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 195 for “"sedimentary rocks"”.
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Occurance of Selenium in Sedimentary Rocks
<p>The investigation of Selenium in Sedimentary Rocks was stimulated by Mr. Kohanowski who had two samples of sedimentary material that were believed to contain selenium.</p> <p>As not too much information is available or known about selenium minerals Mr. Kohanowski thought it would be educational …
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The origin of remanent magnetism in sedimentary rocks
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Geology and Geophysics, 1960.
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Fault formation in porous sedimentary rocks at high strain rates
… theoretical work suggests that faults in porous sedimentary rocks subjected to high strain rates do not form from deformation band damage zones (DBDZs) as typically observed in porous rocks. This hypothesis is evaluated by an investigation of faults mapped within the porous Navajo Sandstone at …
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Metallogenesis of Cu deposits in Upper Palaeozoic sedimentary rocks, southern Ireland
Copper has been exploited in SW Ireland for thousands of years. The increased demand for copper world-wide has led to renewed interest in these occurrences and their overall implication for copper metallogenesis in Ireland. This PhD research study focuses on historically mined, mainly vein-hosted …
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Determination of seismic attenuation using observed phase shift in sedimentary rocks
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Science, 1982.
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The sedimentology and palaeogeography of some Devonian sedimentary rocks in Southwest Ireland
… Peninsula, Co. Kerry, southwest Ireland. The rocks in the area are predominantly of Old Red Sandstone facies, totalling over 6600m in thickness, and were deposited near the northern fault-bounded margin of the extensive half-graben feature known as the Munster Basin. Towards the end of the …
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Causes and Mechanisms of Remagnetisation in Palaeozoic Sedimentary Rocks - a Multidisciplinary Approach
… of Fe-oxide leachates to study remagnetised sedimentary rocks from Palaeozoic outcrops in Middle and Eastern Europe. Three areas were selected (NE Rhenish Massif, Barrandian and Holy Cross Mountains), where the causes of Late Palaeozoic remagnetisations are yet unclear. The results yield …
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RE – OS AND PGE GEOCHEMISTRY OF ORGANIC-RICH SEDIMENTARY ROCKS AND PETROLEUM
… Sands demonstrates that Pt/Pd ratios in source rocks are not affected by hydrocarbon maturation and are distinct between differing potential source units. Comparison of the Tar Sands with potential source units demonstrates that the Tar Sands are mainly sourced from the Lower Jurassic Gordondale …
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Time and process in sedimentary rocks at the dawn of animal life
… multicellular organisms with tissues. Sedimentary rocks record this evolutionary event, alongside other shifts in environment and climate, in fragmentary form. Sedimentological studies track change in space and relative time, and radiometric studies allow us to tie events to absolute …
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Statistics of the elastic parameters and their possible correlation with the sedimentary rocks
Thesis. (M.S.) Massachusetts Institute of Technology. Dept. of Geology and Geophysics, 1956.
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Geo-chemo-mechanical modeling of sedimentary rocks: application to unconventional reservoirs and geological CO2 sequestration
Due to their abundance, sedimentary rocks are playing a critical role in re-defining the world's energy landscape, leading to shifts in global geopolitics. The recovery of oil and gas from organic-rich shales, geological sequestration of CO2 in sandstone host rocks and storage of nuclear waste in …
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The Role of Horizontal Stress in the Formation of Valley Stress Relief Features in Flat-Lying Sedimentary Rocks
The objective of this thesis is to demonstrate, largely by numerical modeling, the general mechanisms by which the features mentioned above are formed. First, evidence supporting the existence of a regional horizontal stress, well in excess of gravitational considerations, will is presented. This …
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A field and petrographic study of some extrusive and sedimentary rocks along the Carp and Little Carp rivers in Ontonagon and Gogebic counties, Michigan
Thesis (M.S.)--Michigan State College of Agriculture and Applied Science. Dept. of Geology and Geography, 1950
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Evaluation of Failure Mechanics of the Malpais Landslide, Eureka County, Nevada
… weakly clay-cemented Tertiary fluviolacustrine sedimentary rocks controlled the failure. The sedimentary rocks overlie competent deep-ocean Paleozoic basement rocks and underlie Miocene dacite flow units. The landslide, which originated at a local high point along the fault-controlled Malpais …
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