ore-placer cluster with high-Hg gold mineralization in the Amur region (Russia)—V.A. Stepanov, V.G. Moyseenko...Paleozoic Au-Ag epithermal deposits (northeastern Russia)—A.V. Volkov, A.A. Sidorov, N.E. Savva, and E.E...Oxygen fugacity and porphyry mineralization: A zircon perspective of Dexing porphyry Cu deposit, China—Chan-chan...case study of samples from three Archean BIF-hosted gold deposits— Blandine Gourcerol, Daniel J. Kontak,...Carbonic fluids in the Hamadi gold deposit, Sudan: Origin and contribution to gold mineralization—Xi-hui Cheng |