quarta-feira, 10 de novembro de 2010

Kevin R. Evans, James S. Aber From Precambrian Rift Volcanoes to the Mississippian Shelf Margin: Geological Field Excursions in the Ozark Mountains (G

Kevin R. Evans, James S. Aber From Precambrian Rift Volcanoes to the Mississippian Shelf Margin: Geological Field Excursions in the Ozark Mountains (GSA Field Guide 17)
Geological Society of America, Incorporated | 2010 | ISBN: 0813700175 | 764 pages | PDF | 38 MB

Developed in conjunction with the 2010 GSA North-Central/South-Central Section Meeting in Branson, Missouri, USA, this new volume from The Geological Society of America includes six field trips that convey discovery and insight into the long-studied geology of the Ozark region. This book is a valuable tool not just for the meeting attendee, but to all students of geoscience interested in following in the footsteps of the book’s authors.
Trips will examine world-class lead and zinc mineral accumulations in the tri-state mining district of Kansas, Missouri, and Oklahoma; the Precambrian and Cambrian geology of Proffit Mountain as exposed by the catastrophic reservoir-collapse and flood scour that occurred along the East Fork of the Black River in December 2005; the geologic history of Riverbluff Cave in Springfield, Missouri; the rock resources of southwestern Missouri and the impact of geology on two Civil War battlefields there; and a comprehensive geologic mapping project centered along the Ozark Scenic National Riverways.



Postado por às Nenhum comentário:

R. E. Holdsworth, R. A. Strachan, J. Magloughlin, R. J. Knipe, "The Nature and Tectonic Significance of Fault Zone Weakening"

R. E. Holdsworth, R. A. Strachan, J. Magloughlin, R. J. Knipe, "The Nature and Tectonic Significance of Fault Zone Weakening"
Publisher: Geological Society of London | 2001-10 | ISBN 1862390908 | PDF | 344 pages | 29.2 MB


Many faults appear to form persistent zones of weakness that fundamentally influence the distribution, architecture and movement patterns of crustal-scale deformation and associated process in both continental and oceanic regions. This book brings together papers by an international group of Earth Scientists to discuss a broad range of topics centred upon the controls of fault weakening and the role of such faults during lithosphere deformation. Readership:Academic structural-tectonic geologists, microstructural geologists, rheologists, geophysicists and people studying geodynamics. Also, petroleum geologists, hardrock geologists, mining geologists, hydrogeologists and metamorphic geologists. Suitable for postgraduate students.





Postado por às Nenhum comentário:

M.B. McClenaghan, "Drift Exploration in Glaciated Terrain (Geological Society Special Publication)"

M.B. McClenaghan, "Drift Exploration in Glaciated Terrain (Geological Society Special Publication)"
Publisher: Geological Society | 2001 | ISBN 1862390827 | PDF | 360 pages | 13.9 MB

This volume describes the use of till geochemical and indicator mineral methods for mineral exploration in the glaciated terrain of Canada. The principles and examples described in this volume will have direct applications for exploration companies looking for diamonds, precious and base metals and uranium in glaciated parts of North America, northern Europe and Asia and mountainous regions of South America.



Postado por às Nenhum comentário:

Ken McCaffrey, Lidia Lonergan, Jamie Wilkinson, "Fractures, Fluid Flow and Mineralization (Geological Society Special Publication No. 155)"

Ken McCaffrey, Lidia Lonergan, Jamie Wilkinson, "Fractures, Fluid Flow and Mineralization (Geological Society Special Publication No. 155)"
Publisher: Geological Society of London | 1999 | ISBN 1862390347 | PDF | 328 pages | 26.4 MB

Hydrothermal mineralization is usually structurally controlled so it is important to understand the role of faulting and fracturing in enhancing rock permeability and facilitating fluid flow and mass transfer. This is the main theme of this interdisciplinary volume and the papers included are intended to pre an overview of current ideas at the interfaces of structural geology, fluid flow and mineralization research. The volume includes some speculative but provocative ideas which should stimulate a re-examination of existing concepts regarding fluid flow in fracture systems and the genesis of hydrothermal mineral deposits. It also highlights recent advances which show the importance of the development of fracture connectivity in focusing fluid flow. The volume concludes with a thematic set of papers presenting new research results on the genesis of the world famous Carboniferous base metal deposits of Ireland. This volume is intended for geoscientists studying the flow of fluids through fault, vein and fracture systems or the genesis of mineral deposits and will be of interest principally to those involved in the minerals industry and in academia.



Postado por às Nenhum comentário:

Coltorti Massimo, H. Downes, M. Gregoire, S. Y. O'Reilly Petrological Evolution of the European Lithospheric Mantle (Geological Society Special Public

Coltorti Massimo, H. Downes, M. Gregoire, S. Y. O'Reilly Petrological Evolution of the European Lithospheric Mantle (Geological Society Special Publication 337)
The Geological Society of London | 2010 | ISBN: 1862393044 | 256 pages | PDF | 5,9 MB

Several different databases and models have been developed over many years of petrological study carried out by several European and non-European groups on mantle xenoliths, peridotite massifs, ophiolites and mafic magmas spanning in age from Archaean to Recent times. This volume aims to bring together these different approaches and to integrate the geochemical perceptions of the European upper mantle. The papers include regional petrological studies of the European lithospheric mantle, from Spain to the Pannonian Basin, from Corsica and Serbia as far north as Svalbard. Six contributions are based on studies of mantle xenoliths, while the remaining three deal with ophiolitic and peridotitic complexes. A further article provides an update on the textural classification of mantle rocks using a computer-aided approach and there is an introductory overview.



Postado por às Nenhum comentário:

terça-feira, 9 de novembro de 2010

M. Davies, L. s, R. S. J. Sparks, R. M. Mellors, D. M. Pyle, M. Lanphere, B. Barreirio, "Santorini Volcano (Geological Society Special Memoir, 19)"

M. Davies, L. s, R. S. J. Sparks, R. M. Mellors, D. M. Pyle, M. Lanphere, B. Barreirio, "Santorini Volcano (Geological Society Special Memoir, 19)"
Publisher: Geological Society of London | 1999 | ISBN 1862390487 | PDF | 165 pages | 18.9 MB

Santorini is one of the most spectacular caldera volcanoes in the world. It has been the focus of significant scientific and scholastic interest because of the great Bronze Age explosive eruption that buried the Minoan town of Akrotiti. Santorini is still active. It has been dormant since 1950, but there have been several substantial historic eruptions. Because of this potential risk to life, both for the indigenous population and for the large number of tourists who visit it, Santorini has been designated one of five European Laboratory Volcanoes by the European Commission. Santorini has long fascinated geologists, with some important early work on volcanoes being conducted there. Since 1980, research groups at University, and later at the University of Bristol and Blaise Pascal University in Clermont-Ferand, have collected a large amount of data on the stratigraphy, geo, geochronology and petrology of the volcanics. The volcanic field has been remapped at a scale of 1:20 000. A remarkable picture of cyclic volcanic activity and magmatic evolution has emerged from this work. Much of this work has remained unpublished until now.

DOWNLOAD
Postado por às Nenhum comentário:

Continental Tectonics (Geological Society Special Publication)

Continental Tectonics (Geological Society Special Publication)
Publisher: Geological Society of London | ISBN: 1862390517 | edition 1999 | PDF | 300 pages | 30,2 mb

The evolution of oceanic plates is very well described by plate tectonic theory, but the study of continental tectonics is more complicated. Continental plates have a different rheology, a greater mean age, a higher heat productivity, and are more heterogeneous in composition. An understanding of continental tectonics requires, therefore, that these effects upon rigid plate behaviour be taken into account. This book 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 the processes of terrane accretion and juxtaposition, the exhumation of high-pressure terrains, and mechanisms of crustal extension and rifting. The book will be of general interest to a broad audience of earth scientists concerned with global tectonics, continental growth processes, and the deformation of the continents during collision, exhumation and extension.




Postado por às Nenhum comentário:

R. D. Larter, "Intra-Oceanic Subduction Systems: Tectonic and Magmatic Processes (Geological Society Special Publication)"

R. D. Larter, "Intra-Oceanic Subduction Systems: Tectonic and Magmatic Processes (Geological Society Special Publication)"
Geological Society of London; illustrated edition (January 1, 2003) | English | 1862391475 | 352 pages | PDF | 37.92 MB

Recycling of oceanic plate back into the Earth's interior at subduction zones is one of the key processes in Earth evolution. Volcanic arcs, which form above subduction zones, are the most visible manifestations of plate tectonics, the convection mechanism by which the Earth loses excess heat. They are probably also the main location where new continental crust is formed, the so-called 'subduction factory'. About 40% of modern subduction zones on Earth are intra-oceanic. These subduction systems are generally simpler than those at continental margins as they commonly have a shorter history of subduction and their magmas are not contaminated by ancient sialic crust. They are therefore the optimum locations for studies of mantle processes and magmatic addition to the crust in subduction zones.
This volume contains a collection of papers that exploit the relative simplicity of intra-oceanic subduction systems to provide insights into the tectonic, magmatic and hydrothermal processes associated with subduction.

Links


or

Postado por às Nenhum comentário:
Assinar: Postagens (Atom)