Archaeology Underwater: The NAS Guide to Principles and Practice
When excavation is justified, various strategies can be employed, and each must be evaluated in terms of the balance between inf ...
136 DESTRUCTIVEINVESTIGATIVE TECHNIQUES of the questions will dictate the probing strategy (e.g. readings taken at measured inte ...
DESTRUCTIVEINVESTIGATIVE TECHNIQUES 137 Samples should only be collected if three basic criteria can be satisfied: 1 There shoul ...
138 DESTRUCTIVEINVESTIGATIVE TECHNIQUES check may be required or the sample may get lost. Estimate whether the amount of sample ...
DESTRUCTIVEINVESTIGATIVE TECHNIQUES 139 1989). A careful assessment should be made in choosing the optimum coring location with ...
140 DESTRUCTIVEINVESTIGATIVE TECHNIQUES Make sure that the surface of the deposit is cleaned in the proposed sample area to red ...
DESTRUCTIVEINVESTIGATIVE TECHNIQUES 141 Excavation Archaeological excavation might be defined as the controlled dismantling of t ...
142 DESTRUCTIVEINVESTIGATIVE TECHNIQUES sands, silts and clays, especially when excavating organic and other fragile materials b ...
DESTRUCTIVEINVESTIGATIVE TECHNIQUES 143 and excavation continued. Since context differ- ences tend to be more distinct when cut ...
144 DESTRUCTIVEINVESTIGATIVE TECHNIQUES Even these measures may be inadequate for the most fragile objects such as textiles, lea ...
DESTRUCTIVEINVESTIGATIVE TECHNIQUES 145 larger, long-term projects where more than one airlift is in operation, hoses led direct ...
146 DESTRUCTIVEINVESTIGATIVE TECHNIQUES The water-dredge is used in exactly the same basic way as an airlift in that it should o ...
DESTRUCTIVEINVESTIGATIVE TECHNIQUES 147 Airlifts can be easier to handle than water-dredges, but where water depth is particular ...
much data not recorded in the written historical record can often be revealed through the use of analytical techniques. In addi ...
ARCHAEOLOGICALCONSERVATION ANDFIRST-AID FORFINDS 149 retaining the potential for future analysis; ultimate use (such as display ...
150 ARCHAEOLOGICALCONSERVATION ANDFIRST-AID FORFINDS conditions and nature of the immediate burial context; the juxtaposition o ...
ARCHAEOLOGICALCONSERVATION ANDFIRST-AID FORFINDS 151 or ‘accretions’ (overlying layers) – which may mask original detail; probl ...
152 ARCHAEOLOGICALCONSERVATION ANDFIRST-AID FORFINDS PRINCIPAL RISKS TO FINDS DURING AND AFTER RECOVERY Removal of finds from th ...
ARCHAEOLOGICALCONSERVATION ANDFIRST-AID FORFINDS 153 properly examined, analysed and treated using appro- priate facilities (suc ...
154 ARCHAEOLOGICALCONSERVATION ANDFIRST-AID FORFINDS and those incorporating glass, ivory, jet, shale, amber, leather or textile ...
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