Geochemistry of Magmatic Rocks of the Koksharovka Alkaline-Ultrabasic Massif, Primorye, and Results of Trace-Element Modeling

被引：0
|
作者：
Oktyabrsky, R. A. [1 ]
Vrzhosek, A. A. [1 ]
Lennikov, A. M. [1 ]
Yasnygina, T. A. [2 ]
Rasskazov, S. V. [2 ]
Moskalenko, E. Yu. [1 ]
Velivetskaya, T. A. [1 ]
机构：
[1] Russian Acad Sci, Far E Geol Inst, Far E Div, Vladivostok 690022, Russia
[2] Russian Acad Sci, Inst Earth Crust, Siberian Div, Irkutsk 664003, Russia
来源：
RUSSIAN JOURNAL OF PACIFIC GEOLOGY | 2008年 / 2卷 / 04期
基金：
俄罗斯基础研究基金会;
关键词：
alkaline-ultrabasic rocks; carbonatites; rare-earth element geochemistry; Koksharovka; Primorye;
D O I：
10.1134/S1819714008040052
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
New geochemical data are presented on the magmatic rocks of the Late Jurassic Koksharovka alkaline-ultrabasic massif, which is associated with deposits of vermiculite, apatite, V-bearing titanomagnetite, and placer isoferroplatinum. The REE geochemistry and strontium, oxygen, and carbon isotopic composition of carbonatites and related ijolites and pyroxenites, together with geological observations, point to the magmatic origin of the Koksharovka carbonatites. The origin of associated magmatic rocks is discussed. Trace element modeling of partial melting of mantle sources was conducted to decipher the genesis of the melts of the Koksharovka carbonatites and host titanite-kaersutite pyroxenites.
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页码：325 / 335
页数：11
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