Platinum-group elements and rhenium in mantle xenoliths from the East Sayan volcanic field (Siberia, Russia): evaluation of melt extraction and refertilization processes in lithospheric mantle of the Tuva-Mongolian massif

被引：8

作者：

Ivanov, Alexei V. ^{[1
]}

Palesskii, Stanislav V. ^{[2
]}

Demonterova, Elena I. ^{[1
]}

Nikolaeva, Irina V. ^{[2
]}

Ashchepkov, Igor V. ^{[2
]}

Rasskazov, Sergei V. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Earth Crust, Siberian Branch, Irkutsk 664033, Russia

[2] Russian Acad Sci, Inst Geol & Mineral, Siberian Branch, Novosibirsk 630090, Russia

来源：

TERRA NOVA | 2008年 / 20卷 / 06期

关键词：

D O I：

10.1111/j.1365-3121.2008.00851.x

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We determined the concentrations of platinum-group elements (PGE) and rhenium in granular spinel lherzolites entrained as xenoliths in the Late Cenozoic volcanic rocks of the East Sayan within the Sarkhoi palaeo-arc block of the Tuva-Mongolian massif. Major element, PGE and rhenium variations in the East Sayan xenoliths can be explained by impregnation of up to 15% of arc-type melt into initially depleted mantle harzburgite. Such a refertilization process probably took place in the Middle Neoproterozoic, when the Tuva-Mongolian massif was in a subduction environment. East Sayan xenoliths show close similarities to Vitim xenoliths, whose host basalts erupted within an off-cratonic crustal block. Both East Sayan and Vitim xenoliths are different from cratonic and circum-cratonic peridotite xenoliths of worldwide localities.

引用

页码：504 / 511

页数：8

共 44 条

[1] Ashchepkov IV, 2003, GEOL GEOFIZ+, V44, P1162
[2] Fractionation of the noble metals by physical processes
Ballhaus, Chris
Bockrath, Conny
Wohlgemuth-Ueberwasser, Cora
Laurenz, Vera
Berndt, Jasper
[J]. CONTRIBUTIONS TO MINERALOGY AND PETROLOGY, 2006, 152 (06) : 667 - 684
[3] Belichenko VG, 2006, RUSS GEOL GEOPHYS+, V47, P1035
[4] Belichenko VG, 2003, GEOL GEOFIZ+, V44, P554
[5] COMPOSITIONAL DISTINCTION BETWEEN OCEANIC AND CRATONIC LITHOSPHERE
BOYD, FR
[J]. EARTH AND PLANETARY SCIENCE LETTERS, 1989, 96 (1-2) : 15 - 26
[6] GEOTHERMOBAROMETRY IN 4-PHASE LHERZOLITES .2. NEW THERMOBAROMETERS, AND PRACTICAL ASSESSMENT OF EXISTING THERMOBAROMETERS
BREY, GP
KOHLER, T
[J]. JOURNAL OF PETROLOGY, 1990, 31 (06) : 1353 - 1378
[7] Rhenium-osmium isotope and platinum-group element constraints on the origin and evolution of the 1.27 Ga Muskox layered intrusion
Day, James M. D.
Pearson, D. Graham
Hulbert, Larry J.
[J]. JOURNAL OF PETROLOGY, 2008, 49 (07) : 1255 - 1295
[8] Lithospheric control on Late Cenozoic magmatism at the boundary of the Tuva-Mongolian massif, Khubsugul area, Northern Mongolia
Demonterova, E. I.
Ivanov, A. V.
Rasskazov, S. V.
Markova, M. E.
Yasnygina, T. A.
Malykh, Yu. M.
[J]. PETROLOGY, 2007, 15 (01) : 90 - 107
[9] Structural petrology of plagioclase peridotites in the west Othris mountains (Greece): Melt impregnation in mantle lithosphere
Dijkstra, AH
Drury, MR
Vissers, RLM
[J]. JOURNAL OF PETROLOGY, 2001, 42 (01) : 5 - 24
[10] ILIN AV, 1971, P REG GEOL AFR FOR A, P67

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