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Objects Specialty Group Conservation Wiki
Contributors: Claudia Chemello, Nichole Daub, Suzanne Davis, Michell Gilman, LeeAnn Barnes Gordon, Susanne Grieve, Dawn Lohnas, Vanessa Muros, Ida Pohorlijakova, Carrie Roberts, Julie Unruh, Jessica Walthew, and Emily Williams
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Copyright: 2011. The Objects Group Wiki pages are a publication of the Objects Specialty Group of the American Institute for Conservation of Historic and Artistic Works. The Objects Group Wiki pages are published for the members of the Objects Specialty Group. Publication does not endorse or recommend any treatments, methods, or techniques described herein.
Archaeological conservation is a profession devoted to the preservation of the archaeological record including large-scale features such as sites, structures, and landscapes, as well as artifacts. Archaeological conservation is guided by ethical principles that derive from the understanding that these materials are "primary resources for understanding and interpreting the past."
Archaeological remains are found throughout the world in areas of past and current human habitation. Archaeological explorations uncover artifacts found in wide-ranging places, from objects buried deep under the sea  and in the most extreme environments that humans have explored to materials found practically in our own backyards. Consequently archaeological conservators work all over the globe: in the field as well as in museums, collections and in private practice.
While excavation allows us to learn a great deal about the past through studying archaeological remains and their context, exposing artifacts that have been buried can cause rapid and irreversible deterioration. Archaeological conservators work to stabilize and preserve the material remains of the past, as well as to investigate how things were made, used, and disposed of. Working with other archaeological professions (e.g. bio-archaeologists, paleobotanists, architects, archaeochemists, art historians, etc.), conservators contribute to a better understanding of the past.
Archaeological materials and context[edit | edit source]
Archaeological conservators can work on a large scale (on sites, architectural structures, and landscape features) as well as on a smaller scale on movable artifacts. In a broader context, conservators are also sometimes called upon to help preserve intangible aspects of cultural heritage, for example sightlines or the historic roads and paths which structure visitor experience. Though almost all archaeological conservation thus far has occurred on Earth, there is concern about the future preservation of historic information like the footprints left on the moon by the Apollo astronauts. 
In situ remains vs. movable objects[edit | edit source]
At many archaeological sites complexes of buildings or monuments are found in relation to one another and remain in situ while smaller objects may be removed from the site for further study and safe storage in secure depots. Large building structures, floor mosaics, walls and wall paintings, altars, and other large monuments are often left in situ and therefore have different preservation needs from those smaller objects which have been removed from the site. In addition to exposure to the elements, archaeological remains on sites are exposed to visitor traffic, vandalism, and iconoclasm.
The movement (and subsequent treatment) of archaeological materials can be a highly contentious subject, and archaeologists as well as conservators should be aware of the deep literature on the political, historical and sociological ramifications of archaeological practice. Today, most archaeological materials remain in the countries where they are excavated, in local storage depots or local or national museums. In the past, foreign excavations made legal arrangements with the government to share and bring back some of the archaeological finds, so many archaeological materials were removed from sites and brought to museums or university collections in other countries. In addition, the legal and illegal trade in antiquities has brought many objects far from their original contexts. Archaeological conservators are bound by professional ethics to preserve archaeological remains and evidence of their context, but individual cases may raise additional ethical questions.
Deterioration and preservation[edit | edit source]
Burial environment affects the deterioration and preservation of archaeological remains. Exposure to moisture, oxygen, heat, and agents of biodeterioration speed up decomposition in burial. For terrestrial environments, soil conditions (e.g. moisture, pH, salinity, and ground water penetration) have a large effect on the types of materials that are preserved.Inorganic materials tend to remain better preserved in a wider variety of conditions compared to organic materials. Of course, inorganic materials also change through burial: metals corrode and weaken, and porous materials like stone and ceramic can be broken or absorb harmful salts. For the most part,organic materials do not survive well in burial conditions that subject them to periodic moisture, allowing organic decomposition and biological attack. Organic materials are usually best preserved in hot, dry environments (like in Egypt) or in wetter, colder environments where they remain in relatively constant temperatures with low oxygen exposure. Surprisingly, sometimes organic materials do survive in marine environments (e.g. wooden shipwrecks). Waterlogged materials require special care after excavation and organic materials are often consolidated or impregnated with conservation materials (e.g. Polyethylene glycol [PEG] or other resins, or polysaccharides) to allow their study after excavation from marine environments.
Finding an archaeological conservator[edit | edit source]
This section should include the basic info about who archaeological conservators are and how to find one that is best for a particular project. (sugg. 3 paragraphs)
AIC Find a Conservator tool[edit | edit source]
Please follow this link to the Find a Conservator tool on the AIC's website.
How to ensure a good fit for your project[edit | edit source]
(Types of information that an archaeologist should provide about a site ex. types of artifacts expected, timing, where artifacts will be stored, equipment on site, etc., and questions to ask an archaeological conservator)
Theoretical approaches and ethical considerations[edit | edit source]
Include general statements touching on each of these topics, roughly 1-2 paragraphs for each bullet points and referencing significant publications on these topics.
a. Objectives of archaeological conservation (data preservation; facilitating interpretation of a site/object; preserving structural, chemical, and physical integrity of materials for future study and use; accessibility)
b. Processes of conservation: investigation, intervention, preventive care/maintenance
c. Collaboration and communication (with archaeologists, research specialists, scientists; national/regional antiquities authorities; local community; practical adaptations to limited economic/human resources)
d. Objects with unknown provenance, illegally exported material, looted artifacts
e. Standards for practice and codes of ethics (bullet point list of conservation and archaeological organizations, museums with hyperlinks)
f. US federal legislation; international treaties, conventions, and charters for the protection of cultural property (annotated bullet point list with hyperlinks where possible)
Links to codes of ethics[edit | edit source]
AIA code of ethics 
AIC code of ethics 
SAA Principles of archaeological ethics 
SHA ethics statement http://www.sha.org/about/ethics.cfm
Archaeological conservation in practice[edit | edit source]
An introduction to where archaeological materials may be encountered in conservation, distinctions/generalizations of working with archaeological materials in these contexts, and references to major publications. (sugg. paragraph for each subheading)
Training[edit | edit source]
This links to a page on Archaeological Conservation in the Field that covers pre-excvation planning, field labs, techniques, personal safety, etc.)
Archives and repositories[edit | edit source]
Laboratory conservation[edit | edit source]
(institutional and private collections)
Community outreach[edit | edit source]
Conservation and care of specific archaeological materials[edit | edit source]
Siliceous materials[edit | edit source]
Metals[edit | edit source]
This information is intended to be used by conservators, museum professionals, and members of the public for educational purposes only. It is not designed to substitute for the consultation of a trained conservator. To find a conservator, please visit AIC's Find a Conservator page. For more information visit AIC's Resource Center.
The treatment of freshly excavated archaeological metals is a complicated subject. Metal preservation varies based on types of objects, soil composition and pH, and exposure to the elements, all of which are variables specific to each archaeological site. Even within a single site, there can be significant variation. Conservators working on site may face limited time, space, and other resources, particularly with regard to analytical equipment and chemicals normally available in more established laboratories. Treatment of metal objects on an archaeological site is typically broken down into two phases: on site (in the trench) stabilization for excavation and lifting (involving conservators as necessary) and cleaning, stabilization, and repair in the lab after excavation.
Stabilization for Excavation and Lifting
Archaeological metals are likely be structurally deteriorated due to corrosion in the burial environment. Metal tools should be avoided, and softer tools like wooden or plastic skewers, spatulas, brushes, or air puffers should be used to loosen the soil around the object to prepare for lifting without damaging the surface. Facing with tissue may be necessary to preserve the arrangement of dislocated fragments in order to safely remove the metal artifacts from the ground. If metals are moist while in the ground, they should be kept damp to avoid rapid drying until they can be treated by conservators. Metals should be cushioned during transport to the laboratory. An initial identification from the excavator will help determine the course of treatment in the conservation lab, but burial dirt can obscure important details, such as remnants of gilding or surface inscriptions, so metals should be examined by a conservator as soon as possible after they are removed from the ground. In complicated situations, additional measures such as applying a layer of cyclododecane or additional support from aluminum foil can be used to allow fragile objects to be lifted from the ground.
Cleaning, Stabilization, and Repair
Generally, conservators try to use the least interventive approach possible with the goal of stabilizing the metal object to enable study, safe handling, and long- term preservation in proper storage conditions. For metals such as lead, gold, and silver, this may indeed mean “minimal” treatment when the objects are well preserved. These metals are frequently only lightly brushed off and are generally cleaned without the use of water or solvents. They may occasionally be coated, but usually only when intensive handling is expected.
Archaeological iron may also vary in condition, with surfaces obscured by iron oxide corrosion products, while some artifacts are completely converted to magnetite from contact with the burial environment. Typically iron objects are cleaned of surface dirt with soft tools and may be coated/consolidated if in fragile condition due to extensive corrosion and/or mineralization. Coating is usually carried out after a soak in solvent to dehydrate the metal. In some cases, iron objects may continue to “sweat” or “weep” due to continued corrosion from exposure to high RH environments after excavation. (See CCI Notes 9/1 and 9/6 for more information).
Copper alloys (bronze, brass, arsenical copper alloys, etc.) vary widely in their state of preservation upon excavation due to their composition, history of use, and burial conditions. In the field, conservators generally categorize objects as copper alloy (a generic term) unless it is possible to make a more specific identification through microchemical tests or other analysis. While some copper alloys are well preserved, many suffer from what is termed “bronze disease,” and conservators must intervene to prevent further corrosion of the metal post-excavation that can have devastating effects and cause the eventual disintegration of the object. Special care must be taken with gilt or silvered surfaces, the upper layers of which may be compromised due to corrosion of the underlying copper-alloy metals.
“Bronze disease is a progressive deterioration of ancient copper alloys caused by the existence of cuprous chloride (nantokite) in close proximity to whatever metallic surface may remain. Cuprous chloride may lie dormant until reaction with moisture and oxygen causes this unstable compound to expand in volume on conversion to one of the copper trihydroxychlorides. This creates physical stress within the object affected, resulting in cracking or fragmentation.” (Scott 2002, p 125)
While studies of bronze disease date back over 100 years (with early work by Rathgen and Berthelot), the reactions between the copper corrosion products formed in burial are thermodynamically complex and not yet completely understood (Scott 2002, 129). One assumption has been that high (free) chloride contents in excavated metals indicate susceptibility to further corrosion, and that cleaning and desalination are needed to stabilize the metal. Historically many different treatments have been undertaken to preserve copper alloys from archaeological contexts, both in the field and later in museum collections. In recent decades, treatment of archaeological metals on site has typically included one or more of the following steps: (1) mechanical cleaning, usually aided by (2) water or solvents, (3) desalination through soaking in deionized water, (4) treatment with corrosion inhibitors such as benzotriazole, and (5) coating with synthetic resins to provide a barrier layer to protect the object from handling. Other chemical, electrochemical and electrolytic methods have also been used to clean copper alloys, through these techniques can be quite damaging and may aggressively strip away surface patina if not performed in a controlled manner. Conservators should always try to document and preserve surface information embedded in corrosion products, such as pseudomorphs indicating contact with other materials (e.g. textiles or wood).
Benzotriazole (BTA) as a corrosion inhibitor has been extensively used but questions remain about its efficacy. It is usually applied in an ethanol solution in low concentrations with the aid of a vacuum dessicator (this protocol seems to have been in use since at least the 1970s at the Institute of Archaeology, London) (Scott 2002, p379). BTA molecules are thought to complex with CuCl preventing further bronze disease outbreaks from occurring. However, in many cases the chloride corrosion is not stabilized by one treatment of BTA, and other methods may be required to stabilize problematic objects. Other corrosion inhibitors such as cysteine and AMT (5-amino-2-mercapto-1,3,4-thiadiazole) have also been tested, but BTA remains the most commonly used (see 2015 Copper Alloy Treatment Survey).
Coatings and Adhesives
Many metals found in excavation are fragmented and may need to be reconstructed after cleaning and initial study. Metals are often coated to prevent damage from handling, and the coating additionally consolidates the surface in cases in which corrosion has caused loss of structural or surface integrity. Today, stable, non-yellowing, and reversible acrylic resins such as Paraloid B72, B44 or B48N [Rohm and Haas] are commonly chosen for this purpose, and these same resins are used in thicker concentrations as an adhesive for joining metal fragments.
Preventive measures to prevent further corrosion include storing the metal in a dry storage environment, as exposure to moisture and oxygen lead to active corrosion. Some conservators have experimented with the use of oxygen scavengers and non-permeable films to encapsulate metals for additional protection (e.g. the Revolutionary Protection "RP" System). Proper protective housing using archival quality materials is important to protect the objects from harm while stored in an archaeological depot or museum storage.
Organic materials[edit | edit source]
English Heritage Guide to preserving waterlogged organic artifacts 
Textiles are comprised of animal or plant fibers that have been shaped or woven into fabric. Animal fibers such as wool consist primarily of protein and are more resistant to decay. Plant fibers such as cotton consist primarily of cellulose and are more susceptible to bacteria and decay in archaeological environments. The most common textile materials found on archaeological sites are cotton, wool, and silk (Hamilton 2011).
The treatment of a textile depends on the condition when found in the archaeological record. Because textiles are typically fragile from various factors of deterioration including original use, hydrolysis, staining, and oxidation, it is imperative that the textile is handled with great care. Mechanical cleaning a textile is the manual process of using tools to remove unwanted silt, dirt, and sediment that have adhered to the surface of the textile (CCI 2011).
Textiles tend to trap dust and sediment due to their fibrous texture and porous nature (CCI 2011). If left in place, dust and sediment can be a source of further deterioration allowing silt particles to rupture delicate animal and plant fibers (Cronyn 1990). For example, “gritty particles (especially crystalline materials) have sharp edges that abrade and cut fibres when the textile is moved or manipulated” (CCI 2011). Dust and sediment particles can attract destructive materials from the atmosphere including acidic or oxidizing agents that, combined with moisture can instigate destructive chemical reactions (CCI 2011).
Mechanical cleaning of archaeological textiles is effective for removing the surface particles. The removal of stains often requires chemical cleaning or washing that should only be carried out by a professional textile conservator (CCI 2011). Prior to cleaning the textile, it is important to understand the nature of the soil in regards to the context of the artifact. For example, “battlefield on a military uniform may provide documentary evidence about how the textile was used, and should be retained” (CCI 2011). Dirt and sediment that has accumulated due to the location or storage of the artifact usually has no significance and should be removed. The condition of the textiles must also be considered. If a textile is in good, sturdy condition it is unlikely mechanical cleaning with soft brushes or a low suction vacuum will damage the artifact. However, if the textile appears fragile with unstable fibers the object should not be mechanically cleaned (CCI 2011).
The mechanical cleaning of a textile involves the use of tools such as scalpels, dental picks, brushes, sponges, ultrasonic tools, and low suction vacuum cleaners. Before the cleaning begins, it is important to place the textile on a clean flat surface or rigid support based on the needs of the textile (Peacock 2005). Light suction with a vacuum cleaner can be one of the easiest ways to mechanically clean a textile. The entire surface of the textile should be covered with a nylon monofilament screening to protect the textile and prevent loose fibers from being drawn into the nozzle of the cleaner (Finch et al 1977). The screening should be firm and rigid allowing the nozzle of the cleaner to move over the entire surface of the textile until it has been thoroughly cleaned. The use of nylon monofilament screening makes mechanical cleaning safe for the textile and efficient and easy for the operator (Finch et al 1977).
When textiles are too fragile for vacuum cleaning, tool such as brushes, sponges or tweezers might be useful (Cronyn 1990). These tools can be found at artist suppliers or cosmetic counters. Tweezers can be used to carefully remove particles by picking them off, when done carefully this method is less forceful than vacuum cleaning (CCI 2011). When using brushes and sponges follow the direction of the warp or weft pattern if one is present. Gently roll brushes or sponges over the soiled textile surface instead of dragging; this will prevent further deterioration of the textile (Finch et al 1977). Work slowly and methodically to clean the entire surface of the textile, repeating the process on the reverse side.
Ultimately, mechanical cleaning is not always possible with all textiles. Textiles can often times be too delicate to undergo the manual process of removing dirt, sediment, and staining. A conservator who specializes in textile conservation should carefully evaluate these textiles for future cleaning and treatment.
Professional organizations, committees, and working groups[edit | edit source]
- Archaeological Discussion Group (OSG, AIC)
- Archaeological Institute of America (AIA)
- Conservation and Site Preservation Committee (AIA)
- Cultural Heritage Policy Committee (AIA)
- American Schools of Oriental Research (ASOR)
- Society for Historical Archaeology (SHA)
- Society for American Archaeology (SAA)
- International Institute for Conservation of Historic and Artistic Works (IIC)
- The Institute of Conservation (ICON)
- Archaeology Group (ICON)
- International Council on Monuments and Sites (ICOMOS)
- U.S. National Committee of the International Council on Monuments and Sites (US/ICOMOS)
- Numerous International Scientific Committees, including Underwater Cultural Heritage, Archaeological Heritage Management, and Wall Paintings, etc.
- International Committee of the Blue Shield (ICBS, ICOM)
- International Council of Museums - Committee for Conservation (ICOM-CC)
- Wet Organic Archaeological Materials Working Group (ICOM-CC)
- International Centre for the Study of the Preservation and Restoration of Cultural Property (ICCROM)
- InternationalCommittee for the Conservation of Mosaics (ICCM)
- MOSAIKON (the Getty Conservation Institute, the Getty Foundation, ICCROM, and ICCM)
- U.S. Committee of the Blue Shield (USCBS)
Continue creating headers as appropriate[edit | edit source]
Subheadings use this formatting[edit | edit source]
Further reading[edit | edit source]
Bourque, B.J. et al. 1980. Conservation in archaeology: moving toward closer cooperation. American Antiquity 45(4): 794-799.
Caple, C. 2000. Conservation skills: judgement, method and decision making. New York: Routledge.
Cronyn, J.M. 1990. The elements of archaeological conservation. New York: Routledge.
Hodges, H.W.M. and Corzo, M.A. 1987. In situ archaeological conservation. Proceedings of the Instituto Nacional de Anthropologia e Historia de Mexico and the Getty Conservation Institute Meetings, Mexico City, Mexico, 6-13 April 1986. Los Angeles: The Getty Conservation Institute.
Lipe, W.D. 1974. A conservation model for american archaeology. The Kiva 39(3-4): 213-45.
Roy, A. and P. Smith, eds. 1996. Archaeological conservation and its consequences. IIC preprints. International Institute for Conservation Congress, Copenhagen, Denmark, 26-30 August 1996. London: IIC.
Rozeik, C., A. Roy, and D. Saunders, eds. 2010. Conservation and the Eastern Mediterranean, contributions to the Istanbul Congress, 20-24 September 2010. London: IIC.
Stanley Price, N., ed. 1995. Conservation of archaeological excavations: with particular reference to the Mediterranean area. 2nd ed. Rome: ICCROM.
Torraca, G. 1982. Porous building materials: materials science for architectural conservation. 3rd ed. Rome: ICCROM.
Torraca, G. 2009. Lectures on materials science for architectural conservation. Los Angeles: J. Paul Getty Trust. Available on-line at: http://www.getty.edu/conservation/publications_resources/pdf_publications/pdf/torraca.pdf
Watkinson, D. and V. Neal. 1988. First aid for finds. 3rd ed. Hertford, Hertfordshire: British Archaeological Trust/UKIC Archaeology Section.
Williams, E. and C. Peachey. 2010. The conservation of archaeological materials, current trends and future directions. Oxford: British Archaeological Reports, International Series 2116.
Archaeology and conservation
Archaeological Institute of America. Archaeology 101. http://www.archaeological.org/pdfs/education/Arch101.2.pdf
Archaeological Institute of America. Archaeology books for adults. http://www.archaeological.org/pdfs/education/biblios/AIAadult_books.pdf
Matero F. 2006. Making archaeological sites: conservation as interpretation of an excavated past. In Of the past, for the future: integrating archaeology and conservation, proceedings of the conservation theme at the 5th World Archaeological Congress, Washington, D.C., 22-26 June 2003, The Getty Conservation Institute symposium proceedings series, ed. N. Agnew and J. Bridgeland. Los Angeles: The Getty Conservation Institute. 55-63.
Matero, F. 2008. Heritage, conservation, and archaeology: an introduction. http://www.archaeological.org/news/hca/89
Rotroff, S. 2001. Archaeologists on conservation: how codes of archaeological ethics and professional standards treat conservation. Journal of the American Institute for Conservation 40: 137-146.
Sease, C. 1992. A conservation manual for the field archaeologist. 2nd ed. In Archaeological research tools, vol. 4. Los Angeles: Institute of Archaeology, University of California.
Society of Historical Archaeology. Conservation FAQ's and Facts. http://www.sha.org/research/conservation_facts/conservation_facts.cfm
Payton, R., ed. 1992. Retrieval of objects from archaeological sites. Denbygh, Wales: Archetype.
UKIC Archaeology Section. 1983. Conservation guidelines no.2, packaging and storage of freshly excavated artifacts from archaeological sites. London: UKIC.
Watkinson, D., ed. 1987. First aid for finds. 2nd ed. London: UKIC Archaeology Section.
Conservation of structures and sites
Agnew, N. and J. Bridgland, eds. 2006. Of the past, for the future: integrating conservation and archaeology. Proceedings of the Conservation Theme at the 5th World Archaeological Congress, Washington, D.C., 22-26 June 2003. Los Angeles, The Getty Conservation Institute.
Ashurt, J., ed. 2007. Conservation of ruins. Oxford: Elsevier Ltd.
De la Torre, M., ed. 1997. The conservation of archaeological sites in the Mediterranean region: report on an international conference. Los Angeles: The Getty Conservation Institute.
Demas, M. 2003. Conservation and management of archaeological sites. A select annotated bibliography. The Getty Conservation Institute Project Bibliography Series. Available on-line at: http://www.getty.edu/conservation/publications_resources/pdf_publications/pdf/archaeology_bib.pdf
International Council of Monuments and Sites. 1964. The international charter for the conservation and restoration of monuments and sites (The Venice Charter). Available on-line at: http://www.icomos.org/charters/venice_e.pdf
International Council of Monuments and Sites. 1990. Charter for the protection and management of the archaeological heritage. Available on-line at: http://www.international.icomos.org/charters/arch_e.pdf
Kavazanjian, E., Jr. 2004. The use of geosynthetic for archaeological site reburial. Conservation and Management of Archaeological Sites 6(3&4): 377-393.
Mertens, D. 1995. Planning and executing anastylosis of stone buildings. In Conservation on archaeological excavations, ed. N. Stanley-Price. 2nd ed. Rome: International Center for the Study of the Preservation and Restoration of Cultural Property. 121-133
Nardi, R. 2010. Conservation in archaeology: case studies in the mediterranean region. http://www.archaeological.org/news/hca/3328
Nixon, T., ed. 2004. Preserving archaeological remains in situ? Proceedings of the 2nd Conference, 12-14 September 2001. London, United Kingdom.
Roby, T., L. Alberti and E. Carbonara. 2011. Technician Training for the Maintenance of In Situ Mosaics: 2011 Edition. Los Angeles: The Getty Conservation Institute. Available on-line at: http://www.getty.edu/conservation/publications_resources/pdf_publications/pdf/tech_training_en.pdf
Stanley-Price, N. 2009. The reconstruction of ruins: principles and practice. In Conservation: principles, dilemmas and uncomfortable truths, ed. A. Richmond and A. Bracker. Oxford: Elsevier Ltd. 32-46. Available on-line at: http://www.archaeological.org/news/sitepreservation/81
Stanley-Price, N. and R. Burch, eds. 2004. Special issue on site reburial. Conservation and Management of Archaeological Sites. 6(3-4). London: James and James.
Stanley-Price, N. and F. Matero, eds. 2001. Special issue on protective shelters. Conservation and management of archaeological sites. 5(1-2). London: James and James.
Stewart, J. 2012. The stabilization and protection of archaeological sites from natural processes. In Selected readings from a course in the International Centre for the Study of the Preservation and Restoration of Cultural Property ATHAR Programme (Conservation of Cultural Heritage in the Arab Region): Issues in the Conservation and Management of Heritage Sites, ed. International Centre for the Study of the Preservation and Restoration of Cultural Property. Sharjah: International Center for the Study of the Preservation and Restoration of Cultural Property. 83-91.
Sullivan, S. and R. Mackay, eds. 2012. Archaeological sites: conservation and management. Readings in conservation series. Los Angeles: Getty Publications, J. Paul Getty Trust.
Teutonico, J.M. and G. Palumbo, eds. 2002. Management planning of archaeological sites. International Workshop Organized by the Getty Conservation Institute and Loyola Marymount University, 19-22 May 2000. Los Angeles: The Getty Conservation Institute.
Archaeological metals conservation (general)
Canadian Conservation Institute. 2007. Recognizing active corrosion. CCI Notes (9/1) .Canadian Conservation Institute. http://cci-icc.gc.ca/resources-ressources/ccinotesicc/9-1_e.pdf
Gilberg, M. 1987. Friedrich Rathgen: The Father of Modern Archaeological Conservation. Journal of the American Institute for Conservation 26 (2): 105-120. http://cool.conservation-us.org/jaic/articles/jaic26-02-004_4.html Logan, J. 2007. Identifying archaeological metals. CCI Notes (4/1) Canadian Conservation Institute. (original 2002, revised 2007) http://canada.pch.gc.ca/eng/1439925170176
Plenderleith, H.J. 1956. The Conservation of Antiquities and Works of Art, London: Oxford University Press.
Schotte, B. and A. Adriaens. 2006. Treatments of Corroded Lead Artefacts, An Overview. Studies in Conservation (51): 1-8.
Scott, D. 1983. The Deterioration of Gold Alloys and Some Aspects of Their Conservation. Studies in Conservation 28(4): 194-203.
Scott, D., J. Podany, and B. Considine, eds. 1994. Ancient & Historic Metals: Conservation and Scientific Research. Proceedings of a Symposium on Ancient and Historic Metals organized by the J. Paul Getty Museum and the Getty Conservation Institute, November 1991. Los Angeles, Getty Conservation Institute. http://www.getty.edu/conservation/publications_resources/pdf_publications/ancientmetals.html
Selwyn, L. 2004. Metals and Corrosion. A handbook for the conservation professional. Canadian Conservation Institute.
Watkinson, D. 2010. Preservation of metallic cultural heritage. in Cottis, R. A. ed. Shreir's Corrosion. 4th ed., Vol. 4. London: Elsevier, 3307-3340.
Wharton, G. and H.K. Ersoy. 2002. Conservation of Metal Artifacts on Archaeological Sites. Field Notes: Practical Guides for Archaeological Conservation and Site Preservation (Number 11). Japanese Institute for Anatolian Archaeology. (Also in Turkish).
Canadian Conservation Institute. 2011. CCI Notes 13/16 "Mechanical Surface Cleaning of Textiles". In: CCI Notes.1-5. Accessed March 30, 2013. .
Cronyn, J.M. 1990. The Elements of Archaeological Conservation. Routledge, London.
Finch, Karen, and Greta Putnam. 1977. Caring for Textiles. London: Barrie & Jenkins.
Hamilton, Donny. 2011. "Textile Conservation". In: Conservation Research Laboratory of the Nautical Archaeology Program. Texas A&M University. Accessed March 30, 2013. .
Peacock, E. 2005. "Investigation of Conservation Methods for a Textile Recovered from the American Civil War Submarine H.L. Hunley (1864)". In: Proceedings of the 9th Wet Organic Archaeological Materials Conference. Copenhagen.497-512.
Treatment of Archaeological Iron
Canadian Conservation Institute. 2007. Care and cleaning of Iron. CCI notes, 9/6. Canadian Conservation Institute. (originally published 1995). http://canada.pch.gc.ca/eng/1439925170386
---. 2007. Storage of Metals. CCI Notes 9/2. Canadian Conservation Institute. (originally published 1995). http://canada.pch.gc.ca/eng/1439925170350
---. 2013. Tannic Acid Treatment. CCI Notes 9/5. Canadian Conservation Institute. (originally published 1989). http://canada.pch.gc.ca/eng/1439925170382
Green, L. and S. Bradley. 1995.An investigation of strategies for the long-term storage of archaeological iron. Metal 95. London: James & James Ltd. 305-309.
Keene, S. 1984. The performance of coatings and consolidants used on archaeological iron. Adhesives and Consolidants. IIC Paris 1984. International Institute for Conservation of Historic and Artistic Works.
Knight, B. 1990. A Review of the Corrosion of Iron from Terrestrial Sites and the Problem of Post-Excavation Corrosion. The Conservator (14): 37-43.
Mathias, C., K. Ramsdale, and D. Nixon. 2004. Saving archaeological iron using the Revolutionary Preservation System. Proceedings of Metal 2004 National Museum of Australia Canberra ACT (4-8) October 2004. 28-42.
Selwyn, L., P.J. Sirois and V. Argyropoulos. 1999. The corrosion of excavated archaeological iron with details on weeping and akaganeite. Studies in Conservation (44): 217-232.
Selwyn, L. and V. Argyropoulos.2005.Removal of Chloride and iron ions from archaeological wrought iron with sodium hydroxide and ethylenediamine solutions. Studies in Conservation (50): 81-100.
Wang, Q. 2007. An Investigation of Deterioration of Archaeological Iron. Studies in Conservation (52): 125-134.
Watkinson, D. and M. Lewis. 2005. Desiccated storage of Chloride-Contaminated Archaeological Iron Objects. Studies in Conservation (50): 241-252.
Weizhen, O. and X. Chunchun. 2005. Studies on Localized Corrosion and Desalination Treatment of Simulated Cast Iron Artifacts. Studies in Conservation (50): 101-108.
Treatment of Archaeological Copper alloys
Golfomitsou, S., and J. Merkel. 2007. Understanding the efficiency of combined inhibitors for the treatment of corroded copper artefacts. METAL 07 Proceedings of the Interim Meeting of the ICOM-CC Metal Working Group (5): 38-43.
Leyssens, K., A. Adriaens, C. Degrigny. 2005. Electrochemical monitoring of the storage or stabilization of archaeological copper based artifacts in sodium sesquicarbonate solutions. Proceedings of ICOM-CC 14th Triennial meeting. 301-309.
Merk, L. 1978. A study of reagents used in the stripping of bronzes. Studies in Conservation (23): 15-22.
Scott, D. 1990. Bronze Disease: A Review of Some Chemical Problems and the Role of Relative Humidity. Journal of the American Institute for Conservation (29):193-206.
Scott, D. 2002. Copper and Bronze in Art: Corrosion, Colorants, Conservation. Los Angeles, Getty Conservation Institute.
Sharma V.C., U.S. Lal, and M.V. Nair. 1995. Zinc dust treatment-- an effective method for the control of bronze disease on excavated objects. Studies in Conservation (40): 110-119.
Weisser, T. 1987. The Use of Sodium Carbonate as a pretreatment for difficult-to-stabilise bronzes. Recent advances in the conservation and analysis of artifacts. Jubilee conservation conference, London 6-10 July 1987. University of London, Institute of Archaeology, Summer Schools Press. 105-108.
Packing and storage
Braun, T.J. 2007. An alternative technique for applying accession numbers to museum artifacts. Journal of the American Institute for Conservation 46(2): 91-104.
Charette, S. and D.K. Kimbrel. 2006. Rehousing ancient glass. Journal of the American Institute for Conservation 45(2): 79-87.
UKIC Archaeology Section. 1984. Conservation guidelines no.3, environmental standards for permanent storage of excavated material from archaeological sites. London: UKIC.
Cleere, H., ed. 1989. Archaeological heritage management in the modern world. In One world archaeology, vol.9. London and Boston: Unwin Hyman.
Kerr, J.S. 1987. The Australian ICOMOS charter for the conservation of places of cultural significance (the Burra Charter); guidelines to the Burra Charter: cultural significance; guidelines to the Burra Charter: conservation policy. Sidney: Australia/International Council on Monuments and Sites.
Sebastian, L. and W.D. Lipe, eds. 2009. Archaeological and cultural resource management: visions for the future. Santa Fe: School for Advanced Research Press.
Toman, Jiri. 2005. The protection of cultural property in the event of armed conflict. Paris: UNESCO.
Tubb, K.W., ed. 1995. Antiquities: trade or betrayed - legal, ethical and conservation issues. London: Archetype in conjunction with UKIC Archaeology Section.
Wegener, Corine. 2010. The 1954 Hague Convention and preserving cultural Heritage. www.archaeological.org/news/hca/3137
Underwater cultural heritage
Pearson, C. 1987. Conservation of marine archaeological objects. London and Boston: Butterworth & Co. Ltd.
Williams, E. and K. Straetkver, eds. 2010. Proceedings of the ICOM-CC Group 11th Annual Conference. Greenville. Available online at: http://www.lulu.com
Databases of stolen archaeological objects
The Art Loss Register. http://www.artloss.com/en
Commission for Looted Art in Europe. http://www.lootedartcommission.com
International Foundation for Art Research. http://www.ifar.org/home.php
Lost Treasures from Iraq, Oriental Institute, University of Chicago. http://oi.uchicago.edu/OI/IRAQ/iraq.html
National Stolen Art File Search, The Federal Bureau of Investigation. http://www.fbi.gov/about-us/investigate/vc_majorthefts/arttheft
Object Registry: Registry of New Acquisitions of Archaeological Material and Works of Ancient Art, Association of Art Museum Directors. http://aamdobjectregistry.org/Antiquities
Red Lists Database, ICOM. http://icom.museum/resources/red-lists-database/
Online sources for national and international efforts to stop the illegal trade of antiquities
Association for Research into Crimes Against Art http://art-crime.blogspot.com
Cultural Heritage Center, US Department of State http://eca.state.gov/cultural-heritage-center
The Federal Bureau of Investigation Art Theft Program http://www.fbi.gov/about-us/investigate/vc_majorthefts/arttheft
Fighting Illicit Traffic, The International Council of Museums (ICOM) http://icom.museum/programmes/fighting-illicit-traffic/
Heritage at Risk, International Council on Monuments and Sites (ICOMOS) http://www.international.icomos.org/risk/index.html
Object ID, ICOM http://archives.icom.museum/object-id/index.html
SAFE: Saving Antiquities for Everyone http://www.savingantiquities.org
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