Bulletin of the American Institute of Mining Engineers No.67-72 (1912)+index
Bulletin of the American Institute of Mining Engineers No.67-72 (1912)+index
American Institute of Mining Engineers
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. he [Kingsmill] dis- tinguishes two horizons at which coal beds occur ; one, the * lower coal and iron shales,' 600 to 800 feet thick, being near the middle of his ' Tung-t'ing ' series and dividing the great Carboniferous limestone in two ; the other, the upper member of his * Chung-shan ' series, being higher up in the geologic column and in all probability of the same age as the early Jurassic (Rhetic) coals of the Middle Yang-tzi." Comparing the above sections with the observed and reporte...d conditions in the vicinity of Taryeh, it seems a reasonable in- ference that the Ta-yeh limestone is near the top of the Wu- chan (Upper Carboniferous) ; that the red beds at Huang-shi- kiang as well as do\^n the river correspond to the " massive red shale " at the base of the Permo-Mesozoic ; and that the adjacent thin-coal areas, which practically surround the granite ellipse, belong to the Permo-Mesozoic (early Jurassic) coals of Willis, corresponding to the " Chung-shan " coals of Kings- mill.
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