Influence of the Frasnian - Famennian extinction event on the reef development within the Pechora syneclise
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چکیده
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the impact of morphological awareness on the vocabulary development of the iranian efl students
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15 صفحه اولTHE CAUSE OF BIOMASS EXTINCTION AT THE FRASNIAN-FAMENNIAN BOUNDARY, THE KERMAN PROVINCE SOUTHEASTERN, CENTRAL IRAN
About 35 samples were collected from lower and upper parts of the proposed Frasnianamennian boundary in three sections of Upper Devonian marine sediments of the Kerman province. The biostratigraphical and geochemical studies indicate that about 45% extinction of brachiopods probably caused by the Frasnian-Famennian bioevents, which is slightly higher than thr rate of Devonian-Carboniferous exti...
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abstract the present study tried to investigate the effect of visual aids (films) on the development of the speech act of disagreement among iranian efl intermediate learners. to this end, the researcher selected 40 homogeneous intermediate learners based on their scores on oxford placement test. .the subjects then divided into control group and experimental group. both classes were tested by ...
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ژورنال
عنوان ژورنال: Proceedings of higher educational establishments. Geology and Exploration
سال: 2017
ISSN: 2618-8708,0016-7762
DOI: 10.32454/0016-7762-2017-1-30-36