Conservation Science

bulking agent (PEG 200–600, 30–40% w v^1 ) and a lumen-filling treatment (PEG 2000–4000, 70–100% w v^1 ). Recent investigation ...

Conservation of Ancient Timbers from the Sea 307 6 Conclusions With the passive storage of waterlogged wooden artefacts, the maj ...

308 Chapter 11 With the active conservation of waterlogged archaeological wood, the major problem is not that we do not have ade ...

CHAPTER 12 In-situPreservation of Waterlogged Archaeological Sites DAVID GREGORY AND HENNING MATTHIESEN Department of Conservati ...

three options: Passive preservation, i.e.leave the site as it is, the environment is safe; Active preservation, i.e.influence en ...

level in a dipwell can be made using a “dipmeter”, consisting of a probe on a graduated cable or tape measure, which gives an au ...

Unfortunately, electrodes forin situmeasurements are not available for all parameters yet, and the price of the electrodes may b ...

is used by microorganisms or reduced species in the water. A similar pattern has been observed when monitoring the redox potenti ...

unreliable results. The redox electrodes are connected through a high- impedance voltmeter or pH meter to a reference electrode ...

Several different methods have been used for determining pH in these pro- grammes. Most have focused on pore water in the soil, ...

not be conducive to preservation. Ideally these materials are placed on the site with the minimum amount of disturbance to both ...

of PVC, fixed at one end. A series of small cylindrical wood samples are threaded onto the pole by means of holes drilled throug ...

part of a “three-pronged” approach to the successfulin situpreservation of an archaeological site, namely: (i) environmental mon ...

In-situ Preservation of Waterlogged Archaeological Sites 319 A B Figure 4The find layers typically found in Nydam. Finds are pri ...

condition of finds from excavations in the 1990s, are under most threat of deterioration if left in situ. 4.2 Deterioration and ...

around the outer 1–2 mm, which was seen to be an effect of degradation by soft rot fungi, which are known to require oxygen for ...

cell wall and most of the primary cell wall had been utilised by micro- organisms. All that remained was the compound middle lam ...

are especially important if larger oak timbers, which from existing data are potentially not as degraded as the smaller artefact ...

The state of preservation of iron artefacts from Nydam showed a very vary- ing picture, with some objects being completely conve ...

The results indicate that the overall deterioration pattern observed today is a function of the first few years after deposition ...