Bowen River Coalfields: Preliminary Report Relating To) (Google eBook)

Front Cover
J.C. Beal, government printer, 1883 - Coal mines and mining - 2 pages
0 Reviews
  

What people are saying - Write a review

We haven't found any reviews in the usual places.

Selected pages

Common terms and phrases

Popular passages

Page 28 - At the bottom of the shaft the quartz continues as a narrow shoot, but for the last 12 feet contains no tin ore, although it is still accompanied by wolfram and pyrites. A sort of " foot-wall" with a serpentinous face continues all the way down. At the bottom a " hanging-wall" of dark diorite is seen —probably a dyke with which the quartz reef is connected.
Page 23 - ... to the south. The country is alternating shale and greywacke. In the latter the deposit is contracted, and in the former wide and diffuse. About 70 feet up the hill (to the north) another lode is seen.
Page 26 - There is also about a ton of iron pyrites, marcasite and copper pyrites with a coating of copper sulphate, and 19 tons mixed green and red chlorite ore with tin in crystals and finely disseminated, amounting to, say, 5 per cent.
Page 28 - In the corner near the Queen of the West is a north-east and south-west lode of arsenical pyrites and red peroxide of iron, with some blue and green carbonate of copper and red copper ore. On the south-east side of the lode...
Page 28 - Thirty-five feet further along the tunnel a blind shaft has been sunk for 40 feet below the level of the tunnel. At the bottom of the blind shaft the ore is in a vein a few inches to 2 feet thick and G feet wide, occurring in coarse-grained diorite, underlying at a high angle to south-south-east.
Page 6 - The matrix of the ore is a dark-green chlorite rock with grains and kernels of quartz. Sometimes reef quartz replaces the chlorite. The chlorite rock is in all probability a dyke, originally erupted as a quartzosedionte, and which has subsequently undergone much alteration.
Page 23 - At the very end of the claim is seen, on the north side of the Herberton road, the outcrop of a strong lode of copper carbonate, underlying to south 40 degrees east at 30 degrees.
Page 16 - In the shaft, at the depth of 40 feet, is a 2-foot quartz vein with tin ore at the junction of the elvan with porphyry. A wedge-shaped diorite mass, partly decomposed and partly very hard and quartzose, comes in at the north end of the shaft, as shown in the sketch-plan (Fly.
Page 28 - The vein contains also much copper pyrites and some tin pyrites. Above this shaft the roof of the tunnel has been stoped out to the height of IK feet.
Page 5 - This wall stands at present about 10 feet above the level of a floor of puddled clay designed to keep the water of the gully out of the workings. The dyke and ore have peen quarried up to this wall. The "No. 1 lode," the first discovered on the field, still ranks first among the mines in the district.

Bibliographic information