Legacy Project

Overview

Camp Scale Potential

The company controls 100% interest in a +/- 200-square-kilometre prospect assembled in the heart of the Porcupine trend in the Lake Abitibi region located just a few kilometres west of the Ontario-Quebec border.


The area was selected for its proximity to the Porcupine-Destor Fault Zone, the presence of nearby gold showings and an interpretation of geophysical maps, which indicate the the presence of structures similar to and parallel with the Porcupine Fault to the south, which in turn contains several gold producers in and near the fault plane.


The Porcupine-Destor Fault Zone is recognized worldwide as a major geological feature extending from west of Timmins, Ontario, well into Québec. Sub-parallel structures here are associated with better than 95 percent of the 70+ million ounces of gold produced in the Porcupine Mining District alone.

The area is underlain by east-west trending rocks of Achaean age within the Abitibi geological province and contains steeply dipping mafic to intermediate volcanic rocks and associated granitic and ultramafic bodies and mafic dykes.

The Holloway Gold Mine and Holt-McDermott deposits occur in Holloway Township near the southeast corner of the Solid Gold property, suggesting evidence of clustering of gold deposits in the area. These modern mines have produced 2,105,665 oz gold with a 3,000-tons-per-day mill facility.

Ground surveys conducted over several areas on the Solid Gold property have identified excellent drill-ready gold targets, and a recently completed 43-101 technical report recommends robust drill testing.

Large gold camps are commonly associated with curvatures, flexures, and dilational jogs along major compressional fault zones, such as the Porcupine-Destor fault in Timmins or the Larder Lake-Cadillac fault in Kirkland Lake which have created dilational zones that allowed migration of hydrothermal fluids (cf. Colvine et al., 1988; Sibson, 1990; Phillips et al., 1996; McCuaig and Kerrich, 1998; Hagemann and Cassidy, 2000; Kerrich et al., 2000; Groves et al., 2003; Goldfarb et al., 2005; Ispolatov et al., 2005; Robert et al., 2005). In terms of geological setting, large gold districts, such as Timmins, are mainly underlain by tholeiitic basalts (commonly variolitic) and ultramafic komatiitic flows that are intruded by intermediate to felsic porphyries, and locally swarms of albitite and/or lamprophyre dykes (cf. Hodgson and MacGeehan, 1982). Irrelevant to their age, Timiskaming-like regional unconformities, distributed along major faults or stratigraphical dis-continuities, are also typical of large gold camps. In terms of hydrothermal alteration, the main characteristic at the district scale is the presence of large-scale iron-carbonate alteration, the width of which gives some indication as to the size of the hydrothermal system(s) (e.g. Timmins). Protracted magmatic activity with synvolcanic and syn- to late tectonic intrusions emplaced along structural discontinuities (e.g. Destor-Porcupine Fault) may also be highly significant. In many cases, U-Pb dating of intrusive rocks indicates that they are older than gold mineralization, in which case these rocks may have provided a competent structural trap or induced anisotropy in the layered stratigraphy that influenced and partitioned the strain. In other cases, the intrusive rocks are post-mineralization. However, the possibility remains that the thermal energy provided by some intrusions contributed to large-scale and long-lived hydrothermal fluid circulation

North Grid

Interpreted geophysical ground surveys suggest potential for two additional large-scale fault structures roughly parallel to the North Branch continuation of the Porcupine-Destor Fault located to the south. Drill targets have been identified for testing.

South Grid

Geophysical ground surveys confirm the position of the North Branch of the Porcupine-Destor Fault Zone, and interpretation of the data identifies potential for a previously unknown splay fault, multiple alteration zones as well as a promising 'Orbicular Granitic Intrusion', similar to the rich Timmins ore bodies. Drill targets have been identified for testing.

Two historical diamond drill holes put down approximately 750 metres apart in the area of south grid ground survey returned anomalous assays in what is reported as an alteration zone of carbonatization and sericitization in hole LR-87-1 returning an averaged assay of 73 ppb over 3.99 metres and in hole LR-87-5, in the same alteration zone, reporting 63 ppb over 0.92 metre.

Approximately 1.5 kilometres south is a series of seven holes, drilled as part of an overburden sampling program covering 600 metres laterally, returning values up to 31.0 gpt gold. A recognized expert concluded that this anomaly appears to represent a placer gold occurrence in interglacial alluvial gravels.

Exploration Program

Follow up on geophysical, geological, remote sensing and other work to better define the potential within Solid Gold's extensive property holdings.

Geology

The claims are located in the western part of the Abitibi Volcanic Belt of the Superior Province of the Canadian Shield. The Abitibi Belt extends for nearly 550 kilometres in a west-east direction, from Timmins, Ontario, to Chibougamau, Quebec. It is the host to a variety of precious and base metal deposits, including the Timmins, Kirkland Lake, Harker-Holloway, Noranda, Val d'Or and Chibougamau mining camps. The Abitibi Volcanic Belt is composed of a complex assemblage of interbedded volcanic and sedimentary rocks, intruded by a variety of ultramafic to felsic intrusives. The rocks are Archean in age and have been metamorphosed to the greenschist facies. Numerous Late Precambrian diabase dykes cut the rocks of the belt. The rock units generally strike west-east, have near vertical dips and are highly faulted and folded.

Compilation data shows that the entire land portion of the claim block is underlain by steeply dipping, east-west-trending, basic and intermediate Archean rocks. Radiochemical age dates indicate that these rocks are slightly older than 2700 million years. A small area of ultrabasic rock is indicated near the west central part of the ground and an alkaline body just east of it. A large mafic to ultramafic intrusive occurs along the southern boundary and is up to 12 kilometres long and 2 kilometres wide forming a prominent ridge that rises 200 metres from the general topography.

Structural Geology

Rocks on the claims group consist of basic to intermediate volcanics, trend west northwesterly, and contain volcanic pillows indicating that the tops of the units are southward. Two major faults are recognized in the southern part of the claim group. The more southerly of these trends west-northwest and occurs near the southern extreme of the area is labelled "North Branch Porcupine-Destor Fault". A second fault, herein after known as Stretch's Fault, splays off this and trends in a northwest direction. The main branch of the Porcupine-Destor Fault is about one kilometre to the south of the claim block, trending in a nearly east-west direction.

Most significant gold deposits in the region occur up to several kilometers north of the Destor-Porcupine Fault Zone on sub-parallel splays. An example is the McIntyre gold mine, which occurs 5 km north of this fault zone.

In the northeast quadrant, a spectacular chevron fold exists, with its apex northward and tops of the rock units southward, thus defining a synclinal structure. This structure is shown as truncating abruptly in the general area of the North Branch of the Porcupine-Destor Fault.

The clustered distribution of gold deposits proximal to and along the Destor-Porcupine Fault Zone are associated with sub-parallel auriferous structures. The Pipestone Fault, for instance, strikes northwest off the Destor-Porcupine Fault Zone and also has several gold deposits associated with it.

The clustering of gold deposits on sub-parallel structures, together with compilation of geological and geophysical data from the region, provides justification for exploration in the area of the North Branch of the Destor-Porcupine fault (NBDPF) and other interpreted sub-parallel deformation zones striking across the company's property.

The magnetic low response for the North Branch suggests extensive hydrothermal alteration and the consequent destruction of magnetite. Such an explanation would provide an ideal setting for gold deposits.

The Holloway Mine and Holt-McDermott Mine gold ore deposits occur in Holloway Township near the southeast corner of the Solid Gold property.

This evidence of clustering of gold deposits in the area provides justification to explore the southern part of Frecheville Township and the southeastern part of Lamplugh Township.

These gold deposits are associated with disseminated pyrite zones and one would expect gold mineralization on other sub-parallel auriferous structures to have similar associations.

The world's major Archean gold camps share certain key lithological, structural and chemical features. To summarize the five key features:

1. Major gold camps are usually located adjacent to major regional thrust faults (Destor-Porcupine Fault Zone, North Branch).
2. Presence of a precipitating agent. Pyrite in iron-rich volcanics (Kerr-Addison, Porcupine, Kirkland Lake) or iron formation, manganese-rich metasediments and arsenopyrite (Ashanti) or graphite.
3. Rock competency contrast: mafic/ultramafic volcanic contacts, especially where secondary deformation has created brecciation of the more brittle rock.
4. Intense regional and local carbonate alteration with the change calcite to dolomite to ankerite usually vectoring towards strongest gold mineralization.
5. There is always syn, or post-deformational intrusive activity. This may take the form of quartz-feldspar or feldspar porphyries (Porcupine and Ashanti), mafic syenite (Kirkland Lake), albitite dykes (Kerr Addison), tholeiitic gabbro (Kalgoorlie) and mafic sills (Ashanti). Important gold deposits may be found immediately adjacent to these intrusions (Hollinger and McIntyre Mines, Porcupine) or entirely within them (Kirkland Lake and Kalgoorlie).

More about Greenstone-hosted Quartz-Carbonate Vein Deposits http://gsc.nrcan.gc.ca/mindep/synth_dep/gold/greenstone/index_e.php#fig2

Maps & Images