Carlier, Gabriel, Lorand, Jean-Pierre (1997) First occurrence of diopside sanidine phlogopite lamproite in the Andean Cordillera: the Huacancha and Morojarja dikes, southern Peru. Canadian Journal of Earth Sciences, 34 (8) 1118-1127 doi:10.1139/e17-090
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | First occurrence of diopside sanidine phlogopite lamproite in the Andean Cordillera: the Huacancha and Morojarja dikes, southern Peru | ||
| Journal | Canadian Journal of Earth Sciences | ||
| Authors | Carlier, Gabriel | Author | |
| Lorand, Jean-Pierre | Author | ||
| Year | 1997 (August 1) | Volume | 34 |
| Issue | 8 | ||
| Publisher | Canadian Science Publishing | ||
| DOI | doi:10.1139/e17-090Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 483000 | Long-form Identifier | mindat:1:5:483000:3 |
| GUID | 0 | ||
| Full Reference | Carlier, Gabriel, Lorand, Jean-Pierre (1997) First occurrence of diopside sanidine phlogopite lamproite in the Andean Cordillera: the Huacancha and Morojarja dikes, southern Peru. Canadian Journal of Earth Sciences, 34 (8) 1118-1127 doi:10.1139/e17-090 | ||
| Plain Text | Carlier, Gabriel, Lorand, Jean-Pierre (1997) First occurrence of diopside sanidine phlogopite lamproite in the Andean Cordillera: the Huacancha and Morojarja dikes, southern Peru. Canadian Journal of Earth Sciences, 34 (8) 1118-1127 doi:10.1139/e17-090 | ||
| In | (1997, August) Canadian Journal of Earth Sciences Vol. 34 (8) Canadian Science Publishing | ||
| Abstract/Notes | Two dikes of diopside sanidine phlogopite lamproite composition, emplaced during the Plio-Quaternary, have been discovered along the main active fault system in the Altiplano region of southern Peru. These rocks have mineralogical characteristics and bulk-rock compositions typical of phlogopite lamproite (i.e., Ti-rich and Al-poor phlogopite, K-richterite, 4 < K2O/Na2O < 5, and very high contents of incompatible elements (Ba, Sr, light rare earth elements)). Moreover, these dikes show textural, mineralogical, and bulk-rock features that have been described only in phlogopite lamproite from the Leucite Hills Volcanic Province, United States, namely a microscale layering enriched in leucite or sanidine; phlogopite and clinopyroxene xenocrysts displaying higher Al contents than the phenocryst cores; late-stage aegirine; and primitive mantle normalized Ba/Th and La/Yb ratios of 2–4 and 64–109, respectively. The occurrence of diopside sanidine phlogopite lamproite argues for the presence of a thick lithospheric mantle containing apatite–phlogopite-rich clinopyroxenite beneath the Altiplano. | ||
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