 | | Report (issue) | | Mesters Vig, East Greenland In 1948, galena-bearing quartz veins were discovered on the west coast of Mesters...bituminous shale and a variegated clastic unit. Lower Triassic silty shales overlie the Upper Permian...some 300 km2 in the Mesters Vig area. Two major vein zones are associated with the border faults of the...graben. The Sortebjerg-Blyklippen vein zone forms a discontinuous vein system 15 km long along the western...Sortebjerg, five outcrops occur over a distance of 4 km, each being a silicified, quartz-vein zone orientated |  | | Journal (article/letter/editorial) | | E–W with a dip of 25uS. The ore-bearing quartz vein outcrops are slightly limonitized and hematitized...galena, sphalerite, tetrahedrite, and secondary limonite veinlets in addition to pyrite. Quartz and calcite...isotope data suggest that the Akgüney Cu–Pb–Zn vein-type deposits were formed by the leaching of metals...located near to Akgüney Village in the Kabadüz District of Ordu Province within the Eastern Pontide region...units are classified as follows: Lower Basic Series (Liassic to Lower Cretaceous), Dacitic Series (Upper |  | | Journal (article/letter/editorial) | | also intruded within the shear zone. The gold-rich quartz veins are located within the ultramylonitic western...of the shear zone. These N-S-trending laminated quartz veins formed during the late increments of shearing...(pyrite, galena, native gold, sphalerite) crystallized in the deformed quartz matrix along late shear planes...planes. Undeformed E - W trending banded quartz veins are present in the mylonitic eastern part of the...development (along the walls of the N-S gold-bearing quartz veins) of a 5-m-wide carbonate-sericite-albite-pyrite |  | | Book (volume) | | also quarried a rough, porous flintstone from outcrops, especially around McArthur, Vinton Co., for making...(fluorescent), , Galena, Marcasite, Pyrite, Selenite and Sphalerite. A few alluvial Diamonds have been found. ASHTABULA...flint, jasp-agate, jasper, Smoky Quartz 337 Ohio crystals, clear Quartz. From Brownsville, Licking Co...and beds⎯gem flint, translucent chalcedony, drusy quartz. LUCAS COUNTY SYLVANIA, SW, at jct. of Brint St...jasperlike flint, jasp-agate, jasper, Smoky Quartz crystals, clear Quartz.. ZANESVILLE, area mined deposits⎯Hematite |  | | Book (volume) | | also quarried a rough, porous flintstone from outcrops, especially around McArthur, Vinton Co., for making...(fluorescent), , Galena, Marcasite, Pyrite, Selenite and Sphalerite. A few alluvial Diamonds have been found. ASHTABULA...flint, jasp-agate, jasper, Smoky Quartz 337 Ohio crystals, clear Quartz. From Brownsville, Licking Co...and beds⎯gem flint, translucent chalcedony, drusy quartz. LUCAS COUNTY SYLVANIA, SW, at jct. of Brint St...jasperlike flint, jasp-agate, jasper, Smoky Quartz crystals, clear Quartz.. ZANESVILLE, area mined deposits⎯Hematite |  | Smith, C.W., Samater, R.M., Hussain, M.A., Basheer, M.A., Trent, V.A., Cole, J.C. (1985) Preliminary report on the gold deposits at Al Habla, Kingdom of Saudi Arabia. Open-File Report Vol. 1985 (85-128) US Geological Survey doi:10.3133/ofr85128 | Report (issue) | | worked gold-bearing quartz veins. Most of the workings are trenches following vein systems, which ordinarily...of ancient workings in the area. Only isolated outcrops of veins are exposed, and in most places they...known vein systems are covered by a veneer of alluvium. Detailed, methodical sampling of quartz from all...not reach the bottoms of the more intensely mined vein systems. Fractures in granite that allowed for the...sites of gold and quartz deposition and in most of the area dikes and gold-bearing quartz veins are found |  | Niroomand, Shojaeddin, Hassanzadeh, Jamshid, Tajeddin, Hossein Ali, Asadi, Sina (2018) Hydrothermal evolution and isotope studies of the Baghu intrusion-related gold deposit, Semnan province, north-central Iran. Ore Geology Reviews, 95. 1028-1048 doi:10.1016/j.oregeorev.2018.01.015 | Journal (article/letter/editorial) | | Mineralization is in the form of subparallel sheeted quartz veins that are up to ~1 km long within extensional...characterized by potassic alteration (stage-I veins): quartz+adularia+biotite+ pyrite+chalcopyrite+native gold...alteration (stage-II veins): quartz+sericite+pyrite+chalcopyrite+bornite+sphalerite+native gold (average 1...Systematic studies of fluid inclusions in the stage-II quartz samples found five types: monophase aqueous (I–type);...About 70 selected samples were taken from several outcrops from the ore-bearing hypabyssal plutons, volcanic |  | | Book (volume) | | landsvertebrate fossil remains; Pine Ridge, areaQuartz concretions, agates, petrified wood, fossils, etc...quarriesCalcite, Quartz crystals; SE 3 mi., quarry on E bank of the Blue R.geodes (lined with Quartz or rare...tapped and untapped sources for gems and gemstones: quartz family minerals, pegmatite crystals, Turquoise...interesting gangue minerals, Marcasite, Pyrite, Quartz and the usual assortment of associated minerals...E of Fallon): area mines with veins in broken Quartz and TalcGold, Lead and Silver minerals; NE, |  | | Report (issue) | | ........ .. Pegmatitic quartz veins .... .. ......... ... ....... ... Quartz veins ... ... .. .........and stock-work deposits ..... .. ... .. .. . Gold-quartz veins ..... .. ....... .. .. .... .. .. Veins of......... .... ..... .... .... .... ... . Kenora district (Patricia portion) .... ... .... . Red Lake area... .. .. .. .... .. .... .. ...... ... . Kenora district...................... .... .. ............. ..... .. ... .... .. .. .. .. .. .... Rainy River district..... .. ..... .... ..... .. ........ . .. ... |  | | Report (volume) | | ___ Granodiorite, quartz monzonite, and quartz diorite Leucocratic (white) quartz monzonite ______ ___...group ________ Browns Creek prospect ____ _ Money quartz prospect ____________ China Basin _____________________...82 91 91 96 96 98 99 99 100 101 101 102 Massive quartz deposit _______________1_____ Alphabet group _...Photograph showing prospect bench in massive quartz vein, Basin claims ____________________ 46 15. ...has been produced from high-grade pockets in a quartz vein at the Little Queens mine. Other pockets of high |  | | Report (issue) | | . . . . . . . . . . . . . 259 xii 3.36 ROSE QUARTZ CLAIM(?) (Site No. JV-41) . . . . . . . . . . ...3.1-21. Looking northwest at the grass-covered lower tailings impoundment at the Silver Rock Mine (Roll...Open stopes to the south of the shaft along the vein at the Golden Crown Mine (Roll 00K7, frame #15).... . . . . . . 206 Figure 3.28-9. Sketch of the lower workings at the Overall Mine. . . . . . . . . .... . . . . . . 225 Figure 3.30-3. Thick white quartz vein just north of the caved shaft(?) at the Last |  | | Journal (volume) | | Olaf P. C. A. Logan, District Mining Engineer C. McK. Laizure, District W. Burling Tucker, Reid...Engineer District Mining Engineer Sampson, Assistant District Engineer Chas. V. Averill, District Mining...Francisco - San Francisco TABLE OF CONTENTS Page DISTRICT REPORTS OP MINING ENGINEERS Redding Field Division...EMPLOYMENT SERVICE PUBLICATIONS 7 91 91 Gold Quartz Deposits ADMINISTRATIVE MINERALS AND STATISTICS...possibilities, and developments). REPORTS OF DISTRICT MINING ENGINEERS In 1919-1920 the Mining Bureau |  | | Journal (volume) | | Geologist C. A. Logan, District Mining Engineer C. McK. Laizure, District W. Burling Tucker, Reid...Francisco - District Sampson, Assistant Mining Engineer District Engineer Chas. V. Averill, District Mining...Francisco San Francisco TABLE OF CONTENTS REPORTS OF DISTRICT MINING ENGINEERS Page 1 Sacramento Field Division...mining activities of the State, prepared by the district mining engineers are given. Special articles dealing...possibilities, and developments). REPORTS OF DISTRICT MINING ENGINEERS In 1919-1920 the Mining Bureau |  | | Report (issue) | | m' DEPOSITS ___ _ A 19-34 ______________ _ 19 Vein Deposits _________ ---- ________ ----- ____________________...Frontispiece II Fig. 1-Gold Crystals Associated with Quartz Crystals, Loud Gold Mine, White County, Georgia___...80 Fig. 2-Auriferous Quartz Stringers in Partially Decomposed Rock, East, or Lower, Cut, Findley Gold Mine...Deposits of Georgia Preliminary Map of Dahlonega District, Geergia_________ 36 276 Gold Deposits of Georgia...through large open cuts into mills situated .at lower levels. The depth to which the deposits could be |  | | Journal (volume) | | Nevada Mining at Bingham, Utah The Greenwater District Ditto Ditto Ditto Abyssinia, Minerals In The...Charles [64 James W. 82 431 114 Nelll 815 District, British W Columbia, The 783 431 795 736 241...Tube-Mill Lining Forbes Rlckard 511 17 The Boundary District The Mineral Output of. In 1906 Broken Hill, Acid...Editorial Wm. Amalgamation of Copper Ore Pan Amalle District of California, The American Copper Spiral Pipe...E. California, Alluvial Mining In The Amalle District of 785, 818 The Ancient River Channels of 567 |
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Quartz vein outcrops, Altenmarkt, Yspertal, Melk District, Lower Austria, Austria