Author: Robert M. ManningPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Paleomagnetism of the Lambertville Diabase and Associated Sedimentary Rocks of the Newark Basin
Author: Robert M. ManningPaleomagnetic Analysis of the Scottsville Mesozoic Rift Basin, Virginia
Author: Nathan Charles KeithlinePublisher:
ISBN:
Category : Geology
Languages : en
Pages : 86
Book Description
The Scottsville basin forms one of the westernmost Mesozoic rift basins in Virginia. The basin lies ~25 km SW of Charlottesville, VA astride the transition zone between the Eastern Blue Ridge and Western Piedmont geologic provinces. The ~110 km2 basin is a half-graben bounded by a normal fault to the northwest, and unconformably overlies phyllitic rocks of the Piedmont on its southeast margin. Sedimentary rocks in the basin range from boulder conglomerates to sandstone and siltstone red beds and are sourced primarily from the Proterozoic units of the Blue Ridge. NNW striking diabase dikes associated with the Central Atlantic Magmatic Pulse (CAMP) crosscut the sedimentary strata. The purpose of this research was to conduct paleomagnetic analysis on rocks in the basin to better understand the geologic history of the Scottsville basin and the Atlantic rift margin. Paleomagnetic data from conglomerates, siltstones, and diabases sampled across the Scottsville basin indicate post-deposition, post-deformation Middle Jurassic (160-180 Ma) magnetization ages of sedimentary rocks in the basin, contrasted with a primary depositional Late Triassic (210-220 Ma) magnetization age observed in rocks in other proximal rift basins, including the Danville, Taylorsville, and Newark basins. A possible explanation for this later magnetization age is a chemical remagnetization associated with fluid intrusion associated with the late stages of Pangea rifting.
Paleomagnetism of Sedimentary Rocks
Author: Kenneth P. KodamaPublisher: John Wiley & Sons
ISBN: 1118384156
Category : Science
Languages : en
Pages : 343
Book Description
This book describes the paleomagnetism of sediments and sedimentary rocks, how sediments and sedimentary rocks become magnetized, and how the physical and chemical processes involved can affect the accuracy of paleomagnetism. Topics covered include depositional and post-depositional remanence acquisition, the detection and correction of compaction-caused inclination shallowing, reduction diagenesis of magnetic minerals, chemical remagnetization, and rotation of remanence by grain-scale rock strain. The book also has a chapter on environmental paleomagnetism, including examples of the new technique of high-resolution rock magnetic cyclostratigraphy and its application to sedimentary sequences. By emphasising the accuracy of sedimentary paleomagnetism and the magnitude of post-depositional processes that can affect it, the book will be invaluable in the geologic interpretation of sedimentary paleomagnetic data. Paleomagnetism of Sedimentary Rocks will be welcomed by paleomagnetists, students of paleomagnetism and all Earth scientists who use sedimentary paleomagnetic data in their research. Additional resources for this book can be found at: www.wiley.com/go/kodama/paleomagnetism.
Paleomagnetism of Late Triassic and Earliest Jurassic Rocks of the Newark Basin
Author: William Karl WittePaleomagnetic and 40Ar/39Ar Results from the Grant Intrusive Breccia and Comparison to the Permian Downeys Bluff Sill--evidence for Permian Igneous Activity at Hicks Dome, Southern Illinois Basin
Author: Richard L. ReynoldsPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 22
Book Description
A multidisciplinary approach to research studies of sedimentary rocks and their constituents and the evolution of sedimentary basin, both ancient and modern.
Geological Survey Bulletin
Author: Eastern North American Mesozoic Magmatism
Author: John H. PufferPublisher: Geological Society of America
ISBN: 0813722683
Category : Science
Languages : en
Pages : 418
Book Description
Bibliography of North American Geology
Author: Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 1490
Book Description
1919/28 cumulation includes material previously issued in the 1919/20-1935/36 issues and also material not published separately for 1927/28. 1929/39 cumulation includes material previously issued in the 1929/30-1935/36 issues and also material for 1937-39 not published separately.
The Paleomagnetism of Mesozoic Diabase and the Deformational History of Southeastern Pennsylvania
Author: Karen Wagner VolkPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 306
Book Description
Author: