sebastianite

The individual zircon U-Pb isotopic dating method has been applied to date the age of biotite plagioclase gneiss in this study with the age of 1826 ± 13 .

本文最近获得的黑云斜长片麻岩的单颗粒锆石U-Pb法年龄为1826±13 Ma,这是迄今获得的较为可靠的直接测年数据。

The Hongqiyingzi Complex occurred to the north side of the Chongli-Chicheng fault belt and consisted of biotite plagioclase gneiss derived from the original terrigenous clastic rocks in the continental margin.

冀北赤城红旗营子群位于崇礼-赤城断裂带的北侧,基本上是一套以形成于大陆边缘的陆源碎屑沉积岩为原岩的黑云斜长片麻岩类,其内部分布有退变榴辉岩和变质橄榄岩等构造块体。