Angelina

Deposit Types

The gold deposits of the Rice Lake gold belt are predominantly hosted by quartz veins and stringers that occur in shears, faults, and fractures. The larger deposits are stratigraphically constrained to the Bidou Lake Subgroup in epiclastic volcanic rocks, basalt flows, and layered mafic sills (Poulson et al. 1996). This coincidence is currently not understood in its entirety. Regional quartz vein generation is proposed to have occurred late in the tectonic history of the Rice Lake greenstone belt, culminating with the last major period of folding and associated intrusions. However, recent observations suggest gold veining could also have been produced much earlier, but later than felsic to intermediate intrusive activity.