Grain-scale petrographic evidence for distinguishing detrital and authigenic quartz in shale: How much of a role do they play for reservoir property and mechanical characteristic?

Hongjian Zhu, Yiwen Ju, Manping Yang, Cheng Huang, Hongye Feng, Peng Qiao, Chao Ma, Xin Su, Yanjun Lü, Erxiu Shi, Jinxuan Han