Mapping by Hausel identified numerous shear structures along with steeply plunging ore shoots associated with isoclinal and open folding that may be favorable for saddle reef-type gold mineralization.
2.
The Shadow's slightly tapered wings, which have down-turned wingtips and leading edges which droop towards the tip, consist of plywood leading edge D-section boxes, built onto mixed plywood and aluminium web shear structures with styrofoam formers.
3.
Extensive gold development took place across the entire Precambrian greenstone belt in the late 1860s to early 1870s, and again in the 1930s until World War II . Lode deposits occur primarily in strike-trending shear zones within metagreywacke and hornblendic orthoamphibolites, and placer operations have developed at various times along most streams downstream from these shear structures.
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