125

The relationship between apparent equilibrium temperature and closure temperature with application to oxygen isotope geospeedometry
NI Huaiwei

131

Strontium isotopic geochemistry of Tianqiao Pb-Zn deposit, Southwest China
DOU Song, LIU Jishun, and ZHOU Jiaxi

138

Prognostication of hydrocarbon generative potential in the onshore and offshore Niger Delta, Nigeria using TOC content and rock-eval pyrolysis techniques
Nyantakyi E.K., Li Tao, Hu Wangshui, Borkloe J.K., and Nagre R.D.

145

Geological and geochemical characteristics of basalts from Hardat Tolgoi Mine, Inner Mongolia, China
XU Hui, CHEN Jinquan , and LU Zhaohua

155

A comparison of measured ¹³⁷Cs and excess ²¹⁰Pb levels in the cultivated brown and cinnamon soils of the Yimeng Mountain area
ZHANG Yunqi, LONG Yi, YU Xingxiu, and AN Juan

163

Calcified roasting-acid leaching process of vanadium from low-grade vanadium-containing stone coal
WANG Taiying, XU Longjun, LIU Chenlun, and ZHANG Zhaodi

168

Thermal simulation of basic volcanic fluid influence on different source rocks
LI Jiyan, SHAN Xuanlong, SUN Zhe, XIE Xiaoting, and REN Yu

173

A new preparation process of coal-based magnetically activated carbon
LIU Ke, XU Longjun, and ZHANG Fukai

178

Stable isotope geochemical characteristics of dissolved inorganic carbon in the Jiulong River Estuary, Fujian Province, China
LIU Qiming, WU Qiong, CAO Yinglan, LIN Jinmei, and JIAO Yupei

183

Influencing factors for catalytic oxidation of mine gas to methanol in liquid phase
ZHU Lihua, XU Feng, BI Yewu, and SHEN Bin

187

Geochemical characteristics of REE in the Late Neo-proterozoic limestone from northern Anhui Province, China
CHEN Song, GUI Herong, and SUN Linhua

194

A comparison of the distributions of carbazoles and dibenzothiophenes in western Qaidam Basin, Northwest China
GUAN Mingming and ZHANG Chunming

201

Genesis study of high abundant 17α(H)-diahopanes in Lower Cretaceous lacustrine source rocks of the Lishu Fault Depression, Songliao Basin, Northeast China
LIU Haiyu, ZHANG Min, and LI Xing