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6 宣化盆地髫髻山组粗面岩球粒陨石标准化稀土元素配分图(a)和原始地幔标准化微量元素蛛网图(b)(球粒陨石标准化值据Boynton[42],原始地幔标准化值据Sun and McDonough[43])

Fig.6 Chondrite-normalized rare earth element distribution map (a) and spider diagram of primitive mantle normalized trace elements (b) of trachytes in the Tiaojishan Formation, Xuanhua Basin(standardized values for chondrites according to Bounton[42],primitive mantle normalized values according to Sun and McDonough[43])