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Cooper, Alan F. (1996) Nb-rich baotite in carbonatites and fenites at Haast River, New Zealand. Mineralogical Magazine, 60 (400) 473-482 doi:10.1180/minmag.1996.060.400.08

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Reference TypeJournal (article/letter/editorial)
TitleNb-rich baotite in carbonatites and fenites at Haast River, New Zealand
JournalMineralogical MagazineISSN0026-461X
AuthorsCooper, Alan F.Author
Year1996 (June)Volume60
Issue400
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_60/60-400-473.pdf+
DOIdoi:10.1180/minmag.1996.060.400.08Search in ResearchGate
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Mindat Ref. ID50Long-form Identifiermindat:1:5:50:9
GUID0
Full ReferenceCooper, Alan F. (1996) Nb-rich baotite in carbonatites and fenites at Haast River, New Zealand. Mineralogical Magazine, 60 (400) 473-482 doi:10.1180/minmag.1996.060.400.08
Plain TextCooper, Alan F. (1996) Nb-rich baotite in carbonatites and fenites at Haast River, New Zealand. Mineralogical Magazine, 60 (400) 473-482 doi:10.1180/minmag.1996.060.400.08
In(1996, June) Mineralogical Magazine Vol. 60 (400) Mineralogical Society
Abstract/NotesAbstractBaotite occurs as an accessory mineral in carbonatites, fenites, and carbothermal veins associated with a lamprophyre dyke swarm in the Haast River area of south Westland, New Zealand. Carbonatites are petrogenetically evolved, with assemblages dominated by ankerite, siderite and Ba-Sr-REE carbonates. Microprobe analysis indicates baotite compositions more Nb-rich than previously recorded, with compositions close to Ba4[Ti3(Nb,Fe)5]Si4O28Cl. Ti must be partially replaced in both crystallographically-independent octahedral sites. Compositional zoning, and stoichiometric considerations suggest that the dominant octahedral substitution is the same as that described in rutile, namely 3Ti4+ β‡Œ 2Nb5+ + Fe2+. Contrary to previous suggestions, Fe in the octahedral site should, therefore, be dominated by Fe2+.The presence of baotite further documents the involvement of halogens in carbonatite magmas. In the New Zealand occurrences it is suggested that the chlorine originates from associated phonolitic magmas and is partitioned into carbonatite during liquid immiscibility.

Map of Localities

Locality Pages

LocalityCitation Details
Burke River, Westland District, West Coast Region, New Zealand
Cowan Creek, Burke River, Westland District, West Coast Region, New Zealand
Twirligig, Burke River, Westland District, West Coast Region, New Zealand
Okuru River, Westland District, West Coast Region, New Zealand
Whirligig Torrent, Okuru River, Westland District, West Coast Region, New Zealand

Mineral Pages

MineralCitation Details
UM1996-39-SiO:BaClFeNbTiin: Jambor, J.L., Pertsev, N.N., Roberts, A.C. (1997): New mineral names. American Mineralogist: 82: 433

Mineral Occurrences

LocalityMineral(s)
Cowan Creek, Burke River, Westland District, West Coast Region, New Zealandβ“˜ Aegirine, β“˜ Albite, β“˜ Ankerite, β“˜ Apatite, β“˜ Baotite, β“˜ Biotite, β“˜ Chalcopyrite, β“˜ Galena, β“˜ Ilmenite, β“˜ Magnesio-arfvedsonite, β“˜ Monazite Group, β“˜ Muscovite, β“˜ Niobium-bearing Rutile, β“˜ Norsethite, β“˜ Oellacherite, β“˜ Pyrite, β“˜ Pyrrhotite, β“˜ Rutile, β“˜ Siderite, β“˜ Sphalerite
Twirligig, Burke River, Westland District, West Coast Region, New Zealandβ“˜ Aegirine, β“˜ Albite, β“˜ Ankerite, β“˜ Baotite, β“˜ Burbankite, β“˜ Calcite, β“˜ Chalcopyrite, β“˜ Emmonite, β“˜ Galena, β“˜ Pyrite, β“˜ Sphalerite, β“˜ Strontianite
Haast River, Westland District, West Coast Region, New Zealandβ“˜ Baotite, UM1996-39-SiO:BaClFeNbTi
Haast Valley, Westland District, West Coast Region, New Zealandβ“˜ Albite, β“˜ Ankerite, β“˜ Apatite, β“˜ Arfvedsonite, β“˜ Baotite, β“˜ Calcite, β“˜ Chalcopyrite, β“˜ Dolomite, β“˜ Ilmenite, β“˜ Magnesio-riebeckite, β“˜ Monazite Group, β“˜ Norsethite, β“˜ Pyrite, β“˜ Pyrrhotite, β“˜ Quartz, β“˜ Riebeckite, β“˜ Rutile, β“˜ Siderite
Whirligig Torrent, Okuru River, Westland District, West Coast Region, New Zealandβ“˜ Ankerite, β“˜ Apatite, β“˜ Baotite, β“˜ Baryte, β“˜ Galena, β“˜ Magnesio-riebeckite, β“˜ Magnetite, β“˜ Norsethite, β“˜ Siderite, β“˜ Sphalerite

See Also

These are possibly similar items as determined by title/reference text matching only.

Cooper, A. F. (1971) Piemontite schists from Haast River, New Zealand. Mineralogical Magazine, 38 (293) 64-71 doi:10.1180/minmag.1971.038.293.08
Grew, Edward S., Cooper, Mark A., Hawthorne, Frank C. (1996) Prismatine: revalidation for boron-rich compositions in the kornerupine group. Mineralogical Magazine, 60 (400) 483-491 doi:10.1180/minmag.1996.060.400.09
Cooper, Alan F., Paterson, Lorraine A., Reid, David L. (1995) Lithium in carbonatites β€” consequence of an enriched mantle source?. Mineralogical Magazine, 59 (396) 401-408 doi:10.1180/minmag.1995.059.396.03
Cooper, Alan F., Beck, Russell J. (2009) River capture and Main Divide migration in the Haast River catchment assessed from the fluvial distribution of sodalite‐bearing dike rocks and fenites. New Zealand Journal of Geology and Geophysics, 52 (1) 27-36 doi:10.1080/00288300909509875
Cooper, Alan F., Norris, Richard J. (1995) Displacement on the Alpine Fault at Haast River, South Westland, New Zealand. New Zealand Journal of Geology and Geophysics, 38 (4) 509-514 doi:10.1080/00288306.1995.9514677
Dawson, J. B., Steele, I. M., Smith, J. V., Rivers, M. L. (1996) Minor and trace element chemistry of carbonates, apatites and magnetites in some African carbonatites. Mineralogical Magazine, 60 (400) 415-425 doi:10.1180/minmag.1996.060.400.03
Cooper, Alan F., Palin, J. Michael, Collins, Alice K. (2016) Fenitization of metabasic rocks by ferrocarbonatites at Haast River, New Zealand. Lithos, 244. 109-121 doi:10.1016/j.lithos.2015.11.035
Cooper, Alan F., Collins, Alice K., Palin, J. Michael, Spratt, John (2015) Mineralogical evolution and REE mobility during crystallisation of ancylite-bearing ferrocarbonatite, Haast River, New Zealand. Lithos, 216. 324-337 doi:10.1016/j.lithos.2015.01.005
Shelley, David, Smale, David, Tulloch, Andrew J. (1977) Boehmite in syenite from New Zealand. Mineralogical Magazine, 41 (319) 398-400 doi:10.1180/minmag.1977.041.319.16
Cooper, Alan F. (1995) Nephrite and metagabbro in the Haast Schist at Muddy Creek, northwest Otago, New Zealand. New Zealand Journal of Geology and Geophysics, 38 (3) 325-332 doi:10.1080/00288306.1995.9514660
(1996) MGM volume 60 issue 400 Cover and Front matter. Mineralogical Magazine, 60 (400) doi:10.1180/s0026461x00016595
 
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