Results 31 to 40 of about 10,069 (268)
Junggar Basin, located in northern Xinjiang, presents continuous and multikilometer-thick strata of the Jurassic deposits. The Jurassic was entirely terrestrial fluvial and lacustrine deltaic sedimentation.
Shun-Li Li +3 more
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Geochemical features of the organic matter from Jurassic sediments of the Nadym‑Taz interfluve
This paper deals with the evaluation of oil-generation potential derived from the geochemical data on deep-buried Jurassic sedimentary rocks of the Nadym-Taz interfluve being part of the West Siberian petroleum basin (PB).
Lyubov S. Borisova +2 more
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“Upper Jurassic” sediments of South Africa [PDF]
MARINE sedimentary rocks exposed near Knysna in the Cape Province of South Africa were assigned to the Upper Jurassic on the basis of a fragment of an ammonoid and seven previously undescribed species of ostracod1. A more thorough examination of the microfossils in these rocks indicates that this assignment was erroneous and that the beds are of Early ...
R. P. STAPLETON, E. M. BEER
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In the Caborca–Altar area of northwest Sonora, variably deformed and metamorphosed sedimentary and volcanic rocks crop out in a northwest-southeast–trending belt (El Batamote belt) at least 70 km long.
Carl E. Jacobson +5 more
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Tetradactyl footprints of an unknown affinity theropod dinosaur from the Upper Jurassic of Morocco. [PDF]
BACKGROUND: New tetradactyl theropod footprints from Upper Jurassic (Oxfordian-Kimmeridgian) have been found in the Iouaridène syncline (Morocco). The tracksites are at several layers in the intermediate lacustrine unit of Iouaridène Formation.
Jaouad Nouri +8 more
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Geology of the Monte Banchetta – Punta Rognosa area (Troncea valley, Western Alps)
The map ‘Geology of the Monte Banchetta – Punta Rognosa area (Troncea valley, Western Alps)’ details the lithostratigraphy and structural setting of a key sector in the Alpine chain, characterized by close associations of continental and oceanic ...
Alberto Corno +3 more
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The paper considers geochemical features of the Bazhenov Formation in the context of its petroleum potential and formation conditions. The major processes that had an impact on lithomineralogical and geochemical characteristics of the rocks were revealed
E. A. Predtechenskaya, L. D. Malyushko
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Hylaeochelys is the only thalassochelydian turtle identified in the Cretaceous record. A single Lower Cretaceous species is known, Hylaeochelys belli, identified in United Kingdom and Germany and defined in the first half of the 19th century. Less than a
Adán Pérez-García +2 more
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Certain Upper Jurassic Strata of England [PDF]
B y combining the evidence of a number of sections in England and near Boulogne-sur-Mer I have succeeded in establishing a normal succession of zones in the Oxfordian, Kimmeridgian, and Portlandian rocks, using these terms according to the German and French classifications. Dispensing with A.
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Stegosaur tracks from the Upper Jurassic of Portugal: new occurrences and perspectives
The record of Late Jurassic stegosaur tracks from the Lourinhã Formation (Kimmeridgian-Tithonian) is here revised. Thirty-eight dinosaur tracks, preserved as natural infill casts, are here reported, and thirty-two of them are attributed to the ichnogenus Deltapodus.
Guillaume, Alexandre Renaud Daniel +2 more
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