The Pre-Quaternary Sedimentary Rocks of Sweden PDF Download

Author: Assar Robert Hadding
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 888

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Author: Freek Rhebergen
Publisher: John Wiley & Sons
ISBN: 1118906640
Category : Science
Languages : en
Pages : 161

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Book Description
A newly discovered, diverse sponge fauna of early Silurian age, is described from Gotland, Sweden. This is the first Silurian sponge assemblage known from Baltica, and the only diverse Llandoverian assemblage known worldwide. The fauna includes 20 genera and 29 species, of which three genera and six species are new. Eighteen species are new to Baltica. The fauna shows strong similarities to later Silurian assemblages in Arctic Canada, but one endemic species comprises ca. 50% of the fauna. The fauna shows that lithistid sponges recovered well from the late Ordovician extinction in some areas, and became widely spread in the early Silurian. In contrast, non-lithistid sponges like, such as hexactinellids, appear to have evolved rapidly during the Late Ordovician – early Silurian interval, and some modern groups probably originated in inshore habitats.

Author: Björn Järnefors
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 700

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Author:
Publisher: Elsevier
ISBN: 0080869246
Category : Science
Languages : en
Pages : 554

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Book Description
The Swedish island of Gotland, in the Baltic, has attracted much attention of many geologists. Gotland is built up by a Middle Palaeozoic table-land, with an average height of 20-30 m, but with some higher hills in the inland and with steep cliffs along part of the coast. The Middle Palaeozoic strata consist primarily of limestones and marlstones. For a good understanding of the sedimentary succession of Gotland, it is important that the distribution of all the different kinds of sediments should be carefully mapped, and their faunal contents to be intensively studied. This book includes the survey and ideas gathered along with important data about the stratigraphy and reefs of Gotland. It presents description of the Baltic area, development of the stratigraphical subdivision of the Middle Palaeozoic of Gotland, and some tectonic and pseudo-tectonic phenomena. Stratified and unstratified sediments are presented along with a number of palaeoecological observations on Gotlandian fossils. Some comparisons of the reefs of Gotland with reefs in a few other areas are also examined.

Author: Sveriges geologiska undersökning
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 144

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Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 68

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Book Description

Author: Iron and Steel Institute
Publisher:
ISBN:
Category : Iron
Languages : en
Pages : 722

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Includes the institute's Proceedings.

Author: Iron and Steel Institute
Publisher:
ISBN:
Category : Iron industry and trade
Languages : en
Pages : 698

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Book Description

Author: Catriona D. Gibson
Publisher: Oxbow Books
ISBN: 1785709313
Category : Social Science
Languages : en
Pages : 389

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Book Description
Despite notable explorations of past dynamics, much of the archaeological literature on mobility remains dominated by accounts of earlier prehistoric gatherer-hunters, or the long-distance exchange of materials. Refinements of scientific dating techniques, isotope, trace element and aDNA analyses, in conjunction with phenomenological investigation, computer-aided landscape modeling and GIS-style approaches to large data sets, allow us to follow the movement of people, animals and objects in the past with greater precision and conviction. One route into exploring mobility in the past may be through exploring the movements and biographies of artifacts. Challenges lie not only in tracing the origins and final destinations of objects but in the less tangible ‘in between’ journeys and the hands they passed through. Biographical approaches to artifacts include the recognition that culture contact and hybridity affect material culture in meaningful ways. Furthermore, discrete and bounded ‘sites’ still dominate archaeological inquiry, leaving the spaces and connectivities between features and settlements unmapped. These are linked to an under-explored middle-spectrum of mobility, a range nestled between everyday movements and one-off ambitious voyages. We wish to explore how these travels involved entangled meshworks of people, animals, objects, knowledge sets and identities. By crossing and re-crossing cultural, contextual and tenurial boundaries, such journeys could create diasporic and novel communities, ideas and materialities.

Author: Joakim Donner
Publisher: Cambridge University Press
ISBN: 9780521018319
Category : Science
Languages : en
Pages : 224

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Book Description
This text describes how the repeated glaciation of northern continental Europe affected Scandinavia and its surrounding areas.