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2. Calc-alkaline magma series - Wikipedia

   en.wikipedia.org/wiki/Calc-alkaline_magma_series

   The calc-alkaline magma series is one of two main subdivisions of the subalkaline magma series, the other subalkaline magma series being the tholeiitic series. A magma series is a series of compositions that describes the evolution of a mafic magma, which is high in magnesium and iron and produces basalt or gabbro, as it fractionally crystallizes to become a felsic magma, which is low in ...

3. Mafic - Wikipedia

   en.wikipedia.org/wiki/Mafic

   The mafic rocks also typically have a higher density than felsic rocks. The term roughly corresponds to the older basic rock class. [9] Mafic lava, before cooling, has a low viscosity, in comparison with felsic lava, due to the lower silica content in mafic magma. Water and other volatiles can more easily and gradually escape from mafic lava.

4. Magmatism along strike-slip faults - Wikipedia

   en.wikipedia.org/wiki/Magmatism_along_strike...

   Strike-slip faults have a direct effect on magmatism. They can either induce magmatism, act as a conduit to magmatism and magmatic flow, or block magmatic flow. [3][4] In contrast, magmatism can also directly impact on strike-slip faults by determining fault formation, propagation and slip. [5] Both magma and strike-slip faults coexist and ...

5. Gabbro - Wikipedia

   en.wikipedia.org/wiki/Gabbro

   Gabbro (/ ˈɡæbroʊ / GAB-roh) is a phaneritic (coarse-grained and magnesium- and iron-rich), mafic intrusive igneous rock formed from the slow cooling magma into a holocrystalline mass deep beneath the Earth 's surface. Slow-cooling, coarse-grained gabbro is chemically equivalent to rapid-cooling, fine-grained basalt.

6. Tholeiitic magma series - Wikipedia

   en.wikipedia.org/wiki/Tholeiitic_Magma_Series

   The tholeiitic magma series (/ ˌθoʊliˈaɪtɪk /) is one of two main magma series in subalkaline igneous rocks, the other being the calc-alkaline series. A magma series is a chemically distinct range of magma compositions that describes the evolution of a mafic magma into a more evolved, silica rich end member. Rock types of the tholeiitic ...

7. Dike (geology) - Wikipedia

   en.wikipedia.org/wiki/Dike_(geology)

   Dike (geology) A magmatic dike (vertical) cross-cutting horizontal layers of sedimentary rock, in Makhtesh Ramon, Israel. In geology, a dike or dyke is a sheet of rock that is formed in a fracture of a pre-existing rock body. Dikes can be either magmatic or sedimentary in origin. Magmatic dikes form when magma flows into a crack then solidifies ...