The Quarterly journal of the Geological Society of London . 422 PEOCEEDINGS OF THE GEOLOGICAL SOCIETY. Courtenay, and Haldon*. The granite in the district to which thispaper relates is for the most part coarse and large-grained, and con-tains a great proportion of schorl, which occurs both disseminatedin the rock and in distinct nodules and veins. The schorl variesvery much in character, and rubellite has been found near Chag-ford. The examination of fifty-three veins near Chagford showedthat thirty-nine ranged in directions from between IN, and E. by between S. and W. by S. No mines are
The Quarterly journal of the Geological Society of London . 422 PEOCEEDINGS OF THE GEOLOGICAL SOCIETY. Courtenay, and Haldon*. The granite in the district to which thispaper relates is for the most part coarse and large-grained, and con-tains a great proportion of schorl, which occurs both disseminatedin the rock and in distinct nodules and veins. The schorl variesvery much in character, and rubellite has been found near Chag-ford. The examination of fifty-three veins near Chagford showedthat thirty-nine ranged in directions from between IN, and E. by between S. and W. by S. No mines are worked on the granitenear Chagford; but several lodes of tin are known to exist of porphyry can be seen by the side of the road from SandyPark to Parford, and near the stack-yard at Eorder near WhiddonPark. The Carboniferous beds lying to the north of the Dartmoor gra-nite are broken up by frequent dislocations, and are occasionallycontorted; the amount of dip is very variable, the direction being-northerly. The minerals gradually cease as we
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Keywords: ., bookcentury1800, bookdecade1840, bookidquarte, booksubjectgeology
