Murray mine may be cited as illustrating the latter. 2nd. As impregnations of these minerals through the diabase or gabbro, which are sometimes so rich and considerable as to form workable deposits. These sulphides are in no case present as disseminations... The Canadian Record of Science - Page 681893Full view - About this book
| 1891 - 516 pages
...deposits. These sulphides are in no case present as disseminations through the clastic rocks very distant from the diabase or gabbro, which seems clear evidence...veins which may have been filled subsequently to the irruption which brought up the more massive deposits. These veins are not very common, although certain... | |
| Newton Horace Winchell - 1891 - 448 pages
...deposits. These sulphides are in no case present as disseminations through the clastic rocks very distant from the diabase or gabbro which seems clear evidence that they have been brought up by the latter. 3d, as segregated veins which may have been tilled subsequently to the intrusion which brought up the... | |
| Geological Survey of Canada - 1893 - 878 pages
...deposits. These sulphides are in no case present as disseminations through the clastic rocks very distant from the diabase or gabbro, which seems clear evidence...veins which may have been filled subsequently to the irruption which brought up the more massive deposits. These veins are not very common, although certain... | |
| Geological Survey of Canada - 1893 - 898 pages
...deposits. These sulphides are in no case present as disseminations through the clastic rocks very distant from the diabase or gabbro, which seems clear evidence...veins which may have been filled subsequently to the irruption which brought up the more massive deposits. These veins are not very common, although certain... | |
| 1893 - 568 pages
...deposits. These sulphides are in no case present as disseminations through the clastic rocks very distant from the diabase or gabbro, which seems clear evidence that they have been brought up by the latter. 3. As segregated veins which may have been filled subsequently to the irruption which brought up the... | |
| 1893 - 528 pages
...deposits. These sulphides are in no case present as disseminations through the clastic rocks very distant from the diabase or gabbro, which seems clear evidence that they have been brought up by the latter. 3. As segregated veins which may have been filled subsequently to the irruption which brought up the... | |
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