Definition of Ultramafic. Meaning of Ultramafic. Synonyms of Ultramafic

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Definition of Ultramafic

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Meaning of Ultramafic from wikipedia

- Ultramafic rocks (also referred to as ultrabasic rocks, although the terms are not wholly equivalent) are igneous and meta-igneous rocks with a very low...
- volcanic rock Blairmorite – Rare porphyritic volcanic rock Boninite – Ultramafic extrusive rock high in both magnesium and silica Carbonatite – Igneous...
- analcite, prehnite, natrolite, scolecite, chabazite, heulandite, etc. Ultramafic tuffs are extremely rare; their characteristic is the abundance of olivine...
- ****ociations are noted: high-alumina basalts, ultrapot****ic igneous rocks, and ultramafic rocks. The basaltic occurrence of phlogopite is in ****ociation with picrite...
- metamorphic mineral derived from ultramafic rocks along with serpentinite. Anthophyllite is formed by the breakdown of talc in ultramafic rocks in the presence of...
- melt. Ideally, the stratigraphic sequence of an ultramafic-mafic intrusive complex consists of ultramafic peridotites and pyroxenites with ****ociated chromitite...
- chemical types based on silica content: felsic, intermediate, mafic, and ultramafic. Felsic or silicic lavas have a silica content greater than 63%. They...
- consisting mostly of the silicate minerals olivine and pyroxene. Peridotite is ultramafic, as the rock contains less than 45% silica. It is high in magnesium (Mg2+)...
- similar to that of light motor oil. Most ultramafic lavas are no younger than the Proterozoic, with a few ultramafic magmas known from the Phanerozoic in...
- intruded these metamorphic rocks, and also, intrusive Early Paleoproterozoic ultramafic rocks. The term Zoroaster Plutonic Complex is used for all Paleoproterozoic...