Welcome To The VIT Chat Board

The Company's Eagle Gold Project in Yukon Canada hosts a National Instrument 43-101 compliant Reserve of 2.3 million ounces of gold.

Free
Message: NW-15 From Raul Madrid
post-mineral--- obvious what that means but here is what it means in relation to faulting and hence why they want to drill beyond and below it.
as i had posted earlier we had expected to drill deeper and had hit a big mineralization section we needed to pierce.
the following is certainly not written by me, fyi.

Faults

Faults are breaks in rocks where slippage occurs. The surface where the slippage occurs is called the “fault plane”. The fault plane can form at any geometric orientation from horizontal to vertical. The orientation of the fault plane is defined by measuring the strike and dip, just as with any other planar feature in rocks. If the fault plane is vertical, the fault is called a vertical fault. The relative motion which can occur includes:

  • dip slip: the relative motion of blocks on each side of the fault plane is parallel to the dip of the fault plane.
  • strike slip: the relative motion of blocks on each side of the fault plane is parallel to the strike of the fault plane.
  • oblique slip: the relative motion of blocks on each side of the fault plane is oblique, ie, displacement is at anoblique angle to both the dip and the strike of the fault plane.

Dip slip faults which dip less than 90 degrees are further defined by the relative displacement of the blocks on each side of the fault plane. The block of rock which occurs above the fault plane is called the “hanging wall”. The block which occurs below the fault plane is called the “footwall” (Figure 10 – 5).

  • normal fault: the hanging wall moves down relative to the footwall.
  • reverse fault: the hanging wall moves up relative to the footwall.
  • thrust fault: special type of reverse fault in which the fault plane dips at a low angle.

Strike slip faults typically have near vertical fault planes, and since the displacement is parallel to the strike of the fault plane, there generally is no hanging wall or foot wall. Strike slip faults are defined by the relative motion of the block on the opposite side of the fault from the point of observation. For example, if the relative motion on the opposite side of the fault is to the left, it is called a “left-lateral strike slip fault”. If the relative motion on the opposite side of the fault is to the right, it is called a “right-lateral strike slip fault” (Figure 10 – 5).

Share
New Message
Please login to post a reply