Outline Introduction to the Mineral Resources of Tennessee
Outline Introduction to the Mineral Resources of Tennessee
George H George Hall Ashley
The book Outline Introduction to the Mineral Resources of Tennessee was written by author George H George Hall Ashley Here you can read free online of Outline Introduction to the Mineral Resources of Tennessee book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Outline Introduction to the Mineral Resources of Tennessee a good or bad book?
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The second place of promise would seem to be the limestone and marble quarries of both East and Middle Tennessee, where often large quantities of refuse rock is available, or is being produced. At such places the 'cost of the limestone is reduced to the mini- mum, and there is apt to be good railroad connection. 36 MINERAL RESOURCES OF TENNESSEE Among the limestones of the Great Valley would be mentioned first the Lenoir limestone, just overlying the Knox dolomite. The Lenoir corresponds in pos...ition with the "Trenton" limestone, extensively used for cement in the northern part of the Appa- lachian Valley. Locally, it is a marble, analysis of which shows as high as 99% of pure calcite. It is closely associated with the Athens shale, which could doubtless furnish the necessary clays for mixing. In places this limestone is several hundred feet thick. Of the other limestones, most of the Chickamauga is low in magnesia, as well as limestones in the Sevier shale. In the Central Basin are a great variety of limestones, most of which are rather high in clay, but they are in the main non-mag- nesian, and in -many places are pure enough for cement.
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