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Browsing ELibrary by Title
Now showing items 7881-7900 of 21936
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(2004)Scars of shell muscles have been discovered on internal molds of helcionelloid mollusks of the family Stenothecidae for the first time. The localization of the scars is similar to that in the family Coreospiridae. Since ...
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(2002)A new ammonoid species of the family Neocomitidae is discovered in the Riasanites rjasanensis zone of the Ryazaman Stage (Berriasian) in the course of the study of the Jurassic-Cretaceous boundary beds in the Russian ...
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(1997)The Upper Riphean biostratigraphic characteristic of the Timan was supplemented with the new data provided by the drilling of a number of wells in the Tsil'menskii Kamen' region. Its western sections include abundant ...
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(2004)New morphological types of sclerites of the tommotiid species Lapworthella fasciculata Conway Morris et Bengtson are described from the Lower Cambrian of South Australia. These sclerites are composed of five fused elements. ...
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(2004)The complex petro-, geochemical and mineralogical investigation of gabbroides and associating with them plagiogranites permits to conclude that formation of the gabbroic pluton, which fragments are mapped in 1-ya Olchovaya ...
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(2004)The Mezen sedimentary basin (frequently called the Mezen syneclise) situated on the northeastern Russian Platform has an area of aprroximately 300 000 km2. The volume of its sedimentary filling exceeds 106 km3. Riphean and ...
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(1987)Since the thermoisochron method requires only a small quantity of material (one or a few zircon crystals), the authors able for the first time to date sedimentary rocks and anorthosite that contain only very small quantities ...
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(2004)The North Caspian region between the Kuma River mouth and the Emba River hosts several submeridional ridges and mounds (Baer hummocks), which are named after K. Baer who described them. Despite the long history of study ...
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(1989)The Gorringe Ridge, in the northwestern segment of the Azores-Gibraltar zone has long been a feature of great interest, primarily because bedrock exposures of the ophiolite association, i.e., serpentinite, gabbro, metadolerite, ...
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(1990)The Kachkanar-Guseva gabbro-clinopyroxenite pluton is a typical representative of the complicated multiphase complexes of the dunite-gabbro-plagiogranite association in folded regions, and contains a large ore deposit of ...
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(2001)The structure of the Lower Cretaceous rhyncholites H. (Hadrochelius) optivus and H. (H.)fissum is studied using SEM. Phyncholites are shown to consist of many alternating homogeneous layers of granular and cryptocrystalline ...
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(2004)Geothermal studies in the central Kola Peninsula revealed the existence of anomalously low heat flows in the depth range of 0-1 km. The nature of such anomalous temperature behavior in the Earth's upper crust is related ...
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(2004)The Sikhote Alin accretionary fold system of the Russian Far East incorporates a series of polymineral tin and tungsten deposits that were formed in different geodynamic environments of an active continental paleomargin. ...
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(2000)New data on Upper Cretaceous deposits exposed to the north of Yaroslavl and to the southwest of Vladimir are considered in order to show that the Khot'kovo Opokas, dated back to the Turonian by some researchers, are actually ...
Now showing items 7881-7900 of 21936