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Through researches during recent years in central and southernHunan,it is desirable not only to extend the two well known movements,Caledonian and Yenshanian,but also to apply the new term Hunanian forindicating an orogenic movement which occurred somewhat later than the
Through researches during recent years in central and southernHunan, it is desirable not only to extend the two well known movements, Caledonian and Yenshanian, but also to apply the new term Hunanian forindicating an orogenic movement which occurred somewhat later than the