Carbonatite is a type of intrusive or extrusive igneous rock defined by mineralogic. source
Carbonatite is a type of intrusive or extrusive igneous rock defined by mineralogic.
Carbonatites may be confused with marble, and may require geochemical verification. source
Carbonatites may be confused with marble, and may require geochemical verification.
Carbonatites usually occur as small plugs within zoned alkalic intrusive complexes, or as dikes, sills, breccias, and veins. source
Carbonatites usually occur as small plugs within zoned alkalic intrusive complexes, or as dikes, sills, breccias, and veins.
Carbonatites are, almost exclusively, associated with continental rift-related tectonic settings. source
Carbonatites are, almost exclusively, associated with continental rift-related tectonic settings.
Carbonatite seems that there has been a steady increase in the carbonatitic igneous activity through the earth's history. source
Carbonatite seems that there has been a steady increase in the carbonatitic igneous activity through the earth's history.
Nearly all carbonatite occurrences are intrusives or subvolcanic intrusives. source
Nearly all carbonatite occurrences are intrusives or subvolcanic intrusives.
Carbonatite eruptions as lava may therefore not be as uncommon as thought. source
Carbonatite eruptions as lava may therefore not be as uncommon as thought.
Only one carbonatite volcano is known to have erupted in historical time, the active Ol Doinyo Lengai volcano in Tanzania. source
Only one carbonatite volcano is known to have erupted in historical time, the active Ol Doinyo Lengai volcano in Tanzania.
Carbonatite erupts with the lowest temperature lava in the world, at 500-600 °C. source
Carbonatite erupts with the lowest temperature lava in the world, at 500-600 °C.
The lava is natrocarbonatite dominated by nyerereite and gregoryite. source
The lava is natrocarbonatite dominated by nyerereite and gregoryite.
Carbonatites are rare, peculiar igneous rocks formed by unusual processes and from unusual source rocks. source
Carbonatites are rare, peculiar igneous rocks formed by unusual processes and from unusual source rocks.
Carbonatites are classed as calcitic sovite (coarse textured) and alvikite (finer textured) varieties or facies. source
Carbonatites are classed as calcitic sovite (coarse textured) and alvikite (finer textured) varieties or facies.
The alkali-carbonatites are termed lengaite. Examples with 50 - 70% carbonate minerals are termed silico-carbonatites. source
The alkali-carbonatites are termed lengaite. Examples with 50 - 70% carbonate minerals are termed silico-carbonatites.
Additionally carbonatites may be either enriched in magnetite and apatite or rare earth elements, fluorine and barium. source
Additionally carbonatites may be either enriched in magnetite and apatite or rare earth elements, fluorine and barium.
Carbonatites take the form of sills, lopoliths and rare dikes are reported in the Guyana Shield. source
Carbonatites take the form of sills, lopoliths and rare dikes are reported in the Guyana Shield.
The Mud Tank and Mount Weld carbonatites take the form of multi-stage cylindrical intrusive bodies with several distinct phases of carbonatite intrusion. source
The Mud Tank and Mount Weld carbonatites take the form of multi-stage cylindrical intrusive bodies with several distinct phases of carbonatite intrusion.
