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The Ordovician Seas Of Central Pennsylvania
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Book Synopsis The Ordovician Seas of Central Pennsylvania by : Anna Whitaker
Download or read book The Ordovician Seas of Central Pennsylvania written by Anna Whitaker and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Middle and Upper Ordovician strata of the Appalachian foreland basin have served as a model system for understanding the structure of marine ecosystems on multiple scales (Bretsky, 1970; Springer and Bambach, 1985). A primary finding of these studies is that marine fossil assemblages are related to gradients in water depth and sediment carbonate content. Bretsky (1970) identified Peterson-type communities related to water depth and a siliclastic-carbonate gradient based on the abundant taxa. Springer and Bambach (1985) performed gradient analysis of fossil assemblages in Virginia and identified water depth (or factors related to water depth) as the primary control on fossil distributions. Multivariate analysis of new collections from the Reedsville shale in central Pennsylvania revealed a water-depth gradient in faunal composition that ranges from shoreface to offshore (below storm wavebase) environments. Fossil assemblages are associated with Bretskys deep-water Sowerbyella-Onniella community and the shallower Orthorhynchula-Ambonychia association. The faunal gradient in central Pennsylvania shares many characteristics with the depth gradient in Virginia. However, there are some significant differences in the shoreface environments, with the abundant brachiopod Orthorhynchula in central Pennsylvania, rather than abundant brachiopods Hebertella and Zygospira and the bivalve Ambonychia in Virginia. Differences in taxonomic composition in shoreface environments may reflect the increasing carbonate content of these environments, as the species uniquely present in south-west Virginia are located in a more carbonate-rich region of the Taconic Foreland Basin than the central Pennsylvania samples.
Book Synopsis Lower Middle Ordovician of South-central Pennsylvania by : Lawrence Carey Craig
Download or read book Lower Middle Ordovician of South-central Pennsylvania written by Lawrence Carey Craig and published by . This book was released on 1949 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Stratigraphy of the Middle Ordovician Formations of Central and South-central Pennsylvania by : Richard Montgomery Field
Download or read book The Stratigraphy of the Middle Ordovician Formations of Central and South-central Pennsylvania written by Richard Montgomery Field and published by . This book was released on 1919 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Middle Ordovician Paleogeography of the Appalachian Valley and Ridge Province, Central Pennsylvania by : Steven Wayne Newsom
Download or read book Middle Ordovician Paleogeography of the Appalachian Valley and Ridge Province, Central Pennsylvania written by Steven Wayne Newsom and published by . This book was released on 1983 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Paleoenvironmental Study of the Middle Ordovician (Black River) Interval in Central Pennsylvania by : Peter S. Frischmann
Download or read book A Paleoenvironmental Study of the Middle Ordovician (Black River) Interval in Central Pennsylvania written by Peter S. Frischmann and published by . This book was released on 1977 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Carbonates of the Lower and Middle Ordovician in Central Pennsylvania by : Henry S. Chafetz
Download or read book Carbonates of the Lower and Middle Ordovician in Central Pennsylvania written by Henry S. Chafetz and published by . This book was released on 1969 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Paleoenvironmental Study of the Middle Ordovician (Black River) Interval in Central Pennsylvania by : Peter S. Frischmann
Download or read book A Paleoenvironmental Study of the Middle Ordovician (Black River) Interval in Central Pennsylvania written by Peter S. Frischmann and published by . This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ostracodes from the Middle Ordovician Nealmont Limestone of Central Pennsylvania by : David Allen Nickey
Download or read book Ostracodes from the Middle Ordovician Nealmont Limestone of Central Pennsylvania written by David Allen Nickey and published by . This book was released on with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Lower Middle Ordovician of South-Central Pennsylvania, by Lawrence Carey Craig... [a Dissertation]. by : Lawrence Carey Craig
Download or read book Lower Middle Ordovician of South-Central Pennsylvania, by Lawrence Carey Craig... [a Dissertation]. written by Lawrence Carey Craig and published by . This book was released on 1949 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Subsurface Projection of Cambro-Ordovician Sediments in the Pennsylvania-New York Region by : Frank McKim Swartz
Download or read book Subsurface Projection of Cambro-Ordovician Sediments in the Pennsylvania-New York Region written by Frank McKim Swartz and published by . This book was released on 1950 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Martinsburg Formation (Middle and Upper Ordovician) in the Delaware Valley, Pennsylvania-New Jersey by : Avery Ala Drake
Download or read book The Martinsburg Formation (Middle and Upper Ordovician) in the Delaware Valley, Pennsylvania-New Jersey written by Avery Ala Drake and published by . This book was released on 1967 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A clarification of the stratigraphy of clastic rocks of Middle and Late Ordovician age in western New Jersey and eastern Pennsylvania"--Cover.
Book Synopsis Middle Ordovician Trentonian Carbonate Sedimentation in Central Pennsylvania by : Barbara Castens
Download or read book Middle Ordovician Trentonian Carbonate Sedimentation in Central Pennsylvania written by Barbara Castens and published by . This book was released on 1979 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Petrography of the Ordovician Limestones of Central Pennsylvania by : Romualdo DeChicchis
Download or read book The Petrography of the Ordovician Limestones of Central Pennsylvania written by Romualdo DeChicchis and published by . This book was released on 1924 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sedimentology and Origin of Upper Ordovician Clastic Rocks, Central Pennsylvania by :
Download or read book Sedimentology and Origin of Upper Ordovician Clastic Rocks, Central Pennsylvania written by and published by . This book was released on 1970 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sedimentology and Origin of Upper Ordovician Clastic Rocks, Central Pennsylvania by : Allan M. Thompson
Download or read book Sedimentology and Origin of Upper Ordovician Clastic Rocks, Central Pennsylvania written by Allan M. Thompson and published by . This book was released on 1970 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Middle Ordovician and Some Lower Devonian Conularids, with Two Orthoceratids, from Central Pennsylvania ... by : Eugene Stanley Richardson (Jr.)
Download or read book A Middle Ordovician and Some Lower Devonian Conularids, with Two Orthoceratids, from Central Pennsylvania ... written by Eugene Stanley Richardson (Jr.) and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Ordovician Earth System by : Stanley Charles Finney
Download or read book The Ordovician Earth System written by Stanley Charles Finney and published by Geological Society of America. This book was released on 2010-01-01 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Ordovician period is a significant chapter in Earth's history that included the great Mid-Ordovician biodiversification event, the Hirnantian glaciation, and long-term greenhouse conditions. Ordovician rocks are widespread on most continents and the recent finalization of a modern chronostratigraphic classification of the Ordovician system now facilitates high-resolution correlations that allow for integrated multidisciplinary research. The diverse papers comprising this volume address orogenesis, paleogeography, climate modeling, sedimentation, biodiversity, and isotopic excursions; together they promote an integrated view of the Ordovician earth system."--Publisher's description.
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