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Can I read Some Major Factors of Porphyry Copper Genesis on EtoBox?
Some Major Factors of Porphyry Copper Genesis by L. B. Gustafson is a Earth and Planetary Sciences article available to read on EtoBox.
What is Some Major Factors of Porphyry Copper Genesis about?
Some features of porphyry deposits in the southwestern Pacific and Australia are briefly considered. Though differences correlative with the island-arc setting of many of .these deposits are evident (more mafic rocks, less K and Mo, more Au), these deposits display a diversity of characteristics which are essentially similar to Cordilleran deposits. Common descriptive elements are combined in a wide variety of spatial and temporal combinations. The complex patterns we see are the integrated effect of a number of processes controlled by a set of at least partly independent geologic factors. Unfortunately a qualitative and partly intuitive definition of the essential common elements of these deposits and the factors which control their variation is the best we can do at the present. Common elements include porphyritic rock associations, structural style, and zoning and sequence of mineral assemblages. The geologic factors each evolve with time during the formation of a deposit and include: structure; depth, size, and timing of intrusion; ground-water incursion; volatile evolution from the magma reservoir; and wall-rock composition. This time factor is not adequately taken into accoun
Who reads Some Major Factors of Porphyry Copper Genesis?
It is typically read by researchers, students, and practitioners in Earth and Planetary Sciences.
- Author
- L. B. Gustafson
- Publisher
- Society of Economic Geologists
- Published
- 1978
- Language
- EN
- Field
- Earth and Planetary Sciences (Physical Sciences)