Natural Rock Asphalts And Bitumens Their Geology History Properites Ad Indust
Natural Rock Asphalts And Bitumens Their Geology History Properites Ad Indust
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In the bottom of the Bay of Cardenas itself are to be found deposits of a very pure bitumen, so pure in fact that by the very simple method of dissolving it in turpentine, a very serviceable black varnish is obtained. This material has been collected for the past forty years by mooring a lighter over the N. R. A. I 114 NATURAL ROCK ASPHALTS place of operation, which is approximately 100 ft. Below the surface of the sea, and then loosening pieces of bitumen by the very crude expedient of droppin...g a pointed iron bar into it from the vessel. When a sufficient amount has been thus broken off, a native diver is sent down, who fills it into a common scoop net in which it is brought to the surface. This bitumen is much like cannel coal in appearance, but it has a much more brilliant lustre. From the Constancia deposit near Diana Key, fifteen miles from the town of Cardenas, which has an area of about 200 yards, it is stated that some 30, 000 tons have already been taken without appreciably reducing the deposit which, like that at Trinidad, is levelled up with new material.
What to read after Natural Rock Asphalts And Bitumens Their Geology History Properites Ad Indust?
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To quickly assess the difficulty of the text, read a short excerpt:
In the bottom of the Bay of Cardenas itself are to be found deposits of a very pure bitumen, so pure in fact that by the very simple method of dissolving it in turpentine, a very serviceable black varnish is obtained. This material has been collected for the past forty years by mooring a lighter over the N. R. A. I 114 NATURAL ROCK ASPHALTS place of operation, which is approximately 100 ft. Below the surface of the sea, and then loosening pieces of bitumen by the very crude expedient of droppin...g a pointed iron bar into it from the vessel. When a sufficient amount has been thus broken off, a native diver is sent down, who fills it into a common scoop net in which it is brought to the surface. This bitumen is much like cannel coal in appearance, but it has a much more brilliant lustre. From the Constancia deposit near Diana Key, fifteen miles from the town of Cardenas, which has an area of about 200 yards, it is stated that some 30, 000 tons have already been taken without appreciably reducing the deposit which, like that at Trinidad, is levelled up with new material.
What to read after Natural Rock Asphalts And Bitumens Their Geology History Properites Ad Indust?
You can find similar books in the "Read Also" column, or choose other free books by Arthur Danby to read onlineMoreLess
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