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Argos Rhyolite

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Journal Article
Journal: Elements
Published: 01 June 2019
Elements (2019) 15 (3): 191–196.
... at temperatures close to, or above, zircon saturation). This makes precise geochronology a challenge. For example, an age of 200 ± 50 ka was determined by K–Ar on whole-rock for the Argos Rhyolite (also named the Avlaki Rhyolite in more recent publications), but the same unit was dated at only 66.6 ± 2 ka using K...
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Journal Article
Published: 20 November 2012
Canadian Journal of Earth Sciences (2012) 49 (12): 1523–1539.
... of pathways along major fault zones. The geochemistry of the volcanic rocks ( Pe-Piper and Jansa 1987 ; Pe-Piper et al. 1994 ) showed the presence of basalt, trachyte, and alkaline rhyolite and microgranite. Chemical composition and radiogenic isotopes show that basalts range from mildly alkalic to mildly...
FIGURES
Journal Article
Published: 01 June 1967
Bulletin of Canadian Petroleum Geology (1967) 15 (2): 138–149.
... , - - -Sample localit ies. 140 L. V. HILLS and H. BAADSGAARD Samples of ash, lapilli tuff, bentonite, rhyolite and hornblende andesit e were collected from beds with plant microfossils near Princeton, Quil- chena, Kamloops, Cache Creek and Smithers (see Figure 1, and Appen- dix A) . Because of the problems...
Journal Article
Journal: AAPG Bulletin
Published: 11 October 1997
AAPG Bulletin (1997) 81 (10): 1721–1749.
... ( Boote and Kirk, 1989 ). The pre-Callovian tectonic style is characterized by half grabens bounded by listric faults forming a detachment fault system ( Mutter and Larson, 1989 ). In the study area, volcanic and volcanoclastic rocks are absent. To the north, however, at the Wombat Plateau, rhyolite...
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Journal Article
Published: 01 June 2000
Canadian Journal of Earth Sciences (2000) 37 (6): 923–944.
... and Anderson unpublished data, 1997 34 Eskay rhyolite west 175.1 2.4 2.4 4.7 4.7 75 82 U–Pb g Childe 1996 35 Eskay rhyolite east 174.1 2.1 1.1 4.5 1.1 75 82 U–Pb h Childe 1996 36 Diagonal Mtn. 2 167.2 10.5 0.4 11.2 0.4 95 96 U–Pb f Pálfy et al. 2000 b...
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Journal Article
Published: 01 December 1982
Journal of the Geological Society (1982) 139 (6): 691–700.
... of representative calc-alkaline Mesozoic volcanic rocks: (a) basalt, andesite and dacitic ignimbrite from Byers Peninsula, Livingston I . , South Shetland Is; ( b ) basalt and basaltic andesite from Jason Peninsula, Oscar I1 Coast; rhyolite (TL.615.1) from tuff-breccia, Gemini Nunatak, Oscar I1 Coast. and rhyolite...
Journal Article
Journal: GSA Bulletin
Published: 01 March 2004
GSA Bulletin (2004) 116 (3-4): 259–276.
... to dacite in composition and constitute ∼13 km 3 of the total volume of Volcán Ceboruco. Overall, the relative proportions of lava types erupted in the past 0.8 m.y. are 18%–19% basaltic andesite, 56%–60% andesite, 18%–22% dacite, and 3% rhyolite. The peripheral lavas are each of small volume...
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Journal Article
Published: 26 February 2018
Canadian Journal of Earth Sciences (2018) 55 (5): 514–535.
...-Piper 1988 ). The geochemistry and petrography of these volcanic rocks demonstrated the presence of basalt, trachyte, and alkaline rhyolite and microgranite ( Pe-Piper et al. 1994 ). The widespread volcanic activity indicates a regional magma source that resulted in high regional paleo-heat flow...
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Journal Article
Published: 01 April 1994
Journal of the Geological Society (1994) 151 (2): 269–290.
..., paleoceanography and taxonomy of agglutinated foraminifera 1990 The Netherlands Kluwcr Academic Publishers 969 1015 Ogg J. G. Kodama K. Wallick B. P. Lower Cretaceous magnetostratigraphy and paleolatitudes off NW Australia (ODP Site 765 and DSDP Site 261, Argo Abyssal Plain, and ODP Site...
Journal Article
Journal: Economic Geology
Published: 01 December 2021
Economic Geology (2021) 116 (8): 1865–1892.
... Irregular patchy zoning pl, k-fsp, qz, chl, carb, po, mag, ilm, ap   Raleigh, Australia 1   Anhedral to tabular Homogeneous qz, carb, cpy, gn, sp, py, gold   St. Ives , Conqueror, Argo, Australia 2 1–200 Anhedral with locally poikilitic to skeletal texture Fine-scale patchy zoning...
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Journal Article
Published: 01 May 2004
Journal of the Geological Society (2004) 161 (3): 523–539.
... ). Radiometric ages for the andesites, rhyolites and ignimbrites of the Takena and Lingzizong formations range from 119 to 38 Ma ( Maluski et al . 1982 ; Xu et al . 1985 ; Miller et al . 2000 ). Both radiometric and biostratigraphic data appear to indicate that subduction-related magmatism along...
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Journal Article
Journal: AAPG Bulletin
Published: 01 June 1974
AAPG Bulletin (1974) 58 (6): 1069–1088.
... Piedmont area of southern Georgia, (2) lower Paleozoic platform cover sampled over a wide area of northern Florida and southern Georgia, and (3) predominantly rhyolitic and basaltic volcanic rocks north and south of the platform deposits and in central Florida, some of which have been dated as Mesozoic...
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Journal Article
Journal: AAPG Bulletin
Published: 01 March 1988
AAPG Bulletin (1988) 72 (3): 347–366.
...-Imperial Cormorant N-83 ( Figure 1 ). In the latter two wells, the igneous rocks are Late Triassic to Early Jurassic age and thus excluded from this study. Also excluded is the Mallard M-45 well, in which a bimodal suite of mixed acidic and basic igneous rocks (rhyolite, trachyte, basalt...
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Journal Article
Journal: GSA Bulletin
Published: 01 September 2004
GSA Bulletin (2004) 116 (9-10): 1158–1182.
... described by Shelton (1955, p. 45) as “massive and auto brecciated basalt, calcic andesite, andesite, dacite(?), and rhyolitic lavas, and an approximately equal volume of interbedded tuffs and tuff breccias.” These rocks are widespread in the San Jose Hills and northern Puente Hills and are found also...
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Journal Article
Journal: Economic Geology
Published: 01 December 2005
Economic Geology (2005) 100 (8): 1511–1527.
... thick) is composed of nonvesicular pillowed and massive basalt flows of back-arc basin geochemical affinity, with subordinate rhyolite flows occurring in the western parts of the ophiolite complex (Fig. 1 ). Thin units of slate are present locally in the upper member. The transitional, ore-hosting...
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Journal Article
Journal: SEG Discovery
Published: 01 January 1999
SEG Discovery (1999) (36): 1–48.
..., was amalgamated, I left Fresnillo on my orebody belongs to the Villalpando vein system, is hosted by a way to the San Martin Unit of IMMSA, in Sombrerete. rhyolite dome, and, as with the famous Veta Madre system, it strikes northeast. Although small as an orebody, its strongly sheared veins In San Martin, I had...
Journal Article
Journal: Economic Geology
Published: 01 September 2002
Economic Geology (2002) 97 (6): 1167–1202.
... of the principal Au, Cu and Bi deposits (filled squares). Geology and stratigraphy after Donnellan et al. (1995) , with minor modifications from Le Messurier et al. (1990) and Donnellan (pers. commun., 2000). Abbreviations (commodities): A = Argo (Au), E = Eldorado (Au), G = Gecko (Cu-Au-Bi), I = Ivanhoe (Au-Cu...
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Journal Article
Journal: AAPG Bulletin
Published: 01 December 1975
AAPG Bulletin (1975) 59 (12): 2209–2265.
... (Cruises 17, 19, 22, 26, 27) and R/V Conrad (Cruises 8, 13) of Lamont-Doherty Geological Observatory (L-DGO); USNS Kane (Cruise 9) of U.S. Naval Oceanographic Office; Unitedgeo I of United Geophysical Service on contract with the U.S. Geological Survey, and R/V Argo (Circe Expedition) of Scripps...
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Series: Geological Society, London, Special Publications
Published: 01 January 2007
DOI: 10.1144/GSL.SP.2007.273.01.18
EISBN: 9781862395213
... of the island, the Argoos limen (Harbour of Argo), from the name of the ship of the Argonauts (Apollonios Rhodios, Diodorus, Strabo); (ii) pebbles on the shore, used by the Argonauts to clean themselves (or soiled by their sweat and dirt, or made by their coagulated dirt) and therefore, becoming dirty...
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Series: Special Publications
Published: 01 January 2011
DOI: 10.1144/SP355.2
EISBN: 9781862396036
... of continental crust rifted and separated from Australian Gondwana in the Jurassic. The rifting microcontinents were identified as South Tibet, Burma, Malaya, SW Borneo and Sumatra by Audley-Charles (1988) . Veevers et al. (1991) did not identify the continental block that separated from the Argo abyssal...
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