Transformation of blueschist to greenschist facies rocks as a consequence of fluid infiltration, Sifnos, (Cyclades), Greece PDF Download

Author: M. SCHLIESTEDT
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Mark Keiter
Publisher: Geological Society of America
ISBN: 0813724813
Category : Science
Languages : en
Pages : 52

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The Island of Syros (Cyclades, Greece) is a prime locality for the study of processes active in deep levels of orogens and is world famous for its exceptionally well preserved blueschist- to eclogite-facies lithologies. Syros Island was completely remapped at a scale of 1:25,000. Detailed lithostratigraphical observations and area-wide, closely spaced structural measurements allowed a much more detailed depiction of the highly variable lithological assemblage, as well as of the complex structural evolution. Lithostratigraphical indications, such as the distribution of Mn-mineralization and sequential repetition of characteristic marker successions, suggest that the whole-rock pile of the Cycladic Blueschist Unit on Syros, including meta-ophiolites and metasediments, retains numerous primary depositional features. Magmatic activity in an Upper Cretaceous backarc environment was likely to be contemporaneous with the deposition of the sedimentary protoliths comprising the main lithological succession on Syros. The structural evolution of the Cycladic Blueschist Unit on Syros comprises multiphase isoclinal intrafolial folding and ductile thrusting, regarded as essentially burial related and terminating close to peak metamorphic conditions, either prograde or very early on the retrograde path. Especially in areas where blueschist- to eclogite-facies metamorphism is undisturbed, high-pressure fabrics are well preserved. The retrograde evolution was accompanied by heterogeneously distributed, weakly developed extensional tectonics and episodical, contractional deformation, followed by intense brittle transpressional and transtensional tectonics, disrupting the rock sequence since Miocene to subrecent times.

Author: Bernard Durand
Publisher: Geological Society of London
ISBN: 9781862390331
Category : Science
Languages : en
Pages : 584

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"The coexistence in space and time of growing mountain belts and actively extending basins poses a number of yet unsolved questions in terms of mechanics. This problem is particularly crucial in the Mediterranean regions, where all Cenozoic basins opened in the internal zones of mountain belts." "This volume brings together contributions from geologists and geophysicists in the quest to solve the complex dynamic problem posed by the Mediterranean region. It presents a wealth of new data on various topics centred on the Mediterranean region from the deep mantle structure to the detailed geometry of sedimentary basins."--BOOK JACKET.Title Summary field provided by Blackwell North America, Inc. All Rights Reserved

Author: Bruce Yardley
Publisher: Cambridge University Press
ISBN: 1108471552
Category : Science
Languages : en
Pages : 345

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A new edition of a classic text introducing metamorphic rocks and how they form, in full colour and thoroughly updated.

Author: C.E. Bond
Publisher: Geological Society of London
ISBN: 1786204290
Category : Science
Languages : en
Pages : 353

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This Special Publication is a celebration of research into the Folding and Fracturing of Rocks to mark the 50th anniversary of the publication of the seminal textbook by J. G. Ramsay. Folding and Fracturing of Rocks summarised the key structural geology concepts of the time. Through his numerical and geometric focus John pioneered and provided solutions to understanding the processes leading to the folding and fracturing of rocks. His strong belief that numerical and geometric solutions, to understanding crustal processes, should be tested against field examples added weight and clarity to his work. The basic ideas and solutions presented in the text are as relevant now as they were 50 years ago, and this collection of papers celebrates John’s contribution to structural geology. The papers explore the lasting impact of John and his work, they present case studies and a modern understanding of the process documented in the Folding and Fracturing of Rocks.

Author: G. Ian Alsop
Publisher: Geological Society of London
ISBN: 9781862391536
Category : Science
Languages : en
Pages : 396

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Faults and their deeper level equivalents, shear zones, are localized regions of intense deformation within the Earth. They are recognized at all scales from micro to plate boundary, and are important examples of the nature of heterogeneous deformation in natural rocks. Faults and shear zones are significant as they profoundly influence the location, architecture and evolution of a broad range of geological phenomenao The topography and bathymetry of the Earth's surface is marked by mountain belts and sedimentary basins that are controlled by faults and shear zoneso In addition, faults and shear zones control fluid migration and transport including hydrothermal and hydrocarbon systems. Once faults and shear zones are established, they are often long-lived features prone to multiple reactivation over very large time-scales. This collection of papers addresses lithospheric deformation and the rheology of shear zones, together with processes of partitioning and the unravelling of fault and shear zone histories.

Author: Tuncay Taymaz
Publisher: Geological Society of London
ISBN: 9781862392397
Category : Science
Languages : en
Pages : 328

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This book contains current results and ideas regarding the geodynamics of the Aegean and Anatolia.

Author: Conall Mac Niocaill
Publisher: Geological Society of London
ISBN: 9781862390515
Category : Science
Languages : en
Pages : 358

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Brings together a series of papers which explore various aspects of the deformation of continental lithosphere, covering different tectonic settings from the Palaeozoic to the present day. These include terrane accretion and juxtaposition, the exhumation of high-pressure terrains, and mechanisms of crustal extension and rifting.

Author: A.J. Barker
Publisher: Routledge
ISBN: 1317856422
Category : Science
Languages : en
Pages : 268

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A text which aims to help undergraduate students in geology to recognize and interpret metamorphic textures and microstructures in thin-section. For lecturers and postgraduates in geology and petrology, the book provides reference for the interpretation of metamorphic rocks.

Author: A. J. Barker
Publisher: Psychology Press
ISBN: 9780748739851
Category : Nature
Languages : en
Pages : 268

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Book Description
An introduction to the thin section description and interpretation of metamorphic rocks, their textures, and microstructures, for advanced undergraduate and graduate geology students. Sections cover some of the broader aspects of metamorphism and metamorphic rocks, the basics of description and interpretation of the textural/microstructural features from the simplest to the more complex, and advanced interpretations in polydeformed and polymetamorphosed rocks. Also available in paper (02414-2), $29.95. Annotation copyrighted by Book News, Inc., Portland, OR