segunda-feira, 3 de maio de 2010

Natural and Anthropogenic Hazards in Karst Areas: Recognition, Analysis and Mitigation

Natural and Anthropogenic Hazards in Karst Areas: Recognition, Analysis and Mitigation Publisher: Geological Society of London ISBN: 1862392242 edition 2007 PDF 202 pages 29,2 mb



The book presents an overview of the main hazards affecting karst, including collapse and subsidence phenomena, hydrological hazards and human-induced geohazards. Consideration is also given to the problems of geohazard management in karst. The geological and hydrological properties of karst terrains make them among the most fragile in the world and pose serious problems for land managers. Sustainable development in these terrains requires efforts to limit geohazards of anthropogenic origin and to recognize and mitigate against those of natural origin. Aimed at providing the reader with worldwide case studies, the contributions cover a range of geological and morphological settings. Geographically, the fourteen papers discuss very different karst areas, from North America, the Caribbean and Asia to several karst areas in Europe, including the British Isles, Spain, France and Italy.

links:

J. A. Crame Origins and Evolution of the Antarctic Biota


J. A. Crame Origins and Evolution of the Antarctic Biota Geological Society of London 1989 ISBN: 0903317443 328 pages PDF 57.2 MB
Within the last 25 years there has been a dramatic increasein our knowledge of the fossil record of Antarctica. Improvedaccess to the remotest parts of the continent, the advent ofoffshore drilling and intensive study of early expedition collectionshave all led to the accumulation of a vast amount of data thatstretches back nearly 600 Ma to the beginning of the Cambrianperiod. No longer can Antarctica be dismissed from our viewof the history of life on earth simply because so little isknown about it; it is fast becoming another crucial referencepoint for global palaeontological syntheses.If, today we have an image of Antarctica as a remote, inhospitablecontinent that supports little life, we now know that such aview cannot be projected back indefinitely through time. Abundantplant and animal fossils from a variety of periods point tomuch more benign climates and immediately raise a series ofinterconnected questions: where did such organisms come from,how long did they persist, and precisely when (and how) didthey become extinct? Can our most southerly continent throwfurther light on the long-term role of climate in driving evolutionarytrends (e.g. Valentine 1967; Vrba 1985)?It was with points such as these in mind that a mixed groupof palaeontologists, biologists, geologists and geophysicistsgathered together for an international discussion meeting onthe ‘Origins and evolution of the Antarctic biota’at the Geological Society, London on 24 and 25 May 1988

Thermochronological Methods: From Palaeotemperature Constraints to Landscape Evolution Models - Special Publication 324


Thermochronological Methods: From Palaeotemperature Constraints to Landscape Evolution Models - Special Publication 324Publisher: Geological Society of London ISBN: 1862392854 edition 2009 PDF 360 pages 10,2 mb
Thermochronology - the use of temperature-sensitive radiometric dating methods to reconstruct the thermal histories of rocks - has proved to be an important means of constraining a wide variety of geological processes. Fission track and (UTh)/He analyses of apatites, zircons and titanites are the best-established methods for reconstructing such histories over time scales of millions to hundreds of millions of years.

links:

C. Harris, J. B. Murton "Cryospheric Systems: Glaciers And Permafrost"

C. Harris, J. B. Murton "Cryospheric Systems: Glaciers And Permafrost"Geological Society of London English 2005 ISBN: 1862391750 161 pages PDF 26 MB



The introduction of the term periglacial by Lozinski in 1909 to describe the cold-climate conditions in the zone adjacent to, but beyond, the Pleistocene glaciers encouraged the separate development of geocryological and glaciological research. Geological and geomorphological processes at the interface between glaciers and permafrost have, as a result, been given less attention than they warrant, and the influence of one on the other has in many respects been neglected. This book includes a collection of papers that emphasize glacier-permafrost interactions. Papers consider permafrost and its influence on glacitectonic processes, glacial meltwater systems and ground-ice development in proglacial and ice-marginal environments. In addition, recent research findings are reported on paraglacial processes, permafrost evolution, rock glaciers, the formation of ice-wedge casts and periglacial slope evolution.It is hoped that this book will stimulate interest in the interface between glacial and periglacial systems, and encourage further collaborative research involving glaciologists and glacial geologists on the one hand, and geocryologists and permafrost scientists on the other.


Download

K. H. James, M. A. Lorente, J. L. Pindell, «The Origin and Evolution of the Caribbean Plate - Special Publication 328 »


K. H. James, M. A. Lorente, J. L. Pindell, «The Origin and Evolution of the Caribbean Plate - Special Publication 328 »Geological Society of London ISBN: 1862392889 2009 PDF 542 pages 37 Mb



This book discusses the current state of research on the geology of the area between North and South America, with a focus on the origin of the Caribbean Plate. Prevailing understanding is that the Caribbean Plate formed in the Pacific and migrated between the Americas. According to this model, the plate comprises oceanic and volcanic arc rocks. An alternative interpretation considers that the plate formed in place and includes extended continental crust. Hybrids of these ideas also exist.The papers in this volume provide regional overviews, discussions of the origins of the Caribbean Plate, and consider aspects of local geology arranged in a circum-Caribbean tour and ending in the plate interior.They address tectonics, igneous and metamorphic geology, stratigraphy and palaeontology. The objective of this wide variety of topics is to facilitate debate.The Geological Society of London




Download

D A D Evans, S M Reddy, R Mazumder, A S Collins, "Palaeoproterozoic Supercontinents and Global Evolution"


A D Evans, S M Reddy, R Mazumder, A S Collins, "Palaeoproterozoic Supercontinents and Global Evolution" Geological Society Of London 2009 ISBN: 1862392838 272 pages PDF 12,9 MB
The Palaeoproterozoic era (2500-1600 Ma) is a critical period of Earth history, with dynamic evolution from the deep planetary interior to its surface environment. Several lines of geological evidence suggest the existence of at least one pre-Rodinia supercontinent, named Nuna or Columbia, which formed near the end of Palaeoproterozoic time. Prior to this assembly, there may have been an older supercontinent (Kenorland) or perhaps only independently drifting supercratons. The tectonic records of amalgamation and dispersal of these ancient landmasses provide a framework that links processes of the deep Earth with those of its fluid envelope. The sixteen papers in this volume present reviews and new analytical data that span the geological record of Palaeoproterozoic Earth. The volume is useful as a reference book for students and professional geoscientists interested in this important period of global evolution.