Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"bioproductivity"”.
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Pliocene-Pleistocene Radiolarian Investigations of the Equatorial Oceans
… this time, trade wind intensity, upwelling, and bioproductivity is reduced, with a concomitant rise in sea-surface temperatures. A comparison with land sequences indicate palaeoenvironmental changes consistent with known El Nino phenomena, although these conditions are likely to lay beyond the …
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Spatial and temporal variations in the geometry and composition of the Permian Whitehill Formation South Africa
… have accumulated in a marine setting with high bioproductivity of organic carbon delivered in form of flocculated organo-minerallic aggregates (pelagic snow) onto an anoxic seabed overlain by dysoxic to oxic waters. Reduced terrigenous input, presence of phosphorites, increasing CIA and …
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Phylogenetic and physiological characterization of deep-biosphere microorganisms in El’gygytgyn Crater Lake sediments
… as an enhanced temperature-induced intra-lake bioproductivity and higher input of allochthonous organic-rich material during Pliocene climatic conditions. Moreover, the microbial richness parameters follow the general trends of the paleoclimatic parameters, such as the paleo-temperature and …