Download or read book Structural Framework and Tectono stratigraphic Evolution of the Porcupine Seabright Basin Offshore Western Ireland written by Michael P. Tate and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estuaries and Coastal Waters of the British Isles written by and published by . This book was released on 1989 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book British Reports Translations and Theses written by British Library. Document Supply Centre and published by . This book was released on 1991 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Host Bibliographic Record for Boundwith Item Barcode 30112033097202 and Others written by and published by . This book was released on 2013 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The structural and stratigraphic evolution of the Celtic Sea Basin offshore Ireland written by Philip Rowell and published by . This book was released on 1993 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Structural and Stratigraphic Evolution of the Celtic Sea Basins Offshore Ireland written by Philip Rowell and published by . This book was released on 1993 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Celtic Sea area, offshore southern Ireland, is underlain by several discrete rift basins, part of a larger set of such basins which developed marginal to the North Atlantic within the tectonic framework of Pangea break-up and episodic opening of the North Atlantic Ocean. This study investigates tectonic processes of rift basin formation by analysis of the structural and stratigraphic evolution of the Celtic Sea basins, with particular emphasis on the influence of preexisting crustal structure on that evolution. The Paleozoic Caledonian and Variscan orogenies each imprinted distinct structural grains on this area, and the intersecting pattern of these tectonic lineaments provided the structural framework for the subsequent Triassic, Late Jurassic and Early Cretaceous rifting phases. Detailed study of the largest basin in the area, the North Celtic Sea Basin, using an extensive well and seismic database, indicates that the mode of reactivation of these preexisting lines of structural weakness depended on the orientation of the principal extensional stress direction relative to these lineaments. The Triassic and Late Jurassic northwest-southeast oriented extensional stress reactivated Caledonian lineaments as half-graben boundary faults and Variscan lineaments as transfer zones. On the other hand, the Early Cretaceous extensional stress was oriented north-south, oblique to the Caledonian trend, resulting in transtensional pull-apart basin geometries dominated by Variscan lineament reactivation. Subsequent north-south compressional stresses related to the Alpine orogeny reactivated both Caledonian and Variscan lineaments in a conjugate shear pattern of strike-slip deformation. This structural evolution model demonstrates the intrinsic relationship between plate tectonic setting, preexisting crustal structure and the resulting structural style. It also provides insight into the variable influence of tectonism on depositional system development. During Late Jurassic and Early Cretaceous rifting, depositional sequences were predominantly controlled by tectonics and partly conformed to empirically derived tectono-stratigraphic models of sequence development in nonmarine rifts. Depositional environments changed from fluvial to lacustrine as each rifting episode evolved through its early to active rift stages. In addition, axial transport of sediment, accentuated by regional tectonics and climatic changes, was a dominant control on facies distribution during Early Cretaceous rifting. During periods of tectonic quiescence, changes in base level were more eustatically driven and sedimentation was less influenced by preexisting crustal structure. The identification and discrimination of these controls on depositional system development in evolving rift basins aids in determining potential stratigraphic distributions within these basins

Download or read book Understanding the Tectonic Evolution of the East Orphan Basin Offshore Canada Porcupine Basin Offshore Ireland and Galicia Interior Basin Offshore Spain written by Larry Sandoval and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The East Orphan and the Porcupine basins form two highly promising basins for hydrocarbon exploration along the North Atlantic rifted margins. Despite having formed at conjugate margin positions and similar geological times, the basins appear to have fundamental differences. The objective of this project is to investigate the tectonic evolution of the East Orphan, Porcupine, and Galicia Interior basins. Analysis and interpretation of seismic reflection and well data was integrated with 3D grids of the depth-to-basement and Moho proxy to produce and restore representative geologic cross-sections. Interpretation of seismo-stratigraphic units across the East Orphan, Porcupine, and Galicia Interior basins reveals similarities in their seismic character. However, structural restoration of the selected lines indicates that basin evolution, sedimentary cover thickness, faulting style, and crustal structure differ significantly. Similarly, kinematic evolution models place Porcupine and Galicia Interior basins forming a continuous basin during Jurassic time. Based on a comprehensive analysis of the results obtained in this thesis and in the context of published kinematic evolution models, the linkage between the seemingly conjugate East Orphan and Porcupine basins seems implausible. In contrast, a potential connection between the Porcupine Basin and the Galicia Interior Basin is proposed.

Download or read book A Stratigraphic and Palynofacies Assessment of the Kimmeridgian Source Rock Interval in the Porcupine Basin Offshore Western Ireland written by Jason Anthony Keane and published by . This book was released on 1999 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: