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Excavation or removal of any such items also must be done under procedures required by ARPA. Encourages the in situ preservation of archaeological sites, or at least the portions of them that contain burials or other kinds of cultural items. Affects previously acquired artifacts. Continues to be amended; National Register of Historic Places [26]
Water causes damage and results from natural occurrences, technological hazards, or mechanical failures. Many cases of water damage can be traced to accidents or neglect. "A great many of the materials that museum objects are made of are highly susceptible to contact with water and can be severely damaged by even brief contact, while others may be exposed to water for longer periods without harm.
Alloying copper with tin to make bronze was first practiced about 4000 years after the discovery of copper smelting, and about 2000 years after "natural bronze" had come into general use. Bronze artifacts from Sumerian cities and Egyptian artifacts of copper and bronze alloys date to 3000 BC. [10]
A museum should carefully monitor the condition of collections to determine when an artifact requires conservation work and the services of a qualified conservator. Work of preventive conservation in a rock wall with prehistoric paintings at the Serra da Capivara National Park. The work consists of filling the cracks to prevent the ...
Diagram describing major steps in post-excavation analysis [1] Post-excavation analysis constitutes processes that are used to study archaeological materials after an excavation is completed. Since the advent of "New Archaeology" in the 1960s, the use of scientific techniques in archaeology has grown in importance. [ 2 ]
Agents of physical force are consistently present throughout the entire processes of conserving and preserving shipwreck artifacts. The retrieval of shipwreck artifacts from the seabed is an extremely intricate and fragile process. Artifacts are extremely delicate, and any slight motion or improper physical contact can cause irreputable damage.
The reasons to restore a building most frequently fall into five main categories. [23] Value - Buildings hold intrinsic value not only in the history of the building, how it was used, but also how it was built. Historic buildings, notably pre-WWII, are built with higher quality materials and built under different standards than modern buildings.
Structural repair to wooden artifacts, as with the conservation of any artifact, should be as unobtrusive as possible. One method for mending separated pieces of wooden artifacts is the use of hot or liquid hide glue. [25] To reverse warping of wooden artifacts, conservators often treat artifacts using pressure.