Gravity Interpretation: Fundamentals and Application of Gravity Inversion and Geological Interpretation

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Автор:Jacoby W., Smilde P.L.

Название: Gravity Interpretation: Fundamentals and Application of Gravity Inversion and Geological Interpretation

Издательство: Springer

Год: 2009

Формат: PDF

Размер: 10.58mb

язык: английский

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Gravity interpretation involves inversion of data into models, but it is more. Gravity interpretation is used in a holistic sense going beyond inversion. Inversion is like optimization within certain a priori assumptions, i.e., all anticipated models lie in a limited domain of the a priori errors. No source should exist outside the anticipated model volume, but that is never literally true. Interpretation goes beyond by taking outside possibilities into account in the widest sense. Any neglected possibility carries the danger of seriously affecting the interpretation. Gravity interpretation pertains to wider questions such as the shape of the Earth, the nature of the continental and oceanic crust, isostasy, forces and stresses, geological structure, nding useful resources, climate change, etc. Interpretation is often used synonymously with modelling and inversion of observations toward models. Interpretation places the inversion results into the wider geological or economic context and into the framework of science and humanity. Models play a central role in science. They are images of phenomena of the physical world, for example, scale images or metaphors, enabling the human mind to describe observations and relationships by abstract mathematical means. Models served orientation and survival in a complex, partly invisible physical and social environment.