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.
Results
Showing 1 to 10 of 10 for “"Paleokarst"”.
-
Seismic Expressions of Paleokarst
<p>Paleokarst are characterized by epigene and/or hypogene processes in their formation and hold significant numbers of hydrocarbons and other natural resources. This dissertation examines worldwide seismic expression of paleokarst; and specifically, the characterization of paleokarst reservoirs …
-
Late-Mississippian paleokarst in the Aspen, Colorado area
Includes bibliographical references.
-
Analysis of Paleokarst Sinkholes in the Arkoma Basin using 3-D Seismic
<p>Paleokarst features are important to understand, both with regards to research geologists and to the petroleum industry. In terms of geology, understanding paleokarst features can yield more information about the depositional and surface environments of past times, and how diagenetic alteration …
-
Systematics, Climate, and Ecology of Fossil and Extant Nyssa (Nyssaceae, Cornales) and Implications of Nyssa grayensis sp. nov. from the Gray Fossil Site, Northeast Tennessee
… is interpreted to represent a lacustrine paleokarst fed by a river or stream. This research focuses on the morphological and systematic relations of Nyssa endocarps (fruit pits) from the fossil site to extinct and extant Nyssa species. A combination of metric and nonmetric traits allows …
-
Geology, paragenesis, and geochemistry of sphalerite mineralization at the Young mine, Mascot-Jefferson City zinc district, East Tennessee
… brecciation. The first episode was related to a paleokarst terrain developed atop the Knox unconf orrni ty. The second episode was probably related to tectonic activity and expulsion of fluids from a sedimentary basin to the southeast. Episodic dolomitization in the vicinity of the ore bodies …
-
Stability of paleosinks and karstic carbonates in the Southern Fire Clay Mining District of Missouri
… has possibly increased the instability of this paleokarst terrain and the potential of further environmental impacts to the land. Evidence supporting this hypothesis are: (1) A southerly shift in the regional groundwater divide relative to the topographic divide. This possibly is caused by the …
-
The Middle Ordovician Knox unconformity, Virginia Appalachians: transition from passive to convergent margin
… in stratigraphic relief in the same direction. Paleokarst features that formed on the unconformity include topographic highs that extend up to 30 m into overlying Middle Ordovician peritidal carbonates, sinkholes and caves that extend down to 65 m below the unconformity and are filled with …
-
Late Paleozoic basin analysis of the Loppa High and Finnmark Platform in the Norwegian Barents Sea : integration of seismic attributes and seismic sequence stratigraphy
… and mapping the spatial extent of a buried paleokarst terrain. This geological feature is interpreted to have formed during a protracted episode of subaerial exposure occurring between the late Palaeozoic and middle Triassic. Based on seismic sequence stratigraphy analysis the …
-
Depositional Environments and Diagenesis of the Devonian Dawson Bay Formation in Saskatchewan and Northwestern Manitoba
… and other economic minerals in the basin. Three paleokarst horizons have been recognized in the contact zone between the SRBM and the Burr Member. The presence of the paleokarsts indicates that before the Williston Basin was completely flooded by seawater during early Burr time, two minor marine …
-
Facies analysis of the Prairie du Chien group in the Illinois Basin and analogous rocks in Missouri and Kentucky
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms