Fieldwork Methodology in South American Maritime Archaeology: A Critical Review

In archaeology, data obtained from the analysis of material evidence (i.e., the archaeological record) from extensive excavations have been a significant means for the ultimate development of interpretations about human life in the past. Therefore, the methodological procedures and tools employed during fieldwork are of crucial importance due to their effect on the information likely to be recovered. In the case of maritime archaeology, the development of rigorous methods and techniques allowed for reaching outcomes as solid as those from the work performed on land. These improvements constituted one of the principal supports—if not, the most important pillar—for its acceptance as a scientific field of study. Over time, the growing diversity of sites under study (e.g., shipwrecks, ports, dockyards, and prehistoric settlements) and the underwater environments encountered made it clear that there was a need for the application of specific methodological criteria, in accordance with the particularities of the sites and of each study (e.g., the research aims and the available resources). This article presents some ideas concerning the methodologies used in South American investigations that have exhibited a strong emphasis on the analysis of historical shipwrecks (the sixteenth to twentieth centuries). Based on a state-of-the-knowledge review of these research projects, in particular where excavations were conducted, the article focuses on the details of the main strategies adopted and results achieved. The ideas proposed in this article can be useful as a starting point for future activities of surveying, recording, and excavating shipwrecks.     

Control of Indigenous Archaeological Heritage in Ontario,Canada

Few Indigenous peoples have control over their heritage, despite international recognition of this right in the United Nations Declaration on the Rights of Indigenous Peoples, adopted by the UN General Assembly in 2007. In Ontario, Canada, the Ontario Heritage Act, R.S.O. 1990 regulates archaeology and grants licences to archaeologists to investigate archaeological heritage. Indigenous people want more control of their archaeological heritage in Ontario. To uphold Indigenous rights to archaeological heritage in Ontario, heritage legislation and policy needs to be revised and site protection increased. This paper recommends that Indigenous archaeological heritage in Ontario would be best protected by strengthening Ontario government land development policy and legislation to require the free, prior, and informed consent from affected Indigenous communities before removal of significant archaeological sites and remains from their ancestral territories.     

Assessing Umm el-Jimal’s Potential for Heritage Tourism

The quality of Jordan’s archaeological heritage resource for tourism is widely acknowledged, but heritage authorities have hardly begun to explore and develop their tourism potential. Nonetheless, the tourism industry in Jordan is a leading activity for the economy countrywide. Jordan’s tourism and heritage management have undergone quiet and basic improvement in recent years. This paper seeks to assess the heritage tourism potential of the archaeological site of Umm el-Jimal. It addresses the question of what potentials and values the site possesses, and what obstacles heritage and tourism management need to tackle to enable its development. To achieve this, current heritage practice in the management of the archaeological site of Umm el-Jimal is investigated. The methodology employed by the researchers comprised an assortment of research techniques including meetings, consultations, interviews, surveys, observation, alongside a literature review on various related topics and heritage management studies. The analysis of the study revealed that Umm el-Jimal has substantial heritage tourism potential and diversified values that have not yet been utilized due to the presence of a variety of hindering factors. Primarily, these are lack of tourist facilities, a backlog of heritage conservation and insufficient methods of interpretation and presentation. Combined, these factors hold back heritage tourism development of the site. Finally, it is recommended that the collaboration between the different interested parties at both public and private levels with the diverse stakeholders such as local people, private sector is imperative to make use of the heritage tourism potential of the site and alleviate the obstacles to successful development.     

Historical materials from the post-Cistercian abbey in Kamieniec Ząbkowicki (southwestern Poland)—application of mineralogical methods for identification of source of raw materials

In this paper, we use a set of methods applied for geosciences to reveal the provenance of raw materials and historical aspects of technology of lime production from the post-Cistercian church (southwestern Poland). Two types of building stones (mica schists and sandstones) and two groups of mortars, related with two different construction phases (Gothic and Baroque), were used for construction of the church façade. Principal difference between binding materials involves the presence of Mg-rich phase within Baroque mortars as a result of carbonation of a dolomitic lime whereas Gothic mortars are devoid of hydromagnesite. Mineral composition of the fillers of both mortars is similar, suggesting the same origin represented by local eluvium. Binders of studied mortars are composed of calcite and/or hydromagnesite and rich in lime lumps suggesting incomplete calcination. Studied mortars are weathered which is manifested by presence of gypsum. However, there is no evidence of commonly occurring Mg-rich secondary phases within Baroque mortar probably due to higher solubility of these salts comparing to gypsum. Mineralogical study combined with archeological and geological information enables us to indicate potential sources for the studied building materials. Metamorphic rocks, prevailing within the façade, come from abandoned quarries located in the closest vicinity of the church, whereas sandstones were acquired from the deposits located at a distance of tens of kilometers from the Kamieniec Z?bkowicki. Raw materials used for lime burning were gathered from Przeworno (Gothic mortars) and Z?oty Stok area (Baroque mortars) located approximately 25–30 and 12 km from studied church.     

The ancient pozzolanic mortars and concretes of <Emphasis Type="Italic">Heliocaminus</Emphasis> baths in Hadrian’s Villa (Tivoli,Italy)

The aim of this work is the physical and mineralogical-petrographic characterization of the mortars from the Baths with Heliocaminus, a special and unique architectural building in the complex of the Hadrian’s Villa in Tivoli. Thirty samples were investigated for composition and physical properties (density, porosity, water absorption, mechanical strength, particle size distribution of aggregate, etc.), representative of eight mortar groups: cubilia bedding mortar, brick bedding mortars, floor-coating and wall-coating bedding mortars, floor (rudus) and wall conglomerates (trullisatio), vault concretes, and lime plasters (arriccio). Physical parameters, together with the microscopic analysis and binder/aggregate ratio determined in three ways using image analysis (on thin sections and on specimens) and weight-data from dissolution of binder, have shown an interesting relationship between the physical-compositional characteristics and the function of mortars within the structure of the Heliocaminus baths. To identify the minerals and the reactant phases between binder and aggregate, as well as the hydraulic degree, selected samples were analyzed with x-ray powder diffraction, thermogravimetry, and differential scanning calorimetry techniques. The obtained results provide a close relation between pozzolanic characteristics and physical-mechanical properties of the mortars (i.e., punching strength index).     

SEM and electrochemical characterization of bronze artifacts from the Francavilla archaeological site

The excavations in the necropolis of the Francavilla Marittima archaeological area, in Calabria, have brought to light the rich burial artifacts and materials, dated between the end of the ninth and sixth centuries BCE. SEM/EDS analysis was conducted on some sections taken from a bronze artifact classifiable as an armilla or fibula fragment. Our aim was to elucidate the nature of the corrosion processes acting on the specimen. SEM investigation detected the segregation of tin towards the outer layer and a depletion of the copper content in the same region. Furthermore, the elemental distribution maps of the sections analyzed evidenced the presence of chloride ions in the border area between the corrosion patina and the metal alloy. Such anion migration of chloride ions into the interior of the alloy leads to a particular variant of the type of corrosion of structure that in the literature has been identified as structure I.A cavity electrode designed for electrochemical measurements of powders was used to perform cyclic voltammetry experiments devoted to explore the activity of the patina covering the surface of the bronze fragment. The surface layer consists mainly of tin and tin oxides; the layer immediately beneath it contains copper oxides. An increase of reactivity was shown in an acidic environment. The activity of the patina is greatly reduced at pH 5 and appears to be zero at neutral pH.     

The use of white marbles for sculpture in Roman Gortyn (Crete) as revealed by archaeometric analyses

Gortyn was an important Cretan town from the late Archaic to the Hellenistic period and then became one of the provincial capitals of the Roman Empire. It controlled the whole of Crete and Cyrenaica and was a flourishing centre of trade and agricultural products in the first centuries of our era. In more than 100 years, many portions of the Greek and Roman town were unearthed under the supervision of the Italian Archaeological School of Athens and a considerable number of stone artefacts found, many of them made of imported marble since the local variety was grey and of poor quality. Statuary and other prestigious marble sculpted artefacts found in Gortyn were sampled and subjected to archaeometric examination (by way of optical microscopy in thin section, powder X-Ray diffraction and mass spectometry for the determination of the C and O isotopic ratio) in order to identify the quarries they came from. The results obtained from the analysis of several dozen white marble objects have indicated the use of a quite wide variety of species including Parian (from Lakkoi), Pentelic, Thasian (dolomitic and calcitic) and (occasionally) Proconnesian marbles. The first three, especially Pentelic, were used for most of the statuary.     

Together in the field: interdisciplinary work in Kebara and Hayonim caves (Israel)

The authors present an example of close field collaboration among prehistorians and researchers from different disciplines (particularly the geosciences), within the context of a long program of interdisciplinary research at the caves of Kebara and Hayonim (Israel). We outline the benefits brought about by the presence of different specialists being in the field during the excavation over long periods. Specifically, daily collaboration in the field during the excavation brings about: (1) A consensus of choice of strategic areas to excavate, either at the beginning of the project or during successive field campaigns, while taking into account the needs and goals of different specialists and their needs in taking samples; (2) A meeting of different points of view with many discussions of stratigraphy and site formation processes, which in caves are quite complex; (3) A unification of specialized vocabulary and jargon specific to each discipline by constant interaction in the field, which in turn facilitates communication among specialists; (4) A positive didactic element in training doctoral students in the field. This interdisciplinary strategy is more or less widespread now, but it was not the case in the early 1980s, and actual integration of results from the sciences (particularly the geosciences) came about only fairly recently. Without doubt, the awareness of the importance of such interdisciplinary archaeological data for discussing archaeological issues has ultimately paved the way for active interdisciplinary collaboration sprouting from the fieldwork, and has led to the generation of more robust and accurate interpretations.     

Identification of woods dating back to the Neolithic Age released from the YENİKAPI (İSTANBUL) excavations

Many ruins dating back to the Neolithic Age have been unearthed at Yenikap? during the archaeological excavations carried out as part of the Marmaray Metro Project. Wood samples of these ruins were sectioned via freezing sliding microtome. These sections became permanent slides and they were compared with reference to slides, wood identification atlases and books in order to identify their taxa. Only 240 samples could be sectioned from among 430 wood samples. As a result of the identification, the following were determined: Quercus spp., Q. pontica, Juniperus spp., Ficus spp., Juglans spp., Fraxinus spp., Alnus glutinosa, Abies spp., Salix sp., Acer spp., Ulmus spp., Castanea sativa and Taxus baccata.     

The National Insurance Acts 1911-1947, the Approved Societies and the Prudential Assurance Company

The role of the British major life assurance companies in administeringthe National Insurance Acts in the guise of approved societieshas long been controversial. The companies have been accusedof profiteering rather than civic duty or social altruism. Thisarticle, using the Prudential Assurance Company as a case study,questions this argument. Life assurance companies such as thePrudential were fundamental to the operational running of nationalhealth insurance in the first half of the twentieth centurydue to their scale, scope and expertise. In addition, they werekeen to extend the scope of national health insurance and campaignedto make the acts more comprehensive. Finally, while the companiescertainly did see benefits in administering the acts, thesewere related more to corporate identity, branding and publicrelations than to direct pecuniary gain. An analysis of theinclusion of the life insurance companies in the administrationof the National Health Insurance Acts is thus as important foran understanding of twentieth-century Britain as it is for thedevelopment of modern social welfare.