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Phlogopite from
Kangankunde Carbonatite Complex, Balaka, Southern Region, Malawi


Locality type:Complex
Classification
Species:Phlogopite
Formula:KMg3(AlSi3O10)(OH)2
Age information
Maximum recorded age:129 Ma
Minimum recorded age:117 Ma
Sample ages:
Recorded ageGeologic TimeSampleDating method
1129 to 117 MaEarly/Lower Cretaceous - K-Ar
2123 Âą 6 MaEarly/Lower Cretaceous - K-Ar
Sample references:
1 -
Orris, Greta J.; Grauch, Richard I.; Grauch, R. I.; Orris, G. J. (2002) Rare Earth Element Mines, Deposits, and Occurrences. Open-File Report 2002-189 doi:10.3133/ofr02189
2 -
Cahen, L., & Snelling, N. J. (1966). The geochronology of equatorial Africa. North-Holland Publishing Company.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Phlogopite data
Locality Data:Click here to view Kangankunde Carbonatite Complex, Balaka, Southern Region, Malawi
Data Identifiers
Mindat Occurrence Record ID:715049
Long-form Identifier:1:3:715049:4
GUID (UUID V4):0
References
Garson, M.S. 1965. The geology of the area west of Lake Malombe, Fort Johnston District. Records, Geological Survey of Malawi, 3, 35-48.
Garson, M.S. &. Morgan, D.J. 1978. Secondary strontianite at Kangankunde carbonatite complex, Malawi. Transactions, Institution of Mining and Metallurgy, 87B, 70-73.
Garson, M.S. 1965. The geology of the area west of Lake Malombe, Fort Johnston District. Records, Geological Survey of Malawi, 3, 35-48.
Garson, M.S. &. Morgan, D.J. 1978. Secondary strontianite at Kangankunde carbonatite complex, Malawi. Transactions, Institution of Mining and Metallurgy, 87B, 70-73.
Cahen, L., & Snelling, N. J. (1966). The geochronology of equatorial Africa. North-Holland Publishing Company.
Woolley, A. R. (1969). Some aspects of fenitization with particular reference to Chilwa Island and Kangankunde, Malawi. British Museum (Natural History), Mineralogy, 2, 189-219.
Buckley, H. A., & Woolley, A. R. (1990). Carbonates of the magnesite–siderite series from four carbonatite complexes. Mineralogical Magazine, 54(376), 413-418. https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.617.6641&rep=rep1&type=pdf
ZIEGLER, U. F. (1992). Preliminary results of geochemistry, Sm-Nd and Rb-Sr studies of post-Karoo carbonatite complexes in Southern Africa. Schweizerische mineralogische und petrographische Mitteilungen, 72(1), 141-148.
Berger, Vladimir I.; Singer, Donald A.; Orris, Greta J. (2009) Carbonatites of the World, Explored Deposits of Nb and REE—Database and Grade and Tonnage Models . Open-File Report 2009-1139. US Geological Survey doi:10.3133/ofr20091139
 
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