نتایج جستجو برای: grained sediments are present
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Introduction In theory, the bulk composition of the sediment may provide a way of determining the provenance of this material if there is sufficient diversity in the bedrock compositions. However, sediment compositions may be changed from the original bedrock as a result of transport and chemical weathering. The geochemistry of bedload and suspended sediments has been used by many workers to d...
New data collected from twenty-six sites during 2008 in the contaminated Site of National Interest (SIN) of Porto Marghera within the Lagoon of Venice (Italy), which has been affected by the presence of an industrial zone for the last 80 years, were compared with data from a campaign performed in the same site 30 years before (1976-1978). The SIN was found to be heavily polluted in the earlier ...
Fine grained sedimentary rocks, both clastic and carbonate, are believed to be the most abundant rock type on the Earth‟s surface (Picard, 1971; Blatt, 1982). Fine grained rocks appear to constitute somewhere in the region of 70% (Holmes, 1937) and 80% (Clarke, 1924) of all the sediment ever produced. In sedimentology the size grade scale most commonly used is that which was introduced by Udden...
surface oil seeps from alasht, lapur and jenesem share many compositional affinities including distributions and concentrations ofnormal alkanes, terpanes and steranes. these oils also show many similarities with that of jurassic sediments (shemshak group, klarizformation) systematically sampled from the galandrud coal mine. recent geochemical studies in this area indicated that theshemshak gro...
the present study reports an analysis of response articles in four different disciplines in the social sciences, i.e., linguistics, english for specific purposes (esp), accounting, and psychology. the study has three phases: micro analysis, macro analysis, and e-mail interview. the results of the micro analysis indicate that a three-level linguistic pattern is used by the writers in order to cr...
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