Download or read book The Ordovician Successions of the Oslo Region Norway written by Alan W. Owen and published by . This book was released on 1990 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study subdivides the Ordovician successions of the Oslo region of southern Norway in terms of a modern lithostratigraphic scheme.
Download or read book Trilobites of the Middle Ordovician Elnes Formation of the Oslo Region Norway written by Thomas Hansen and published by Wiley-Blackwell. This book was released on 2009-05-11 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: The highly fossiliferous upper Darriwilian to lower Sandbian Elnes Formation of Norway presents an interesting insight into the general responses and preferences of Lower Palaeozoic faunas belonging to a stable, mud dominated middle to outer shelf environment in connection with a major transgressive to regressive system tract. The rich trilobite fauna consisting of nearly 100 taxa is closely linked to the changes in the environment, being most abundant in a muddy and siliciclastic dominated environment just above storm wave base. The fauna is highly endemic for the region and the remainder of Baltoscania. This monograph presents a taxonomic description of the total trilobite fauna, including a new genus and seven hitherto unknown species. New and extensive biostratigraphical data is presented on the trilobites together with a study on the biogeographical and ecological aspects of the faunas.
Download or read book Some Middle Ordovician Brachiopods and Trilobites from the Basin Ranges Western United States written by Reuben James Ross and published by . This book was released on 1967 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Species of 14 genera of brachiopods and 32 genera of trilobites are described to support stratigraphic conclusions presented in Geological Survey Bulletin 1180-C.
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.
Download or read book The Making of a Land written by Ivar B. Ramberg and published by Geological Society of London. This book was released on 2008 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Making of a Land - Geology of Norway" takes the reader on a journey in geological time, from primordial times to the present day. A fantastic journey from the summits of Norway's spectacular rugged and weather-beaten mountains to the riches concealed in the sedimentary rocks on the continental shelf. This book displays the treasures of Norwegian geology for everyone to see. Norway's geological resources represent the foundation of its welfare state. During several centuries first the mining, and then the oil industries have been economic mainstays, and this will continue in the future. The book presents a description both of Norway and the planet we inhabit and depend on for our survival. It is lavishly illustrated with photographs and maps from all over the country.
Download or read book Middle and Upper Ordovician Nautiloid Cephalopods of the Cincinnati Arch Region of Kentucky Indiana and Ohio written by Robert C. Frey and published by . This book was released on 1995 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stratigraphic distribution, paleoecology, biogeography, and systematic paleontology of 50 species of Ordovician nautiloids from the midcontinent.
Download or read book A Global Synthesis of the Ordovician System Part 1 written by D.A.T. Harper and published by Geological Society of London Special Publications. This book was released on 2023-06-07 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Ordovician was one of the longest of the geological periods, characterized by major magmatic and tectonic activity, an immense biodiversification, swings in climate and sea levels and the first Phanerozoic mass extinction. ‘A Global Synthesis of the Ordovician System’ is presented in two volumes in The Geological Society, Special Publications. This first volume (SP532) charts the history of the Ordovician System and explores significant advances in our understanding of its biostratigraphy, including more precise calibration of its timescale with tephra chronology and regional alignments using astrochronology and cyclostratigraphy. Changes in the world’s oceans, their shifting currents and sea levels, the biogeography of their biotas and the ambient climate are described and discussed against a background of changing palaeogeography. This first volume also includes syntheses of the Ordovician geology for most European countries, including historical key areas, such as Great Britain, Baltoscandia and Bohemia. The second volume (SP533) provides synthetic aspects of the Ordovician geology of most other parts of the world.
Download or read book Middle Ordovician Conodonts from Allochthonous Limestones at H yberget Southeastern Norwegian Caledonides written by Jan Audun Rasmussen and published by . This book was released on 1990 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Trilobite Research written by Isabel Rábano and published by IGME. This book was released on 2008 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Early Palaeozoic Biogeography and Palaeogeography written by D.A.T. Harper and published by Geological Society of London. This book was released on 2014-01-27 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Early Palaeozoic was a critical interval in the evolution of marine life on our planet. Through a window of some 120 million years, the Cambrian Explosion, Great Ordovician Biodiversification Event, End Ordovician Extinction and the subsequent Silurian Recovery established a steep trajectory of increasing marine biodiversity that started in the Late Proterozoic and continued into the Devonian. Biogeography is a key property of virtually all organisms; their distributional ranges, mapped out on a mosaic of changing palaeogeography, have played important roles in modulating the diversity and evolution of marine life. This Memoir first introduces the content, some of the concepts involved in describing and interpreting palaeobiogeography, and the changing Early Palaeozoic geography is illustrated through a series of time slices. The subsequent 26 chapters, compiled by some 130 authors from over 20 countries, describe and analyse distributional and in many cases diversity data for all the major biotic groups plotted on current palaeogeographic maps. Nearly a quarter of a century after the publication of the ‘Green Book’ (Geological Society, London, Memoir12, edited by McKerrow and Scotese), improved stratigraphic and taxonomic data together with more accurate, digitized palaeogeographic maps, have confirmed the central role of palaeobiogeography in understanding the evolution of Early Palaeozoic ecosystems and their biotas.
Download or read book The Great Ordovician Biodiversification Event written by Barry D. Webby and published by Columbia University Press. This book was released on 2004-04-14 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two of the greatest evolutionary events in the history of life on Earth occurred during Early Paleozoic time. The first was the Cambrian explosion of skeletonized marine animals about 540 million years ago. The second was the "Great Ordovician Biodiversification Event," which is the focus of this book. During the 46-million-year Ordovician Period (489–443 m.y.), a bewildering array of adaptive radiations of "Paleozoic- and Modern-type" biotas appeared in marine habitats, the first animals (arthropods) walked on land, and the first non-vascular bryophyte-like plants (based on their cryptospore record) colonized terrestrial areas with damp environments. This book represents a compilation by a large team of Ordovician specialists from around the world, who have enthusiastically cooperated to produce this first globally orientated, internationally sponsored IGCP (International Geological Correlation Program) project on Ordovician biotas. The major part is an assembly of genus- and species-level diversity data for the many Ordovician fossil groups. The book also presents an evaluation of how each group diversified through Ordovician time, with assessments of patterns of change and rates of origination and extinction. As such, it will become the standard work and data source for biotic studies on the Ordovician Period.
Download or read book Geological Survey Professional Papers written by and published by . This book was released on 1977 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Estonian Academy of Sciences Geology written by and published by . This book was released on 1997 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey Bulletin written by and published by . This book was released on 1964 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hafnium Content and Hafnium zirconium Ratio in Minerals and Rocks written by Michael Fleischer and published by . This book was released on 1955 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fluvial Sediments written by Bruce Ronald Colby and published by . This book was released on 1963 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: General description of fluvial sediments from source and entrainment through the process of transportation and deposition and brief notes on sediment measurements.
Download or read book Echinoderm Paleobiology written by William I. Ausich and published by Indiana University Press. This book was released on 2008-07-18 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dominant faunal elements in shallow Paleozoic oceans, echinoderms are important to understanding these marine ecosystems. Echinoderms (which include such animals as sea stars, crinoids or sea lilies, sea urchins, sand dollars, and sea cucumbers) have left a rich and, for science, extremely useful fossil record. For various reasons, they provide the ideal source for answers to the questions that will help us develop a more complete understanding of global environmental and biodiversity changes. This volume highlights the modern study of fossil echinoderms and is organized into five parts: echinoderm paleoecology, functional morphology, and paleoecology; evolutionary paleoecology; morphology for refined phylogenetic studies; innovative applications of data encoded in echinoderms; and information on new crinoid data sets.
