冀西北宣化盆地髫髻山组粗面岩年代学、地球化学特征及其地质意义

杨济远, 胡新茁, 周敬, 齐朋超, 李泽阳, 孟家葆, 许凡, 张会彬, 齐慧云

Chronology and geochemical characteristics of trachytes in the Tiaojishan Formation, Xuanhua Basin, northwestern Hebei Province, and their geological implications

YANG Ji-Yuan, HU Xin-Zhuo, ZHOU Jing, QI Peng-Chao, LI Ze-Yang, MENG Jia-Bao, XU Fan, ZHANG Hui-Bin, QI Hui-Yun

图2 宣化盆地髫髻山组粗面岩野外露头(a~d)和显微照片(e~f)(Kfs:钾长石)

Fig.2 Field outcrops(a~d) and photomicrographs(e~f) of trachytes in the Tiaojishan Formation, Xuanhua Basin (Kfs: potassium feldspar)