|
- 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 - Wikipedia
Porphyry (philosopher) (234–305), Neoplatonic philosopher Porphyrios of Philippi (fl early 4th century), bishop of the Metropolis of Philippi, Neapolis and Thasos
- Porphyry | Formation, Characteristics and Geological Significance
Porphyry is an characterized by porphyritic texture Porphyritic texture is a very common texture in igneous rocks in which larger crystals (phenocrysts) are embedded in a fine-grained groundmass
- 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 (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 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 | 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
|
|
|