Magmatism in Relation to Diverse Tectonic Settings

Magmatism in Relation to Diverse Tectonic Settings
Author: R. Chandra
Publisher: CRC Press
Total Pages: 490
Release: 1996-01-30
Genre: Science
ISBN: 9789054102755

This papers of this volume were invited under the general theme "Magmatism in relation to diverse tectonic settings". The work seeks to incorporate current developments in the field of magmatic activity related to collision and subduction of plates, as well as intra-plate phenomenon.

Landscapes and Landforms of Scotland

Landscapes and Landforms of Scotland
Author: Colin K. Ballantyne
Publisher: Springer Nature
Total Pages: 505
Release: 2021-08-24
Genre: Science
ISBN: 303071246X

This book provides an appealing and informative overview of the outstanding landforms and landscapes of Scotland. Scotland is internationally renowned for the diversity of its geology, landforms and landscapes. The rock record spans most of geological time, from the Archaean to the Palaeogene, and represents the outcome of tectonic plate movements, associated geological processes, and sea-level and climate changes. Scotland incorporates primeval gneiss landscapes, the deeply eroded roots of the Caledonian mountain chain, landscapes of extensional tectonics and rifting, and eroded remnants of volcanic complexes that were active when the North Atlantic Ocean opened during the Palaeogene. The present relief reflects uplift and deep weathering during the Cenozoic, strongly modified during successive episodes of Pleistocene glaciation. This striking geodiversity is captured in this book through 29 chapters devoted to the evolution of Scotland’s scenery and locations of outstanding geomorphological significance, including ancient palaeosurfaces, landscapes of glacial erosion and deposition, evidence of postglacial landscape modification by landslides, rivers and wind, and coastal geomorphology. Dedicated chapters focus on Ice Age Scotland and the associated landscapes, which range from alpine-type mountains and areas of selective glacial erosion to ice-moulded and drift-covered lowlands, and incorporate accounts of internationally renowned sites such as the ‘Parallel Roads’ of Glen Roy, the Cairngorm Mountains and the inselbergs of Assynt. Other chapters consider the record of postglacial rock-slope failures, such as the famous landslides of Trotternish on Skye, and the record of fluvial changes since deglaciation. The sea-level history of Scotland is addressed in terms of its raised and submerged shorelines, while several chapters discuss the contrasting coastal landscapes, which range from the spectacular sea cliffs of Shetland and Orkney to the beaches and dunes of eastern Scotland. The role of geoconservation in preserving Scotland’s outstanding geomorphological heritage is outlined in the final chapter. The book offers an up-to-date and richly illustrated reference guide for geomorphologists, other Earth scientists, geographers, conservationists, and all those interested in geology, physical geography, geomorphology, geotourism, geoheritage and environmental protection.

Sedimentation and Tectonics in Rift Basins Red Sea:- Gulf of Aden

Sedimentation and Tectonics in Rift Basins Red Sea:- Gulf of Aden
Author: B.H. Purser
Publisher: Springer Science & Business Media
Total Pages: 700
Release: 2012-12-06
Genre: Science
ISBN: 9401149305

Sedimentation and Tectonics in Rift Basins: Red Sea - Gulf of Aden presents new case studies and synthesises the results of recent research on the sedimentological evolution of the Red Sea - Gulf of Aden rift system. This rift basin is generally regarded as the best natural geological laboratory in the world in which to study the processes of rift formation. Uplift of the rift margins in an arid climate results in extensive three-dimensional exposures of pre- and syn-rift strata and associated structures. These serve as analogues for the understanding and hydrocarbon exploration of deeper buried rift-systems on continental margins such as the North Sea and the Atlantic margins. The Red Sea - Gulf of Aden rift is also exceptional in that its stratigraphy spans all stages from pre-rift environments, syn-rift continental to marine environments through the rift to drift transition to post-rift sea-floor spreading. The work is arranged in eight sections: following a review of the sedimentology and stratigraphy of rift basins, the magmatism and structural evolution of the Red Sea - Gulf of Aden rift is reviewed. Subsequently, new case studies are presented of the early rifting environment, syn-rift sedimentation, tectonics and diagenesis, evaporites and salt tectonics. Post-rift sediments of the axial trough are then discussed along with studies of reefs, coastal zone and shelf sediments, and the tectonic geomorphology of the rift margin escarpment. This work results from extensive new research in the rift basin largely carried out under collaborative research projects by European and Middle Eastern geologists. It will be an invaluable reference work for geoscientists in the hydrocarbon, groundwater and mineral extraction industries, as well as for researchers in university departments of earth sciences, mining and physical geography.