From a waterlogged site to the archaeologist's desk — new packing methods with a minimum of handling

Abstract

AbstractIn connection with a large-scale wetland excavation, new packing methods for heavily deteriorated waterlogged objects have been introduced. The paper describes effective field methods for cleaning, packing and transportation with a minimum of handling. Waterlogged wood is cleaned thoroughly and sealed in perforated polyolefin film, Cryovac, for wet storage. Iron objects are vacuum-packed in airtight bags after flushing with an inert gas. A refrigerated container on site ensures safe storage and transport to the laboratory. The packing procedures are designed to fit the subsequent conservation processes. Different impregnation methods, followed by freeze-drying of the waterlogged wood and dehydration and vacuum impregnation of metals, are described briefly.