%0 Conference Paper %B Northeast Conference on Andean Archaeology and Ethnohistory %D 2004 %T Preceramic Utilization of the Alca Obsidian Source: Recent Results %A Kurt Rademaker, %A Sandweiss, Dan %A Malpass, Michael %A Umire, Adam %A Vera Cruz, Pablo de la %A Fortin, Louis %A Morris, Ben %C Yale University