Re: Hinge Zones
in response to
by
posted on
Mar 05, 2009 01:53PM
San Gold Corporation - one of Canada's most exciting new exploration companies and gold producers.
3D fold terms
The hinge points along an entire folded surface form a hinge line. The trend and plunge of a linear hinge line gives you information about the orientation of the fold. To completely describe the orientation of a fold, one must use the axial surface. The axial surface is the surface defined by connecting all the hinge lines of stacked folding surfaces. If the axial surface is a planar surface then it is called the axial plane and can be described by the strike and dip of the plane. The axial trace is the line of intersection of the axial surface with any other surface (ground, side of mountain, geological cross-section). Finally, folds can have, but don’t necessarily have a fold axis. A fold axis, “is the closest approximation to a straight line that when moved parallel to itself, generates the form of the fold.” (Davis and Reynolds, 1996 after Donath and Parker, 1964; Ramsay 1967). A fold that can be generated by a fold axis is called a cylindrical fold. This term has been broadened to include near-cylindrical folds.........first off, i am not a geo. so do your own DD, we have seen past news of these axis lines and the potentail of future veining and according to the 2004 ACA howe report, Their is at least four different foldings accross the belt,.I am betting ( MMU ) AND ( WEL )also share these veins as we know the geology is the same and Sans news of North East puts the JV in the right direction. San was blessed with alot of rich veins from her Pluton eruption, Terealdeal, since you work with alot of GEO. what would be your thoughts of a glacier passing over the belt , and pushing half of Sans gold over the belt. ACA Howe says their is 4 miles of Gabbro with two on Sans claims,. i wonder wheir the other two are, just a thought, Traps7