Areas of noble, rare metal and polymetallic mineralization and hydrocarbon fields on the Southern Kuril Islands and Sakhalin, in the Okhotsk Sea are located above deep fault zones in the oceanic lithosphere. Such fracture zones, including the Nosappu (Tuskarora), Iturup and Urup transform faults, are known at the southwestern end of the Kuril–Kamchatka Trench, on the northwestern margin of the Pacific Plate. Seismic tomography has established the northwestern continuation of these faults in the oceanic slab, which has been subducted into the mantle transition zone; the former has also been confirmed by focal mechanism solutions of the hypocenters of deep (up to 700 km) earthquakes. In the oceanic lithosphere the fracture zones in the areas of synfault extension enabled the formation of permeable channels that convey asthenospheric heat and fluids. In the southern Sea of Okhotsk area, these fluids penetrate the mantle wedge, initiating metasomatic processes in the sub-lithospheric mantle and the creation of primary magmatic reservoirs in the lower continental lithosphere. Further migration of these fluids enabled the formation intermediate magma chambers in the crust and of domes and ore bodies. Hydrocarbons are abiogenic and of mantle origin and occur in complex, faulted and folded Cenozoic basins.

鄂霍次克海南部千岛群岛和萨哈林岛上的贵金属，稀有金属和多金属矿化区和油气田位于大洋岩石圈深层断裂带上方。这类断裂带，包括Nosappu（Tuskarora），Iturup和Urup转换断层，在太平洋板块西北缘的Kuril-Kamchatka海沟的西南端是已知的。地震层析成像已在大洋板块中将这些断层向西北延伸，并被俯冲到地幔过渡带中。前者也被深部地震（最高700 km）震源的震源机制解所证实。在大洋岩石圈中，同裂扩展区的断裂带使得能够形成传递软流圈热和流体的可渗透通道。在鄂霍次克海南部地区，这些流体渗透到地幔楔中，在岩石圈以下的地幔中开始了变质作用过程，并在下部大陆岩石圈中形成了主要的岩浆储层。这些流体的进一步运移使地壳，穹顶和矿体中形成了岩浆中间腔。碳氢化合物是生物成因的，起源于地幔，发生在复杂，断裂和褶皱的新生代盆地中。