Sr-rich apatite from the Dangzishan leucitite-ijolite xenoliths   (Heilongjiang Province): Mineralogy and mantle-fluid metasomatism

doi:10.1007/s11434-010-4228-7

CORC > 北京大学 > 地球与空间科学学院

	Sr-rich apatite from the Dangzishan leucitite-ijolite xenoliths (Heilongjiang Province): Mineralogy and mantle-fluid metasomatism
	Zhang WenLan ; Shao JiAn ; Wang RuCheng ; Xu XiSheng ; Che XuDong ; Yang YueHeng
刊名	科学通报英文版
	2011
关键词	leucitite-ijolite xenolith Sr-rich apatite isomorphic replacement depleted-mantle fluids Dangzi Mountain Heilongjiang Province NEPHELINE-SYENITE STRONTIUM MINERALIZATION CARBONATITES PEGMATITES FENITES REE
DOI	10.1007/s11434-010-4228-7
英文摘要	Abundant apatite grains with elevated SrO content were found in leucitite-ijolite xenoliths in the Dangzi Mountain, Heilongjiang Province. Morphological and mineralogical associations, and compositional analysis of the Sr-rich apatite, were carried out using an electron microprobe. Two principal types of apatite were distinguished. One type occurs as short-prismatic crystals with Sr-rich rims, while another type with acicular or finely columnar shapes constitutes Sr-rich apatite element maps and systematic quantitative analysis of apatite revealed great variations in SrO content (0.42%-26.79%). The calculated structural formula of the measured Sr-rich apatite is: (Ca3.15-4.963Sr0.019-1.510Ba0.00-0.030Na0.006-0.108REE0.106-0.153) (P2.84-3.028Si0.009-0.094)O-12(F0.675-1.079, Cl0.000-0.256, OH0.084-0.297). Mineralogical textures of apatite implied a replacement mechanism for the Sr-rich apatite. Sr-rich rims of apatite are suggested to have formed after metasomatism (isomorphic replacement) of early fluorapatite in a Sr-, light rare-earth elements (LREE), lithophile light elements (LILE)- and volatile-rich residual melt during late magmatism. However, the acicular apatite probably directly crystallized from a Sr-rich residual melt. The Sr-Nd isotopic composition of the apatite was distinctive from that of leucitite-ijolite and its host rock. These differences, combined with mineralogical features of apatite, imply that Sr-LREE-LILE-volatile-rich components in the residual melt were derived from deep in the asthenosphere, and subsequently were enriched at a late stage in magma evolution.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000286550000011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Multidisciplinary Sciences; SCI(E); 5; ARTICLE; 1; 53-63; 56
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/241096]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Zhang WenLan,Shao JiAn,Wang RuCheng,et al. Sr-rich apatite from the Dangzishan leucitite-ijolite xenoliths (Heilongjiang Province): Mineralogy and mantle-fluid metasomatism[J]. 科学通报英文版,2011.
APA	Zhang WenLan,Shao JiAn,Wang RuCheng,Xu XiSheng,Che XuDong,&Yang YueHeng.(2011).Sr-rich apatite from the Dangzishan leucitite-ijolite xenoliths (Heilongjiang Province): Mineralogy and mantle-fluid metasomatism.科学通报英文版.
MLA	Zhang WenLan,et al."Sr-rich apatite from the Dangzishan leucitite-ijolite xenoliths (Heilongjiang Province): Mineralogy and mantle-fluid metasomatism".科学通报英文版 (2011).