Author: R. C. ScrivenerPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Some Notes on the Mineralisation of the Dartmoor Granite
Author: R. C. ScrivenerA Bibliography of Magmatism and Mineralization in Southwest England
Author: C. HallsThe Geology of Dartmoor
Author: Clement ReidPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 122
Book Description
Bibliography and Index of Geology
Author: Igneous Rocks of South-West England
Author: P.A. FloydPublisher: Springer Science & Business Media
ISBN: 9401115028
Category : Science
Languages : en
Pages : 257
Book Description
This volume illustrates some of the significant aspects of magmatic activity from Devonian (408 million years ago) to early Permian (270 million years ago) times in SW England. This period covers the progressive development of the Variscan mountain-building episode, from initial basin formation to final deformation and the subsequent development of a fold mountain belt - the Variscan Orogen. Both extrusive (volcanic) and intrusive (plutonic) rocks are found in the orogen, and chart the various stages of its magmatic development. The sites described in this volume are key localities selected for conservation because they are representative of the magmatic history of the orogen from initiation to stabilization. Some of the earliest volcanic activity in the Devonian is represented by submarine basaltic and rhyolitic lavas developed in subsiding basins, caused by the attenuation of the existing continental crust. In some cases, extensive rifting and attendant magmatism produced narrow zones of true oceanic crust, whereas elsewhere basaltic volcanism is related to fractures in the continental crust at the margins of the basins. After the filling of the sedimentary basins, and their deformation caused by crustal shortening (late Carboniferous Period), further activity is manifested by the emplacement of the Cornubian granites and later minor basaltic volcanism in the early Permian. Accounts of the constituent parts of this history have enriched geological literature from the nineteenth century onwards, and have contributed to the advancement and understanding of magmatic and tectonic processes.
Annual Report - Institute of Geological Sciences
Author: Institute of Geological Sciences (Great Britain)Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 284
Book Description
The Dartmoor Granite
Author: A. BrammallTourmalinization in the Dartmoor Granite
Author: A. BrammallBritish Geological Literature
Author: A Specific Example of the Nature and Relationships of Weathered Granite and Head on Dartmoor
Author: John GerrardPublisher:
ISBN: 9780704411210
Category : Granite
Languages : en
Pages : 15
Book Description