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| gemgypsy@bellsouth.net JULY–AUGUST 2019 Articles The Auglaize quarry, Paulding County, Ohio ..........................431 . by J. Grandjean Faden quartz from Bierghes, Brabant, Belgium .......................................calcite crystals on matrix, 5.5 cm, from the Auglaize quarry, Paulding County, Ohio. Joe and Susan Kielbaso...May–June, 2019 What’s New 49-3 397 T he Auglaize Quarry Paulding County, Ohio John Medici 5280 Stover Road...Ohio 45504 kbladh@wittenberg.edu The Auglaize quarry has been a popular mineral collecting site for |
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| hydrothermally altered quartz diorites (Brabant Massif, Belgium) and the role of epidote as a Sr filter Lue Andr~ and...1050 Brussels, Belgium Abstract. The porphyritic quartz diorites of the Caledonian Brabant Massif have...alterations. Sr electron microprobe analyses of epidote were also carried out to assess its role in the...of Sr accommodation in the secondary minerals. Epidote in particular has proved to be the main trap for...factor of S7Sr hydrothermal contamination. The epidote-poor rocks (albite+chlorite-rich rocks) seem to |
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| structure to portions of~/gte. 2, On t]~e PORPHYRYof BELGIUM. By Professor DELESSE, Engineer of Mines, &c. [Communicatedby...President.] THE constituent feldspath of this porphyry occurs in maekled and finely striated crystals...The constituent feldspath, therefore, of this porphyry is oligoelase. This oligoclase, as in all porphyries...green portions from a fragment of the Quenast porphyry,. I found that their loss by fire was 5 " 2 9...very frequently met with in the paste of t'his porphyry. M. Drapiert has observed it in dihexa~dral crystals |
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| concrete that could not have ongl.nated In France or Belgium. Rucks were collected from Vimy Ridge and ~n. the...especially copper from Belgium to Germany, of sand and gravel from Germany to Belgium of possible use as...navi~ation ?n the wat~rs lying between the Rhine and Belgium, WIth the special regulations respecting navigation...felsite Dark green andesite lava Banded hornblende-epidote-gneiss Radiolarian black chert Soft red sandstone...Society); and an appreciation of the gravels of Belgium was provided by Professor X. Stainier, Professor |
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| Roldán & M. G. Maldonado 5 Earth sciences in Walloon archaeology: Four examples of co-operation O. Collette...provenances of lithic materials during Roman times in Belgium: a fruitful collaboration between geologists and...Vynckier, Flanders Heritage Agency, Brussels, Belgium. Mosaic, Roman house, Hondsstraat Tongeren. © Copyright...Géologique de Belgique Rue Jenner 13 B-1000 Bruxelles, Belgium Tel: +32 2 7887636 info.efg@eurogeologists.eu www... Topical - Geoarchaeology Earth sciences in Walloon archaeology: Four examples of co-operation O. Collette* |
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| Leith Harbour (105&), and at Shackleton Harbour, Brabant Island (93c). The most typical rock of this group...cent. 29"0 2 3 45'7 10"4 6"3 6'3 The rock from Brabant Island (93c) is similar in most respects to the...hornblende crystals. A. porphyry belonging to this group comes from Shackleton Harbour, Brabant Island (91a). It...containing decomposed felspars and shreds of chlorite. Epidote is abundant and associated with chlorite in what...psuedomorphs after hornblende. This rock is a to?ialite-porphyry. A rock from Hovgaard Island belonging to this |
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| native gold formed in intimate association with epidote > chlorite-quartz-calcite and in the interstices...within the skarns are generally lower than for porphyry Au-Cu deposits at Cadia, particularly the high...other oxidized Fe-Cu-Au skarns associated with porphyry deposits. Iron skarn at Big Cadia occurs several...of a mineralized intrusion of quartz monzonite porphyry. Magmatic-dominated fluids reacted with carbonate...interval from the intrusive contact, located at Cadia Quarry, toward more distal environments at Big Cadia. |
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| significance and implications for the genesis of alkalic porphyry gold–copper deposits Received: 20 December 2004...2006 # Springer-Verlag 2006 Abstract The alkalic porphyry gold–copper deposits of the Cadia district occur... The district comprises four porphyry deposits (Ridgeway, Cadia Quarry, Cadia Hill, and Cadia East) and...largest known alkalic porphyry district, in terms of contained gold. Porphyry gold–copper ore at Cadia...quartz–sulfide– (carbonate) vein systems. The Cadia porphyry deposits are characterized by cores of potassic |
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| Almandite Apatite Asbestus Autunite Chabazite Chlorite Epidote Fluorite Labradorite Lignite Magnetite sand Masonite...Bristol Ferry N. of Iight E. of light MrxBnlls Epidote Hornblende Muscovite Orthoclase Quartz Rutile Same...Bennett Hilla 2 mi. S. W. MrNnner.s FouNo Chlorite Epidote REMARKS In large plates Fair sized crystals,near...above. Pyrrhotite Actinolite Apatite Biotite Epidote Garnet Magnetite Scapolite Along Moosup River...granite porphyry of the East Greenwich group.6 The best mineral localities are in this porphyry and are |
 | Cooke, D. R., Wilson, A. J., House, M. J., Wolfe, R. C., Walshe, J. L., Lickfold, V., Crawford, A. J. (2007) Alkalic porphyry Au – Cu and associated mineral deposits of the Ordovician to Early Silurian Macquarie Arc, New South Wales. Australian Journal of Earth Sciences, 54 (2) 445-463 doi:10.1080/08120090601146771 | Journal (article/letter/editorial) |
| http://www.tandfonline.com/loi/taje20 Alkalic porphyry Au – Cu and associated mineral deposits of the..., V. Lickfold & A. J. Crawford (2007) Alkalic porphyry Au – Cu and associated mineral deposits of the...Earth Sciences (2007) 54, (445 – 463) Alkalic porphyry Au – Cu and associated mineral deposits of the...22:53 24 November 2014 2 Twenty-one alkalic porphyry deposits of Late Ordovician to Early Silurian...districts were centred in and around quartz monzonite porphyry complexes that intruded the volcanic centres. |
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| working hypothesis is to regard the original granite porphyry as homogeneous. The central point of contention...hydrothermally altered quartz diorites (Brabant Massif, Belgium) and the role of epidote as an Sr filter. Contrib Mineral |
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| lower, Chino Quarry limestone, (2) Overlying qtartzite and schist beds, called the Chino Quarry quartzite...quartzite, (3) The upper, or Sky Blue Quarry limestone. Granodiorite and quartz monzonite intrusions separatethese...The Chino Quarry Limestone. This limestone, the best exposure of which is in the Chino quarry, is lvhite...considerablygreater. The Chino Quarry Quartzite. The structural relations between the Chino Quarry quaftzite and the...the Chino Quarry limestone is not precise.They are in part separatedby a sill-like intrusion of granodiorite |
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| schist........................................ 14 Epidote-chlorite schist.......................................... 19 Inclusion of limestone in granite porphyry................. 21 Harris bed at Lime Rock .................................... 22 Dexter quarry............................................ 24 Beds...inclosed Cambrian schists at the Saylesville granite quarry .........:......................... 31 Contact......... Granite porphyry............... J....................'.... Eiebeckite porphyry............... |
 | Holliday, John, Wilson, Alan, Blevin, Philip, Tedder, Ian, Dunham, Paul, Pfitzner, Michael (2002) Porphyry gold-copper mineralisation in the Cadia district, eastern Lachlan Fold Belt, New South Wales, and its relationship to shoshonitic magmatism. Mineralium Deposita, 37 (1) 100-116 doi:10.1007/s00126-001-0233-8 | Journal (article/letter/editorial) |
| J. Tedder Æ Paul D. Dunham Æ Michael Pfitzner Porphyry gold–copper mineralisation in the Cadia district...2001 Springer-Verlag 2001 Abstract The Cadia porphyry gold–copper district is the largest hydrothermal...principal porphyry deposits (Cadia Hill, Cadia Ridgeway, Cadia East/Cadia Far East and Cadia Quarry) as sheeted...skarn (Big Cadia and Little Cadia). All of the porphyry deposits show a close spatial association with...in P2O5 and Ce (LREE). Dacitic and hornblende porphyry intrusions from within the district, but spatially |
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| of — Withamite. : Alumina : Lime : Silica EPIDOTE : : : { : { See Bitumen . 37.27 26:52 23...WEISSIGITE ( a) Alumina Water WITHAMITE. See Epidote. 22:36 77.64 Carbonic acid { : WITHERITE WOLFRAM...Barrow .) Blende. ( Huel Basset.) Slate, with Porphyry Dykes. Argentite. Copper. Cuprite. Malachite ...Clarence .) Smaltine. ( Huel Coates.) Slate and Porphyry. Tin . Ag nesite. Bismuthochre. Cassiterite. Felspar... Orthoclase . (Huel Devonshire.) Slate, with Porphyry Dykes. > 97 Fluor. Pyrite. Towanite. (Huel |
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| chemical change in the iron. Mr. Van Esbroeck of Belgium, a visitor, made some interesting comparisons with... Wherry and R. W. G. Wyckhofi, took part. At a quarry in Leesburg a vein of datolite cut the Crystallized...At Shear planes carry prehnite, Goose Creek the quarry is cut by a diabase sill. apophyllite, laumontite...material and carry albite, byssolite, green pyroxene' epidote and titanite. collected is now under investigation...a very pure wollastonite sometimes stained by epidote' The green stained fibrous material is the only |
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| ridge. " saddle " mass of quartz-porphyry, dykes of quartz-porphyry and aplogranite, and a plexus of...north is the Stanner " saddle " mass of quartz-porphyry, and to the north of this are two parallel acid...boundary of the Stanner " saddle " mass of quartz-porphyry. These faults are also well seen at the south-west...intrusion of the Hanter type granophyric quartz-porphyry. Across the upper slope of Hanter Hill the fault...plagioclase in association with abundant epidote. The epidote is normally of granular habit and disseminated |
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| 1941 Vol. 26 No.6 SECTION ACROSS COMMERCIAL QUARRY, CRESTMORE, CALIFORNIA A. O. Wooononl, R. A. CnreroN...Monzonite Porphyry. Mixed Rock.... Pegmatite. Contact Rocks Commercial Quarry Profile Wet Weather Quarry Profile...356 356 .tJo 358 358 359 360 364 365 Lone Star Quarry 370 375 377 Notes on Individual Minerals New...the limestone with intrusive quartz monzonite porphyry and pegmatites. The number of named minerals found...commercial quarry, supplemented by a corresponding section in the adjacent Wet Weather quarry' 351 3s2 |
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| was used to document rock outcrops in the surface quarry Lehôtka pod Brehmi, Slovakia [16]. Mapping the...thematic information in an active calcareous sandstone quarry located in central Catalonia, Spain [18]. A combination...obtain more efficient ground surveys in the Naundorf quarry in the Freiberg mining district, Saxony (Germany)...the stability of artificial slopes of the Laže 1 quarry in Slovenia [23]. Topographic modeling and structural...structural geological mapping of a limestone quarry were accomplished using UAVs in combination with terrestrial |
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| Ridgeway Gold-Copper Deposit: A High-Grade Alkalic Porphyry Deposit in the Lachlan Fold Belt, New South Wales...Abstract Ridgeway is a high-grade gold-copper porphyry deposit (54 Mt at 2.5 g/t Au and 0.77% Cu), related...a cluster of four Late Ordovician gold-copper porphyry deposits and two iron-copper-gold skarn deposits...hydrothermal conditions. Introduction GOLD-RICH porphyry copper deposits have been an attractive exploration...Perelló et al., 2001). Many of these gold-rich porphyry deposits are associated with intrusions of high-K |
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| crystals of iron oxides (ilmenite). A few crystals of epidote have been formed. No hornblende is to be found...exactly like that of Bwlch Mawr, while in the same quarry it assumes sometimes quite a different colour and...depolarizes feebly; with it are mixed up numerous epidote particles; these may be inferred to be the remains...microcline. Fhe rock may be classed as granite-porphyry. Girn Ddu, summit [Cl. 47], Sedgwick Collection...and unrecognizable, while chloritic matter and epidote, scattered abundantly through the ground, may also |
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| monzonite porphyry ................................................................. 13 Latite porphyry ................................................. 58 Quarry Peak rhyolite complex ....................................... 68 Steins Mountain quartz latite porphyry ........................................... 69........................................... 26 8. Quarry Peak rhyolite ...................................and breccia, which are characterized by abundant epidote, and a younger sequence of mostly rhyolitic rock |
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| forms at the same time as zoisite alteration. An epidote–calcite alteration post-dates all other alteration... Areas affected by epidote–calcite alteration have a brittle fabric. The epidote–calcite alteration is...cannibalism in the genesis of the Coroccohuayco porphyry-skarn deposit, Peru Cyril Chelle-Michou* and Massimo...endowment of porphyry copper deposits (e.g. Wilkinson 2013). However, the common association of porphyry deposits...may be a first-order control on the genesis of porphyry deposits (Chiaradia 2014). The magmatic suite |
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| Road London EC1 R 5DU No. 78 Exploration for porphyry-style copper mineralisation near Llandeloy, southwest...Reconnaissance Programme Report No. 78 Exploration for porphyry-style copper mineralisation near Llandeloy, southwest...in the Northumberland Trough 78 Exploration for porphyry-style copper mineralisation near Llandeloy, southwest...Cooper, D. C., and others. 1985. Exploration for porphyry-style copper mineralisation near Llandeloy, southwest...Analyses of sedimentary rock samples from Middle Mill quarry Summ!ll'y of analytical results for drainage samples |
 | Davison, E.H., Dines, H.G., Leese, C.E., Owen, D.E. (1938) Easter field meeting, 14th–21st April, 1938, Cornwall. Proceedings of the Geologists' Association, 49 (4) 385-391 doi:10.1016/s0016-7878(38)80003-1 | Journal (article/letter/editorial) |
| district, were given close attention in Hodge's Ground Quarry. On the steep valley slop es dropping to the park...sampled. An older exposur e y ielded axinite, epidote and zoisit e. On the return to Tintagel only a...recently found fossils, some unidentified. The quarry and the methods of working having been described...the quartz porphyry intrusion which runs from the granite to the coast was seen at Pitt Quarry, Treforda...Valley, where Mr. A. Oliver showed his Helsbury Quarry, Michaelstow, in tough epidorite and fired a special |
