| Reference Type | Journal (article/letter/editorial) |
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| Title | Babingtonite and Fe-rich Ca-Al silicates from western Southland, New Zealand |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Duggan, M. B. | Author |
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| Duggan, M. B. | Author |
| Year | 1986 (December) | Volume | 50 |
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| Page(s) | 657-665 | Issue | 358 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_50/50-358-657.pdf+ |
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| DOI | doi:10.1180/minmag.1986.050.358.11Search in ResearchGate |
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| Generate Citation Formats |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 3910 | Long-form Identifier | mindat:1:5:3910:3 |
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| GUID | 0 |
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| Full Reference | Duggan, M. B. (1986) Babingtonite and Fe-rich Ca-Al silicates from western Southland, New Zealand. Mineralogical Magazine, 50 (358). 657-665 doi:10.1180/minmag.1986.050.358.11 |
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| Plain Text | Duggan, M. B. (1986) Babingtonite and Fe-rich Ca-Al silicates from western Southland, New Zealand. Mineralogical Magazine, 50 (358). 657-665 doi:10.1180/minmag.1986.050.358.11 |
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| In | (1986, December) Mineralogical Magazine Vol. 50 (358) Mineralogical Society |
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| Abstract/Notes | AbstractBabingtonite is a common constituent of calcareous volcanic detritus in the interstices of pillow lavas from an outcrop of the Takitimu Group, western Southland, New Zealand, Associated minerals include Fe-rich prehnite (Fe/(Fe+Al) = 0.12–0.33), Fe-rich epidote (Ps24–53), grandite garnet (av. Andradite70 Grossular30), quartz, calcite, chlorite, and pumpellyite. Babingtonite shows little departure from its ideal composition other than minor Mg, Mn, and Al and a trace of Na.Textural evidence and microprobe data suggest that the babingtonite, Fe-rich epidote, calcite, and quartz formed from hydrothermal solutions by direct precipitation in open cavities and by replacement of higher temperature silicate phases (in particular plagioclase and basaltic glass) in a shallow marine volcanic environment. During subsequent burial and low-grade metamorphism babingtonite was partially replaced by prehnite, less Fe-rich epidote, grandite, and chlorite. |
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