Geodynamics of the Lithosphere: An Introduction

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Springer Science & Business Media, Jul 3, 2007 - Science - 493 pages
The large scale structure of the earth is caused by geodynamic processes which are explained using energetic, kinematic and dynamic descriptions. While "geodynamic processes" are understood to include a large variety of processes and the term is used quite loosely, the methods of their description involve well defined fields. Energetic descriptions are involved with distribu tion of energy in our planet, typically expressed in terms of heat and tempera ture. Kinematic descriptions describe movements using velocities, strains and strain rates. Dynamic descriptions indicate how stresses and forces behave. In the field, we document only the consequences of geological processes. The underlying causes are much harder to constrain directly. Nevertheless, if we want to explain the tectonic evolution of our planet, we need to interpret these causes or: "driving forces" . For this, we need to find a dynamic description of geological processes that is consistent with our observations. Our descriptions relate causes and consequences - tectonic processes with field observations. In many cases, we will use equations as a concise form to describe processes and observations in nature. As we will be dealing mostly with large scale tectonic questions, the observations that we shall use are also on a large scale. For example, we shall use observations on the elevation (Fig. 1. 1) and heat flow of mountain ranges, the thickness of continents and the water depth of the oceans.

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Topographic highs in the World Fig 1 1 p
Plate Tectonics
Heat and Temperature 51
Morphology and Deformation
Force and Rheology
Dynamic Processes
Metamorphic Processes
Eastern North America Fig A 8 p
New Zealand and South Pacific Fig A 14 p
B Mathematical Tools
Maths Refresher 423
E Answers to Problems 439
F Internet Addresses

Topographic Maps 369
The India Asia collision zone Fig A 2 p

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Page 463 - Angelier J (1984) Tectonic analysis of fault slip data sets. J Geophys Res 89: 58355848 Angelier J (1994) Fault slip analysis and palaeo-stress reconstruction.
Page 468 - Length scales for continental deformation in convergent, divergent and strike-slip environments: analytical and approximate solutions for a thin viscous sheet model.
Page vi - I dislike very much to consider any quantitative problem set by a geologist. In nearly every case the conditions given are much too vague for the matter to be in any sense satisfactory, and a geologist does not seem to mind a few millions of years in matters relating to time.
Page 464 - Athey D (1975) A preliminary thermal model for regional metamorphism in the eastern Alps. Earth Planet Sci Lett 26: 13-28 Bird P (1979) Continental delamination and the Colorado Plateau.
Page 478 - O (1991) Lateral extrusion in the Eastern Alps, part 2: structural analysis.
Page 468 - PC and Holland, TJB, 1979. Archimedes and the Tauern eclogites: the role of buoyancy in the preservation of exotic eclogite blocks. Earth. Planet. Sci. Lett., 44: 287-294.

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