carbonatite การใช้

• The Khanashin carbonatite in Helmand Province contains of rare earth elements.
• The finer-grained variety of carbonatite is known as alvikite.
• The autoliths consist of nepheline syenite, micromelteigite, and carbonatite.
• Of major scientific interest is the consolidated carbonatite near Altvogtsburg und Schelingen.
• The mountain is formed of carbonatite lava and dates from Miocene to Pleistocene.
• Muambe is a carbonatite body located east of Moatize in the Tete Province.
• That same year he published an essay on the chimney alkaline and carbonatite.
• Granitic rocks and also in carbonatite intrusions where it may also contain anomalous niobium.
• It has been reported from volcanic fumaroles and in association with carbonatite related veins.
• Other older carbonatite volcanoes are located in the same region, including Mount Homa.
• Units within the complex include carbonatite, nepheline syenite, phonolite, and ijolite.
• In Phalaborwa, South Africa it occurs as replacement of magnetite in a carbonatite.
• A carbonatite mine is located near the town.
• In a 1962 paper, Pecora concentrated on the carbonatite deposits in the Bearpaw Mountains.
• The intrusive members are syenite and carbonatite.
• The lava must have had a very low viscosity, possibly due to a carbonatite composition.
• Carbonatite melts are often considered to have been responsible for enrichment of mantle peridotite in incompatible elements.
• The fenite zone is up to 1 km wide with a breccia zone adjacent to the carbonatite.
• A specific type of hydrothermal alteration termed " fenitization " is typically associated with carbonatite intrusions.
• Rare earths are contained in secondary aluminophosphates, presumably derived from weathering of the Proterozoic Mount Weld carbonatite.