نتایج جستجو برای: shelf environment
تعداد نتایج: 541533 فیلتر نتایج به سال:
Moored time series from the Coastal Ocean Dynamics Experiment (CODE), Shelf Mixed Layer Experiment (SMILE), Sediment Transport Events over the Shelf and Slope (STRESS) study, and Northern California Coastal Circulation Study (NCCCS) are used to study subtidal cross-shelf circulation over the northern California shelf. The northern California shelf, like much of the United States Pacific coast, ...
A detailed sedimentological analysis of the Palaeocene Lockhart Limestone has been conducted to evaluate depositional environment, diagenetic processes and hydrocarbon potential eastern margin Upper Indus Basin. From bottom top, there are three microfacies recorded. The lower microfacies, composed fine-grained micrite some dolomite, reflect low energy calm palaeo-current in shallower section (1...
Microbes play crucial roles in various biogeochemical processes in the ocean, including carbon (C), nitrogen (N), and phosphorus (P) cycling. Functional gene diversity and the structure of the microbial community determines its metabolic potential and therefore its ecological function in the marine ecosystem. However, little is known about the functional gene composition and metabolic potential...
Three long-range (5 MHz) Coastal Ocean Dynamics Application Radar (CODAR) SeaSonde HF radars overlooking an array of as many as eight moored acoustic Doppler current profilers (ADCPs) have operated on the West Florida Shelf since September 2003 for the purpose of observing the coastal ocean currents. HF radar performance on this low-energy (currents and waves) continental shelf is evaluated wit...
Shelf–basin exchange in the western Arctic was evaluated by use of water-column analyses of Ra/ Ra ratios and the first measurements of the short-lived Ra (T1/2 1⁄4 3.64 d) in the Arctic. During the 2002 shelf–basin interaction (SBI) program, excess Ra was detected over the shelf but was not found seaward of the shelf-break. Similarly, the Ra/ Ra ratio dropped rapidly from the shelf across the ...
After the destruction of the Deepwater Horizon drilling platform during the spring of 2010, the northern Gulf of Mexico was threatened by an oil spill from the Macondo well. Emergency responders were concerned about oil transport in the nearshore, where it threatened immediately the fishing waters and coastline from Louisiana to Florida. In this region, oil movement was influenced by a continen...
A stratigraphic section from the Tirgan Formation was selected in Arkan village nearby Bojnourd city in order to study echinoderm fauna systematically. Many specimens of echinoderms, especially toxasteridae which is associated with brachiopods were collected and studied systematically in this paper. Microscopie slides were also prepared and studied. All slides contain benthic foraminifers and c...
A brief account of the representative and workable industrial minerals namely magnesite, talc and barite in Lesser Himalaya, is presented here emphasizing their genesis. Deposits of magnesite and talc are found associated with Neoproterozoic, plateform type, shelf-slope limestone-dolomite host rocks from inner Lesser Himalayan sequences. Field, textural, geochemical signatures and fluid inclusi...
this review focuses on the introduction of par-baked bread technology and effects of map on the microbial and sensorial shelf life of the mentioned bread, which are discussed here under four categories of the product contamination after probating, the composition of the gas, the characteristics of the packaging material, and the packaging technology. since traditional breads have a low quality ...
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