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—龙马溪组火山凝灰岩Nb/Y—Zr/TiO₂及La/Th—Hf源岩判别图解 a—Nb/Y—Zr/TiO₂判别图解,底图据 Winchester和Floyd(1977) ;b—La/Th—Hf判别图解,底图据 Floyd和Leveridge(1987)