Sedimentary and volcanic stratigraphy
Paleomagnetic data from the Trans Mexican Volcanic Belt: implications for tectonics and volcanic stratigraphy
... 470 L. M. ALVA-VALDIVIA et al.: PALEOMAGNETISM FROM CENTRAL MEXICO Fig. 3. Simplified geologic map of upper Miocene mafic lavas (in gray) and main fault systems of the Los Altos de Jalisco region (from Ferrari et al., ...
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Volcanic Stratigraphy and Lithogeochemistry of the Northern Section of the Lynn Lake Greenstone Belt: Implications for Regional Geodynamics and Metallogenesis
... terranes (i.e., Winchester and Floyd, 1977; Dostal et al., 1980; Kerrich and Fyfe, 1981; Polat and Hofmann, 2003) has shown that, under amphibolite-facies metamorphic conditions, HFSE typically remain immobile; however, ...
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References. Acknowledgements. Sedimentary basins concealed by volcanic rocks
... shelf stratigraphy of North ...Greenland: stratigraphy, facies and depo- sitional ...Palaeontology, stratigraphy and environmental setting of Middle Cambrian outer shelf deposits, North ...
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An Overview Of Landscapes And Stratigraphy In Tertiary And Quaternary Volcanic Regions Of East Java Indonesia
... 169 along the coast which is affected by ocean waves and results in advanced coastlines. Aeolian deposits on Pancer beach form sand dunes composed of sand derived from material carried by rivers and the sea. Vegetation ...
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Facies Architecture of the Volcanic Sedimentary Complex of the Iberian Pyrite Belt, Portugal and Spain
... Boulter et al., 2001, 2004). The top contacts of the felsic units are typically composed of a sediment- matrix igneous breccia that has been interpreted as peperite, formed by intrusion of felsic magma into ...
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Facies Architecture of the Volcanic Sedimentary Complex of the Iberian Pyrite Belt, Portugal and Spain
... third volcanic event identified at Neves Corvo is probably from the early ...The volcanic facies at Neves Corvo comprise less than 1/3 of the 600 m total VS Complex thickness, the remainder being ...
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Facies Architecture of the Volcanic Sedimentary Complex of the Iberian Pyrite Belt, Portugal and Spain
... tectonic, volcanic and sedimentary setting of strongly deformed Zn-Cu massive sulfide deposits at Benambra, ...2001. Volcanic facies in VHMS districts and their use in reconstructing ...
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Stratigraphy, K-Ar ages, and magnetostratigraphy of the Acambay graben, central Mexican Volcanic Belt
... Pliocene-Quaternary volcanic rocks predominate in this area, but some volcanic units in the vicinity of the graben may be Miocene (Silva-Mora, 1979; Soler-Arechalde, ...are sedimentary deposits, ...
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Volcano-sedimentary stratigraphy in the Valsequillo Basin, Central Mexico inferred from electrical resistivity soundings
... volcano- sedimentary deposits preserve rich paleontological, paleoclimatic and paleoenvironmental records, which include extinct megafauna remains associated with human ...
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Sedimentary characteristics, sequence stratigraphy and geochemistry of the Tiz Kuh Formation in the Pol-e-Zoghal section (South of Chalus)
... sequence stratigraphy, and elemental ...Cretaceous volcanic unit and associated disconformity of the Upper Cretaceous volcanic ...shallow sedimentary and aragonitic ...order sedimentary ...
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Chemo-stratigraphy, petrology and U-Pb geochronology of Karakılıçlı Volcanic Field in NW Anatolia: Implications for Hellenic Subduction System
... Karakılıçlı volcanic field. We investigated two different volcanic sections (Kalpakkaya and Çamlık hill) that display the best volcano-sedimentary features in terms of geochronology and ...
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Sequence Stratigraphy and Sedimentary Facies of Fula Subbasin, Muglad Basin (Sudan)
... The origin of Fula Subbasin is related to the first rifting cycle (+ synrifting cycle?) that took place during the Early Cretaceous associated with an increase in tectonic activity and the opening of the Central African ...
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A NOTE ON THE VOLCANIC STRATIGRAPHY AND INTRUSIVE ROCKS OF THE LEBOMBO MONOCLINE AND ADJACENT AREAS
... Rhyolites which crop out in the upper part of the Sabie River Formation to the north-east of Hluhluwe in the southern Lebombo are designated as the Cooeyana Rhyolite [r] ...
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Sequence Stratigraphy and Sedimentary Environment of Sarvak Formation, in the Oil Field of Kuhmond (Southwest of Iran)
... studies, stratigraphy and sedimentary environment in Sarvak Formation were ...the sedimentary environment of Sarvak formation in Kohmond field was diagnosed as a ramp carbonate platform (Figure ...
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Sea cliff at Glowe: stratigraphy and absolute age chronology of the Jasmund Pleistocene sedimentary record
... The main dating techniques for age constraint of the Weich- selian ice marginal positions (IMPs) and associated deposits in NE Germany are surface exposure dating (SED; Heine et al., 2009; Rinterknecht et al., 2014), ...
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Facies architecture, sedimentary environment and paleographic evolution of the Paleogene stratigraphy, South Eastern Nigeria
... these sedimentary deposits are re-interpreted as tide- dominated estuarine ...pre-existing sedimentary rocks, magmatic-gneiss complex and granitic rock of the Oban Massif and the magmatic-gneiss complex and ...
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Facies Architecture of the Volcanic Sedimentary Complex of the Iberian Pyrite Belt, Portugal and Spain
... felsic volcanic facies are interpreted to be the products of numerous, relatively small intrabasinal volcanic centres that generated abundant lavas, domes and pyroclastic ...Some volcanic centres are ...
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Facies Architecture of the Volcanic Sedimentary Complex of the Iberian Pyrite Belt, Portugal and Spain
... felsic volcanic rocks consist of calc-alkaline dacites, rhyolites and high-silica rhyolites (Munhá, 1983; Mitjavila et ...felsic volcanic rocks or black ...
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Facies Architecture of the Volcanic Sedimentary Complex of the Iberian Pyrite Belt, Portugal and Spain
... The sedimentary domains of the dacite-sediment breccia are concentrated near the lower contact of the dacite unit, which suggests they were incorporated during the emplacement of the dacite over unconsolidated mud ...
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Facies Architecture of the Volcanic Sedimentary Complex of the Iberian Pyrite Belt, Portugal and Spain
... In addition, felsic pyroclastic facies may contain abundant lithic clasts texturally similar to the lavas/domes, together with sedimentary clasts and minor milky quartz clasts at some locations. The fiamme in ...
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