Titlebook: Giant Metallic Deposits; Future Sources of In Peter Laznicka Book 20102nd edition Springer-Verlag Berlin Heidelberg 2010 economic geology.g

壓碎

Intracratonic (intraplate) orogens granites hydrothermal deposits,ly or indirectly, to granitoids emplaced into a thick, mature continental crust as a consequence of collision and crustal extension, as well as orogenic hydrothermal deposits controlled by structures and precipitated from fluids released by dehydration in depth. The emphasis is on the rock-ore assoc

STAT

brachial-plexus

Precambrian greenstone-granite terrains, of mostly Early Precambrian age, exposed in the old cratons, shields and blocks. “Schist belt” is used as a synonym, or a name for predominantly meta-sediments dominated equivalents of the “greenstone belts”. De Wit and Ashwal (1995, 1997) identified at least 260 Archean greenstone/schist belts wor

開頭

Original

Rifts, paleorifts, rifted margins, anorogenic and alkaline magmatism,f grabens of which this was a part (the East African Rift system). Since then, until the onset of plate tectonics in 1968, “riftology” became an established branch of geotectonics and a fairly mature one in terms of global inventarization and description of the visually discernible (i.e. mostly geol

粘連

Sedimentary associations and regolith,ter 5); sediments in island arcs and Andeantype continental margins (Chapters 5 and 6, respectively), sedimentary rocks in the volcanosedimentary orogens (Chapter 9) and in early Precambrian greenstone belts (Chapter 10), in Proterozoic-style intracratonic settings (Chapter 11) and in rift settings

僵硬

Higher-grade metamorphic associations,orphosed rocks in the field, except for tectonic boundaries. Most of the earlier chapters, identified by names of pre-metamorphic associations, included some metamorphic equivalents as well, through the greenschist facies at least. This is a general practice in geological organization and descriptio

fidelity

Giant deposits in geological context,-stage process to a prolonged, multistage history of gradual metal addition, reconstitution and modification. The opposite, metal dispersion (Holland and Petersen, 1981), is also at work and this can take place anywhere during the ore formation history and disperse (dissipate) a promising metal enri

excursion

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