Sediment-hosted stratiform copper–silver mineralization is common in Middle Creston strata of southeastern British Columbia, a correlative lithostratigraphic unit of the Ravalli Group of western Montana. The Ravalli Group hosts the largest sediment-hosted stratiform copper–silver deposits of the Belt-Purcell Supergroup. Strata of the Belt-Purcell Supergroup accumulated between ∼1540 and 1300 Ma in a pericratonic rift basin (Belt-Purcell basin) constructed over Archean and Paleoproterozoic blocks of Laurentia. The basin underwent several events of deformation and metamorphism at ∼1380–1325 Ma (East Kootenay orogeny), ∼1200–1000 Ma (Grenvillian), and 900–800 Ma (Goat River orogeny) prior to Meso-Cenozoic Cordilleran tectonism. U–Pb geochronology of detrital zircons from Middle Creston rocks define a maximum age of deposition of ∼1470 Ma, in agreement with the established age range for Belt-Purcell Supergroup in southeastern British Columbia.

Molybdenite is locally part of the sediment-hosted stratiform copper–silver mineralization in the region, either as isolated grains within mineralized strata or in paragenetic sequence with the cupriferous sulfides. Re–Os geochronology on molybdenite reveals repetitive episodes of fluid flow through Middle Creston strata in the study area, with principal events at 1170–1140 and 1043–990 Ma. Paragenetically constrained molybdenite, in growth sequence with bornite and chalcocite, yields an age of 1043 ± 6 Ma. Hence, the fluid responsible for the sediment-hosted stratiform copper–silver mineralization in southeastern British Columbia permeated the host sequence ∼440 m.yr. after its deposition, coincident with the Grenville-age metamorphic event at ∼1200–1000 Ma. Such tectono-thermal activity extended along the western margin of Laurentia beyond the limits of the Belt-Purcell basin, and was a far-field response to orogen-scale collisions taking place off Laurentia during Rodinia assembly.

沉积物层状铜银矿化在不列颠哥伦比亚省东南部的中克雷斯顿地层中很常见，这是蒙大拿州西部拉瓦尔利群的一个相关岩性地层学单元。拉瓦尔利集团拥有贝尔特-珀塞尔超级集团中最大的沉积物状层状铜-银矿床。Belt-Purcell超群的地层聚集在大约1540至1300 Ma之间，构造在Laurentia的太古宙和古元古代块体上的克拉通裂谷（Belt-Purcell盆地）中。在中新生代科迪勒构造运动之前，该盆地在〜1380-1325 Ma（东库特尼造山带），〜1200–1000 Ma（格伦维利）和900-800 Ma（山羊河造山）经历了几次变形和变质事件。中克里斯顿岩石碎屑锆石的U–Pb年代学定义最大沉积年龄为〜1470 Ma，

辉钼矿是该地区以沉积物为主体的层状铜-银矿化的一部分，既可以作为矿化层中的孤立颗粒，也可以与铜粉状硫化物共生。辉钼矿的Re-Os年代学揭示了在研究区域中部Creston地层中流体反复流动的事件，主要事件发生在1170-1140 Ma和1043-990 Ma。受共生约束的辉钼矿，其生长顺序为斑铁矿和辉绿岩，年龄为1043±6 Ma。因此，不列颠哥伦比亚省东南部负责沉积物的层状铜－银矿化的流体渗透到约440 m.yr的宿主层中。沉积后，与约1200-1000 Ma的格林维尔时代变质事件相吻合。