magmatic rock


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magmatic rock

[mag′mad·ik ′räk]
(petrology)
A rock derived from magma.
References in periodicals archive ?
The similarity of REE patterns in the layered magnetite ores and magmatic rocks is consistent with this conclusion that the layered magnetite was formed from magmatic derived hydrothermal fluids.
The alkaline magmatic rocks are related to an upwelling mantle plume that helped cause the breakup of the Rodinia supercontinent 800 million years ago at which time Broken Hill was close to the major Jinchuan and Lengquisheng Ni-Cu-PGE deposits now part of China.
Early-Middle Jurassic (180-200 Ma) magmatic rocks also have been found in other segments of the Colombian Andes (FIGURE 1), including the Santander and Santa Marta massifs (Altenberger and Concha, 2005; Cardona et al., 2011), and are also common along most of the Andean Chain (Mpodozis and Ramos, 2008; Vasquez et al., 2011)
Along most of the western margin of Patagonia there is an oblique belt of calcalkaline magmatic rocks (Halpern, 1968, 1973), interpreted as a Paleozoic magmatic arc by Ramos (1983).
Magmas and magmatic rocks. Longman scientific and Technical, pp: 266.
This will be the first time the magmatic rocks of the lower crust in the Pacific Ocean have been sampled.
In the crystalline basement, which is a continuation of the southern Finland Svecofennian orogenic belt, the metamorphic and magmatic rocks of the Lower Proterozoic Jagala complex as well as the intrusive porphyry-like potassium granites of the Neeme massif can be distinguished.
The main reason was funded on the previously mentioned "Steinmann's trinity", in which a radiolarite is deposited on a basaltic basement, and therefore, the radiolarites must be younger than the magmatic rocks.
In the second part of the book an extensive section is dedicated to the metamorphic and magmatic rocks of the Western Alps.
Remanent magnetism of mafic magmatic rocks, if primary, can provide paleo-intensities of the geomagnetic field at the time of crystallization (e.g., Macouin et al., 2003), thus providing constraints on processes in the liquid outer core.