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Affiliation(s)
| | | | - Lucian W. Zelazny
- Virginia Polytechnic Institute and State University; Blacksburg Virginia
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Abstract
During a study of the sources of the dusts in South Wales coal mines, carried out on behalf of the Industrial Pulmonary Disease Committee of the Medical Research Council, a mineral of the mica group was found as the main constituent of the shales overlying the coal in several mines. Of six shales investigated four were associated with anthracite, one with semi-bituminous, and one with bituminous coal. Between the coal seam itself and the shale which forms its roof there usually occurs a more coaly shale referred to locally as ‘clod’. Five of the samples investigated were isolated from ‘clods’ and one from a roof.
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KING EJ, RAY SC. The effects of granite on the lungs of rats. BRITISH JOURNAL OF INDUSTRIAL MEDICINE 1950; 7:37-41. [PMID: 15409621 PMCID: PMC1036256 DOI: 10.1136/oem.7.1.37] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
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