Zhang Changshou
... that Zhang Changshou co-led a Sino-American archaeological project investigating sites that were sometimes buried under more than 10 meters (33 ft) of alluvium?
... that <b id="mwApg"><a href="./Zhang_Changshou" id="mwApk" rel="mw:WikiLink" title="Zhang Changshou">Zhang Changshou</a></b> co-led a Sino-American archaeological project investigating sites that were sometimes buried under more than <span about="#mwt41" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"10"},"2":{"wt":"m"},"sp":{"wt":"us"}},"i":0}}]}' id="mwApo" typeof="mw:Transclusion">10 meters (33</span><span about="#mwt41" typeof="mw:Entity"> </span><span about="#mwt41">ft)</span> of <a href="./Alluvium" id="mwAps" rel="mw:WikiLink" title="Alluvium">alluvium</a>?