 | | Journal (article/letter/editorial) | | J. P. Mil6si 1 BRGM, and 2 CNRS-CSCM, Orleans, France With 10 Figures Received November 13, 1991; accepted...eastern vetas of Layo appears to have preceded an "adularia-sericite" epithermal mineralization expressed...min~ralisation de type "acide-sulfate" des vetas orientales de Layo pr6c~derait celles de type "adulaire-sericite"...the South Peruvian Andes (Fig. 1), is of the "adularia-sericite" type and is broadly contained (the Orcopampa...texture of Vetas 7 and 8: alternating bands of pyrite (Py) and Cu-As-Sn minerals (Cu). Circles indicate Figs |  | | Journal (article/letter/editorial) | | L. Pasteur, 1, rue Blessig, 67084 Strasbourg, France. Geologische Rundschau,72, 1, 105--117, Stuttgart...npoBe~n H3y~eH~I npo~ecc~z CH~HqbH~aUHH,CB~SaHHO~ C py~oH0CTHI~IMH B~HJIaMn. HCCJIe~OBaHHI, Ze ~Hnl, Z...Dreislar (West Germany) and in St Geniez d'Olt (France), the Ca deposit in Brilon (West Germany), the...Bronsse-Broquies and Berthol6ne (France) and the Ba plus Zn, Pb deposit in Gatuzi6res (France). II. Experimental ... Ba dep. K [749A Gatuzihres R 1749B S. eastern France R 1750 75 ~ ~ > ~ M M M M : whole rock |  | Sizaret, S., Marcoux, E., Jebrak, M., Touray, J. C. (2004) The Rossignol Fluorite Vein, Chaillac, France: Multiphase Hydrothermal Activity and Intravein Sedimentation. Economic Geology, 99 (6) 1107-1122 doi:10.2113/gsecongeo.99.6.1107 | Journal (article/letter/editorial) | | 1107–1122 The Rossignol Fluorite Vein, Chaillac, France: Multiphase Hydrothermal Activity and Intravein...Polytechnique de l’Université d’Orléans, 45072 Orléans, France ERIC MARCOUX, Institut des Sciences de la Terre... Bâtiment Géosciences, BP 6759, 45067 Orléans, France MICHEL JÉBRAK, Université du Québec à Montréal...BP 6759, 45067 Orléans, France Abstract The Chaillac deposit of Indre, France, occurs at the contact...characterized by green and purple fluorite, quartz, minor adularia, and minor pyrite. Analysis of intravein sediments |  | Milesi, J. P., Marcoux, E., Nehlig, P., Sunarya, Y., Sukandar, A., Felenc, J. (1994) Cirotan, West Java, Indonesia; a 1.7 Ma hybrid epithermal Au-Ag-Sn-W deposit. Economic Geology, 89 (2) 227-245 doi:10.2113/gsecongeo.89.2.227 | Journal (article/letter/editorial) | | Minidres,BP6009,Avenuede Concyr,45060OrldansCedex2, France Y. SUNARYA, DirektoratSumberdaya Mineral,57, JalanDiponegoro...BP6009, Avenue deConcyr, 45060 Orldans Cedex 2,France Abstract The Cirotangold deposit,datedat 1.7 _...normalfault, hasbeen partly eroded. The depositis of the adularia-sericite type with strongverticalore zoning(Ag/Au...288%K; 28.7% radiogenicAr: Mar- ticsin commonwith adularia-sericite couxandMil(•si,in pressa) datethe depositat...Bandedtextureof the sulfideenvelopes. Cockadebreccia(c). Py = pyritepseudomorphs afterpyrrhotite,Gn = galena |  | Tămaș, Călin Gabriel, Andrii, Mădălina Paula, Kovács, Réka, Drăgușanu, Sergiu, Cauuet, Béatrice (2021) Sphalerite Composition in Low- and Intermediate-Sulfidation Epithermal Ore Bodies from the Roșia Montană Au-Ag Ore Deposit, Apuseni Mountains, Romania. Minerals, 11 (6) 634 doi:10.3390/min11060634 | Journal (article/letter/editorial) | | TRACES-CNRS, 5, A. Machado Street, 31058 Toulouse, France; beatrice.cauuet@univ-tlse2.fr Correspondence:...distinguished in the late 1980s under the names adularia-sericite and acid-sulfate [1] or low- and high-sulfidation...magmatic and hydrothermal quartz, sphalerite, adularia, and apatite [38] revealed the low salinity ranging...gold, Ag-sulfosalts, scarce pyrite, and quartz-adularia gangue; (ii) gold-silver-rich veins with native... 4 of 15 scarce common sulfides, quartz, and adularia; (iii) Ag-Au hydrothermal breccias and veins with |  | Moussa, N., Fouquet, Y., Le Gall, B., Caminiti, A. M., Rolet, J., Bohn, M., Etoubleau, J., Delacourt, C., Jalludin, M. (2012) First evidence of epithermal gold occurrences in the SE Afar Rift, Republic of Djibouti. Mineralium Deposita, 47 (5) 563-576 doi:10.1007/s00126-011-0397-9 | Journal (article/letter/editorial) | | metals and Au; (2) shallow banded chalcedony ± adularia veins related to boiling that contain up to 16...IFREMER, Centre de Brest, BP 70 - 29280 Plouzané, France e-mail: nima.moussa.egueh@ifremer.fr N. Moussa...Océaniques, IUEM, Place N. Copernic, 29280 Plouzané, France N. Moussa : A. M. Caminiti : M. Jalludin IST, Centre...association with bimodal volcanism, the occurrence of adularia and the native Au and electrum in banded chalcedony...such as illite and chlorite are also present. Adularia is disseminated in the quartz veins. Gold concentration |  | Moussa, N., Rouxel, O., Grassineau, N.V., Ponzevera, E., Nonnotte, P., Fouquet, Y., Le Gall, B. (2017) Sulfur and strontium isotopic study of epithermal mineralization: A case study from the SE Afar Rift, Djibouti. Ore Geology Reviews, 81. 358-368 doi:10.1016/j.oregeorev.2016.10.028 | Journal (article/letter/editorial) | | Plouzané, France; 4 UMR 6538 Domaines Océaniques, UBO-IUEM, Place Copernic, 29280, Plouzané, France; 5 ...at the PSO (Pôle Spectrométrie D Océan, Brest, France) following the analytical method described in Craddock...chalcedony ± massive quartz and carbonate veins with adularia (Fig. 3). The Da’asbiyo2 site is characterized...tetradymite, sphalerite, galena and hematite (Fig. 2-C). Adularia is disseminated in quartz veins. Secondary minerals...and goethite). They occur in banded chalcedony ± adularia veins or breccias (Fig. 2-G). Late carbonate veins |  | Saintilan, Nicolas J., Stephens, Michael B., Spikings, Richard, Schneider, Jens, Chiaradia, Massimo, Spangenberg, Jorge E., Ulianov, Alexey, Fontboté, Lluís (2017) Polyphase vein mineralization in the Fennoscandian Shield at Åkerlandet, Järvsand, and Laisvall along the erosional front of the Caledonian orogen, Sweden. Mineralium Deposita, 52 (6) 823-844 doi:10.1007/s00126-016-0698-0 | Journal (article/letter/editorial) | | orogeny (Silurian to Devonian). At Åkerlandet, adularia-quartz deposition was followed by sphalerite ±...calcite. 40Ar-39Ar thermochronology of a single adularia sample did not yield a well-defined plateau age...Vein . Paleoproterozoic . Fennoscandian Shield . Adularia . Sphalerite . Transtensional . Reactivation ...components ( 40 Ar- 39 Ar thermochronology on adularia at Åkerlandet; Sm-Nd geochronology on calcite...preparation for geochemistry; (3) procedures of adularia sample preparation and 40Ar-39Ar thermochronology; |  | Christie, A. B., Simpson, M. P., Brathwaite, R. L., Mauk, J. L., Simmons, S. F. (2007) Epithermal Au-Ag and Related Deposits of the Hauraki Goldfield, Coromandel Volcanic Zone, New Zealand. Economic Geology, 102 (5) 785-816 doi:10.2113/gsecongeo.102.5.785 | Journal (article/letter/editorial) | | and occurrences of lattice textures and vein adularia, indicate that periods of boiling coincided with...or relative abundance of key minerals such as adularia, calcite, and arsenopyrite, the grain size of...Table 1). The deposits are quartz ± calcite ± adularia ± illite type (Simmons et al., 2005; † Corresponding...cri.nz 0361-0128/07/3680/785-32 equivalent to adularia-sericite type of Hayba et al., 1985, and Heald...to Tables 1 and 2. Ar-Ar and K-Ar dates for a = adularia or s = sericite are from Adams et al. (1994), |  | | Journal (article/letter/editorial) | | (1995) MINERALIUM DEPOSITA 9 Springer-Verlag 1995 Adularia in epithermal veins, Queensland: morphology, structural...1993/Accepted: 17 March 1994 Abstract. Four types of adularia (i.e. sub-rhombic, rhombic, tabular and pseudo-acicular)...Further investigation of the structural state of adularia reveals that each group has some specific features...conditions and the thermal history. Sub-rhombic adularia is commonly 2-4 mm in size and subhedral with...84), reflecting slow crystallisation conditions. Adularia of this type, in association with coarse-grained |  | Sykora, Stephanie, Selley, David, Cooke, David R., Harris, Anthony C. (2018) The Structure and Significance of Anhydrite-Bearing Vein Arrays, Lienetz Orebody, Lihir Gold Deposit, Papua New Guinea. Economic Geology, 113 (1) 237-270 doi:10.5382/econgeo.2018.4550 | Journal (article/letter/editorial) | | high-grade (>3 g/t Au), refractory sulfide and adularia alteration zone that represents the ancient epithermal...Lihir largely reside in a near-surface zone of adularia ± illite alteration. This near-neutral pH alteration...Barton, 2000; Simmons et al., 2005). Beneath the adularia alteration zone at Lihir is a broad zone of biotite...high-grade (>3 g/t Au) refractory sulfide and adularia alteration zone, again with broadly subhorizontal...magmatic-hydrothermal stage (~0.9–0.3 Ma) and the sulfide-adularia zone represents a transition to an epithermal |  | Takahashi, Ryohei, Matsueda, Hiroharu, Okrugin, Victor M., Shikazono, Naotatsu, Ono, Shuji, Imai, Akira, Andreeva, Elena D., Watanabe, Koichiro (2013) Ore-forming Ages and Sulfur Isotope Study of Hydrothermal Deposits in Kamchatka, Russia. Resource Geology, 63 (2) 210-223 doi:10.1111/rge.12005 | Journal (article/letter/editorial) | | concentrates of adularia from quartz-adularia veins. For this analysis, the presence of adularia was confirmed...(Na3[Co(NO2)6]). The concentrated portions with adularia were coarsely crushed in a mortar, and sieved...sieved into #48–70 and #70–149 size meshes. The adularia fractions were washed by distilled water and acetone...895 3.453 Adularia 3.547 4.232 Adularia 1.118 1.333 Adularia 0.970 1.157 Adularia 2.215 2...2.642 Adularia 0.010290 0.000577 0.000343 0.002644 K Mineral © 2013 The Authors Resource Geology |  | | Journal (article/letter/editorial) | | formedatrelatively hightemperatures (250øC) andK*/H* ratios(adularia stable), probably relatively slowly. Thelargest...electron(BSE)imagingwere moval, addition of silica and adularia, or illitc. Silicification usedto characterize...Homogenization temperatures of fluidinclusions in quartz, adularia, orpiment, andrealgarprovideestimates of thetemGeologyof...mines,Chimney Creekonthenorth,whichin- wereseenin adularia froinstageIII (seebelow).In minerals cludes theVistaandDiscovery...Nativegoldreported byGroff(1996)in an assemblage containing adularia, quartz,andpyritein theDZ faultmightcorrelate |  | Santos, João Orestes Schneider, Groves, David Ian, Hartmann, Léo Afraneo, Moura, Márcia Abrahão, McNaughton, Neal Jesse (2001) Gold deposits of the Tapajós and Alta Floresta Domains, Tapajós–Parima orogenic belt, Amazon Craton, Brazil. Mineralium Deposita, 36 (3) 278-299 doi:10.1007/s001260100172 | Journal (article/letter/editorial) | | metachert/J MaueÂs Sericite schist/J Gold deposita Py Py Py Py Metallic mineralsc Quatrz vein, stockwork...Dissemination and mas-sive sulphide (30% py) Py, (cpy) po, apy, bn Py, cpy, gn, Feld, ser, (car) Au (Cu...feld Ser, chl Alb, car, ser Py, cpy, gn, sl, bn Ser, epid Ser Py Py Py (Gn, sl, apy) Ser, chl, car...car Au (Cu) Ser, chl, car Py, cpy, bn Au (Cu) Au (Cu) Au (Cu) Au Au Au (Cu) Au Au Au Geochemical... Chl, ser Alterationd Py, cpy Py, cpy Py, cpy Py Quartz veinlets and Py quartz-kaolinite stockwork |  | Poblete, J. A., Bissig, T., Mortensen, J. K., Gabites, J., Friedman, R., Rodriguez, M. (2014) The Cerro Bayo District, Chilean Patagonia: Late Jurassic to Cretaceous Magmatism and Protracted History of Epithermal Ag-Au Mineralization. Economic Geology, 109 (2) 487-502 doi:10.2113/econgeo.109.2.487 | Journal (article/letter/editorial) | | extent, in breccias, which, on the basis of new adularia 40Ar/39Ar ages, were emplaced in three main episodes:...of veins using 40Ar/39Ar geochronology on vein adularia, thereby eliminating the possibility of mixing...deposits have been dated by 40Ar/39Ar on vein adularia and biotite, respectively. Analytical methods...disturbance of the Adularia Adularia Adularia Adularia Adularia Adularia Adularia 4838088 4838028 4837795...39Ar 40Ar / 39Ar 40Ar 40Ar Adularia Adularia Adularia Adularia Adularia Sericite Whole rock 4837632 |  | Cathelineau, Michel, Fourcade, Serge, Varlet, Michel, Marignac, Christian, Vallance, Jean, Boiron, Marie-Christine (2004) The granite hosted gold deposit of Moulin de Ch�ni (Saint-Yrieix district, Massif Central, France): petrographic, structural, fluid inclusion and oxygen isotope constraints. Mineralium Deposita, 39 (3) 265-281 doi:10.1007/s00126-003-0396-6 | Journal (article/letter/editorial) | | Chéni (Saint-Yrieix district, Massif Central, France): petrographic, structural, fluid inclusion and...7566, BP 23, 54501 Vandoeuvre-lès-Nancy cedex, France E-mail: jean.vallance@terre.unige.ch J. Vallance...cedex, France M. Varlet Société de Mines du Bourneix, Le Bourneix, 87500 Le Chalard, France C. Marignac...Mines, BP 20, 54501 Vandoeuvre-lès-Nancy cedex, France gesting rapid uplift of the basement up to 7.5...ore stage: Arsenopyrite (asp) growing on pyrite (py) blades, the pyrite probably replacing earlier pyrrhotite |  | | Journal (article/letter/editorial) | | feldspar shows the typicalrhomb-shaped habitof adularia, whereas albiteformstransparent, tabularcrystals...the samevugs(Fig. 7A) mand, 1996), senarmontite,adularia,and white to colorless suggest thatkermesite ishypogene...stibniteoccurs as fibrouscrystals alongcorrodedtionsof adularia arealsopresent in thegrayto whitequartz cleavage...mineralgrainboundaries andcracks, andradiating tabular adularia formsovergrowths onalbitecrystals whichcontain...veinquartzstockworksstibnite inclusions anddisplay adularia crystals ontheirtermithatcutcarbonate-pyrrhotite |  | Lesage, G., Richards, J. P., Muehlenbachs, K., Spell, T. L. (2013) Geochronology, Geochemistry, and Fluid Characterization of the Late Miocene Buritica Gold Deposit, Antioquia Department, Colombia. Economic Geology, 108 (5) 1067-1097 doi:10.2113/econgeo.108.5.1067 | Journal (article/letter/editorial) | | mineralization is associated with proximal sericite-adularia and distal epidote-dominant propylitic alteration...Epidote-dominant propylitic alteration outline Adularia-sericite alteration outline Topographic contour...alteration. Wall-rock alteration is characterized by an adularia-sericite alteration assemblage (discussed below)...gold mineralization is characterized by proximal adularia-sericite and distal epidote-dominant propylitic...the transition zone between the two styles where adularia-sericite alteration overprints epidote-dominant |  | Tindell, Thomas, Watanabe, Koichiro, Imai, Akira, Takahashi, Ryohei, Boyce, Adrian J., Yonezu, Kotaro, Schersten, Anders, Page, Laurence, Ogata, Takeyuki (2018) The Kago low-sulfidation gold and silver deposit: A peripheral mineralisation to the Nansatsu high-sulfidation system, southern Kyushu, Japan. Ore Geology Reviews, 102. 951-966 doi:10.1016/j.oregeorev.2017.10.027 | Journal (article/letter/editorial) | | typical low-sulfidation deposit, characterised by adularia-quartz veins, composed of electrum, Ag-tetrahedrite...from 66 to 69 wt% Au. 40Ar/39Ar age dating of adularia bearing colloform/crustiform and brecciated veins...deposits exhibit far younger ages. MITI (1985) dated adularia from the Iiyama deposit giving an age of 1.5 ±...0.1Ma, whilst Urashima and Ikeda (1987) dated adularia from Kuronida and Hanakago deposits (Fig. 1a)...Kushikino deposit in the western region has an adularia K-Ar age of 3.35-3.69 Ma (MITI 2000, Izawa and |  | | Journal (article/letter/editorial) | | Cikotok mines). Typical low-sulfidation quartz-adularia-sericite(-calcite) vein deposits represent the...vein system comprises four sub-parallel quartz-adularia-sericite(-calcite) veins that are rich in manganese...2 to 225.0 g/t Ag. A K/Ar age determination on adularia yielded 2.4 Ma for the Cikidang vein. The ore...quartz with variable amounts of calcite, sericite, adularia, clay minerals, manganese oxide and limonite....responsible for the Cikidang deposit. Keywords: gold, adularia, low-sulfidation, hydrothermal, fluid inclusion |  | | Journal (article/letter/editorial) | | deposited by boiling fluids are filled with quartz ± adularia ± epidote ± pyrite and base-metal sulfides, whereas...sericite. 40Ar/39Ar spectrum dating of stage 3 adularia from three depths has been combined with the mineral...together, these data record the deposition of adularia at ~330°C between 314 and 279 ka, minor cooling...performed on samples of vein adularia from Matalibong-25. The adularia crystals were separated with standard...GP-50 after heating. The heating times for the adularia samples ranged from 10 to 500 min. Argon isotopic |  | Saunders, J. A., Unger, D. L., Kamenov, G. D., Fayek, M., Hames, W. E., Utterback, W. C. (2008) Genesis of Middle Miocene Yellowstone hotspot-related bonanza epithermal Au–Ag deposits, Northern Great Basin, USA. Mineralium Deposita, 43 (7) 715-734 doi:10.1007/s00126-008-0201-7 | Journal (article/letter/editorial) | | primarily of meta-sedimentary or granitic origin, adularia-rich gold mineralization formed. Where glassy...clay-rich mineralization (with silica minerals, adularia, and carbonate) developed. Oxygen isotope data...alloy (electrum), naumannite (Ag2Se), silica, and adularia, likely nucleated at depth, traveled upward, and...commonly the most abundant silver mineral; (3) adularia is a common gangue mineral; (4) textures of silica...constituent in these ores. The presence and abundance of adularia in close association with gold in the bonanza |  | | Journal (article/letter/editorial) | | the southern sector of the Sierras Pampeanas Orientales geological province (Caminos, 1979), in the Sierra...sericite-illite that may have replaced pre-existing adularia, since it has the characteristic habit of the...replaced by carbonates. In addition, diamond shape adularia is intergrown with carbonate crystals. Sphalerite...quartz and Mn-rich carbonates as gangue minerals. Adularia is absent from all vein stages (Márquez-Zavalía...al., 2006). Mineralization consists of quartz, adularia, carbonates (commonly Mn-rich), with pyrite, sphalerite |  | | Journal (article/letter/editorial) | | and silver are present in the ores. 13 Quartz, adularia and clay minerals (illite-montmorillonite) with...3b-e). 215 Silica, chlorite, calcite, sericite, adularia (Fig. 3f) and weak argillic (illite-montmorillonite)...minerals progressed from illite-quartz to quartz-adularia, carbonate and finally 219 gypsum dominated...concentric zoning pattern. The quartz-adularia (quartz, adularia and 222 pyrite) and sericite (illite...mineralizing system (fig. 10a). 472 The occurrence of adularia, bladed calcite, and vapor-rich two-phase inclusions |  | Kim, Kyu Han, Lee, Seungyeol, Nagao, Keisuke, Sumino, Hirochika, Yang, Kyounghee, Lee, Jong Ik (2012) He-Ar-H-O isotopic signatures in AuAg bearing ore fluids of the Sunshin epithermal gold-silver ore deposits, South Korea. Chemical Geology, 320. 128-139 doi:10.1016/j.chemgeo.2012.05.027 | Journal (article/letter/editorial) | | veins, which are characterized as low sulfidation (adularia-sericite) type. The ratios provide direct evidence...genetically divided into three types: low sulfidation (adularia-sericite), intermediate sulfidation and high sulfidation...galena bismuthinite, Au-rich electrum, Quartz, adularia, calcite Sericitic, chloritization, propylitic...tennantite, argentite, Ag-rich electrum Quartz, adularia, calcite, clay minerals Sericitic 136–310 °C 75...sphalerite, galena, pyrite argentite, electrum, Quartz, adularia, calcite K.H. Kim et al. / Chemical Geology 320–321 |
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