Conservation of Archaeological Materials

Course Description

Conservation of Archaeological Materials covers techniques of stabilising and preserving deteriorated or corroded artefacts from archaeological sites. Hands-on conservation techniques are taught in seminar and laboratory using chemicals and treatment procedures.

Within the SCNS taxonomy, ANT is the Anthropology prefix and the C suffix marks a combined lecture-and-laboratory course. UWF publishes this at 4 semester hours, with ANT3101 as prerequisite. The contact-hour figure applies the repository's combined-course convention of 20 contact hours per credit, giving 80 — consistent with other four-credit C-form courses in this repository. ⚠ UWF publishes no contact hours, so the figure is derived; confirm with the department.

Conservation is the constraint that determines what excavation is responsible. Material that has reached equilibrium in the ground begins deteriorating the moment it is removed — iron that survived three centuries in an anaerobic deposit can be actively destroying itself within days of exposure — and the treatment is slow, technical, and expensive. Which is why the professional question before any recovery is not whether the material can be lifted, but whether it can be conserved and housed afterwards. A course like this is unusual at undergraduate level and it is genuinely marketable.

Learning Outcomes

Required Outcomes

• Describe the aims and ethics of conservation.
• Describe the distinction between conservation, restoration, and reconstruction.
• Describe reversibility and minimum intervention as guiding principles.
• Describe deterioration mechanisms across material classes.
• Describe the burial environment and equilibrium.
• Explain why removal from the ground initiates deterioration.
• Assess the condition of an artefact and document it.
• Describe examination and analytical techniques used in conservation.
• Describe first aid for finds in the field and on lifting.
• Describe stabilisation of waterlogged organic material.
• Describe treatment approaches for waterlogged wood.
• Describe the conservation of leather, textile, and other organics.
• Describe corrosion processes in iron and copper alloys.
• Describe chloride removal and desalination.
• Describe treatment of marine-recovered metal and concretions.
• Describe the conservation of ceramics, glass, and stone.
• Describe consolidation and adhesives and their selection.
• Describe cleaning decisions and their irreversibility.
• Plan and carry out a treatment under supervision.
• Document treatment fully and to accepted standards.
• Describe preventive conservation and environmental control.
• Describe storage, packing, and display requirements.
• Apply chemical safety practice in a conservation laboratory.
• Describe when to refer material to a professional conservator.

Optional Outcomes

• Describe conservation of composite objects.
• Describe scientific analysis supporting conservation decisions.
• Describe conservation of large waterlogged structures.
• Describe conservation for exhibition and loan.
• Describe disaster planning for collections.
• Describe conservation training and accreditation pathways.

Major Topics

Required Topics

• Aims and ethics of conservation
• Conservation, restoration, reconstruction
• Reversibility and minimum intervention
• Deterioration mechanisms
• The burial environment
• Deterioration on removal
• Condition assessment
• Examination and analysis
• Field first aid for finds
• Waterlogged organic stabilisation
• Waterlogged wood treatment
• Leather, textile, and organics
• Iron and copper alloy corrosion
• Chloride removal and desalination
• Marine metal and concretions
• Ceramics, glass, and stone
• Consolidation and adhesives
• Cleaning decisions
• Carrying out a treatment
• Treatment documentation
• Preventive conservation
• Storage, packing, display
• Chemical safety
• Referral to a professional conservator

Optional Topics

• Composite objects
• Scientific analysis for conservation
• Large waterlogged structures
• Exhibition and loan
• Disaster planning
• Conservation training pathways

Resources & Tools

• Society for American Archaeology (saa.org) — free Principles of Archaeological Ethics; read them in your first archaeology course, not your last. Student membership is inexpensive.
• Register of Professional Archaeologists (rpanet.org) — free; the eligibility criteria tell you exactly what a professional archaeologist is expected to have done, including a field school.
• Florida Division of Historical Resources (dos.fl.gov/historical) — free; Chapter 267, the permitting process, and the Florida Master Site File.
• National Park Service preservation briefs and the Section 106 guidance (nps.gov, achp.gov) — free, and this is the process most professional archaeologists work inside every day.
• Florida Public Archaeology Network (fpan.us) — free public programmes and volunteer opportunities across the state; an unusually good route to real experience for a Florida student.
• Florida Anthropological Society and its journal — regional research, and a genuine route into the state's archaeological community.
• Get to a field school. It is the entry requirement for professional work, it is what employers and graduate programmes look for first, and nothing substitutes for it.
• American Institute for Conservation (culturalheritage.org) — free Code of Ethics and Guidelines for Practice; the professional standard this course is teaching to.
• Conservation of waterlogged material literature — particularly relevant here given UWF's maritime archaeology programme, and directly connected to this repository's ANT3137 guide.
• Safety data sheets for every chemical in the laboratory — free, required to be available, and worth reading before you use anything.

Career Pathways

• Anthropologists and archaeologists — SOC 19-3091.
• ⚠ Cultural resource management is where the jobs are. The great majority of professional archaeologists work in compliance archaeology for consulting firms, agencies, and tribes — driven by Section 106 and state equivalents rather than by research funding. Plan for that rather than for academia.
• Field technician ("shovelbum") — the entry-level role; project-based, travelling, and the standard first job after a field school.
• Crew chief, project archaeologist, and principal investigator — the CRM progression, with a graduate degree generally needed above field technician.
• State and federal agencies — State Historic Preservation Offices, the National Park Service, the Forest Service, and the Army Corps of Engineers.
• Tribal historic preservation offices — a growing and important sector.
• Museums, collections management, and curation — SOC 25-4012 and 25-4013.
• Historic preservation planning at local and state government level.
• Postsecondary teaching and research — SOC 25-1061; requires a doctorate and is highly competitive.
• ⚠ Be realistic about the entry conditions. Field technician work is seasonal, project-based, frequently far from home, and modestly paid; benefits are inconsistent. Many people do it for a few years and then either move up, move into agency or museum work, or leave. Knowing that in advance is better than discovering it.
• A graduate degree is effectively required to advance beyond field technician in this field — plan the pathway early.
• Archaeological conservation technician — a genuinely scarce skill, and undergraduate hands-on conservation experience is unusual enough to be a differentiator.
• Museum conservation support and collections care.
• ⚠ Professional conservator — a distinct profession requiring specialised graduate training; this course is preparation and exposure, not qualification.

Special Information

⚠⚠ Reversibility and minimum intervention — the two rules everything else follows from

• Prefer treatments that can be undone. Conservation materials and methods are superseded, and a treatment that cannot be reversed forecloses every future option — including options nobody has thought of yet.
• ⚠⚠ Do the least that achieves stability. Every intervention removes information: cleaning removes residues, consolidants penetrate and cannot be fully withdrawn, and adhesives contaminate. The impulse to make an object look better is the enemy of the evidence it carries.
• ⚠ Cleaning is irreversible and it is where damage happens. Surface deposits may be corrosion products that record the object's original form, residues that a specialist could analyse, or gilding — and once removed, none of it comes back. Examine before you clean, and ask.
• Stabilise rather than restore. The object's job is to carry evidence, not to look complete.
• ⚠⚠ Document everything you do, in full. What the object was like, what you did, with what materials, at what concentration, and why — an undocumented treatment leaves a future conservator unable to tell original material from intervention, which is among the worst outcomes in the field.
• Know the limit of your competence and refer. Conservation is a distinct profession with graduate training, and a student who stabilises and refers has done the right thing; one who attempts a treatment beyond their training can destroy an object permanently.
• Preventive conservation beats treatment. Stable temperature, humidity, and packaging prevent more damage than any intervention repairs, and it is far cheaper.
• ⚠ Never treat material you do not have authority over, and be aware that conserving looted or unprovenanced material raises the ethical questions set out below.

⚠⚠ Chemical safety in a conservation laboratory

• The catalog states the course uses chemicals and treatment procedures, and conservation laboratories use solvents, acids, alkalis, and consolidants with real hazards.
• ⚠ Read the safety data sheet before using anything, every time, including for materials you have used before — formulations change.
• Use the fume hood for solvents and for anything that off-gasses, and never assume a room is adequately ventilated because it does not smell strongly.
• ⚠⚠ Solvent exposure is cumulative. Repeated low-level exposure causes real harm, and the effects are chronic rather than acute, so nothing warns you at the time.
• Wear the right gloves. Glove material must match the chemical — the wrong glove can be worse than none, because it holds the solvent against the skin.
• Eye protection whenever anything is being handled, including other people's work.
• Know where the eyewash, shower, spill kit, and extinguisher are before you start, and know the disposal route for each waste stream.
• ⚠ Some treatments produce hazardous waste — chloride removal solutions and solvent waste cannot go down a drain.
• Label everything, including working solutions, and never leave an unlabelled container.
• Report spills and exposures immediately rather than cleaning them up quietly.

⚠⚠ Excavation is destruction — this is the discipline's founding constraint

• An archaeological site can be excavated once. Removing an artefact destroys its context permanently, and context is where nearly all the information is — an object without its associations is a curiosity rather than evidence.
• ⚠ Which is why recording is the actual work. The excavation produces notes, drawings, photographs, elevations, and samples; the site itself is gone, and the record is all that survives of it. A dig with poor records has destroyed a site and produced nothing.
• ⚠⚠ Do not excavate what does not need excavating. Modern practice presumes preservation in place: survey, non-invasive methods, and leaving the deposit for better techniques later are frequently the professionally correct answer, and a research question that could be answered without digging should be.
• Sample deliberately and leave some of the site intact where you can, so future archaeologists with better methods have material to work with. Everything we can do now, someone will do better in fifty years.
• ⚠ Excavation without a curation plan is destruction with extra steps. See the curation note below — artefacts that cannot be housed, catalogued and kept accessible have not been saved.
• Publish, or the destruction was for nothing. Unpublished excavation is a recognised and serious failure in this discipline, and a substantial amount of twentieth-century fieldwork sits unreported in boxes.
• Record what you did not find as well as what you did. Negative evidence is evidence, and it is routinely discarded.
• ⚠ Stratigraphy cannot be reconstructed after the fact. If the layers were not recorded as they were removed, the sequence is lost, and with it the chronology.

⚠⚠ The antiquities market, human remains, and the curation crisis

• ⚠⚠ Do not buy, sell, or appraise antiquities. The professional societies' ethics principles treat commercialisation of the archaeological record as incompatible with the discipline, because market demand is what funds looting — and looting destroys context, which destroys the information, permanently.
• An artefact with no provenance is frequently a looted artefact, and authenticating or publishing one raises its market value and rewards the destruction that produced it.
• ⚠ Human remains require consultation, not just permits. Descendant communities have legitimate authority over the treatment of their ancestors, and the discipline's history here is genuinely bad — remains were collected, measured, and retained without consent for well over a century.
• Consult early and continuously, not at the end. Consultation presented as a formality after decisions are made is not consultation, and it is recognised as such.
• Treat remains with the care you would want for your own relatives, including in photography, in storage, and in how they are discussed.
• ⚠⚠ The curation crisis is real and it is the discipline's quiet failure. Repositories across the country are full; excavated collections sit uncatalogued, inaccessible, and in some cases deteriorating, and some institutions will no longer accept new material. Curation is expensive, it is permanent, and it must be funded before excavation, not after.
• Budget for curation in the project, and confirm a repository will accept the collection before a trowel goes in the ground.
• Existing collections are an underused research resource. A great deal of publishable work can be done on material already excavated and never analysed — and it costs no new destruction.
• ⚠ Archaeology has been used to support political claims about land and identity, sometimes disastrously. Interpretations carry consequences beyond the discipline, and stating the strength of the evidence honestly matters.

⚠⚠ Archaeology is heavily regulated — and most American archaeological work exists because of it

• The National Historic Preservation Act, and particularly its Section 106 process, requires federal agencies to consider the effects of their undertakings on historic properties. ⚠ This is the single largest driver of archaeological employment in the United States — the great majority of professional archaeologists work in compliance, not academia.
• The Archaeological Resources Protection Act (ARPA) governs archaeological resources on federal and tribal land, requires permits for excavation, and makes unauthorised excavation, removal, and trafficking a federal offence with substantial penalties.
• ⚠⚠ NAGPRA — the Native American Graves Protection and Repatriation Act — governs human remains, funerary objects, sacred objects, and objects of cultural patrimony. It creates consultation and repatriation obligations and it changed the discipline profoundly. Understand it as a legal requirement and as an ethical correction to a real history, not as an obstacle.
• ⚠ Florida: Chapter 267, Florida Statutes vests authority in the Division of Historical Resources and declares archaeological resources on state-owned land and on state-owned submerged land to be state property. Collecting from them without a permit is unlawful.
• ⚠⚠ Florida section 872.05 makes it a felony to knowingly disturb an unmarked human burial. Unmarked burials are common on Florida sites, and if human remains are encountered, work stops and the process defined by that statute is followed — this is one of the most important things a Florida archaeologist knows.
• The Florida Master Site File is the state's inventory of archaeological and historical sites; recording sites into it is a professional obligation, and consulting it is the first step of any project.
• State and local permits, and tribal consultation, apply on top of the federal framework.
• ⚠ Metal detecting and surface collecting are restricted on public land and prohibited on many sites; a hobby elsewhere is an offence here.
• ⚠ Rule 11 applies. Preservation law, regulations, and tribal consultation requirements change — verify with the State Historic Preservation Office and the relevant agency rather than relying on this guide.

How Florida course levels affect transfer

The first digit of an SCNS number denotes the year of offering, not transferability. Courses at the 1000 and 2000 levels transfer transparently between Florida public institutions, and 3000 to 4000 is unproblematic since both are upper division. The boundary that actually matters is 2000 to 3000, where lower-division credit generally cannot satisfy an upper-division requirement — and it is live across this prefix, most of which sits at the upper-division levels.

ANT4182C is 4 semester hours at the University of West Florida, with ANT3101 as prerequisite.

Hands-on undergraduate conservation experience is unusual and genuinely marketable — and it pairs directly with this repository's ANT3137 (Shipwreck Archaeology) guide given UWF's maritime programme.