Global ETD Search
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Showing 1 to 5 of 5 for “"biogenic structures"”.
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The Use of Computed Tomography to Measure Biogenic Structures in Recently Hypoxic and Normoxic Sediments on the Louisiana Continental Shelf
… and over a greater area. To determine if biogenic structures in the northern Gulf of Mexico vary in response to hypoxic stress, the seafloor on the continental shelf of Louisiana was analyzed during the spring and fall of 2009 at four provinces of similar sediment type that differ in …
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Bioturbation in Supratidal Carbonates: Georadar Characterization of the Patterns and Structure of Decapod Burrows
… that differentiates between the three end-member structures and matrix properties. This study establishes GPR as a viable non-invasive subsurface imaging technique, with potential implications for: 1) identification of shifting ichnocoenoses, as exemplified by intense hurricane impacts …
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SEDIMENTOLOGY, ICHNOLOGY, AND SEQUENCE STRATIGRAPHY OF THE MIOCENE OFICINA FORMATION, ORINOCO OIL BELT, EASTERN VENEZUELA BASIN
… of marine conditions is present and the only biogenic structures detected are root trace fossils present at the top of a few fining- and thinning- upward channelized units. The Middle Member is much more heterogeneous, both vertically and laterally, comprising high-sinuosity estuarine-channel, …
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Ecology and behaviour of burrowing prawns and their burrow symbionts
… by burrowing engineers which indirectly create biogenic structures that often attract other species, often leading to the evolution of symbiotic relationships. Engineered structures provide non-trophic (e.g. refuge) and trophic functions (e.g. food) for burrow symbionts, however, the relative …
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Sedimentology, ichnology, and stratigraphic architecture of the upper Devonian-lower Mississippian Bakken Formation, west-central Saskatchewan
… is comprised of F5 through F8, shows scarce biogenic structures, most likely as a result of brackish-water conditions. Geological mapping (structure surface and isopach) of the facies and facies associations has aided in illustrating their lateral distribution. However, mapping of the …