Contents

Petrology

Vol. 27, No. 1, 2019

Reduced CO2 Fluid as an Agent of Ore-Forming Processes: A Case Study of Dolomite-Replacement Skarns at the Yoko-Dovyren Massif

A. G. Simakin, E. V. Kislov, T. P. Salova, O. Yu. Shaposhnikova and A. N. Nekrasov p. 1  abstract

2.4 Ga Mafic Dikes and Sills of Northern Fennoscandia: Petrology and Crustal Evolution

K. G. Erofeeva, A. V. Stepanova, A. V. Samsonov, Yu. O. Larionova, S. V. Egorova, A. A. Arzamastsev and E. V. Kovalchuk p. 17  abstract

Tectonic Position of the Late Neoproterozoic–Early Paleozoic Metamorphic Belts within the Tuva–Mongolian Terrane of the Central Asian Orogenic Belt

I. K. Kozakov, E. B. Salnikova, I. V. Anisimova, P. Ya. Azimov, V. P. Kovach, Yu. V. Plotkina, M. V. Stifeeva and A. M. Fedoseenko p. 43  abstract

Migration of Radiogenic Helium in the Crystal Structure of Sulfides and Prospects of Their Isotopic Dating

O. V. Yakubovich, A. M. Gedz, I. V. Vikentyev, A. B. Kotov and B. M. Gorokhovskii p. 59  abstract

Genesis of Manganese Ore Occurrences of the Olkhon Terrane the Western Baikal Region

E. V. Sklyarov, A. V. Lavrenchuk, A. E. Starikova, V. S. Fedorovsky and E. A. Khromova p. 79  abstract

Comparison of the Compositions and Microstructures of Terrestrial and Lunar Impact Glasses: Samples from the Zhamanshin Crater and Luna 16, 20, and 24 Missions

T. A. Gornostaeva, A. V. Mokhov, P. M. Kartashov and O. A. Bogatikov p. 95  abstract