Abstract—Yellow volborthite Cu_2.95(V_1.91P_0.09)_Σ2O₇(OH)_1.90·2H₂O, and turquoise atacamite, Cu₂[Cl_0.98(OH)_0.02]_Σ1.00(OH)₃ have been found incrusting fractures and the surfaces of lava blocks on the Northeast slope of the Alaid volcano (Atlasov island, Kuril Islands, Russia). The Raman spectrum of volborthite contains the following bands (with assignment) in the range 900–70 cm^–1: 885 (ν₁ VO₄), 809 (ν₃ VO₄), 748 (ν₃ VO₄, libration mode of water, deformation mode of OH), 507 (ν₄ VO₄, ν₁ CuO₆), 471 (ν₄ VO₄, ν₁ CuO₆), 441 (ν₄ VO₄, ν₂ CuO₆), 345 (ν₂ VO₄), 257 (ν₅ CuO₆, ν₂ VO₄) and 241 (ν₂ VO₄) cm^–1. Volborthite is likely a supergene mineral formed as a result of primary alteration of fumarole minerals. Euchlorine and shcherbinaite could be the Cu and V sources for volborthite, respectively. Conversely, the volborthite–atacamite paragenesis could have formed in the near-surface, relatively low-temperature fumarole zone—the so-called hot hypergenesis zone, due to the interaction of primary exhalative minerals with meteoric water under the influence of volcanic gas.

摘要—在裂缝中发现了黄色火山灰 Cu _2.95 (V _1.91 P _0.09 ) _Σ2 O ₇ (OH) _1.90 ·2H ₂ O和绿松石铜矿Cu ₂ [Cl _0.98 (OH) _0.02 ] _Σ1.00 (OH) ₃以及阿莱德火山（俄罗斯千岛群岛阿特拉索夫岛）东北坡的熔岩块表面。volborthite 的拉曼光谱在 900–70 cm ^–1范围内包含以下波段（已分配） ：885 (ν ₁ VO ₄ )、809 (ν ₃ VO₄ ), 748 (ν ₃ VO ₄ , 水的振动模式, OH的变形模式), 507 (ν ₄ VO ₄ , ν ₁ CuO ₆ ), 471 (ν ₄ VO ₄ , ν ₁ CuO ₆ ), 441 (ν ₄ VO ₄ , ν ₂ CuO ₆ ), 345 (ν ₂ VO ₄ ), 257 (ν ₅ CuO ₆ , ν ₂ VO ₄ ) 和 241 (ν ₂ VO ₄ ) cm ^–1. Volborthite可能是由于喷气孔矿物的初级蚀变而形成的表生矿物。Euchlorine 和 shcherbinaite 可能分别是 volborthite 的 Cu 和 V 源。反之，火山灰岩-红铜石共生可能形成于近地表相对低温的喷气孔带，即所谓的热发育带，这是由于在火山气体的影响下原生喷出矿物与大气水相互作用。