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Now showing items 101-120 of 228
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(1996)Oriented samples of the Lower Cambrian Bayan Gol Formation from Salaany Gol, Mongolia, were collected at roughly 5 m stratigraphic intervals for palaeomagnetic analysis. Progressive alternatingfield and thermal demagnetization ...
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(2002)A new compilation of deep seismic reflection data, in combination with the results of recent geological and isotopic investigations, provides the basis for significantly refined structural and evolutionary models of the ...
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(2002)This paper presents new data from paleomagnetic investigations of Middle Paleozoic (Early-Middle-Late Devonian, Early Carboniferous) and Middle Jurassic geological units from the Amuria block south of the Mongol-Okhotsk ...
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(2000)Within the hinterland of Urals, there occur a variety of high-grade complexes that have been interpreted to be fragments of continents that were accreted to Baltica during Paleozoic orogeny. Some workers have inferred the ...
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(1997)The Upper Ordovician-Lower Carboniferous brachiopod assemblages are described and the basic framework of the Paleozoic stratigraphy in the West Siberian Lowland is substantiated by the stratigraphic distribution of these ...
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(2003)In order to date the cessation of magmatic activity and characterize the final stage of Paleozoic magmatism in the northeast Baltic Shield, we carried out isotope-geochemical investigation of dikes that are abundant within ...
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(2002)The well-known Variscan basement areas of Europe contain relic terranes with a pre-Variscan evolution testifying to their peri-Gondwanan origin (e.g., relics of Neoproterozoic volcanic arcs, and subsequent stages of ...
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(2002)Biogeographically distinctive Paleozoic fossil biotas from the Farewell terrane (which includes three previously defined subterranes, Nixon Fork, Dillinger, and Mystic) of southwestern Alaska document close ties to Siberia ...
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(2004)The study of Paleozoic rocks in the easternmost exposed section and eastern foothills of the Polar Urals (Shchuch'ya synclinorium) in the Shchuch'ya River basin is of great importance for the description of the rock complexes ...
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(1990)Data obtained in regional geophysical studies by the Yeniseygeofizika Corporation on the southeastern margin of the West Siberian Block have led to a new interpretation of the geological structure and developmental history ...
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(2000)The pre-Mesozoic section exposed by reference Vezdekhodnaya BH-4 to a depth of 5005 m is made up of Cambrian (?) granodiorites at its base followed upward by the volcanoterrigeous sequence of the Lisitsa measures and a ...
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(1996)Two intrinsically different processes, break-up of supercontinents after mantle insulation (‘hot-spots’) and early formation of supercontinents after mantle cooling (‘cold-spots’), show causal links with periods of low ...
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(2001)The porphyry Cu–Mo deposits in the southern Siberian craton and Northern Mongolia including subduction-, collision-, and rift-related igneous series of early Paleozoic to Mesozoic age, are all characterized by varying ...
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(1989)With the composition of the Paleozoic crossopterygian fishes, the Rhipidistia, three orders are now distinguished: the Osteolepidida and Rhizodontida, On the basis of an analysis of these materials and a comparison of ...
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(1997)Chromites forming giant orebodies in the souther part of the Early Palaeozoic ophiolite sequence of the the Kempirsai Massif (Kazakhstan, Urals) contain a large number of inclusions, i.e. silicates, sulphides, alloys, ...
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(2001)The history of investigation into the petroleum potential of deep-seated horizons of the Uralian region is reviewed. Two major objects for oil and gas prospecting are considered: 1) Late Precambrian (Riphean and Vendian) ...
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(2001)The Lashkerek caldera filled with acid volcanic products is situated in the Kurama Ridge near Tashkent (Uzbekistan). These eruptions of the Late Paleozoic time were predominantly of the explosive type. The erupted complex ...
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(2000)A time-space relationship between large igneous provinces (LIPS), present day hot spots, and the fragmentation of Pangea has been documented over several decades, but the cause of fragmentation has remained elusive. LIPS ...
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(1990)The Nadir volcanic body, which has been mapped in detail, provides an insight into the dynamics of post-spreading activity. This Paleozoic structure is located in the Sartalin ophiolite zone of the Southern Tyan-Shan Range. ...
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(1989)The Paleozoic fold belt of southern Mongolia includes two systems, the Variscan (South Mongolian) and the Indosinian (Inner Mongolian or East Gobi). The first arose in the Early Carboniferous in the area of an old ocean ...
Now showing items 101-120 of 228