The story of Pittsburgh: Radium

Bibliographic data

Multivolume work

Identifikator:: 1831622599

Document type:: Multivolume work

Title:: The story of Pittsburgh

Place of publication:: Pittsburgh

Publisher:: First National Bank

Year of publication:: 1919-1930

Collection:: Economics Books

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Volume

Identifikator:: 1831623226

URN:: urn:nbn:de:zbw-retromon-239786

Document type:: Volume

Title:: Radium

Volume count:: Vol. 1, nr. 7

Place of publication:: Pittsburgh

Publisher:: First National Bank

Year of publication:: 1921

Scope:: [ca. 18] Seiten

Digitisation:: 2022

Collection:: Economics Books

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Chapter

Document type:: Multivolume work

Structure type:: Chapter

Title:: Radium

Collection:: Economics Books

In a desolate section of Southwestern Colorado and in Southwestern Utah there were large deposits of an ore called Carnotite. These cover a territory of about eight hundred square miles. The district in which the greater quantity of these ores was to be found is about sixty-five miles from any railroad and so mountainous that in many places there is a rise or fall in the local trails of two thous- and feet in a mile. Prior to the World War carnotite ores from these Colorado deposits were shipped abroad for French and German production of Radium on a small scale. The embargoes on shipping stopped this export completely, although it had been falling off in quantity. With the decision that these Colorado fields must be the source from which to obtain his ores, Mr. Flannery gave every thought to ways and means. The ore fields are five thousand feet above the sea level. The region was uninhabited and there was little to attract even the pro- spector and less to hold the type of men that could hope fo find a solution of the many different problems involved. In the European ores with which Madame Curie had worked, there was about a gram of Radium in every five or six tons. In the Colorado ores, there is only one gram of Radium in every five or six hundred tons of ore, and in order to obtain each of these five or six hundred tons, it is frequently necessary to handle one hundred tons of worth- less material. The men that had worked with the European ores were so few, they could be counted easily. They were unwilling to work in the wilderness of Colorado. For the new con- ditions, Mr. Flannery trained new men. Headquarters were established at a point central to the work as a whole. A concentration mill was built at a point that was convenient to the manv ore claims that he hought and leased. Burros were used to carry the ores from the deposits in the mountains to this mill, and to carry back to the miners the water and other supplies, for all of which they were dependent upon the general headquarters. Where the ore appeared on the surface and along the rim rocks.

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