1

Molecular simulation study on K⁺–Cl^-ion pair in geological fluids
Mengjia He · Xiandong Liu · Xiancai Lu · Rucheng Wang

16

Assessment of pollution levels and human health risk of heavy metals in dust deposited on Yerevan’s tree leaves (Armenia)
N. Maghakyan · G. Tepanosyan · O. Belyaeva · L. Sahakyan · A. Saghatelyan

44

Evaluation of hydrogeochemical characteristics and the impact of weathering in seepage water collected within the sedimentary formation
M.V. Prasanna · R. Nagarajan · S. Chidambaram · A. Anand Kumar · C. Thivya

52

Platinum-group element geochemistry of mafic rocks from the Dongchuan area, southwestern China
Siqi Yang · Hong Zhong · Weiguang Zhu · Wenjun Hu · Zhongjie Bai

66

Analyzing crude oils from the Junggar Basin (NW China) using comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry (GC×GC-TOFMS)
Yuce Wang · Wanyun Ma · Ni Zhou · Jiangling Ren · Jian Cao

74

The Harrat Al-Birk basalts in southwest Saudi Arabia: characteristic alkali mafic magmatism related to Red Sea rifting
Rami A. Bakhsh

89

Skarn mineralogy and its geological significance for the Tayuan (Cu-Mo)–Pb–Zn deposit, northern Daxinganling metallogenic belt
Chao Li · Tao Ren · Jian-Guo Huang · Run-Sheng Han · He-Jun Yin · Hong-Yang Zhou · Zhi-Hong Feng

102

Carbon isotopic composition and genetic types of natural gas in the Sichuan Basin, China
Jin-ning Peng · Dong-yan Wang · Guang-xiang Liu · Min Zhang · Feng-li Li

112

Temporary fluoride concentration changes in groundwater in the context of impact assessment in the Vaniyar sub-basin, South India
S. Satheeshkumar · S. Venkateswaran · R. Kannan