.38.1.11 | Journal (article/letter/editorial) | | asite + pyrargyrite, and to pyrargyrite in the north. Keywords: silver minerals, tetrahedrite, freibergite...silver sulfosalts and electrum, associated with quartz and calcite. The grade of the ore Geological map...X-ray diffractometer (XRD) with a Cu target and quartz as an internal standard. The 220 and 440 reflections...freezing and homogenization of fluid inclusions in quartz were obtained with a Linkam–600PM heating–cooling...silver sulfosalts and electrum. Gangue minerals are quartz, calcite, and small amounts of white mica and chlorite |  | | Journal (article/letter/editorial) | | chrysotile, 729 AUDIBERT, N., cordierite-K-feldspar-quartz-orthopyroxene symplectite from S. Algeria, 354...pyrite, 55 DELLAVENTURA,G., 315 Dendrites, Bi-Ni-Co quartz vein, 241 DERIU, A., 671 Destabilisation, and diffusion...eclogitic amphibolites and mica schists from, 189 EBEL, D.S., 635 Edingtonite, from Shropshire, 349 ELTON...from Buckbarrow Beck, 754;--, Shropshire, Squilver Quarry, edingtonite from, 349 Eosphorite, new structural...and bournoniteseligmannite solid solutions, 635 GERMANY, siderite mineralisation of the Rhenish MassiJ; |  | | Journal (article/letter/editorial) | | a case study from the Ramsbeck Pb-Zn deposit, Germany Received: 24 July 2000 / Accepted: 10 May 2001...hydrothermal Pb-Zn vein systems of the Ramsbeck deposit, Germany, have been extensively overprinted by late-stage...UniversitaÈt WuÈrzburg, Am Hubland, 97074 WuÈrzburg, Germany E-mail: thomas.wagner@mail.uni-wuerzburg.de A.J...syntectonic Pb-Zn veins as well as shear zone hosted quartz-Au veins are commonly subjected to ¯uid-assisted...syntectonic Pb-Zn veins of 671 the Ramsbeck deposit, Germany. During the late-state retrograde evolution of |  | | Journal (article/letter/editorial) | | and Tsepin, 1983; Spirodonov and Okrugin, 1985; Ebel and Sack, 1989; Sack et al., 2005) and to preserve...sulfosalts summarized by Sack (2000, 2005) and Sack and Ebel (2006). We have, however, modified the estimates...face-centered cubic (fcc)-(Ag, Cu)2S solid solution of Ebel (1993) and Sack (2000) and the calorimetric constraints...relations of variable reliability (cf. Sack and Ebel, 2006). Of these models, those for fahlore (Sack...Ag-Cu exchange data for (Ag, Cu)2S and fahlore (Ebel, 1993; Sack, 2000) and the fahlore activity-composition |  | | Journal (article/letter/editorial) | | ....................5192 Diaplectic Glasses of Quartz and Plagioclase Feldspar in Impact Breccias from...Pervasive, Highly Local Heating by Current Sheets D. S. Ebel , A. Hubbard , C. McNally , M-M. Mac Low , J. Oishi...of the Sutter's Mill CM Chondrite Breccia D. S. Ebel , Q-Z. Yin , J. M. Friedrich , P. Jenniskens , M...Sutter's Mill Chondrites J. M. Friedrich , D. S. Ebel , and P. Jenniskens ........................................................................5263 North-American Microtektites are More Oxidised than Tektites |  | | Journal (article/letter/editorial) | | by most of the recently active mines, and gold-quartz veins currently being evaluated and mined by the...Supergroup, and is found in mineral belts immediately north and south of a major right-lateral, strike-slip...in Sack et al. (1987), Sack (1992), and Sack and Ebel (1993); Ag/(Ag + Cu) and As/(As + Sb) ratios of...siderite-fahlore veins crosscut pre-existing galena-quartz veins in the Galena Mine and are, thus, younger...1985; Förster et al. 1987; Mozgova et al. 1987; Ebel and Sack 1989; Sack 1992) and to preserve the concept |  | | Report (issue) | | Norumbega fault zone .......... 060 ccc eee 195 John E. Ebel and James A. Spotila Preface INTRODUCTION Early...lithotectonic terranes in mid-coastal Maine just north of Penobscot Bay. The name Norumbega came from a...transcurrent (sinistral) suture between ancestral North American rocks to the Figure 2. Comparison of the...megascale granitoids. Hubbard and Wang examine quartz microfabrics in sheared rocks from a traverse along...restraining bend geome- x Preface Ayuso; Hubbard; Ebel and Spotila Ludman et al. Ludman and Gibbons Swanson |  | | Journal (article/letter/editorial) | | Shatter Cone Surfaces from the Steinheim Basin, SW Germany E. Buchner and M. Schmieder .....................on Chathodoluminesence of Experimentally Shocked Quartz Y. Chang, M. Kayama, E. Tajika, Y. Sekine, T. Sekine...E. J. Crapster-Pregont, W. H. Towbin, and D. S. Ebel ..................................................Diversity of CO and Ordinary Chondrite Inclusions D. S. Ebel, E. J. Crapster-Pregont, and A. Lobo .............-M. Mac Low, C. P. McNally, A. Hubbard, and D. S. Ebel ............................................... |  | | Journal (article/letter/editorial) | | behaviour Jens Barosch, Dominik C. Hezel, Denton S. Ebel, Pia Friend PII: DOI: Reference: S0016-7037(19)30031-6...cite this article as: Barosch, J., Hezel, D.C., Ebel, D.S., Friend, P., Mineralogically zoned chondrules...and Mineralogy, Zülpicher Str. 49b, 50674 Köln, Germany 2 Natural History Museum, Department of Mineralogy...Natural Sciences, Gaußstraße 20, 42119 Wuppertal, Germany *corresponding author: jbarosch@uni-koeln.de ... as has been demonstrated by e.g. Hezel (2007), Ebel et al. (2009) and Hezel and Kießwetter (2010). Thus |  | | Journal (article/letter/editorial) | | Universität Köln, Zülpicher Straße 49b, D-50649 Köln, Germany 2 Tokyo Institute of Technology, Department of...(Larimer and Anders, 1967; Grossman, 1972; Ebel, 2000; Ebel and Grossman, 2000). Such forsterites should...O-isotope fractionation data of Zheng (1991, 1993, quartz-mineral), at 1000°C, forsterite should be ⬇1‰ higher...Grossman (1972), Yoneda and Grossman (1995) and Ebel and Grossman (2000) show that at a solar dust/gas...melts become stable (Yoneda and Grossman, 1995; Ebel and Grossman, 2000). Yoneda and Grossman (1995) |
|
