The Australian Historic Shipwreck Preservation Project: In situ Preservation and Long-Term Monitoring of the Clarence (1850) and James Matthews (1841) Shipwreck Sites

Increasingly, archaeologists are opting for on-site examination, reinterment, and in situ preservation of underwater cultural heritage sites as the first option in the management of sites at risk, as opposed to the more traditional excavation, recovery, conservation, and display/storage methods. This decision will inevitably be based on significance assessment, degree of perceived risk, and resourcing issues. However, long-term monitoring must become an integral part of these management programmes in order to quantitatively evaluate the effectiveness of the in situ preservation techniques employed. In 2012 the Australian Historic Shipwreck Preservation Project (AHSPP) was awarded a large Australian Research Council (ARC) Linkage Grant, enabling ten partner organizations and three Australian universities to collaborate in one of the largest multi-organizational maritime archaeology projects to be undertaken in Australia to date. One of the major aims of the project is to develop a protocol for the excavation, detailed recording and reburial of significant shipwrecks under threat, fostering a strategic national approach for the management of underwater cultural heritage (UCH) sites at risk. Two historically significant shipwreck sites that are considered under threat were chosen for this longitudinal comparative study — the Clarence (1850) located in Port Phillip Bay, Victoria; and the James Matthews (1841) which lies in Cockburn Sound, Western Australia. Both sites have been preserved in situ using two very different but innovative remediation strategies. More importantly, long-term monitoring programmes have been implemented on both sites, which will characterize changes in the reburial environment and the effect on the reinterred materials. In this way, the efficacy of both in situ preservation techniques will be systematically tested, providing a comparative analysis of practical protocols for the long-term protection and management of underwater cultural heritage.     

Complications and Effectiveness of In Situ Preservation Methods for Underwater Cultural Heritage Sites

Abstract

Underwater Cultural Heritage (UCH) as an outstanding division of the cultural heritage of humanity appears to be crucial and complicated when more general issues regarding preservation and conservation are raised. The essence of in situ preservation should be equally discussable for any kind of archaeological remains; on land or underwater.

There is a long history of different methods and concepts of intervention in a variety of sub-aquatic archaeological sites; from shipwrecks to submerged settlements. This paper will present an introduction to different techniques and theories of preservation and conservation of underwater cultural and archaeological sites since this kind of heritage has scientifically been explored and studied. A range of different preservation methodologies, from total or partial transference inland, to preservation underwater, will be compared; the advantages and disadvantages of each option will be highlighted. Different examples of international best practices will be illustrated. Different types of in situ conservation/protection will be explained and categorized. Furthermore, there will be a focus on the UNESCO Convention of 2001 on Conservation and Preservation of UCH, where the in situ conservation option has been recommended.

Moreover, the technical issue for preservation of UCH sites, either in situ or after displacement, will be explained. The implication of relocation for different sorts of sites and materials will be argued; for example, cases where some sites, such as shipwrecks, would more easily be displaced compared with submerged settlements, villages, or ports.

Finally, by stressing that the state of ‘being underwater’ makes many sites qualified to be regarded as UCH, the in situ preservation approach will prevail that this state is maintained.     

HMS Falmouth: addressing the significance of a light cruiser lost in the First World War off the coast of Yorkshire

HMS Falmouth is the only known wreck of a Town Class light cruiser, which were ‘arguably the best cruisers of the First World War’ (Lyon, 1977c: 49). This article reports on a project to better understand the significance of the wreck and to raise public awareness of the heritage of the First World War at sea. Although the wreck is heavily degraded it is still of considerable importance, raising methodological questions about the role of multibeam survey and 3D visualization, access to archival material, and the characteristics of archaeology as applied to 20th‐century warships.     

The Western Ledge Reef wreck: a preliminary report on investigation of the remains of a 16th-century shipwreck in Bermuda

In September 1988 archaeologists and students from the Program in Maritime History and Underwater Research at East Carolina University (PMHUR) identified the remains of an early shipwreck during a survey of the Western Ledge Reefs carried out for the Bermuda Maritime Museum (BMM). Structural material exposed at the wreck site proved to be a section of lower hull containing the keel, hull planking, frames, and a portion of the keelson that included a mast-step. In order to recover the archaeological record preserved at the site, the BMM applied for, and received, a licence from the Receiver of Wreck. As work at the site intensified, a prior claim to the wreck was discovered. Discovery of that claim ultimately led to a co-operative agreement between Brian Malpas, Donald Canton and the BMM that permitted on-site investigation to continue. During 1989 and 1990, the site was excavated by the Museum's underwater archaeological staff, the staffand students of the PMHUR and volunteers. In 1990, a comprehensive in situ map of the hull remains was completed and in accordance with the terms of an agreement between Malpas and Canton and the BMM, a team of archaeologists, students and volunteers raised the remains of the Western Ledge shipwreck in August 1991. Each recovered element of the wreck was transported to storage facilities at the museum and catalogued, cleaned, recorded and documented using techniques developed to record the Red Bay galleon. That work was completed in the autumn of 1991 and on 31st October 1991 the wreck structure was donated to the museum for study and possible display.     

Identification of Suspected Horn from the Queen Anne's Revenge (1718), North Carolina,USA

Infrared spectroscopy can be a valuable tool for conservators and archaeologists to help identify archaeological artefacts. We present a case‐study on the identification of an artefact recovered by North Carolina Department of Cultural Resources (NCDCR) Underwater Archaeology Branch from an early‐18th‐century shipwreck (31CR314). The wreck is assumed to be the remains of Queen Anne's Revenge, which sank off the North Carolina coast in 1718. A sample of the artefact was analysed by infrared spectroscopy to identify it. Prior to spectroscopic analysis it was speculated that the sample could be animal horn or leather. © 2011 The Authors     

In Situ Preservation and Monitoring of the James Matthews Shipwreck Site

Abstract

Over the past few decades, the archaeological community has been moving away from the more traditional methods of excavation and recovery of underwater cultural heritage towards a less intrusive management approach, essentially involving the preservation of sites in situ. This trend has been politically galvanized in Article 2, point 5 of the Convention on the Protection of the Underwater Cultural Heritage (), which states that ‘The preservation in-situ of underwater cultural heritage shall be considered as the ?rst option before allowing or engaging in any activities directed at this heritage’. Over the years, a number of different remediation strategies have been utilized in order to protect underwater cultural heritage sites in situ, and most of the techniques or combinations thereof involve reburial of sites. Reburial may be an appropriate means of stabilizing and decreasing the deterioration rate of a site, however, there needs to be a holistic approach to the study of the environment, before and after reburial, to gain a full understanding of the changes that are occurring on the site and determine the effectiveness of the technique.

In early 2000, the James Matthews, a copper-sheathed, wooden-hulled vessel wrecked in 1841 south of Fremantle, Western Australia, was identi?ed as being under considerable threat from increased site exposure due to a combination of natural near-shore sedimentary processes and industrial activity in the immediate area. An extensive on-site conservation survey was carried out to establish the state of preservation of the wreck and provide information regarding the physico-chemical and biological nature of the environment prior to the implementation of any mitigation strategy. In 2003 it was con?rmed that further exposure of the site was occurring and devising a management plan was of paramount importance.

Since this time a number of different reburial techniques have been trialled on the site and these include sand bags of differing material composition, polymeric shade cloth, arti?cial sea grass mats made from polyvinyl chloride bunting, and the use of interlocking medium density polyethylene ‘crash barrier’ units in a cofferdam arrangement to con?ne deposited sand. The geological, physico-chemical, and microbiological changes in the burial environments have been monitored over this time. Furthermore, the broader scale, near-shore sedimentary processes affecting the site are being assessed in order to establish the reasons behind the continuing sediment loss. In situ preservation of the iron ?ttings by cathodic protection has also been included in these ?eld trials. In this paper the results from these experiments will be summarized. This information will be used to ?nalize the design of the full-scale in situ preservation strategy for the site and assist in establishing a post-reburial monitoring programme that will measure the success of the adopted remediation technique.     

As the Sand Settles: Education and Archaeological Tourism on Underwater Cultural Heritage

Underwater cultural heritage sites draw thousands of diving tourists lured by the excitement of shipwrecks and the beauty of the marine environment. Through scientific research and interpretation, archaeologists have the opportunity to educate these visitors about the history of the sites and, perhaps more importantly, about the need for preservation. Effective interpretation leads to appreciation of underwater cultural heritage sites as links to our past, rather than simply as mines of ‘treasure’ to be salvaged for personal gain or sites of interest to be consumed by tourists. This paper describes a selection of interpreted maritime sites from the continental US (with specific reference to Florida), the Caribbean, and the Pacific to show how archaeological tourism, specifically shipwreck preserves and heritage trails, can begin to change mindsets, engage emotions, and inform visitors. It also discusses ways in which we can improve upon assessment, monitoring, and long-term preservation strategies after the trails are created and the sand has settled.     

Maritime and Shipwreck Archaeology in the Western Indian Ocean and Southern Red Sea: An Overview of Past and Current Research

This paper provides an overview of previous archaeological research on shipwrecks and the maritime archaeology of the Western Indian Ocean and southern Red Sea. It highlights the early pioneering research on the Santo António de Tanná, wreck off Mombasa Island, before discussing more recent discoveries, surveys and excavations. Attention is drawn to the important distinction between ??shipwreck?? and ??maritime?? archaeology, and the need to develop integrated programmes aimed at investigating the diversity of the maritime heritage of these two regions. Particular attention is also drawn to the increased activity of treasure hunters and other threats to the underwater heritage of these regions, the need to sustain ongoing training and capacity building in maritime archaeology and for strengthening existing legislation.     

The Norman's Bay Shipwreck,East Sussex,UK: a possible 17th‐century Dutch ship from the Battle of Beachy Head

This report explores a hypothesis that the Norman's Bay shipwreck is the Wapen van Utrecht, a 64‐gun Dutch ship lost during the Battle of Beachy Head in 1690. The shipwreck, found off the Sussex coast, was designated by the Protection of Wrecks Act (1973) in 2006, when it was speculated that the wreck was the English 70‐gun ship Resolution, lost in the Great Storm of 1703. Dendrochronology dates the vessel after the middle of the 17th century AD, however, with timbers from Germany or the Low Countries. Initiatives by the Nautical Archaeology Society to bring the protected wreck to a wide public are also discussed.     

Strategies for Protection of Wooden Underwater Cultural Heritage in the Baltic Sea Against Marine Borers. The EU Project ‘WreckProtect’

Abstract

Marine borers constitute a great danger to historical shipwreck in marine environments as they are able to decompose wood material in just a few years. Recently, there have been indications that the marine borer Teredo navalis is spreading into the brackish Baltic sea, where thousands of invaluable historical wrecks for centuries have had unique preservation conditions. The WreckProtect project was a coordination and support action funded by the European Commission within the 7th Framework Program. The main objective of the project was to develop tools for predicting the spread of marine borers into the Baltic and to evaluate methods for in situ protection of the historical wreck and submerged settlements. This paper gives a summary final report of the project and an overview of results.     

Advisory Commissions for Archaeology — Sense or Nonsense? The Case of Belgium

Abstract

Belgium has a long tradition of consultative commissions, responsible for the preservation of heritage. In the 1940s and 1950s, Belgian archaeologists expressed a need for such an institute, specifically competent for archaeology and the supervision of excavations. Only in 1965, the first members of a National Commission for Excavations were appointed. They had modest powers, but were able to advocate the value of archaeological heritage and, to a limited extent, supervise fieldwork performed by amateurs. The Commission was also asked to prepare a legal text that would protect archaeological heritage. However, ratified laws were not accomplished and, despite much regret of Belgian archaeologists, the Commission was abolished in 1979.

During the 1980s, Belgium underwent several state reforms which ultimately resulted in the complete regionalization of archaeology (1988–89). Throughout this period, a shift in opinion occurred between Walloon (French-speaking) and Flemish (Dutch-speaking) archaeologists. This resulted in different arrangements of governmental agencies responsible for immovable heritage and archaeology. Nonetheless, as UNESCO had recommended in 1968, all three Belgian regions (including the Brussels-Capital Region) installed advisory commissions that were involved in the preservation in situ of archaeological remains. However, these consultative bodies had little influence on politics and policy. Especially in Flanders, the Archaeological Council achieved very little. Probably, the lack of continuity retained the Council from building up a reputation and authority. Nevertheless, advisory commissions for archaeology do make sense in Belgium. They provide a necessary ‘forum’ to discuss problems and to express undivided opinions; they form a ‘channel’ to communicate with policy makers; and they present an ‘instrument’ for advocating the preservation of archaeological heritage.     

The 4th‐Century‐BC Mazotos Shipwreck,Cyprus: a preliminary report

Since November 2007 an underwater project has been carried out by the Archaeological Research Unit of the University of Cyprus, in collaboration with the Department of Antiquities, at a shipwreck on the south coast, 14 miles south‐west of Larnaca. Its cargo consists mainly of Chian amphoras and has been provisionally dated to the 3rd quarter of the 4th century BC. The good state of preservation of the site gives an opportunity for studying amphora stowage and the wreck‐formation process. Moreover, it can shed new light on sea‐routes and trade between Cyprus and the Aegean during the late Classical period. © 2010 The Author     

A Colonial Shipwreck in Saipan,Northern Mariana Islands

Previous underwater cultural heritage investigations conducted in the western Pacific's Northern Mariana Islands largely focused on the submerged World War Two remains, despite the islands’ rich colonial history. The island chain was the setting of numerous historical occupations including indigenous Chamorro populations, Spain, Germany, Japan and the United States, all of which created a lasting maritime heritage legacy on land and under water. This paper presents the first colonial shipwreck investigation to be undertaken by archaeologists and fills a gap in our history and knowledge of the Mariana Islands’ pre‐World War Two era.     

Samuel Pepys’s Navy Preserved In Situ?

Abstract

This paper will focus on the wreck of the Stirling Castle, which was one of four ships of the line to perish on the Goodwin Sands during the Great Storm of 27 November 1703. The Goodwin Sands lies off the south-east coast of Kent between Dover and Ramsgate. These sands are famously known as the ‘Ship Swallower’. This paper will discuss what has been learnt from the site’s investigations, the heritage management issues of preservation in situ, and offer a strategy for the future management of the site.     

Reburial and Analyses of Archaeological Remains in the Marine Environment — Investigations into the Effects on Metals

Abstract

The treatment and long-term storage of recovered cultural material from underwater heritage sites is becoming less cost effective, and reburial of archaeological sites and the associated artefacts in the marine environment is becoming increasingly common practice in managing the submerged cultural resource. Following recent large-scale underwater archaeological excavations in Marstrand harbour, Sweden, the majority of recovered finds were reburied in defined trenches in the harbour sediment. Subsequently, the Studio of the Western Sweden Conservators in conjunction with the Bohus County Museum initiated a fifty-year research project to evaluate reburial as an appropriate method of preserving waterlogged archaeological artefacts in the long term. The research project, entitled ‘Reburial and Analyses of Archaeological Remains’, was launched in 2002 and consists of six sub-projects. The main aims of these sub-projects are to analyse the extent of deterioration of the most common material types found on underwater archaeological sites, assess the stability of packing and marking materials used in archaeological documentation, and monitor the reburial environment.

The aim of the metals sub-project is to investigate the short- to long-term corrosion behaviour of metals buried in the marine environment by examining the deterioration of reburied and exposed modern metal coupons and eventually compare these results to the analysis of actual shipwreck artefacts. The environmental monitoring sub-project is designed to complement the other sub-projects by assessing the physico-chemical changes occurring in the reburial environment over time and the effect on the deterioration of the different reburied material types. In comparing the results obtained over the past seven years from both the metals and monitoring sub-projects, it should be possible to more accurately evaluate the effectiveness of reburial as a long-term in situ preservation strategy for metallic archaeological remains.     

Florida’s Underwater Archaeological Preserves: Public Participation as an Approach to Submerged Heritage Management

Abstract

Florida waters are home to the remains of such diverse watercraft as galleons, freighters, sailing yachts, steamboats, and prehistoric canoes. Managing these resources, especially regarding questions of access versus preservation, can be a daunting task. Florida’s Underwater Archaeological Preserves programme is an experiment in public participation to further both the awareness and the preservation of submerged heritage through site conservation and interpretation, incorporating various stakeholders during each step in the process. The logic in Florida’s Preserves programme is that an involved public given free access to a shipwreck site can be an ingredient for, instead of a hindrance to, preservation. Although one of several programmes worldwide, the concept that sets Florida’s Underwater Archaeological Preserves programme apart is its use of public involvement to promote education that fosters attitudes of conservation and preservation. If the public feels a share as stakeholders in the preservation of their maritime heritage, then submerged cultural resources will be more effectively protected.     

Education in Maritime Archaeology: The Egyptian Case Study

The investigation of archaeological sites of maritime nature started in Egypt more than a century ago, with the discovery of the Dahshur boats (Haldane 1998) and the ancient harbour of Pharos (Jondet 1912); however, education in maritime and underwater archaeology in Egypt is still in its infancy. This paper will look at the development of maritime archaeology in Egypt as a scientific discipline and the progress achieved to date in providing Egyptian archaeologists with education and training in aspects of maritime archaeology and underwater cultural heritage.     

Talking about others: archaeologists,indigenous peoples and heritage in Argentina

Abstract

In the process of creating the Argentinean nation, the indigenous peoples were dispossessed of their lands and their sacred sites. The indigenous past was therefore neglected in a nation that was thought to be formed by European immigrants. As a result, pre-Hispanic heritage was considered part of the public domain of the State and a subject of scientific enquiry. In the last few decades, legal and political changes have encouraged indigenous peoples' claims on heritage issues. The aim of this paper is to analyse a number of contested heritage issues in which indigenous communities were involved, as well as a few examples in which archaeologists, authorities and indigenous groups have succeeded in building a dialogue regarding the care of specific archaeological sites. These issues are further discussed in the context of the current socio-political and economic crisis in Argentina.     

Scuttled in the Morning: the discoveries and surveys of HMS Warrior and HMS Sparrowhawk,the Battle of Jutland's last missing shipwrecks

Due to the circumstances of the loss of HMS Warrior and HMS Sparrowhawk in 1916, in which subsequent to disablement both had drifted and been towed unknown distances from the Jutland battlefield, they were not located in the 2015 Jutland survey. In August 2016 both ships were located and HMS Warrior was revealed to be a pristine warship wreck, the only example in this condition of the 25 ships sunk in the battle. HMS Sparrowhawk had a similar pattern of disturbance as seven of the other Battle of Jutland destroyer wrecks. The survey of these wrecks draws to a conclusion a long period of discovery at Jutland and raises questions as to how these important cultural artefacts should be treated in the future.