| Reference Type | Journal (article/letter/editorial) |
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| Title | A new natural occurrence of zirconolite (CaZrTi2O7) and baddeleyite (ZrO2) in basic cumulates: the Laouni layered intrusion (Southern Hoggar, Algeria) |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Lorand, J. P. | Author |
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| Cottin, J. Y. | Author |
| Year | 1987 (December) | Volume | 51 |
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| Issue | 363 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_51/51-363-671.pdf+ |
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| DOI | doi:10.1180/minmag.1987.051.363.06Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 1440 | Long-form Identifier | mindat:1:5:1440:7 |
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| GUID | 0 |
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| Full Reference | Lorand, J. P., Cottin, J. Y. (1987) A new natural occurrence of zirconolite (CaZrTi2O7) and baddeleyite (ZrO2) in basic cumulates: the Laouni layered intrusion (Southern Hoggar, Algeria) Mineralogical Magazine, 51 (363) 671-676 doi:10.1180/minmag.1987.051.363.06 |
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| Plain Text | Lorand, J. P., Cottin, J. Y. (1987) A new natural occurrence of zirconolite (CaZrTi2O7) and baddeleyite (ZrO2) in basic cumulates: the Laouni layered intrusion (Southern Hoggar, Algeria) Mineralogical Magazine, 51 (363) 671-676 doi:10.1180/minmag.1987.051.363.06 |
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| In | (1987, December) Mineralogical Magazine Vol. 51 (363) Mineralogical Society |
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| Abstract/Notes | AbstractFour grains of zirconolite and baddeleyite have been found in two plagioclase-rich adcumulates from the Laouni layered intrusion (Southern Hoggar, Algeria). Zirconolite is poor in REE; baddeleyite is chemically close to ZrO2 and contains minor amounts of Hf. They are considered to be crystallization products of pockets of intercumulus liquid. The preferential distribution of zirconolite in anorthosite is explained in terms of expulsion of the intercumulus liquid by sintering or annealing of plagioclase. The crystallization of baddeleyite reflects the sharp increase of Zr in the trapped intercumulus liquid. |
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