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Description
| - Li and ?7Li data are presented for Mongolian peridotite xenoliths. These range from fertile lherzolites, with LREE-depleted patterns and little or no metasomatism, to refractory harzburgites characterized by strong LREE-enrichments, negative HFSE anomalies and high Zr/Hf; the latter rocks were likely metasomatized by carbonate-rich melts. The majority of the peridotites show differences in Li (1-1.7 ppm) and ?7Li (+3.8 to +5.7 per thousand), but these variations are not related to any indices of metasomatism. Two xenoliths with abundant melt pockets are enriched in Li (~ 4 ppm) as a result of a metasomatic event that promoted incipient melting; those pockets have lower ?7Li than coexisting olivines. We explain this as an effect of late-stage diffusive fractionation with preferential 6Li re-distribution into the newly formed melt. Another Mongolian xenolith shows a larger ?7Li difference between cpx and melt pocket, in accord with studies of Li isotope fractionation between mantle phases.
- Li and ?7Li data are presented for Mongolian peridotite xenoliths. These range from fertile lherzolites, with LREE-depleted patterns and little or no metasomatism, to refractory harzburgites characterized by strong LREE-enrichments, negative HFSE anomalies and high Zr/Hf; the latter rocks were likely metasomatized by carbonate-rich melts. The majority of the peridotites show differences in Li (1-1.7 ppm) and ?7Li (+3.8 to +5.7 per thousand), but these variations are not related to any indices of metasomatism. Two xenoliths with abundant melt pockets are enriched in Li (~ 4 ppm) as a result of a metasomatic event that promoted incipient melting; those pockets have lower ?7Li than coexisting olivines. We explain this as an effect of late-stage diffusive fractionation with preferential 6Li re-distribution into the newly formed melt. Another Mongolian xenolith shows a larger ?7Li difference between cpx and melt pocket, in accord with studies of Li isotope fractionation between mantle phases. (en)
- Li and ?7Li data are presented for Mongolian peridotite xenoliths. These range from fertile lherzolites, with LREE-depleted patterns and little or no metasomatism, to refractory harzburgites characterized by strong LREE-enrichments, negative HFSE anomalies and high Zr/Hf; the latter rocks were likely metasomatized by carbonate-rich melts. The majority of the peridotites show differences in Li (1-1.7 ppm) and ?7Li (+3.8 to +5.7 per thousand), but these variations are not related to any indices of metasomatism. Two xenoliths with abundant melt pockets are enriched in Li (~ 4 ppm) as a result of a metasomatic event that promoted incipient melting; those pockets have lower ?7Li than coexisting olivines. We explain this as an effect of late-stage diffusive fractionation with preferential 6Li re-distribution into the newly formed melt. Another Mongolian xenolith shows a larger ?7Li difference between cpx and melt pocket, in accord with studies of Li isotope fractionation between mantle phases. (cs)
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Title
| - Links between mantle metasomatism and lithium isotopes: Evidence from glass-bearing and cryptically metasomatized xenoliths from Mongolia
- Links between mantle metasomatism and lithium isotopes: Evidence from glass-bearing and cryptically metasomatized xenoliths from Mongolia (en)
- Spojeni mezi plastovou metasomatosou a isotopy lithia: doklad ze sklonosnych a skryte metasomatisovanych xenolitu z Mongolska (cs)
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skos:prefLabel
| - Links between mantle metasomatism and lithium isotopes: Evidence from glass-bearing and cryptically metasomatized xenoliths from Mongolia
- Links between mantle metasomatism and lithium isotopes: Evidence from glass-bearing and cryptically metasomatized xenoliths from Mongolia (en)
- Spojeni mezi plastovou metasomatosou a isotopy lithia: doklad ze sklonosnych a skryte metasomatisovanych xenolitu z Mongolska (cs)
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skos:notation
| - RIV/00025798:_____/08:00000199!RIV09-MZP-00025798
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/00025798:_____/08:00000199
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - lithium isotopes,peridotite xenolith,lithospheric mantle,melt pocket,metasomatism,late-stage diffusion,Mongolia (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Earth and Planetary Science Letters
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Magna, Tomáš
- Wiechert, Uwe
- Oberli, Felix
- Ionov, Dmitri
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http://linked.open...ain/vavai/riv/wos
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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