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 20 of 1911 for “"Fossil"”.
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Contributions to Exceptional Fossil Preservation
Exceptionally preserved fossils—or fossils preserved with remains of originally non-biomineralized (i.e. soft) tissues—constitute a key resource for investigating the history of the biosphere. In comparison to fossils of biomineralized skeletal elements, which represent the majority of the fossil …
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Hybrid solar-fossil fuel power generation
… this thesis, a literature review of hybrid solar-fossil fuel power generation is first given with an emphasis on system integration and evaluation. Hybrid systems are defined as those which use solar energy and fuel simultaneously, thus excluding the viable alternative of solar thermal plants …
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Improving Recording and Interpretation of Fossil Tracks
Hominin fossilised trackways are commonly used to reconstruct locomotory behaviour and to characterise track-maker biometrics. They are the most direct representation of hominin locomotion available, yet the recording and measurement of the tracks and the subsequent interpretation to characterise …
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Taphonomy of pigmentary colours in fossil insects
… displayed in their cuticles. Although fossil insects are abundant and the patternings in their cuticles highly resemble those found in extant insects, these are commonly monotonal, especially in those insects preserved across deep geological time. Colouration mechanisms in extant …
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Some Fossil Mollusks of Yakima County, Washington
… thesis is designed to locate and describe known fossil mollusk sites in Yakima County, Washington. As part of this thesis a detailed comparison of two sites will be given, including identification and a systematic description of the specimens, as well as the correlation and interpretation of the …
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Statistical analysis of correlated fossil fuel securities
… potentially tradable. Securities related to the fossil fuels industry are used as the basis of a practical application to two distinct forecasting techniques. The first method, forecasting using conditional multivariate Gaussian statistics, was shown to yield, in a relative sense, the best …
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Steam temperature regulation in fossil power plants
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2001.
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Palynology and Paleoecology of the Fossil Butte Member of the Eocene Green River Formation in Fossil Basin, Lincoln County, Wyoming
<p>The palynoflora of the Fossil Butte Member of Green River Formation was studied to enhance our understanding of the depositional environment of ancient Fossil Lake. Forty-nine outcrop samples were collected from three measured sections representing the center, the margin, and intermediate areas …
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Higher interrelationships of recent and fossil gonorynchiform fishes.
Higher interrelationships of recent and fossil gonorynchiform fishes.
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Mid Cretaceous fossil forests of Alexander Island, Antarctica
Spectacular fossil trees and shrubs are preserved within fossil soils in their original growth positions in mid Cretaceous rocks on Alexander Island, Antarctic Peninsula. These fossils indicate that diverse forest communities grew upon the floodplain areas of Alexander Island during the Albian at a …
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The fossil Bovidae of Sterkfontein, Swartkrans And Kromdraai
The fossil sites Swartkrans, Sterkfontein and Kromdraai are situated in close proximity, not more than three kilometres apart, in the Sterkfontein valley near Krugersdorp, Transvaal. Excavation at these sites has yielded abundant faunal remains, including hominids, as well as stone artefacts.For a …
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Digital reconstructions of fossil morphologies, Nama Group, Nambia
Previously undescribed fossils of weakly calcified metazoans were recently discovered in the terminal Proterozoic Nama Group of central and southern Namibia (Grotzinger et al., 1995), in sediments that contain the terminal Proterozoic index fossil Cloudina. The new fossils are closely associated …
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Exceptional Preservation and Bias in the Fossil Record
… and on potential source of bias in the fossil record. The occurrence of exceptionally preserved fossil assemblages and the existence of systematic bias in the fossil record from a variety of sources represent opposing forces acting on the information quality of the fossil record. …
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Investigating Predation in the Fossil Record: Modern Analogs
… to examine predator-prey interactions in the fossil record. Considering the importance of community interactions in the current global biodiversity crisis, understanding ecological and evolutionary dimensions of predation is critical to conservation biology and ecology, as predators are …
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Finding fossil galaxy system progenitors using strong gravitational lensing
Fossil galaxy systems have been described as some of the oldest systems in the universe, where the central galaxy has cannibalized most nearby member galaxies over cosmic time. While the progenitors to fossil systems have been predicted to exist in numerical simulations, little effort has gone into …
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Studies of Phthiraptera (Insecta: Psocodea): From phylogeny to fossil
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo terms
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