Metamorphic Crystallization investigates the upper regions of the crystalline Earth, where countless solid-state chemical changes have taken place during the long history of the planet.
Author: Ralph Kretz
Metamorphic Crystallization investigates the upper regions of the crystalline Earth, where countless solid-state chemical changes have taken place during the long history of the planet. The exploration proceeds in five stages. Firstly, a brief reminder of the importance of field, microscopic, and experimental phase-equilibrium results in metamorphic studies is given, followed by a review of classical thermodynamics as applied to minerals. Different kinds of mineral equilibria are defined, and representative natural and experimental examples of each kind are examined. The kinetics of reactions involving crystals (reaction rate, diffusion, nucleation, crystal growth), referring to certain experiments that have provided information on these microprocesses, are reviewed. Finally, the granular microstructure of natural samples (crystal shape, size, spatial distribution) together with chemical data are examined, and an interpretation of these observations in terms of mineral kinetics is pursued. This exploration intends to leave the reader more appreciative of changes which occur within the Earth, and more interested in the application of thermodynamics and kinetics in the study of these changes.
188.8.131.52 Reservoir pore spaces It is generally recognized that metamorphic rocks
are devoid of primary porosity . Metamorphic crystallization can create a certain
amount of fractures between the grains of the rock ; in those parts of the rock ...
Author: Guangming Zhai
"Petroleum Geology of China is a series about the practice and experience of exploration in China. It contains petroleum geological data and knowledge from all the main oil and gas basins and area favourable for exploration both onshore and offshore. It is the first series to publish systematically this type of works covering the history and results of China's petroleum exploration since the found of the People's Republic of China, and it will show the great achievements of the oil and gas exploration of our country."--Preface in Chinese language volumes.
Thus, the three metamorphic phases can be called as the Khul...bu, Sarung and
Phaplu thrust phases. The mineralogical occurrences in the tectonic units are
shown in Figure 25. Approximate relationship of metamorphic crystallization and
Contributed research papers.
Moreover , metamorphic crystallization , especially post - tectonic or nontectonic
crystallization , tends to reduce intergranular cavities and to heal ruptures to the
point where pore fluids might be virtually excluded . Relatively rapid reaction ...
Author: Francis J. Turner
Definition and classification of different kinds of rocks are essential in furnishing a language by which petrological concepts may be conveyed and observational data concerning rocks may be intelligibly recorded.However,there is no general agreement as to the most satisfactory basis of classification or as to the extent to which precision of definition is desirable and practicable.
METAMORPHIC RECRYSTALLIZATION IN RELATION TO PERIODS OF
MOVEMENTS Since the texture of many metamorphic rocks is the result of the
complex interaction of deformation and crystallization ( Spry , 1969 ) , the
Author: Harsh K. Gupta
Includes report of the Inter-Union Commission on Geodynamics, Working Group 3b.
suggesting that twinning of plagioclase is more frequent in rocks of moderate to
high metamorphic grade than in albite ... may reflect generally prevalent
differences in the physical conditions of magmatic and metamorphic
Vols. 34-40 (1949-55) include Contributions to Canadian mineralogy, v. 5, pts. 1-7.