1) magnesian andesites
富镁安山岩
1.
The adakites and associated Nb-enriched basalts and magnesian andesites are the products of interaction of slab-derived melt with mantle peridotites.
俯冲带除俯冲板片脱水形成的富大离子亲石元素流体、交代地幔楔形成的岛弧钙碱性玄武岩 安山岩 英安岩 流纹岩及相应侵入岩组合外,还存在由俯冲板片熔融形成的埃达克质熔体交代地幔楔形成的埃达克岩 富铌玄武岩 富镁安山岩组合,从而构成了俯冲带的流体交代与熔体交代两大类壳幔相互作用体系及相应的岩石组合。
2) High-Mg andesite
高镁安山岩
1.
High-Mg andesites occur in Seluohe,Jilin,China,which are dated at 252±5Ma by the SHRIMP zircon U-Pb method, indicating that they were generated in the Late Permian.
吉林色洛河地区发育高镁安山岩类,SHRIMP锆石U-Pb定年结果表明它们形成于晚二叠世(252±5Ma)。
2.
High-Mg andesites (HMAs) are distinct from normal andesites that typify arc magmatism by their elevated MgO contents and Mg#.
高镁安山岩以高的镁含量和Mg#而区别于正常的岛弧安山岩。
3) boninite
['bɔni,nait]
玻镁安山岩
1.
Pyroxene crystallites in boninite matrix possess peculiar dendritic morphological featuresin the Xiangcheng area, western Sichuan.
川西乡城地区的玻镁安山岩基质中辉石微晶具有奇特的枝晶形貌。
2.
The spherolitic boninites in Xiangcheng area, Western Sichuan Province, are glassy medium lava which possesses pyroxene phenocryst and quenched texture.
川西乡城地区的球颗状玻镁安山岩是一种玻璃质、含辉石斑晶、具淬火结构的中性熔岩。
4) high-Mg ultrapotassic lavas
高镁富钾火山岩
1.
Geochemistry of late Eocene high-Mg ultrapotassic lavas from western Yunnan, China: Constraints on petrogenesis;
滇西晚始新世高镁富钾火山岩的地球化学特征及其岩石成因机制探讨
2.
Normal, reverse and oscillatory zonings are common in clinopyroxene phenocrysts in the Wozhong late Eocene high-Mg ultrapotassic lavas, western Yunnan province.
滇西莴中晚始新世高镁富钾火山岩中单斜辉石斑晶普遍出现正环带结构、反环带结构或韵律环带结构,少量为具绿色核部的单斜辉石(“绿核辉石”)。
5) K-rich trachyandesite
富钾粗面安山岩
1.
Two about 1m thick layers of K-rich trachyandesite were found in the Tuanshanzi Formation of the Changcheng System in Pinggu County adjacent to the typical Mid-Upper Proterozoic profile of Jixian County.
蓟县中-上元古界典型剖面之邻区平谷县境内,长城系团山子组连续发育两层厚度各为1m左右的富钾粗面安山岩,发育气孔构造和绳状构造。
6) Nb-enriched basalt
富铌玄武(安山)岩
1.
Geochemistry of the Nb-enriched basalt and its significances in Zaheba ophiolite melange.
扎河坝蛇绿混杂岩内富铌玄武(安山)岩的地球化学特征及其地质意义
补充资料:富安桥
位于周庄中市街东端,是古镇桥与楼联袂结构完美的独特建筑,也是江南水乡仅存的立体型桥楼合壁建筑。
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