Methods and costs of gravel and placer mining in Alaska

 
9781231300084: Methods and costs of gravel and placer mining in Alaska

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1905 Excerpt: ...dams, so that the debris brought down by the artnual flood may not injure the boxes. This debris is afterwards piped off, at the cessation of the high water, and the dams are then removed. The following details of this plant were kindly furnished by M. Henri Maluin, of the Societe Miniere de la Colombie Britannique, and will be of interest: The property on Bowlder Creek operated by the Soci6t(i Miniere de la Colombie Britannique is situated in the Atln mining division of the Cassiar district, British Columbia, 12 miles from the town of Atlin, on Atlin Lake. Operations were started in June, 1901, and the property has been worked continuously during the open season up to the present time. The product of gold has been 3,440 ounces, worth $16.63 per ounce. The gold is rather coarse, and nuggets up to 10 ounces in weight are found. Work is carried on both in the present bed of Bowlder Creek and on benches lying at approximately the same level as the creek bed. The gold-bearing channel is about 150 feet wide, the grade of the creek bed varying from 6 per cent to as high as 10 in the upper end. Where work is now carried on it is 6.1 per cent. The depth of ground averages from 25 to 50 feet, of which the lower 6 feet is consid ered the pay. The bedrock is a soft slate of greenstone variety, although granite occurs at the head of the creek. The gravel to be moved is rather heavy in character, stones from 18 to 30 inches in diameter composing 50 per cent of the mass, though the usual diameter of the stones approximates 6 inches. In the season of 1904, a season being reckoned at 100 days, with 400 miner's inches of water available, 40,000 cubic yards of gravel were moved, at a cost not far from 50 cents per cubic yard. It is expected that-mining will be done in the fu...

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Chester Wells Purington
Published by RareBooksClub
ISBN 10: 1231300086 ISBN 13: 9781231300084
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Book Description RareBooksClub. Paperback. Book Condition: New. This item is printed on demand. Paperback. 112 pages. Dimensions: 9.7in. x 7.4in. x 0.2in.This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1905 Excerpt: . . . dams, so that the debris brought down by the artnual flood may not injure the boxes. This debris is afterwards piped off, at the cessation of the high water, and the dams are then removed. The following details of this plant were kindly furnished by M. Henri Maluin, of the Societe Miniere de la Colombie Britannique, and will be of interest: The property on Bowlder Creek operated by the Soci6t(i Miniere de la Colombie Britannique is situated in the Atln mining division of the Cassiar district, British Columbia, 12 miles from the town of Atlin, on Atlin Lake. Operations were started in June, 1901, and the property has been worked continuously during the open season up to the present time. The product of gold has been 3, 440 ounces, worth 16. 63 per ounce. The gold is rather coarse, and nuggets up to 10 ounces in weight are found. Work is carried on both in the present bed of Bowlder Creek and on benches lying at approximately the same level as the creek bed. The gold-bearing channel is about 150 feet wide, the grade of the creek bed varying from 6 per cent to as high as 10 in the upper end. Where work is now carried on it is 6. 1 per cent. The depth of ground averages from 25 to 50 feet, of which the lower 6 feet is consid ered the pay. The bedrock is a soft slate of greenstone variety, although granite occurs at the head of the creek. The gravel to be moved is rather heavy in character, stones from 18 to 30 inches in diameter composing 50 per cent of the mass, though the usual diameter of the stones approximates 6 inches. In the season of 1904, a season being reckoned at 100 days, with 400 miners inches of water available, 40, 000 cubic yards of gravel were moved, at a cost not far from 50 cents per cubic yard. It is expected that-mining will be done in the fu. . . This item ships from La Vergne,TN. Paperback. Bookseller Inventory # 9781231300084

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2.

Chester Wells Purington
Published by RareBooksClub.com (2012)
ISBN 10: 1231300086 ISBN 13: 9781231300084
New Paperback Quantity Available: 1
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Book Description RareBooksClub.com, 2012. Paperback. Book Condition: New. Ships with Tracking Number! INTERNATIONAL WORLDWIDE Shipping available. Buy with confidence, excellent customer service!. Bookseller Inventory # 1231300086n

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