Preliminary Note on so-called Upper Devonian Formation discovered in the North-eastern Abukuma Plateau, Japan
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چکیده
منابع مشابه
So-Called Primary Venous Obstruction in the Upper Extremity
V ENOUS OBSTRUCTION in the upper extremity is not commonly encountered clinically, and when it does occur it is usually associated with metastatic carcinoma involving the axilla, or from pressure due to mediastinal or lung tumors. A number of cases have been documented in the medical literature where venous obstruction has occurred in the absence of these contributing factors and, as such, a va...
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The Geirud Formation consists mainly of clastic sediments which are interbedded with limestone stringers. This rock unit is well-exposed along the Central Alborz Range in northern Iran. The Geirud Formation rests unconformably on the Mila Formation (Upper Cambrian) and is conformably overlain by the Mobarak Formation (Lower Carboniferous). This study was undertaken to determine the geologi...
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Since its original description as a chordate, the Late Devonian Scaumenella mesacanthi has been interpreted alternately as a prochordate, a larval ostracoderm and an immature acanthodian. For the past 30 years, these minute specimens were generally considered as decayed acanthodians, most of them belonging to Triazeugacanthus affinis. Among the abundant material of 'Scaumenella', we identified ...
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The archaeological mound of Sofalin south of the Alborz Mountains of Northern Iran (Eastern Rey plain) sheds considerablelight on at least four problems connected with the emergence of complex societies in this part of Iran. The first, it helpsfill a chronological gap in an important archaeological sequence by revealing a previously unidentified late fourth andthird millennium B.C. sequence of ...
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ژورنال
عنوان ژورنال: The Journal of the Geological Society of Japan
سال: 1956
ISSN: 0016-7630,1349-9963
DOI: 10.5575/geosoc.62.117