Laminated Quartz Veins

The reverse fault lies along the margin of an extensive but narrow dyke within a complex fifty metre wide shear zone.

Laminated quartz veins. The spatial relationships between organic rich shales folded bedding parallel laminated quartz veins and gold arsenic bearing saddle reefs combined with the consistent trends in the trace element composition of pyrite hosted by these three geological elements is interpreted to indicate that the black shales were an initial source of au and as and the laminated quartz veins acted as the initial pathways for hydrothermal fluid flow carrying au and as from the source shales to the saddle reefs. The microstructures and textures of quartz in the laminated quartz veins are representative of the progressive greenschist facies d 3 deformation at 300 400 c. Microfabrics of laminated quartz veins of the hutti gold mine india. The veins and their weak alteration envelope acted as a planar anisotropy that localize the nucleation and propagation of the shear zones hosting them.

A quartz vein prominent from the surrounding weathered rock at cape jervis south australia open space filling is the hallmark of epithermal vein systems such as a stockwork in greisens or in certain skarn environments. The extensive and continuous reef is predominantly a laminated quartz carbonate vein with some associated stockwork veins and in places incorporates sheared dyke and meta sedimentary rocks. To have the answer answered you must give a better description of the host rock and so on. The oblate shape of quartz 1 and scheelite 1 porphyroclasts and pyrrhotite in the quartz shear veins together with the symmetry of quartz textures with respect to the maximum shortening direction point to coaxial deformation perpendicular to the vein walls.

Laminated quartz gold veins predate the formation of regional cleavage and stretching lineation in the wawa gold camp. The spatial relationships between organic rich shales folded bedding parallel laminated quartz veins and gold arsenic bearing saddle reefs combined with the consistent trends in the trace. Dominant coaxial deformation of veins during the interseismic stage of the fault valve cycle. Fortunately when metals are present in quartz veins gold is usually among them.