...resemblance borne by the clay-slates and associated quartzites to the gold-bearing rocks of Nova Seotia, and I have suggested that they may be the equivalents...which itacolumite occurs. Clay-slates with auriferous veius occur in other parts of Brazil besides Minas, as, for instance, in Goyaz, and in the vicinity...

...itaribite, and other associated metamorphic rocks of this region appear to be lower palaeozoic in age. The gold-bearing rocks in Minas Geraes resemble the...southern Atlantic States, in which itacolumite occurs. The metamorphism has been so extensive that all traces of fossils have been obliterated. Most of these...

...itaribite, and other associated metamorphic rocks of this region appear to be lower palaeozoic in age. The gold-bearing rocks in Minas Geraes resemble the...southern Atlantic States, in which itacolumite occurs. The metamorphism has been so extensive that all traces of fossils have been obliterated. Most of these...

...itaribite, and other associated metamorphic rocks of this region appear to be lower palaeozoic in age. The gold-bearing rocks in Minas Geraes resemble the...auriferous series of the southern Atlantic States, in which itacolumito occurs. The metamorphism has been so extensive that all traces of fossils have been obliterated....

...borne by the clay-slates and associated quartzites to the gold-bearing rocks of Nova Scotia, and has suggested that they may be the equivalents of the...These rocks are everywhere so metamorphosed, that all traces of fossils have been completely obliterated. According to Selwyn, the gold-bearing series in...