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An east-west trending arsenic-gold anomaly is closely defined by a magnetic low feature, seen both in ground surveys and in published aerial magnetic surveys. The magnetic low feature is an elongate configuration; both aerial and ground interpretations suggest a long dimension about 4,000 feet along an east-northeast direction and up to 2,000 feet wide. The magnetic feature and its apparent correlation to the area of anomalous arsenic is shown on Figures 2 and 3.
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Figure 2 - Click image to enlarge |
Figure 3 - Click image to enlarge |
No bedrock exposure occurs in the Line 18 area. Up to 600 ppb gold was found in soil samples. Colluvium is composed of quartz-mica schist, chloritic and carbonaceous schist, black quartzite, and a distinct white sericite-quartz schist. Quartz veining is common in all rock types. Colluvium samples of fine-grained black quartzite with quartz stockwork generally contain anomalous gold (samples 813 and 814, Figure 2). Silicified and clay-altered porphyritic rock and altered quartzite occur as rubble in a deeply incised ravine and also contain gold and arsenic (samples 795-798, 815).
I n a further effort to explore the anomalous zone in 1998, a track-mounted excavator was used to dig a series of 13 short trenches through frozen colluvium. Tough, frozen clay and quartz limited bedrock exposures to only a few square feet. Trenches were mostly spaced 50 feet apart along an 800 foot north-south line to transect the projected geologic structure and anomalous soil values shown on Line 18, Figure 2. Samples include continuous chip sampling across the trench bottom and vertical channel sampling of the overlying colluvium.
Trenching in the Line 18 area.
Sampling indicates several mineralized intervals within at least 150 feet of the transect, with anomalous values (>0.01 oz/ton gold) found across a wider, 600-foot width (Table 1; Sta 7150 to Sta 7800, (see company report for 1998 reference 3). By 2005 the trenched area had thawed to bedrock and a more complete geologic section was mapped (see Figure 3).
Based on trench exposures, soil and rock assays, and inferred bedrock geology, the low magnetic response over this area is suspected to be due to the silicification and clay alteration within the schist unit and perhaps the underlying porphyry sill complex that outcrops 2,000 feet to the north (Figure 2).

Due to logistical constraints and steeper, wet seasonal conditions farther downhill, trenching was suspended. Reverse circulation (RC) drilling is recommended to follow-up the trench transect.
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