Re: 98 extension vein,,,ACA hOWE 2004 REPORT
in response to
by
posted on
Feb 15, 2010 12:18AM
San Gold Corporation - one of Canada's most exciting new exploration companies and gold producers.
...alot of high lights in this report....Vein density:
Within several feet to tens of feet of both 16-type shear veins and stockwork .... There is potential for a further en echelon
vein systems, density of quartz extension veins rapidly increase within the SAM unit.
stockwork vein step to the east of the Deep East vein system. Based on the spacing of the
97, A and Deep East veins, another stockwork system could occur 300-600 feet east, down
plunge in the SAM unit, of the Deep East vein system............................Potential may be best at the eastern
end of en echelon stepping stockwork vein systems, such as the 40-50-60 vein set, for
further en echelon steps............... For example, sinistral displacements of the SAM unit on shear
zones parallel to the 16-type veins have been previously identified 3000-5000 feet southeast
of the main shaft in near surface
a) The D shaft area between 30 and 4920 levels. Vein systems in the 30-200 subdrift
and Puff subdrift areas, which form part of the 97 stockwork vein system, may
continue down dip to the north, north of the D shaft area, for several levels. The
Deep West vein system may also be continuous from the lower levels (4860, 4920
levels) upward into this area..............i) A band of mafic volcanic rocks and gabbro (termed Unit A) that occurs within felsic
volcanic rocks 1500-2500 feet south of the SAM unit under Rice Lake. This unit is
rheologically and mineralogically similar to the SAM unit, and has the potential to host San
Antonio style vein systems. Limited near surface drilling, and some drilling from
underground where Unit A passes close to underground workings has tested this unit, and
some minor gold mineralization has been previously identified. As at San Antonio, fault
displacements, zoned alteration and areas of high extension vein density may provide
indicators to mineralization. The unit has been intersected on several levels by the San
Antonio mine workings and parts of it could be explored by underground drilling. Although
parts of the near surface projection of the unit are not on Harmony property, the northeast
dip of the unit brings it onto the mine property within 2000 feet of surface for most of its
strike length; this is the area most easily accessible to exploration from the existing mine
workings.................
(ii) On the western margin of Rice Lake, the Rice Lake shear zone may form a prospective
host to mineralization where it intersects the SAM unit and Unit A. This structure is a
dextral syn-D2 shear zone that occurs in an area of high rheologic contrast at the
unconformable contact between the Bidou Lake subgroup and the clastic San Antonio
formation (Figure 1). The area is unexposed, but has been tested by several drill holes.
Compilation and review of the data is recommended if further exploration of the San
Antonio property is pursued by Harmony.........................
hanging wall portion of the SAM unit may also reflect the entry of hydrothermal fluids and
vein controlling structures from the hangingwall........................ Feng Shui East West,. Long On The GoldenFairWay....Traps7