Bayan(Arabic:بيان) is a residential area within the Hawalli governorate of Kuwait. It houses the Bayan Palace, and the American embassy complex. Arabic (; , less formally, ) is the largest member of the Semitic branch of the Afro-Asiatic language family (classification: South Central Semitic) and is closely related to Hebrew and Aramaic. ... The Hawalli(Arabic: Øولي) Governorate is one of the governorates of Kuwait. ...
The abundance of allanite in Early Proterozoic rocks in the Bayan Obo area, and the widespread low- to minable-grade monazite disseminated in ores throughout the 16 km by 2-3 km extent of the mine region, led investigators of the Institute of Geochemistry (1988) to favor a syngenetic origin for the Bayan Obo REE ores.
Although casual inspection of the complex Bayan Obo deposit may lead to the conclusion that the associations of alkali amphiboles, aegirine augite, and REE minerals are related to a carbonatite magma, the experimental data from Humphries (1984) and the younger ages of the amphiboles and augite with respect to associated REE minerals refute this.
Bayan Obo, thus, is a prime and valuable example of the importance of paragenetic sequence, rather than mineral assemblages, in discerning the history and origin of a deposit, as well as the fact that associations of REE minerals, alkali amphiboles, and aegirine augite need not invoke a carbonatite source.
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