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- Porphyry (geology) - Wikipedia
Porphyry ( ˈpɔːrfəri POR-fə-ree) is any of various granites or igneous rocks with coarse-grained crystals such as feldspar or quartz dispersed in a fine-grained silicate -rich, generally aphanitic matrix or groundmass
- What Is Porphyry? How Does It Form, and In Which Rocks?
Porphyry is a textural term that describes any intrusive or extrusive igneous rock with consistently larger crystals set in a finer-grained matrix Metamorphic rocks showing such a texture are known as porphyroblasts
- Porphyry - Stanford Encyclopedia of Philosophy
Porphyry wrote in just about every branch of learning practiced at the time but only a portion of his large output is extant Porphyry was an influential thinker He applied Neoplatonism to pagan religion and other spheres and is, as such, a key figure in the promulgation of Neoplatonic thought
- PORPHYRY Definition Meaning - Merriam-Webster
The meaning of PORPHYRY is a rock consisting of feldspar crystals embedded in a compact dark red or purple groundmass
- Porphyry Deposits - Geology Science
Porphyry deposits are formed through a combination of geological processes that take place over long periods of time These processes include magmatism, hydrothermal activity, and the interaction of mineral-rich fluids with the surrounding rock
- Porphyry (geology) - New World Encyclopedia
Porphyry is a variety of igneous rock consisting of large-grained crystals, such as feldspar or quartz, dispersed in a fine-grained feldspathic [1] matrix or groundmass
- Porphyry and epithermal mineral deposits | U. S. Geological Survey
Porphyry and epithermal mineral deposits form large economic ore bodies that provide the global economy with copper, molybdenum, gold, silver and other byproducts (Re, Te, Se)
- Porphyry | geological feature | Britannica
(A porphyry is an igneous rock containing conspicuous crystals, called phenocrysts, surrounded by a matrix of finer-grained minerals or glass or both ) In most rocks, both alkali and plagioclase feldspars occur as irregularly shaped grains with only a few or no crystal faces
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