Contents

Geochemistry International


Vol. 60, No. 1, 2022


First Age and Geochemical Data on Zircon from Riebeckite Granites of the Verkhnee Espe Rare Earth–Rare Metal Deposit, East Kazakhstan

E. V. Levashova, S. G. Skublov, T. A. Oitseva, B. A. Dyachkov, X.-H. Li, Q.-L. Li, N. V. Shatova and V. V. Shatov p. 1  abstract

Lithochemistry of Upper Vendian–Lower Cambrian Clayey Rocks in the Central Part of the Moscow Syneclise: General Features of Formation

V. N. Podkovyrov, A. V. Maslov and L. N. Kotova p. 16  abstract

Informativeness of the Phenanthrene Indicators of Organic Matter Maturity at Late Mesocatagenesis and Apocatagenesis: An Example of Material from Superdeep Hole Srednevilyuiskaya 27 in East Siberia

K. V. Dolzhenko and A. N. Fomin p. 33  abstract

Distribution and Genesis of Hydrocarbons in Water and Sediments of the Kerch Strait

I. A. Nemirovskaya, A. P. Khaustov and M. M. Redina p. 43  abstract

Coalbed Methane Accumulation Indicated by Geochemical Evidences from Fracture-filling Minerals in Huaibei coalfield, East China

Li Qingguang, Ju Yiwen, Gu Shangyi, Wu Pan, Wu Linna, Xia Peng, Yu Kun, Gao Wei and Chang Xixi p. 52  abstract

Role of Humic Organic Compounds in Controlling Equilibrium Speciation of Elements in Lakes in the Kola Peninsula: Experimental and Computation Results

M. I. Dinu and D. Yu. Baranov p. 67  abstract

Reasons for the Formation of Acidic Drainage Water in Dumps of Sulfide-Containing Rocks

V. A. Alekseyev p. 78  abstract

Organic Geochemical Characteristics of Saline Lacustrine Source Rocks: A Case Study from the Yingxi Area, Qaidam Basin, China

Lan-tian Xing, Li Xu, Ping-zhong Zhang, Jing Zhang and Peng Wang p. 92  abstract

Spring Gas Geochemistry in the Weixi-Qiaohou Fault Zone: Understanding the Fluid Characteristics of the Western Boundary of the Sichuan-Yunnan Rhombic Block

Qilin Li, Ciping Zhao, Yun Wang, Yiying Zhou and Hua Ran p. 109  abstract

Radiological Studies at the Largest Mining Centers of Armenia

G. A. Demirchyan, N. E. Movsisyan, K. I. Pyuskyulyan and O. A. Belyaeva p. 122  abstract