Download or read book Internal Stratigraphic Correlation of the Subsurface Potomac Formation New Castle County Delaware and Adjacent Areas in Maryland and New Jersey written by Richard N. Benson and published by . This book was released on 2006 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a new time-stratigraphic framework for the subsurface Potomac Formation of New Castle County, Delaware, part of adjacent Cecil County, Maryland, and nearby tie-in boreholes in New Jersey. The framework is based on a geophysical well-log correlation datum that approximates the contact between Upper and Lower Cretaceous sediments. This datum is constrained by age determinations based on published and unpublished results of studies of fossil pollen and spores in samples of sediment cores from boreholes in the study area. Geophysical log correlation lines established above and below the datum approximate additional chronostratigraphic surfaces. The time-stratigraphic units thus defined are not correlated parallel to the basement unconformity, as in previous practice, but instead onlap it in an updip direction. In future studies, the sedimentary facies of the Potomac Formation within each time-stratigraphic layer may be mapped and analyzed as genetically related contemporaneous units. This new stratigraphic framework will allow better delineation of the degree of lateral connection between potential aquifer sands, thus enhancing understanding of aquifer architecture.

Download or read book Chesapeake Bay Impact Structure written by Henning Dypvik and published by Geological Society of America. This book was released on 2018-10-04 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Chesapeake Bay impact structure is a well-documented example of a small group of multi-layer, marine-target impacts formed in continental shelves or beneath epeiric seas. New sedimentological and stratigraphical data and results--mainly from Chesapeake Bay brim cores (Watkins School, Langley, and Bayside)--are compared to and compiled with key crater core data"--

Download or read book Large Meteorite Impacts and Planetary Evolution IV written by W. U. Reimold and published by Geological Society of America. This book was released on 2010-01-01 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Fourth International Conference on Large Meteorite Impacts and Planetary Evolution held at the Vredefort Dome, South Africa, in Aug. 2008.

Download or read book Report of Investigations written by Delaware Geological Survey and published by . This book was released on 2006 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Early Flowers and Angiosperm Evolution written by Else Marie Friis and published by Cambridge University Press. This book was released on 2011-08-18 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recent discovery of diverse fossil flowers and floral organs in Cretaceous strata has revealed astonishing details about the structural and systematic diversity of early angiosperms. Exploring the rich fossil record that has accumulated over the last three decades, this is a unique study of the evolutionary history of flowering plants from their earliest phases in obscurity to their dominance in modern vegetation. The discussion provides comprehensive biological and geological background information, before moving on to summarise the fossil record in detail. Including previously unpublished results based on research into Early and Late Cretaceous fossil floras from Europe and North America, the authors draw on direct palaeontological evidence of the pattern of angiosperm evolution through time. Synthesising palaeobotanical data with information from living plants, this unique book explores the latest research in the field, highlighting connections with phylogenetic systematics, structure and the biology of extant angiosperms.

Download or read book First State Geology written by and published by . This book was released on 1983 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrogeologic Framework of the New Jersey Coastal Plain written by Otto S. Zapecza and published by . This book was released on 1989 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stratigraphy of the Post Potomac Cretaceous Tertiary Rocks of Central Delaware written by Richard N. Benson and published by . This book was released on 1996 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrogeologic Framework of the Coastal Plain in Maryland Delaware and the District of Columbia written by Don A. Vroblesky and published by . This book was released on 1991 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: See journals under US Geological survey. Prof. paper 1404-E.

Download or read book Ground water Resources of Southern New Castle County Delaware written by Bernard Cohen and published by . This book was released on 1962 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin Delaware Geological Survey written by Delaware Geological Survey and published by . This book was released on 1964 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Cenozoic Rocks written by Philip B. King and published by . This book was released on 1978 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Summary Appraisals of the Nation s Ground water Resources Mid Atlantic Region written by Allen Sinnott and published by . This book was released on 1978 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additional title page description: A discussion of ground water in relation to the total water resources of the region.

Download or read book The Potomac Formation written by Lester Frank Ward and published by . This book was released on 1895 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Underground Water Resources of Long Island New York written by Arthur Clifford Veatch and published by . This book was released on 1906 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Eocene of Virginia written by Benjamin Gildersleeve and published by . This book was released on 1942 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology and hydrogeology of carbonate islands written by Leonard H.L. Vacher and published by Elsevier. This book was released on 2004-04-13 with total page 967 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book on geology and hydrogeology of carbonate islands is volume 54 in the Developments in Sedimentology series.