A Review of Mining Operations in the State of South Australia During the Half-Year Ended June 30th, 1910, Vol. 12 (Classic Reprint)
Excerpt from A Review of Mining Operations in the State of South Australia During the Half-Year Ended June 30th, 1910, Vol. 12 N O. 2 bore, copper hill - Angle, 15ft. In lo0ft depth, 516ft. After passing through the surface loam and limestone we entered sandstone, followed by kaolin and sandstone to a depth of 6oft. We then entered grey country, and continued in same to 82ft. This was followed by blue country'; then kaolin and sandstone to 139ft. From l39ft. We had hard blue country to 200ft., then grey and blue country to 236ft. At 236ft. We had a 9m. Leader of honeycombed quartz, Showing a little mineral. This was followed by broken country showing a little pyrites, which continued to 244ft. From 244ft. To 405ft. We drilled in blue and grey country, with seams of hard quartzite and feldspar. At 405ft. We entered lode formation, and drilled in same 7ft. This formation showed a little sulphide and mundic. At 4l2it. We entered quartzite, which continued to 429ft. This was followed by hard blue country, with bands of quartzite, which continued to 483ft. From 483ft. To 486ft. We drilled in lode formation, showing sulphide. From 486ft. To 516ft. Quartzite and blue country. Boring was discontinued at this depth. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
- Paperback | 32 pages
- 152 x 229 x 2mm | 59g
- 01 Mar 2018
- Forgotten Books
- 23 Illustrations; Illustrations, black and white