基本释义:

硫英硷正长岩

网络释义

1)evergreenite,硫英硷正长岩

2)nordmarkite

['n?:dmɑ:kait],英碱正长岩

3)evergreenite,流英正长岩

4)quartz syenite,石英正长岩

5)alkali feldspar-quartz syenite,碱长石英正长岩

6)quartz-syenite-diorite,石英正长闪长岩

用法和例句

Zircon SHRIMP U-Pb dating was performed on alkali feldspar-quartz syenite and arfvedsonite alkali granite in the Cida alkali complex in the Dechang area, in the Panxi paleorift.

对产于攀西古裂谷带内的德昌地区茨达碱性杂岩体中的碱长石英正长岩和钠铁闪石碱性花岗岩进行了锆石SHRIMP U-Pb年龄测定,年龄结果分别为221Ma±6Ma和225Ma±2Ma,表明该碱性岩的结晶年龄或成岩年龄相当于晚三叠世,同时暗示攀西古裂谷的张裂时间为三叠纪。