Airborne Geophysical Survey |
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Weeber Hill (Woodhall)
Weeber Hill showings are located south of the Marlie Hill School. Two showings located at Grid Reference 50014168 and 50074165 can be reached by third class road from Marlie Hill for about 1 mile (1.6 km) and then by trails leading toward the Guava Gully. Previous prospecting Geochemical and self-potential surveys cover part of Weeber Hill and the ground immediately to the southeast. The anomalous areas delineated (see Fig. 11) were covered by a detailed geochemical survey. Geology and Economic Indicators Deep weathering has affected the rocks at Weeber Hill which are purple coloured volcanic breccias and sandstones. Much fracturing is evident in the area; the fractures are commonly lined with calcite (personal observation). The Weeber Hill copper showings comprise well defined zones of malachite which are apparently derived from primary copper minerals contained in abundant quartz stringers. Bornite is present in some samples but most sulphides have been oxidised (Bergey, 1958b). The mineralization is found in altered or highly weathered dykes, in zones where steeply dipping structures cut relatively gently dipping sedimentary rocks (Bergey, 1958b). Three showings were sampled (Bergey, 1958d) with the following results:
18.0 feet (5.5 m) 2.2% Cu 3.0 feet (0.9 m) 21.2% Cu
metal. Geochemical surveys in the Weeber Hill area indicated several scattered anomalies elongated in a general northwest - southeast direction. No significant self-potential anomaly was defined. Page 80-81 COPPER PROSPECTS OF JAMAICA A.D. FENTON 1979 (Found on Historical Exploration page of this website) |
Based on previous work to the west (Connors and Bull Snap) it believed that the main Ginger Ridge Stock was emplased at depth from the southeast and the later apophysis occur as "spikes" above this. The continuity of the potassic alteration in the Bull Snap Zone suggests that it is the root of a porphyry system. Therefore the systems further to the southeast would represent higher levels of the later intrusives and a stronger chance of preserving the mineralized system. The wide spread Ba soil anomaly with its associated Pb, Zn, Mg and Mn anomalies at Weebar could represent the roof of a significant deposit. By examining the high grade, dyke related Cu showings in this area and vectoring in on where these dykes coalesce, the source of this mineralization may be located. A similar scenario exists at the Kola zone, except that being 80 metres below the Weebar zone, erosion has exposed a large Cu soil anomaly and mineralized outcrops. The extensive geochemical zoning evident at Kola makes this zone an attractive target. |
Browns Hall BHP BHP Exploration Summary 1995 BHP Exploration Report Jan 1997 Bull Snap Drill Results Appendix IV A9428482BS Drill Results A9429146BS Drill Results A9429147BS Drill Results A9429506BS Drill Results Self Potential Data Acquisition Jamaica Appendix V SP Survey Description and Data Appendix 1 Bull Snap Soil Line Extension Sample Results |
N18 02.470 W77 10.686 |
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High Grade Copper, Gold and Silver 15 miles from Port |
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