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Valmy |
 | | The Valmy Formation is composed of thousands of meters of thick-bedded, massive, vitreous and quartz-rich (98%) quartzite and sandstone interbedded with grey, green, or fl chert, fl shale, siltstone, greenstone, and minor limestone (Roberts, 1964; Gilluly and Gates, 1965; Roberts and others, 1967; Stewart and Poole, 1974). |
 | | The remainder of the Valmy is comprised of irregular bodies of greenstone, meta-gabbro and diabase, and micaceous phyllitic limestone (Coats, 1985). |
 | | Gardner (1968) felt the Valmy in the northern portion of the range could be divided into a lower portion of shale, siltstone, and chert with discontinuous lenses and pods of limestone and orthoquartzite, and an upper unit of siltstone, chert, and shale with rare orthoquartzite. |
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