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molybdenum target surrounded by anomalous base metal values. In 2007, an 875 m percussion
drill program of 18 holes tested a portion of this anomaly that was underlain by a chargeability
anomaly that had been defined by Amax (Bysouth, 2008). The program confirmed that the IP
chargeability anomaly is caused by disseminated pyrite mineralization with associated
anomalous molybdenum values.
In 2010, G.W. Bysouth became a part owner in the Skip claim with Kurz. They completed a
program of geological mapping and sampling was carried out over the central anomaly
(Bysouth, 2011). The work defined two zones of molybdenite mineralization, with similarities to
the nearby Nithi Mountain occurrence. The mapping program provided considerably greater
detail regarding the geological setting and the alteration associated with the mineralized system.
In 2012, Bysouth and Kurz competed a program of additional soil and rock geochemical
surveying designed to further define and characterize the main Owl and Gel anomalies.
In 2014, John A. Chapman and KGE Management Ltd. (Gerald G. Carlson, President) acquired
a large block of mineral claims surrounding the Skip claim owned by Bysouth and Kurz.
Subsequently, the two properties were combined as the Xama property.
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STRUCTURAL ANALYSIS
It has long been recognised that the location of major ore deposits is often controlled by deep
penetrating structures (see for example - Billingsley, 1941; Ernst, 2013; Kutina, 1987; Lowell,
1974). On a regional scale, major, crustal penetrating structures, or the intersection of such
structures, may control the ascent of magmas and related ore-forming fluids. Near surface,
smaller structures such as faults, calderas or vents can provide both channelways and
depositional sites for hydrothermal fluids.
In this study, topographic features and airborne geophysical patterns, viewed as overlays on the
BC government MapPlace web site at 1:1,500,000 (regional) and 1:100,000 (local) scales have
been used to define linear features. It is assumed that, in many cases, these features represent
zones of crustal weakness, likely faults and fractures.
R
EGIONAL
1:1,500,000
S
CALE
A
NALYSIS
Many types of mineral deposits that are related to magmatic and hydrothermal activity have
been shown to occur along major structures, including porphyry systems, VMS and Sedex
deposits. Indeed, many intrusive and volcanic associated deposits, such as porphyry and
epithermal deposits, have been shown to be associated not only with structures parallel to the
regional tectonic fabric but also, more importantly, with deep, crustal penetrating cross
structures (Kutina, 1987). It is therefore important to examine any prospect in terms of its
regional structural setting.
Regional and Tectonic Setting of the Xama Property
The Xama property lies within the Intermontane Belt, along the western edge of the Stikine
Terrane, adjacent to its boundary with the Cache Creek terrane, in central British Columbia
(Figure 4). This is a known and establish belt of porphyry molybdenum (Endako, Huckleberry)
and epithermal gold-silver mineralization (Blackwater, Capoose) but, due to extensive cover, in
this case mainly glacial till overburden, exploration has been hampered at the Xama property.
The following section examines lineaments as interpreted from regional topographic, magnetic
and gravity data and compares these data to regional faults as mapped by the BC Geological
survey and to MINFILE occurrences. The analysis was completed at 1:1,500,000 scale on the
BC Geological Survey MapPlace web site on an image with the Xama property in the centre of
the map. However, the actual location of the Property was not positioned on the map until after
the analysis was completed.
The styles of mineralization being sought at Xama would be most similar to a porphyry Mo
deposit similar to Endako and deposits on nearby Nithi Mountain and, secondarily, epithermal
Au-Ag such as at to Blackwater Davidson and Capoose.
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Figure 4 - BC terrane map and significant deposits. (AX – Alexander, N – Nisling, CP –
Coast Complex, SK – Stikine, CC – Cache Creek, Q – Quesnel, SM – Slide Mountain, K –
Kootenay, C – Cassiar, NA – North America; known significant deposits as yellow stars.)
Linears from Topography
Geomorphology is a reflection of underlying geologic features, such as faults, stratigraphy,
intrusive contacts and alteration zones as modified by the forces of weathering, most particularly
glaciers and rivers. When examining the distribution of lakes, rivers and topographic features
from afar, in this case at a scale of 1:1,500,000, there is potential to recognise large, crustal
scale structures, in particular those that are greater than 100 km in length, that could have
importance in focusing hydrothermal and mineralizing fluids.
The blue dashed lines in Figure 5 are the major linears as interpreted from 1:1,500,000 scale
topography. The predominant orientations are northwesterly, parallel or sub-parallel to the main
trends of the cordillera, and cross-cutting northeasterly trends. A major east-west linear cuts
through the Endako deposit and runs close to the Xama property as well as the centres of
Vanderhoof and Prince George. Some significant north trending linears are observed in the
eastern half of the map.