7.5.2 Long Hills, Horlick Mountains

Table 7.2 Summary of Rb-Sr dates of whole-rocks and mineral concentrates from the basement rocks of the Wisconsin Range and the Long Hills in the Horlick Mountains. Recalculated to X ( Rb) = 1.42 x 10 year from unpublished analytical data by Faure et al.

Fig. 7.19 Silica-variation diagram of rhyolite pyroclastic rocks on Todd Ridge of the Long Hills, Horlick Mountains. One sample of rhyolite from Mt. Webster in the Harold Byrd Mountains is represented by the x (Data from Minshew 1967 Faure unpublished in Appendix 7.8.3)...

The Ohio Range is located about 55 km northeast of the Long Hills and forms the most easterly part of the Horlick Mountains. The topographic map in Fig. 7.21... 

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