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When Willis[1]put together his collections of research works about China in 1907,he dedicated a chapter to the geological development of the Yangtze River.He surely did not anticipate that the following century had witnessed great endeavour from a broad scientific community,but with vigorous debates as to when the modern Yangtze came into existence,with estimates ranging from 40—45 Ma,to a more recent initiation around 1 Ma.In year 1914,Ding Wenjiang,a pioneer geologist of China,made a courageous expedition to the upper Yangtze River.Looking down the slope where a tributary joins the Yangtze,he noticed that the north-flowing tributary was too small to make such a wide valley.He further proposed that
When Willis put together his his collections of research works about China in 1907, he dedicated a chapter to the geological development of the Yangtze River. He surely did not anticipate that the following century had witnessed great endeavor from a broad scientific community, but with vigorous debates as to when the modern Yangtze came into existence, with estimates ranging from 40-45 Ma, to a more recent initiation around 1 Ma.In year 1914, Ding Wenjiang, a pioneer geologist of China, made a courageous expedition to the upper Yangtze River.Looking down the slope where a tributary joins the Yangtze, he noticed that the north-flowing tributary was too small to make such a wide valley .He further proposed that