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Published online by Cambridge University Press: 01 May 2009
To the south of the Tsing-ling Range the above classification of the Sinian System no longer holds good. The Kisinling Limestone of western Hu-peh—a massive grey limestone grading downwards into a slaty limestone and slates—has yielded in its upper part gigantic Orthoceras, or the pagoda stone, and other Ordovician fossils; and is therefore regarded as equivalent to the upper and the middle part of the Sinian in north-east China. Unconformably underlying the Kisinling Limestone, a glacial deposit, the Nantou Tillite, was found by Willis and Blackwelder at Nan-tou, near the north-western entrance of the I-chang Gorge (about long. 111° 10′ E., lat. 30° 45′ N.). Mr. V. K. Ting has verbally informed the writer that this interesting deposit extends towards the south-west for a considerable distance. The occurrence of Asaphus and Trinucleus to the south of Ning-kiang (about long. 106° E., lat. 32° 45′ N.) makes it highly probable that, there, the upper Sinian is exposed among other folded Palæozoic strata.
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page 371 note 1 China, vol. iii, p. 718. The age of the Lunshan Limestone is undoubtedly discussed by Mr. V. K. Ting in a paper on “The Geology below Wu-hu”, Hwangpu Conservancy, 07 or 08, 1919, Shanghai. Unfortunately, the writer is unable to obtain the paper.Google Scholar
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