terça-feira, 13 de julho de 2010

F.G.H. Blyth, M H de Freitas “Geology for Engineers, Seventh Edition"

F.G.H. Blyth, M H de Freitas “Geology for Engineers, Seventh Edition" Butterworth-Heinemann
1984-10-01 ISBN: 0713128828 336 pages PDF 22,6 Mb
No engineering structure can be built on the ground or within it without the influence of geology being experienced by the engineer. Yet geology must remain an ancillary subject to students of engineering and it is therefore essential that their training is supported by a concise, reliable and usable text on the subject of geology and its relationship to engineering. In this book all the fundamental aspects of geology are described and explained, but within the limits thought suitable for engineers.Thus the structure of the Earth and the operation of its internal processes are described, together with the geological processes that shape and fashion the Earth and produce its rocks and soils. The commonly occurring types of rock and soil, and many types of geological structure and geological maps, are described. Throughout the book care has been taken to focus on the relationship between geology and geomechanics. For this reason emphasis has been placed on the geological processes that bear directly upon the composition, structure and mechanics of soil and rocks, and on the movement of groundwater. The descriptions of geological processes and their products are therefore used as the basis for explaining why it is important to investigate the ground and how the investigations may be conducted at ground level and underground. Specific instruction is provided on the relationship between geology and many common activities undertaken when engineering in rock and soil.

S. G. Lucas, "The Triassic Timescale"

S. G. Lucas, "The Triassic Timescale"
Geological Society of London 2010-05-10 ISBN: 186239296X 315 pages PDF 15 MB
The Mesozoic Era begins with the approximately 50-million-year-longTriassic Period, a major juncture in Earth history when thevast Pangaean supercontinent completed its assembly and beganits fragmentation, and the global biota diversified and modernizedafter the end-Permian mass extinction, the most extensive bioticdecimation of the Phanerozoic. The temporal ordering of geologicaland biotic events during Triassic time thus is critical to theinterpretation of some unique and pivotal events in Earth history.This temporal ordering is mostly based on the Triassic timescale,which has been developed and refined for nearly two centuries.This book reviews the state of the art of the Triassic timescaleand includes comprehensive analyses of Triassic radio-isotopicages, magnetostratigraphy, isotope-based and cyclostratigraphiccorrelations and timescale -relevant marine and non-marine biostratigraphy.

History Channel - How The Earth Was Made S02E01 The Grand Canyon (2009)

History Channel - How The Earth Was Made S02E01 The Grand Canyon (2009)English 720p HDTV ORENJi MKV x264 1280x720 3165Kbps 29.97fps AC3 384Kbps 2CH 48KHz 00:44:01 1.09GB
The new series HOW THE EARTH WAS MADE travels the globe to reveal the geological processes that have shaped our planet. Each episode will look at a single location and examine how the features that we see today have formed over millions of years—whether by colliding continents, volcanic eruption or the abrasive power of vast ice sheets. These processes, which intimately affect the way we live today, have been lost in the mists of time. Using the clues that were left behind, combined with expert evidence from geologists in the field, this series rolls back the millennia to see how the slow but immensely powerful forces of geology have shaped our world.