鄂西咸丰地区五峰组—龙马溪组火山凝灰岩发育特征及其对页岩有机质富集的影响<sup>*</sup>

鄂西咸丰地区五峰组—龙马溪组火山凝灰岩发育特征及其对页岩有机质富集的影响^*

罗凡¹, 段轲^1,³, 张号², 许露露¹, 王亿¹, 陈威¹, 杨洁¹

Development characteristics of volcanic tuff of the Wufeng-Longmaxi Formations in Xianfeng area of western Hubei and its influence on enrichment of organic matter in shale

LUO Fan¹, DUAN Ke^1,³, ZHANG Hao², XU Lulu¹, WANG Yi¹, CHEN Wei¹, YANG Jie¹

鄂西咸丰地区五峰组—龙马溪组内火山凝灰岩构造背景判别图解 a、c—Nb-Y和Rb-(Y+Nb)图解,底图据 Pearce等(1984) ;b—Zr-TiO₂图解,底图据 Pearce和Norry(1979) ;d—Nb/Yb-Th/Yb图解,底图据 Pearce和Peat(1995)