mt kare pfs by madison minerals circa 2007, page-2

Hey IDC Holders

The engineers and geologists at Snowden again compared Mt Kare to Porgera saying both have the same mineralisation, read below!

This Mt Kare PFS has been freely available on the net since 2007! Amazing!

How many exploration projects have had so much geological and engineering work completed?

Mr Promnitz knew exactly what he was doing when he picked up this project back in early 2011!

Cheers Nectar


Mineralisation

Mineralisation at Mt. Kare post-dates the intrusions, pervasive alteration, north-northeast-plunging folds and most of the movement on the major faults, including the major hangingwall fault containing a polymict breccia. Gold mineralisation is predominantly within veins, the dominant style of vein fill being pyrite + sphalerite + galena + quartz, carbonate and silver sulphosalts.

Buffalo Gold believes that the mineralisation style at Mt. Kare is similar to that at Porgera. The SRK 2007 study (SRK, 2007) describes the mineralisation at Porgera as follows:

“ At Porgera vein mineral assemblages similar to those at Mt. Kare are well documented. The veins at Porgera are grouped into:-

Early Stage (Stage I). The vein paragenesis is such that pyrite only veins (B-type and C-type) are early. Pyrite + sphalerite + galena + carbonate veins are paragenetically slightly later (A-type), and veins rich in silver sulphosalts, commonly associated with colloform banded carbonate, are later again (E-type veins).

Later Stage (StageII). Quartz + roscoelite (vanadium mica) + pyrite + carbonate veins which commonly host free gold, returning high grades .”

Stage II mineralisation has two modes of occurrence at Porgera, either occurring as veins overprinting Stage I veins (commonly within or immediately adjacent to the Stage I veins) or as discrete zones of fault breccia and vein, formed by activation and re-activation of faults which are separate to the Stage I vein sets (e.g Zones VII and VIIA at Porgera).

According to the SRK 2007 study (SRK, 2007), “ Stage II mineralisation at Mt. Kare occurs as discrete veins, stockwork and breccia matrix-fill, spatially associated with, and overprinting, the Stage I mineralisation. The mode of occurrence of Stage II mineralisation at Mt. Kare is a composite overprint on Stage I .” To date, no discrete zones of Stage II mineralisation have been observed, although target areas have been identified where discrete domains of Stage II mineralisation may occur.

For the purpose of resource estimation, three main mineralized domains have been identified at Mt. Kare, each having distinctive structural, geological and mineralogical characteristics.

9.1

Western Roscoelite Zone

The Western Roscoelite Zone (WRZ) is the westernmost mineralized domain, lying in the immediate hangingwall of the Brown Mudstone Fault.

Drilling has traced the WRZ over a strike length of 550 m, outlining a north-south trending body. In the field, a clearly visible east-northeast tending fault at 84225 mN divides the WRZ into to two distinct zones: a northern, cohesive mineralized body, NWRZ, and a less well defined southern zone, SWRZ.

In the NWRZ, the Brown Mudstone Fault and Hangingwall Fault are the main structures that control veining, and mineralisation occurs entirely between these two faults. Swarms of early stage (Stage 1) pyrite and pyrite + sphalerite + galena + carbonate extension veins, with a weak Stage II quartz + pyrite + roscoelite + carbonate overprint, have focused around the earlier alteration and intrusions occurring in the immediate hangingwall of the Brown Mudstone Fault. The veins generally strike northeast to north-northeast, dip steeply to the east and are located at the steepest part of the Brown Mudstone Fault, immediately above a change to a shallower dip where a northwest striking splay fault (Hangingwall Splay) intersects the contact. The Brown Mudstone Fault and F1 fault are also affected by northwest-striking faults which compartmentalize the vein swarms and form a southern boundary (the Northwest Fault). Base metal mineralisation in the NWRZ is frequently semi-massive to massive in nature with concomitant high gold values, locally enhanced by quartz-roscoelite veining.



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[F070801BUFFMTKARENI43101E005.JPG] Buffalo Gold Limited: Mt Kare, Technical Report Update, 2007 Page 40

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The controls on mineralisation in the SWRZ are not as clear-cut as in the NWRZ.

The alteration system is more widespread, extending to depth before shallowing out at a depth of approximately 400 m where it converges towards the Black/C9 shoot. Stage I veining with a minor Stage II overprint occurs in the immediate hangingwall of the Brown Mudstone Fault while, to the east, sandstones and lesser siltstones host predominately disseminated pyrite and pyrite veining forming a steeply dipping shoot (this area has previously been included in the Central Zone).

9.2

Central Zone

The Central Zone domain is not well defined and has previously been identified as a broad 700 m by 300 m area of shallow, generally sub-horizontal to gently dipping mineralisation with a sub-vertical root zone, extending to the northeast from the WRZ towards the

Pinuni Valley. In previous resource models, sub-vertical mineralisation in the southwest, adjacent to the SWRZ, has been attributed to the Central Zone. Recent drilling in this area has lead to the inclusion of this deeper mineralisation in the WRZ domain.

Mineralisation in the Central Zone is not as cohesive as in the WRZ, comprising northeast-trending, Stage 1, pyrite and base metal vein swarms and is generally of lower tenor.

9.3

Black/C9 Zone

The Black Zone and the C9 shoot are controlled by the same northeast-striking fault system and are considered to form a single mineralized domain.

The Black Zone lies 600 m east of the WRZ, occupying the crest and western flank of a steep northeast trending ridge structure. In outcrop, the Black Zone is a black, strongly manganiferous breccia (formed by the near surface weathering of manganiferous carbonate - rhodochrosite) in the hangingwall of the steep, westerly dipping limestone-sandstone contact. Mineralisation is hosted by brecciated sandstone and calcareous siltstone and occurs as pyrite + sphalerite + galena + carbonate veins and breccia matrix (Stage I, A and B-type) with a pervasive late Mn-carbonate overprint. In drill core the sulphides are often semi-massive to massive with abundant black manganiferous wad and iron oxides near surface.

Drilling has traced mineralisation over a strike length of 250 m and has outlined two shoots, the southern shoot being the largest, with a plunge of approximately 24° to the southwest. The limestone contact, although conformable, is an irregular surface which has a number of bends towards a northwest-strike. The northwest-striking sections of the contact dip to the north-northeast such that the limestone contact becomes shallower dipping. Two of these bends coincide with the southwestern edges of the northern and southern shoots respectively. The pattern is similar to the Brown Mudstone Fault, the base of the Black Zone shoots coinciding with the northwest-striking bends which may be the result of cross structures off-setting the limestone contact.

The C9 shoot lies 250 m to the southwest of the Black Zone, occupying the high ground to the east of the SWRZ, adjacent to the contact between sandstones and the basal limestone unit. The C9 mineralisation consists of pyrite + sphalerite + galena + silica + carbonate (A-type) which occurs in the matrix to a breccia of altered sandstone, siltstone and calcareous siltstone. The alteration and mineralisation form a steep westerly plunging shoot extending from surface outcrop at 3010 mRL to 2600 mRL. Mineralisation occurs on an east-west striking bend, splay or step-over, in a steeply dipping northeast-striking fault. The northeast strike and steep northwest dip of the breccia at the margins of the shoot suggest that the controlling structure may be bedding parallel and parallel to the limestone contact. The three dimensional shoot geometry is consistent with a component of strike slip (dextral) movement on northeast trending structures.