New indexes and charts for genesis identification of multiple natural gases

LI Jian^{1, 2}, LI Zhisheng^{1, 2}, WANG Xiaobo^{1, 2}, WANG Dongliang³, XIE Zengye^{1, 2}, LI Jin^{1, 2}, WANG Yifeng^{1, 2}, HAN Zhongxi^{1, 2}, MA Chenghua^{1, 2}, WANG Zhihong^{1, 2}, CUI Huiying^{1, 2}, WANG Rong^{1, 2}, HAO Aisheng^{1, 2}