抄録
In ancient quarries, there remain untouched the large and difficult questions of how long ancient quarries could operated and why those quarries were closed. The former question is readily answerable by the supposition that the extraction method of Roman workers cannot have been different from those in the later period and that the manpower requirements are similar to those. The discussions provide some unexpected results such as no more than 100 years of operation and in the final phase the most quarrymen at work at a qurrry in the eastern part of Naslat susayn' Ali, and, even though the inevitable absence of good comparative examples may sometimes mean that the argument cannot get very far, the work as a whole provides an interesting commentary on the nature of late antique quarry operation.