Showing 141 - 160 results of 192 for search '"pyroclastic rock"', query time: 1.39s Refine Results
  1. 141
    Geological, structural and geochronological framework of the Veladero North area, Cordillera Frontal, Argentina
    by Charchaflie, Diego
    Published 2009
    “... and 12.7 ± 0.9 Ma to 11.0 ± 0.2 Ma, ⁴⁰Ar-³⁹Ar) pyroclastic rocks and shallow intrusives of the Cerro de las...”
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  2. 142
    Evolução paleoambiental do Grupo Camaquã na região de Bom Jardim, sub-bacia Camaquã Central, RS
    by Liliane Janikian
    Published 2001
    “... or soon before the depositional events. (ii) Volcanic and Pyroclastic Rocks: composed of flows...”
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  3. 143
    Evolução paleoambiental do Grupo Camaquã na região de Bom Jardim, sub-bacia Camaquã Central, RS
    by Janikian, Liliane
    Published 2001
    “... or soon before the depositional events. (ii) Volcanic and Pyroclastic Rocks: composed of flows...”
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  4. 144
    Magmatic Evolution and Compositional Characteristics of Tertiary Volcanic Rocks Associated with the Venarch Manganese Mineralization, Sw Qom, Central Iran
    “... is mostly hosted by Eocene high-k volcanic and pyroclastic rocks of Urmia-Dokhtar Magmatic Arc (UDMA...”
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    Article
  5. 145
    Mesozoic geology of the Puerto Igeniero Ibáñez area, 46⁰ south, Chilean Patagonia
    by Bruce, Zane R. V.
    Published 2012
    “... minor andesitic lavas and pyroclastic rocks. Ignimbrites in this area are generally 5-20m thick...”
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  6. 146
    Geology of the Indian River area, southwestern British Columbia
    by Reddy, Douglas Gerald
    Published 2010
    “... to intermediate pyroclastic rocks, felsic and intermediate to mafic flows, and sedimentary rocks including cherts...”
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  7. 147
    Geology and genesis of copper deposits and associated host rocks in and near the Quill Creek area, southwestern Yukon
    by Campbell, Susan Wendy
    Published 2010
    “... to Triassic, cut by .Cretaceous and Tertiary intrusions. Flow and pyroclastic rocks of Lower Permian Station...”
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  8. 148
    Miocene Volcanic Activity in Los Angeles Basin and Vicinity
    by Eaton, Gordon Pryor
    Published 1957
    “... a small fraction of the total volume of lavas and pyroclastic rocks of the region. Petrographically...”
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  9. 149
    The Tertiary igneous geology of Strathaird, Skye
    by Almond, D. C.
    Published 1960
    “..., but there is also one horizon of trachybasalt and thin group of picritic flows. Pyroclastic rocks are rare, being...”
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  10. 150
    The volcanic geology and geochemistry of central Banks Peninsula and relationships to Lyttelton and Akaroa volcanoes
    by Sewell, R. J.
    Published 2012
    “... and lava flows, epiclastic and pyroclastic rocks that record the migration of volcanic activity from...”
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  11. 151
    Stratigraphic position, origin and characteristics of manganese mineralization horizons in the Late Cretaceous volcano-sedimentary sequence, south-southwest of Sabzevar
    “... and sandstone, and the volcanic rocks involve pyroclastic rocks of various composition, rhyolite, dacite...”
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    Article
  12. 152
    Geology, mineralogy and geochemistry of Koodakan 2 prospecting area, South of Birjand, East of Lut Block
    by Somayeh Samiee, Sedigheh Zirjanizadeh
    Published 2019-07-01
    “... units include Tertiary volcanic, intrusive, subvolcanic, and pyroclastic rocks. Analytical...”
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    Article
  13. 153
    Estratigrafía, mamíferos fósiles y edad de las secuencias volcanosedimentarias eoceno-miocenas de la sierra de Huantraico-sierra Negra y cerro Villegas (provincia del Neuquén, Argentina) Stratigraphy, fossil mammals, and age of the Eocene-Miocene volcano-sedimentary sequences of sierra Huantraico-sierra Negra and cerro Villegas (Neuquén Province, Argentina)
    “... into the Filo Morado Member (up to 250 m of olivine-alkaline basalts, pyroclastic rocks, and volcanogenic...”
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    Article
  14. 154
    Geology, hydrothermal alteration and geochemistry of the Iamalele (D'Entrecasteaux Islands, Papua New Guinea) and Wairakei (North Island, New Zealand) geothermal areas
    by Mitchell, Peter Ashley
    Published 2011
    “...-temperature reservoir at Wairakei is primarily restricted to porous pyroclastic rocks of the Waiora Formation...”
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  15. 155
    Contribuição à geologia de parte da porção meridional do Cráton Amazônico: região do Rio Alegre, MT
    by Matos, João Batista de
    Published 1995
    “..., with intermediate and acid lavas and pyroclastic rocks, and SãoFabiano Formation, characterized by metassedimentary...”
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  16. 156
    Dispersion and distribution of trace and ore elements in the polymetalic vein- type Chah-Mesi ore deposit, north of Shahre-Babak
    by Sara Dargahi, Maryam Sarvarizadeh, Mohsen Arvin
    Published 2020-11-01
    “... to glomeroporphyry textures, and to a lesser extent of pyroclastic rocks (Figure 4). The ore bodies are mainly...”
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    Article
  17. 157
    Determination of Mineralization Zones Using Interpretation of IP and RS Data in The GarmabCopper Deposit (South Khorasan province)
    “..., as well as pyroclastic rocks, including tuffs and ignimbrites. The Lut Block has undergone intense...”
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    Article
  18. 158
    The nature of hydrothermal fluids in the Kahang porphyry copper deposit (Northeast of Isfahan) based on mineralography, fluid inclusion and stable isotopic data
    “... pyroclastic rocks have been subjected to propyllitic alteration. This paper presents the results of geological...”
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    Article
  19. 159
    Mineralization and Fluid Inclusion Characteristics of Pirmardan Stratabound Copper Deposit (Manto Type), SW Shahrood)
    by Susan Ebrahimi
    Published 2019-11-01
    “...-intermediate volcanic and pyroclastic rocks of Tertiary range. The geological studies in this area indicate...”
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    Article
  20. 160
    Geochemistry and the origin of the Mamouniyeh iron ore-terra rossa deposit, Markazi Province - Iran
    “...-trachyandesitic lavas and pyroclastic rocks of Pliocene age. Materials and methods A total of 28 rock samples...”
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    Article
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