 | Sorokin, A. A., Ostapenko, N. S., Ponomarchuk, V. A., Travin, A. V. (2011) 40Ar/39Ar age of adularia from veins of the Tokur gold deposit, the Mongolian-Okhotsk Orogenic Belt, Russia. Geology of Ore Deposits, 53 (3) 264-271 doi:10.1134/s1075701511030081 | Journal (article/letter/editorial) | | Vol. 53, No. 3, pp. 297–304. 40 Ar/39Ar Age of Adularia from Veins of the Tokur Gold Deposit, the Mongolian–Okhotsk...reliable isotopic ages. The 40 Ar/39Ar age of adularia from ore of the Tokur deposit is discussed below...Ingagli and Lukachek 264 40 AR/39AR AGE OF ADULARIA FROM VEINS 108° 120° 64° 132° 144° 265 ...DEPOSITS Vol. 53 No. 3 2011 40 AR/39AR AGE OF ADULARIA FROM VEINS the bedding in host rocks. The economic...fragments of host rocks; calcite, ankerite, sericite, adularia, and sulfides in subordinate amounts. The content |  | Tohma, Yuki, Imai, Akira, Sanematsu, Kenzo, Yonezu, Kotaro, Takahashi, Ryohei, Koyama, Masaaki, Sekine, Ryota, Duncan, Robert, Watanabe, Koichiro (2010) Characteristics and Mineralization Age of the Fukusen No. 1 Vein, Hishikari Epithermal Gold Deposits, Southern Kyushu, Japan. Resource Geology, 60 (4) 348-358 doi:10.1111/j.1751-3928.2010.00140.x | Journal (article/letter/editorial) | | southern Kyushu, Japan. 40Ar/39Ar plateau ages of adularia from the margin and the center of the Fukusen...shows banding structure composed mainly of quartz, adularia and clay minerals. Colloform texture is displayed...Hishikari deposits. Keywords: 40 Ar/39Ar dating, adularia, colloform texture, electrum, epithermal gold...classified as lowsulfidation (Hedenquist, 1987) or adularia-sericite (Heald et al., 1987) epithermal vein...quartz, adularia, calcite and clay minerals, such as smectite, as gangue constituents. Adularia is the |  | 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 |  | Mortimer, N., van den Bogaard, P., Hoernle, K., Timm, C., Gans, P.B., Werner, R., Riefstahl, F. (2019) Late Cretaceous oceanic plate reorganization and the breakup of Zealandia and Gondwana. Gondwana Research, 65. 31-42 doi:10.1016/j.gr.2018.07.010 | Journal (article/letter/editorial) | | to form between the continents of Australia, Antarctica AC and Zealandia (Stock and Cande, 2002; Wright...Meer et al., 2016), and SW Pacific-Zealandia-Antarctica Cretaceous tectonics (Luyendyk, 1995; NU Sutherland...intraplate volcanism in formerly adjacent West Antarctica and Australia (Finn et al., 2005). The initial...Supplementary Files). CE In the Bollons Gap lava P63810, adularia (replacing plagioclase) was dated by furnace step-heating...K-feldspar formation in the basalt. Because the adularia is a metasomatic mineral, this is a minimum age |  | | Journal (article/letter/editorial) | | of a volcanic-epithermal hydrothermal system (adularia-sericite-quartz type), of Cretaceous age, rather...volcanic rocks, perhaps by stratovolcano collapse. Adularia-sericite systems form in marginal and central...development of the Scotia arc region. In The Geology of Antarctica (ed. R. J. Tingey), pp. 215-44. Oxford: Clarendon...King George Island (South Shetland Islands, West Antarctica), Bulletin of the Polish Academy of Sciences...active volcanism. In Geological Evolution of Antarctica (eds M. R. A. Thomson, J. A. Crame and J. W. |  | | Journal (article/letter/editorial) | | (4),2r 123-135 (1896)' ON THE MINERALOGY OF ANTARCTICA DuNc.qN SrnwAnt, Jr.., Corleton College,Northf'eld...Christensen(Christensen-Vulkan)of Robert' son Island, West Antarctica. The following is a list of the 167 mineral species'subspecies...questionable occurrence, that have been reported from Antarctica. A number of these have been determined only...determined only by chemical analysis. Acmite Actinolite Adularia Aegirine-augite Allanite Almandite Analbite? Analcite...petrography. II. Rocks from Ingrid Christensens Land, Antarctica. Sci. Res. Norwegian Antarctic Exped'. 1927-1928 |  | Wu, Li-Yan, Stuart, Finlay M., Di Nicola, Luigia, Heizler, Matthew, Benvenuti, Marco, Hu, Rui-Zhong (2019) Multi-aliquot method for determining (U + Th)/He ages of hydrothermal hematite: Returning to Elba. Chemical Geology, 504. 151-157 doi:10.1016/j.chemgeo.2018.11.005 | Journal (article/letter/editorial) | | to 5.64 ± 0.11 Ma, Ar/39Ar data from cogenetic adularia yield flat age spectra with analytically SC ...575 ± 0.008 and 5.583 ± 0.013 Ma). An additional adularia has a more complex spectrum and yields an interpreted...perturbation. Keywords: (U+Th)/He; hematite; 40Ar/39Ar; adularia; Elba ACCEPTED MANUSCRIPT 1. Introduction The...hematite and compared them to K-Ar ages of cogenetic adularia from the Miocene-aged hydrothermal mineralisation...multi-aliquot hematite He ages and high precision adularia 40Ar/39Ar ages with the aim of assessing the age |  | | Journal (article/letter/editorial) | | type varies, e.g. ma c volcanics of Botany Bay, Antarctica (Ostera et al., 1992), ma c intrusives near...deduced up ow zone where the dominant epidote + adularia + albite + quartz assemblage deposited from near-neutral...chalcedonic quartz – all three types with subordinate adularia. This vein is crosscut by a late-stage vein of... colloform banding occurs almost exclusively, adularia is less abundant, late stage calcite veining is...acanthite, with rare polybasite, in the quartz-adularia portions of the North Vein. One of the rarer mineralogical |  | | Journal (article/letter/editorial) | | VEIN FORMATION DETERMINED BY 40Ar/39Ar DATING OF ADULARIA IN THE HOSEN-1 VEIN AT THE HISHIKARI EPITHERMAL...macroscopic bands. We used 40Ar/39Ar dating of adularia by incremental step heating to determine the duration...formation. Plateau ages were obtained from all adularia samples, and no significant excess 40Ar is recognized...associated with later bands. The 40Ar/39Ar ages of adularia indicate that vein formation occurred episodically...170°C. Introduction The Hishikari gold-bearing adularia-quartz vein deposit is a low-sulfidation (White |  | | Journal (article/letter/editorial) | | (4),2r 123-135 (1896)' ON THE MINERALOGY OF ANTARCTICA DuNc.qN SrnwAnt, Jr.., Corleton College,Northf'eld...Christensen(Christensen-Vulkan)of Robert' son Island, West Antarctica. The following is a list of the 167 mineral species'subspecies...questionable occurrence, that have been reported from Antarctica. A number of these have been determined only...determined only by chemical analysis. Acmite Actinolite Adularia Aegirine-augite Allanite Almandite Analbite? Analcite |  | Titisari, A.D., Phillips, D., Warmada, I.W., Hartono, , Idrus, A. (2020) 40Ar/39Ar geochronology of the Pongkor low sulfidation epithermal gold mineralisation, West Java, Indonesia. Ore Geology Reviews, 119. 103341 doi:10.1016/j.oregeorev.2020.103341 | Journal (article/letter/editorial) | | study presents 40Ar/39Ar age results for four adularia samples from Ciguha gold-bearing quartz vein yielding...plus one weighted mean age of 1.95 ± 0.04 Ma. Adularia from the Kubang Cicau gold-bearing quartz veins...40Ar/39Ar plateau age of 2.02 ± 0.03 Ma. The period of adularia growth in the Ciguha vein may have extended from...interval indicates multiple generations of the adularia. The data suggest that mineralisation of Ciguha...continued episodically or continuously. The age of adularia from the Kubang Cicau gold-bearing quartz vein |  | | Journal (article/letter/editorial) | | accepted July 5, 2005 Abstract: Ages for thirty adularia samples collected from various veins were in the...by 40Ar/39Ar dating to constrain the timing of adularia-quartz vein formation and to determine the temporal...hydrothermal fluid. Plateau ages were obtained from all adularia samples, and significant excess 40Ar is not recognized...mineralization within individual veins was determined by adularia ages from the early and late stages of mineralization...temperatures of liquid-rich fluid inclusions in columnar adularia used for age determination were determined to |  | | Journal (article/letter/editorial) | | Suzuki, 1993; Izawa et al., 1990) are of epithermal adularia-sericite type (Heald et al., 1987), or low-sulfidation...veins and veinlets composed mainly of quartz, adularia, carbonates and clay minerals. The age of mineralization...metapelitic granulites from Napier Complex, East Antarctica. It has been noted that biotite solid solution...S. (2002a) A fluid inclusion study on columnar adularia of the Hishikari low-sulfidation epithermal gold...volcanic-hosted epithermal deposits: Acid-sulfate and adularia-sericite types. Econ. Geol., 82,1–26. Hedenquist |  | 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 |  | | Journal (article/letter/editorial) | | system reinterpreted it as an epithermal system of adularia-sericite type, possibly related to mid- to late...associated, the relationship between porphyry and adularia-sericite systems is controversial (Sillitoe 1992)...neutral or compressive regional stress. However, adularia-sericite vein systems may be related to crustal...King George Island (South Shetland Islands, West Antarctica). Bull. Pol. Acad. Sci: Earth Sci. 30:21-32 Birkenmajer...plutonic centres, South Shetland Islands (West Antarctica): Subduction and hot spot magmatism. Bull. Pol |  | Andrada de Palomera, Pablo, van Ruitenbeek, Frank J.A., van der Meer, Freek D., Fernández, Raúl (2012) Geochemical indicators of gold-rich zones in the La Josefina epithermal deposit, Deseado Massif, Argentina. Ore Geology Reviews, 45. 61-80 doi:10.1016/j.oregeorev.2012.01.001 | Journal (article/letter/editorial) | | which are mainly composed of quartz and minor adularia, calcite, barite and sulfides. Some mineralized...are present in Argentina, Chile and probably Antarctica (Pankhurst et al., 1998), constitute the Chon...veinlets and hydrothermal breccias that often include adularia. The veins include mainly open-space textures...predominantly coarse crystalline quartz, some calcite and adularia, and the temperatures of homogenization in fluid...is minor adularia, barite, opal and calcite. In the Central area (Fig. 1), rhombic adularia, probably |  | | Journal (article/letter/editorial) | | Brantley, and M. L. Machesky: Proton adsorption at an adularia feldspar surface. L. L. Stillings and S. L. Brantley:...studies of syenites from the Yamato Mountains, East Antarctica: Implications for the origin of syenitic magmas |  | Páez, G.N., Ruiz, R., Guido, D.M., Ríos, F.J., Subias, I., Recio, C., Schalamuk, I.B. (2016) High-grade ore shoots at the Martha epithermal vein system, Deseado Massif, Argentina: The interplay of tectonic, hydrothermal and supergene processes in ore genesis. Ore Geology Reviews, 72. 546-561 doi:10.1016/j.oregeorev.2015.07.026 | Journal (article/letter/editorial) | | Ag–As–Sb sulfosalts and Cu–Pb–Zn sulfides, with an adularia-quartzillite gangue. Hydrothermal alteration is...vein walls; five alteration zones were defined: an adularia zone close to the veins, an intermediate halo...characterize the vein system. 40Ar–39Ar dating in adularia crystals constrains the hydrothermal activity...veinlets, of sacharoidal quartz with minor subrhombic adularia (Dong and Morrison, 1995) and no associated ore...sulfosalts. Gangue minerals of this episode are adularia, quartz and minor illite. It typically has a brecciated |  | | Journal (article/letter/editorial) | | cell-dimensions, 216; Rockall, opt., cell-dimensions, 216. Adularia, New Zealand, hydrothermal, anal., opt., genesis...from, 815. Anorthoclase, Nigeria, opt., 37o. Antarctica, olivine, 238. Anthophyllite, conditions for...of augite on bronzite, Scotland, H5. Erebus, Antarctica, albite, anal., d2o i, 489. Exsolution during...gr. 144. Olivine, oriented in meteorite, 23o; Antarctica, recrystallization textures, 238; Arizona, anal...paragenesis, 561. STHNER (A.), Genesis of a hydrothermal adularia from New Zealand, 916. Stenna Gwyn, St. Austell |  | Titisari, Anastasia Dewi, Phillips, David, Prayatna, , Setyaraharja, Eko Purwanto (2017) 40Ar/39Ar Geochronology of Volcanic and Intrusive Rocks in the Papandayan Metallic Prospect Area, West Java, Indonesia. Resource Geology, 67 (1) 53-71 doi:10.1111/rge.12118 | Journal (article/letter/editorial) | | 3.95 0.03 Ma. An 40Ar/39Ar age obtained from adularia in the Arinem mineralized vein (18.30 0.20 Ma)...Papandayan volcanic and intrusive rocks, as well as on adularia from the Arinem mineralized quartz vein. The samples...(whole-rock) BCAN4–49.7 (plagioclase) BCAN6B-9 (adularia) Pam8 Pam7 Pam4 Pam6 Pam2 1.44–2.38 750–1400...0001 0.0002 0.0001 0.0001 0.0001 0.0002 0.0001 Adularia 1σ moles) 0.1231 0.2153 0.0174 0.0131 0.0133...results for Papandayan whole-rock, plagioclase, and adularia of Arinem vein aliquots 40 Aliquot Code Table |  | | Journal (article/letter/editorial) | | precipitation dissolution at 100°C: An evaluation at an adularia at 25°C and pH 3: Reaction feldspar of elementary...D. J. ELLIS, and J. W. SHERATON: Geochemical Antarctica: Implications for the origin of syenitic magmas |  | Buchko, I. V., Buchko, Ir. V., Sorokin, A. A., Ponomarchuk, V. A., Travin, A. V. (2014) Localization of mineralization, its age, and relationship to magmatism at the Mogot silver-base-metal deposit, North Stanovoi metallogenic zone in the southeastern framework of the North Asian Craton. Geology of Ore Deposits, 56 (2) 101-112 doi:10.1134/s1075701514020020 | Journal (article/letter/editorial) | | accompanied by zones of quartz (quartz–sericite with adularia) metasomatic rocks in the central part of an oremetasomatic...quartz–sericite rock with a cer tain amount of adularia and veinlets of galena– sphalerite aggregates...0.1 144 ± 5 Age by all steps is 142.3 ± 1.4 Ma Adularia from orebearing quartz–sericite metasomatic rock...Age, Ma Age, Ma 300 151 Ma Sample BKM2082 adularia 20 40 60 80 Percentage of released 39Ar, % 200...BKM202); graphs of stepwise annealing for (c) adularia and (d) sericite from orebearing quartz–sericite |  | Hawthorne, Frank C., Kimata, Mitsuyoshi, Cerny, Petr, Ball, Neil, Rossman, George R., Grice, Joel D. (1991) The crystal chemistry of the milarite-group minerals. American Mineralogist, 76 (11-12) 1836-1856 | Journal (article/letter/editorial) | | a conventional ZAF routine; are associatedwith adularia and minor qtartz. Sample averageanalysesare given...the main pegmatite,accompaniedby bertrandite and adularia (Stanek, 1964); this occunence seemsto be unrelated...replacementunit, coating albite in associationwith adularia. late albite. hematite rosettes, muscovite, and...potassium feldspar,the latter being transformed into adularia. In the epithermal Ag-Au deposit of the Valencia...(Jensenand Bateman,l98l), milarite crystallized with adularia and quartz and is overgrown by calcite; fluorite |  | | Journal (article/letter/editorial) | | drainage water Fe, geochemistry, 60( 12): 21 I I Adularia (K-feldspar) H, defects, 60(21): 4075 Alaska,...composition, Laramie Range, Wyoming, 60( 1): 95 Antarctica ALH84001, magnetite, 60(24): 5149 ALH84001, S...formation, system CaCl,-H,O, 60( 1) : 7 Hydrogen adularia, H defects, 60(21): 4075 COZ-H? mixtures, Pt catalyst...formation, 60( 17): 3285 Infrared spectroscopy adularia, 60(21): 4075 calcite, ‘so-substituted, 60( 18)...Remote sensing analog study, sediment, Lake Hoare, Antarctica, 60(5): 765 Rhenium chondrites, carbonaceous |  | | Journal (article/letter/editorial) | | bunsenite for Ni, natural albite for Na, and natural adularia for K. The EMPA analyses were made by 30 s measurements...sapphirine and quartz in granulite from Enderby Land, Antarctica. Nature, 219, 476 477. Das, K., Dasgupta, S....Osumilite-sapphirine-quartz granulites from Enderby Land Antarctica Mineral assemblages and reactions. Contributions...association from Archean rocks in Enderby Land, Antarctica. American Mineralogist, 65, 821 836. Grew, E...the sapphirine quartz terrane of Enderby Land, Antarctica: implications for osumilite petrogenesis in the |
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