Contents

Geochemistry International

Vol. 60, No. 13, 2022

Is the Permian–Triassic Mass Extinction Related to the Siberian Traps?

N. A. Krivolutskaya, A. A. Konyshev, D. V. Kuzmin, I. K. Nikogosian, S. P. Krasheninnikov, B. I. Gongalsky, S. I. Demidova, N. L. Mironov, N. M. Svirskaya and V. S. Fedulov p. 1323  abstract

Lead Isotope Systematics of the Orogenic Gold Deposits of the Baikal-Muya Belt (Northern Transbaikalia): Contribution of the Subcontinental Lithospheric Mantle in Their Genesis

A. V. Chugaev, V. A. Vanin, I. V. Chernyshev, K. N. Shatagin, I. V. Rassokhina and A. S. Sadasyuk p. 1352  abstract

He–Ne–Ar–N2–CO2 Systematics of Fernando de Noronha Mantle Xenoliths: Confirmation of Mantle Plume Origin

A. I. Buikin, J. Hopp, L. N. Kogarko, A. B. Verchovsky and M. Trieloff p. 1380  abstract

Natural Distillation of Solutions and Opal Formation in Closed Vapor–Liquid Hydrothermal Systems

V. A. Alekseyev, V. N. Balashov, L. S. Medvedeva and A. M. Opolchentsev p. 1393  abstract

Early Silurian Trench-arc-basin System in Northwestern Margin of the North Qilian Orogen, China: Constraints from U–Pb Zircon Geochronology of Tuffs and Sandstones

Wei Liang, Chuanlong Mou and Qian Hou p. 1415  abstract

The LA–ICP–MS Zircon U–Pb Ages from the Kuzgun Formation Constrain the Temporal Distribution of the Adana Basin (Southern Turkey)

Yusuf Topak p. 1439  abstract

REE and Fluorite Mineralization Characteristic in Ryongpho Alkaline Intrusion of the Sakju Complex, DPR Korea

Hyon Chol Won, Po Hyon Hwang and Kum Chol Chon p. 1452  abstract

Responses of Geochemical Characteristics for Yellow River Channel Shifts Recorded by the Bohai Bay Sediments in Eastern China during the Last 200 Years

Wang Xiaohui, Wang Longsheng, Meng Liwei, Zeng Lin, Cui Buli, Zhan Chao, Liu Xianbin and Wang Qing p. 1462  abstract

Assessment of Isotopic Characterization (δ18O, δ2H and 3H) and Hydrochemical Processes of the Springs in Kumalar Mountain Region (Afyonkarahisar, Turkey)

Fatma Aksever, Ayşen Davraz and Simge Varol p. 1472  abstract

Comparison of Aquifer Sediment Fluoride Levels and FTIR Characteristics in Seawater Intrusion Area and Soil Salinization Areas along Coastal Plains in Shandong Province, China

Mao-Guo An, Cheng-Long Zhi, Shuang-Yuan Han, Xiang-Chao Meng, Jun Li, Ping He, Xi-Ping Feng, Na Wang, Yue-Mei Song, Teng-Fei Jiang and Qiao Chen p. 1487  abstract