| 31. | The genesis of this Archaean carbonatite remains contentious as it is the sole example of an Archaean carbonatite in Australia.
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| 32. | The volcano Ol Doinyo Lengai, in the East African Rift is the world's only active carbonatite volcano.
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| 33. | Eluvial supergene " enrichment of an apatite rich carbonatite in Ontario has produced a significant eluvial phosphate ore deposit.
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| 34. | In the case of carbonatite, it is improper to use a CIPW norm upon a melt rich in carbonate.
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| 35. | Along with the active Ol Doinyo Lengai, it is one of the very few carbonatite volcanoes in the world.
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| 36. | According to texture of carbonatite, can be distinguished : hypidiomorphic granular, medium-grained, pseudoporphyric and trachytic.
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| 37. | Only one carbonatite volcano is known to have erupted in historical time, the active Ol Doinyo Lengai volcano in Tanzania.
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| 38. | Smaller carbonatite sills and dikes are present in other Proterozoic mobile belts in Australia, typically as dikes and discontinuous pods.
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| 39. | Radiometric dates of 1883-1870 Ma are reported for mafic, ultramafic, carbonatite and lamprophyre intrusions within the Trough.
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| 40. | The bottom periphery, 0.5 km wide, is mostly built of feldspathic rocks and little or no carbonatite.
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