Contents

Geochemistry International

Vol. 57, No. 12, 2019

Conditions of Accumulation and Fractionation of Zirconium and Hafnium in the Alkaline–Carbonatite Systems

L. N. Kogarko p. 1243  abstract

Amphibolites of the Metamorphic Basement of Wrangel Island: Age, Nature of the Protolith, and Conditions of Metamorphism

S. D. Sokolov, S. A. Silantyev, A. V. Moiseev, M. I. Tuchkova and V. E. Verzhbitsky p. 1249  abstract

Metallogenic Regularity and Prospecting Predictions of Gold Deposits in China

J. L. Xue, Z. S. Pang, Z. Z. Cheng, H. Chen and W. Tao p. 1276  abstract

Generation Processes and Geochemical Analysis of Simulated Biogenic Coalbed Methane from Lignite

A. K. Wang and P. Shao p. 1295  abstract

Equilibrium and Kinetic Simulation of Groundwater Deironing and Demanganation

B. N. Ryzhenko, M. V. Mironenko and O. A. Limantseva p. 1306  abstract

Content of Technogenic Radionuclides in Water, Bottom Sediments, and Benthos of the Kara Sea and Shallow Bays of the Novaya Zemlya Archipelago

T. A. Goryachenkova, A. P. Borisov, G. Yu. Solov’eva, E. A. Lavrinovich, I. E. Kazinskaya, A. N. Ligaev, A. V. Travkina and A. P. Novikov p. 1320  abstract

Origin of Underground Brine in Potassium-Bearing Strata in Khammouane, Central Laos

Zhanjie Qin, Qingkuan Li, Qishun Fan, Xiangru Zhang, Yongsheng Du, Haicheng Wei, Qin Yuan, Jianping Wang and Fashou Shan p. 1327  abstract

Short Communications

Correlation of High-Calcium Silica-Undersaturated Complex of the Maymecha–Kotuy Province with Siberian Flood Basalts: New Age Data on the Kugda Massif (Polar Siberia)

M. O. Anosova, Yu. A. Kostitsyn and L. N. Kogarko p. 1339  abstract

Thermodynamic Properties of Montecellite

L. P. Ogorodova, Yu. D. Gritsenko, M. F. Vigasina, A. Yu. Bychkov, D. A. Ksenofontov and L. V. Melchakova p. 1343  abstract

Cesium-137 Concentration in the Surface Waters of Eurasian Seas: Evidence from the Expedition Research of 2017

O. N. Miroshnichenko, A. A. Paraskiv and S. B. Gulin p. 1349  abstract

Estimation of the Formation Conditions of the Bishuli Thermomineral Water (Crimean Plain) by Isotope Geochemical Methods

G. N. Amelichev, I. V. Tokarev and S. V. Tokarev p. 1355  abstract