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Now showing items 81-100 of 370
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(2003)New taxa of tabanids and athericids are described from the Lower Cretaceous deposits of England and Transbaikalia. The relationships of new genera to the Recent Athericidae and Recent and fossil Rhagionidae are discussed. ...
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(2001)Horst-accretionary systems (HAS) extended to the northeast and alternating with rift-grabens (RG) were established within the bounds of the southeastern margin of Asia. The synchronous formation of these positive and ...
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(2002)The impact-induced release of CO2 is one of the potentially most important mechanisms to explain drastic and rapid changes of the climate at the Cretaceous-Tertiary (K-T) boundary. General predictions, modeling, and ...
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(2001)The warm biospheres of the Late Cretaceous and Early Triassic interglacials existed alternately in the humid or arid state. The stages of humid and arid climate differed considerably in their paleogeography and sedimentation ...
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(1988)We analyzed asphaltenes of crude oils and bitumens in dispersed organic matter from various regions of the West Siberian block and the Siberian craton. The West Siberian crude oil samples were collected from Jurassic and ...
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(2002)Most of the 3-mm-thick globally distributed Chicxulub ejecta layer found at the Cretaceous-Tertiary (K-T) boundary was deposited as condensation droplets from the impact vapor plume. A small fraction of this layer (<1%) ...
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(2004)The author provides new data for the paleontological and stratigraphic understanding of the Upper Cretaceous formations of the Crimean Peninsula. Within the classic Bakhchisaray region 24 samples from six sections ...
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(1989)The identifying property of ophiolite is the pseudostratified grouping from the bottom up of ultramafics, gabbro, basalt and cherty sediments. In many ophiolite complexes these rocks have been tectonically separated, and ...
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(2001)This study is based on the isotope-geochemical characteristics of oils from 53 fields in the South Caspian Basin - from Upper Cretaceous, Eocene, Oligocene-Lower Miocene (Maykop), middle and the Upper Miocene (Diatom) and ...
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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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(2003)Strontium-, oxygen- and carbon-isotope ratios have been determined from Late Jurassic–Early Cretaceous belemnites from the Volga Basin, Russia, and Kawhia Harbour, New Zealand. 87Sr/86Sr ratios derived from well-preserved ...
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(1998)Stable isotopic measurements have been made on both planktonic foraminifera and coccolithic matrix of Middle Cretaceous (Late Albian-Cenomanian) age from two Pacific low latitude sites. The degree of alteration of the ...
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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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(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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(1990)Evidence of Mesozoic lamprophyre volcanism was established by us for the first time for Syria in the rift on the west margin of the Arabian platform. We studied the diatremes of Al Burgal, A'r R'band, Al Asued and Marqikh ...
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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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(2002)Carbon stable-isotope stratigraphy provides unique insights into environmental change during the Campanian, the longest (83.5–71.3 Ma), but least well-understood stage of the Late Cretaceous. A new carbon isotope (δ13C) ...
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(2003)We present palaeomagnetic results from Late Cretaceous welded tuffs in the Kisin Group (Monastirskaya Suite, Primorskaya Series) collected at 27 sites from the Sikhote Alin mountain range. A high unblocking temperature ...
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LATE CRETACEOUS PALEOMAGNETIC DATA FROM THE MEDIAN RANGE OF KAMCHATKA, RUSSIA: TECTONIC IMPLICATIONS (1998)A Late Cretaceous island arc complex was sampled for paleomagnetic study in the northern part of the Median Range of Kamchatka. In most samples, thermal demagnetization in 12-18 steps revealed either a reversed characteristic ...
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(2003)A new unit of the morphogenetic system, the stemma Duplocolpoidipolles, is established. In respect to the development of the germinative apparatus, the stemma immediately follows the stemma Duplospores Pflug., which embraces ...
Now showing items 81-100 of 370