Browsing ELibrary by Subject "Jurassic"
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Browsing ELibrary by Subject "Jurassic"
Now showing items 41-60 of 129
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(1987)The Dauletabad-Donmez gas field is in the southern part of the Amu Dar'ya oil and gas province. The identification of the origin and sources of H2S in gases of the Dauletabad-Donmez field is very important, particularly ...
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(2004)This contribution presents the first detailed oxygen and carbon isotope record from the latest Jurassic-early Cretaceous interval of the Yatria River, subpolar Urals, Siberia. Isotopic compositions have been determined on ...
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(2002)Structural features and composition of Jurassic deposits in the Kafan tectonic block that is located in the southeastern part of the Lesser Caucasus are considered. Three carbonate members bearing foraminifers are distinguished ...
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(2004)The study is devoted to Jurassic gastropods of the Central and Central Chernozem regions of Russia. Thanks to the exact locality data on the collected material, the stratigraphic ranges of many species were refined. Several ...
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(2004)A caddisfly Dolophilodes ( Sortosella ) shurabica subgen. et sp. nov. (Philopotamidae) is described from the Jurassic of Kyrgyzstan, from the Sai-Sagul locality. The ecology and taphonomy of this locality are analyzed, and ...
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(1999)The latitudinal models of radiolarian paleogeographic provinces are considered, and Late Jurassic boreal radiolarian assemblages of Russia are characterized. Several Jurassic radiolarian assemblages from the Koryak Upland ...
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JURASSIC TRACHYBASALT-COMENDITE-ALKALI GRANITE VOLCANO-PLUTONIC ASSOCIATION OF EASTERN TRANSBAIKALIA (1989)Alkali basalt-comendite associations are a typical rock type of rift-generated structures and are known both in continental regions (the Basin and Ridge Province of the U.S., and in Mongolia) and in island-arc regions ...
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(2002)Geologic and paleomagnetic research in the western part of the Omolon massif and in the Sugoi folded zone, northeastern Russia, suggests significant lateral displacements of these units relative to one another and with ...
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(2001)The paper is devoted to the karst role in the formation of aureoles of kimberlite indicator minerals (KIM) and diamond placers in the modern alluvium of the Muna-Markha interfluve. Its territory is open, i.e., the Lower ...
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(2001)The temporal link between mass extinctions and large igneous provinces is well known. Here, we examine this link by focusing on the potential climatic effects of large igneous province eruptions during several extinction ...
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(2004)The Jurassic and Cretaceous are considered to have been warmer than today on the basis of various climate data and model studies. Here, we use the available global record of climate-sensitive sediments, plants, and dinosaurs ...
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(1987)The Chordi Deposit is located in the Oni district, Georgia, among Middle Jurassic volcano-sedimentary rocks on the 'andesite line' of the Gagra-Dzhava structural-metallogenic zone. It consists of a series of steeply dipping ...
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(1996)We studied Lower Jurassic (Pliensbachian-Toarcian) basalts and tuffs and Middle Jurassic (Bajocian) limestones and marls from 9 sites in the southern part of the Lesser Caucasus (ca. 39.3°N, 45.4°E). A component showing ...
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(1989)Igneous activity is a very accurate indicator linking the surface of the Earth to its crust and mantle. Features indicative of the general heterogeneity of the lithosphere include great magmatic 'seams', many thousands of ...
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(1986)The development history of the Alpine-Carpathian segment of the Alpine belt is considered. Since the Triassic numerous deep basins on continental crust have been formed there by rapid subsidence without significant stretching ...
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(2003)Observations of living Cernina fluctuata (Sowerby), the sole extant species of the Mesozoic and Cenozoic prosobranch gastropod family Ampullospiridae, show that this species is an algal grazer and is not a shell-drilling, ...
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(2001)Two new ammonoid species Proplanulites (Proplanulites) irinae and P. (P.?) rogovi (the most recent known fossils that can be undoubtedly assigned to the subfamily Proplanulitinae) are described from the terminal enodatum ...
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(2003)New finds of crocodiles and dinosaurs from the Late Jurassic deposits of southwestern Mongolia (Shar-Teg locality) and Eastern Siberia (basin of the Vilyui River, Teete locality) are described. A new species of small-sized ...
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(1985)Episodic volcanism favors, as shown by examples from Europe, the USA, and Brazil, the formation of organic-rich sediments (hydrocarbon source rocks). The examples examined from Europe comprise the Lower Carboniferous ...
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(2001)A thorough revision of the lectostratotype of the Volgian Stage near the Gorodishche Village (Ul'yanovsk region) and neighboring section of the upper Kimmeridgian-lower Volgian (Dubki Village) revealed the radiolarian ...
Now showing items 41-60 of 129