Sweep widths and the detection of artifacts in archaeological survey

In many parts of the world, one of the principal means for discovering archaeological resources is terrestrial archaeological survey for small scatters of generally unobtrusive artifacts on the surface. Yet archaeologists have expended relatively little research on the factors that affect detection of such artifacts or the impacts they have on the reliability of surveys. We employ mock survey of plowed fields ‘seeded’ with a variety of artifacts in order to evaluate the effectiveness of pedestrian survey (fieldwalking) with respect to search time and transect spacing. Our results confirm theoretical expectations about the diminishing returns on increases of search effort, while also demonstrating variation in ‘sweep widths’ for different artifact types and surveyor speed and the effects of walking toward or away from the sun. Preliminary results have implications for the most efficient spacing of survey transects as well as the evaluation of completed surveys, since some artifact types have extremely low probabilities of detection even at high densities of search effort.     

Landscape Archaeology and the Medieval Countryside: Settlement and Abandonment in the Nemea Region

This paper examines the processes of settlement and abandonment of the medieval countryside as revealed by archaeological surveys undertaken in southern Greece. The Nemea region, the focus of an intensive archaeological survey, serves as a case study. Early archaeological surveys approached this time period primarily from a historical point of view. Political history provided the textual frame while the archaeological data were expected to “fill in” the gaps of the historical record. In contrast, in the last twenty-five years the second generation of surveys has taken an active interest in the archaeological documentation of the medieval countryside. The settlement trends observed in Nemea are viewed as manifestations of a variety of political, social, and economic processes.     

Roman and Byzantine Settlements in the Region of West Irbid

Abstract

It was always clear that for practical reasons any new region-based study of the Roman and Byzantine periods in north-western Jordan would have to rely on existing evidence from archaeological surveys and excavations. The concentration of previous archaeological survey work in parts of the region of West Irbid in Jordan, and especially the surveys made by N. Glueck in the 1940s and S. Mittmann in the 1960s, made this area especially attractive for archaeologists. In this paper, the aim was to analyze the results of the West Irbid survey, particularly of the Roman and Byzantine periods, made during September 2005. The information gathered was of great help, enabling the classifi cation of sites into groups according to the nature of occupation, and analyzing the discovered architectural remains to provide a broader context for interpretation of the nature of Roman and Byzantine settlements in the surveyed region.     

The Integration of VHR Satellite Imagery,GPR Survey and Boring for Archaeological Prospection at the Longcheng Site in Anhui Province,China

This paper is focused on the joint use of non‐invasive and minimal intervention techniques for supporting archaeological prospection. Very high resolution (VHR) satellite imagery analysis and ground‐penetrating radar (GPR) and boring surveys were integrated for the study of the Longcheng site, located near Hefei city in Anhui Province, China, to test their effectiveness and efficiency in prospecting archaeological remains and evaluating their degree of preservation. First, target locations of potential archaeological structures were identified on a WorldView‐2 (WV‐2) satellite image through spatial and radiometric enhancement, interpretation and object‐oriented classification. Second, archaeological features extracted from the WV‐2 imagery were further investigated by a GPR survey that provided detailed cross‐checking information about buried remains. Finally, a subsequent boring survey was conducted across those prospective archaeological structures in order to map the stratigraphic sequences on the basis of colour, compactness and the inclusions contained in the soil, and then to test their correspondence with the GPR data. The boring led to detailed confirmation of the results produced by the remote sensing analyses and GPR surveys, as well as the discovery of datable artefacts. On the basis of all the integrated data, the preliminary layout and structure of the Longcheng site was reconstructed in GIS. Furthermore, the widths, lengths, heights and burial depths of these buried archaeological structures were estimated in detail.     

REVISITING LITHIC SCATTERS: A CRM PERSPECTIVE

Abstract

The scope of an archaeological survey may be defined by environmental or cultural boundaries, or by arbitrarily defined boundaries, which is generally the case in cultural resource management (CRM) surveys. The most common site type encountered during the course of almost any Phase I CRM survey is the temporally nondiagnostic “lithic scatter.” The majority of surveys conducted within the United States today are compliance driven, and thus most lithic scatters are discovered and recorded by CRM firms. They are therefore investigated according to state standards, and their potential for contributing to the archaeological record is evaluated according to criteria established under the National Historic Preservation Act. Under these circumstances, the significance of the vast majority of these sites is dismissed outright during the course of initial investigation and reporting. While nondiagnostic lithic scatters may often be uninteresting as individual units of analysis, this paper argues that in aggregate they represent a vital component of the archaeological record. It further argues that their potential value as individual units of analysis is often dismissed too casually. The paper demonstrates that under currently accepted field methodology, many of these sites are not adequately investigated and are not entered into any meaningful database. Recommendations for improving the initial investigation and interpretation of these sites are offered, based on recent initiatives taken in Louisiana by the U.S. Forest Service on Kisatchie National Forest.     

Archaeological Survey and the Study of Mesopotamian Urban Systems

Abstract

The current understanding of Mesopotamian urban systems has been substantially enhanced by a series of wide-ranging archaeological surveys during the past three decades. The study of Mesopotamian society, as with most historical civilizations, offers special challenges to the survey archaeologist. A long tradition of philological inquiry has contributed to the current state of knowledge and must not be overlooked in future work.

For Mesopotamia, probably the greatest achievements in survey archaeology are the works of Robert McC. Adams. They serve here as the reference point for a discussion of the current state of surveying in Mesopotamia. The first part of this article addresses several general issues confronting the survey archaeologist. Questions of the scale of the research project, the intensity of covering the landscape, and the adequate identification of the materials that are discovered all must be carefully evaluated in planning a survey. In the second half of the article three general recommendations are made that I believe must be incorporated into the next “generation” of archaeological surveys.     

Determination of the influence of soil parameters and sample density on ground-penetrating radar: a case study of a Roman picket in Lower Bavaria

Ground-penetrating radar (GPR) surveys are very much influenced by the site-specific physical properties, soil parameters and the sample density of the radar pulses. According to the electromagnetic theory, the transmission and reflection of electromagnetic waves is dominated by the conductivity, dielectric permittivity and the soil moisture. Therefore, it is advisable to measure these parameters in advance of a GPR survey. Commonly, this is not possible directly with the standard common-offset GPR arrays. To overcome this problem, we adapted and applied a direct method called time-domain reflectometry to a selected case study of the Roman picket Hienheim at the Raetischer Limes in Lower Bavaria. Furthermore, we present some important results relating to the profile spacing and orientation of GPR surveys and the site-specific soil parameters. The location and the identification of the archaeological features were successful by all geophysical methods. However, the application of all these geophysical methods like magnetometry, resistivity and GPR in addition with aerial photography and Airborne Laserscanning exemplifies the advantages of an integrated survey to achieve a comprehensive result of an archaeological site. The Roman picket of Hienheim shows up differently in all results, as each one traces the archaeological remains according to a specific physical parameter. Resistivity and radar are best to resolve buried stone structures like the walls of the picket or stone-filled ditches. In contrary, magnetometry benefits of the magnetic contrast between the limestone walls and the surrounding soil.     

Applications of integrated geophysical method in archaeological surveys of the ancient Shu ruins

The Jinsha site is one set of excavated ruins of the ancient Shu state, late Neolithic, early Bronze Age. The archaeological survey of the site is especially important for study of Shu culture, because there is hardly any written record of this period. As technology progresses, more and more advanced techniques and equipment have been used to conduct archaeological surveys. In this study, four nondestructive methods of geophysical detection were used to locate ancient relics at the site. The validity of these different types of archaeological detection methods (method of high-density resistivity, induced polarization, multi-frequency electromagnetic, ground-penetrating radar and so on) and techniques were analyzed. And a multi-scale, multi-method detection system to non-destructive detection of cultural relics was established.     

Project SAMPHIRE: Crowd Sourcing Maritime Archaeology data off Scotland's West Coast

Perhaps the greatest barrier to effective management of underwater cultural heritage is the lack of data on the nature and location of offshore archaeological resources. This is a problem shared with terrestrial archaeology, but is particularly acute due to the limitations of survey techniques in the underwater environment. In Scotland <15% of known ship losses from the last 200 years have been located and the record is far less comprehensive for earlier periods, verging on a near total data gap. Most known archaeological sites in Scottish waters have been discovered through large-scale sonar survey of relatively low resolution and a considerable bias has been introduced in the archaeological record; this has favored the discovery and documentation of larger and more recent, often upstanding, metal shipwrecks. This article presents the methods and results from a three-year project designed to reduce this bias by demonstrating large-scale prospecting for maritime archaeology through a community-based crowd-sourcing approach. Project SAMPHIRE (the Scottish Atlantic Maritime Past: Heritage, Investigation, Research and Education Project) was geographically focused on the west coast of the Scottish mainland and was undertaken between 2013 and 2015, resulting in a large number of new archaeological discoveries, including shipwrecks, aircraft, and other material of a much more varied nature than what is typically found through large-scale hydrographic surveys.     

Archaeological prospecting: A progress report

This article has two main aims: to show how the quality of resistivity surveys may be improved by the use of new probe configurations and consideration of seasonal effects on detectability of features; and secondly to describe the value of the new fluxgate gradiometers for rapid detailed magnetic surveys and for scanning substantial tracts of country for archaeological remains. Methods of survey presentation are also briefly described.     

Settlement history in the eastern Rub al-Khali: Preliminary Report of the Dubai Desert Survey (2006–2007)

Regional archaeological survey in desert areas of Dubai, U.A.E., has identified numerous archaeological sites in this rapidly changing landscape. Subsurface geophysical surveys have been undertaken in concert with surface collection and test excavation to document the extent and chronology of each site. Contrary to expectations that deserts were permanently abandoned following the end of the mid-Holocene pluvial phase around 4000 BC, two sites, Al-Ashoosh and Saruq al-Hadid, show evidence of substantial occupation during the late third and early first millennia respectively. These findings suggest that the Rub al-Khali supported human settlement much later than is generally thought, challenging traditional understandings of the region's cultural and environmental histories.     

A Regional Approach to Ancient Urban Studies in Greece Through Multi-Settlement Geophysical Survey

The systematic exploration of large archaeological sites in the Mediterranean has evolved considerably since the “big dig” excavations. Pedestrian field surveying and remote sensing applications, including satellite and airborne image analysis, are now practical and relatively cost-efficient methods of characterizing large and diachronically diverse landscapes on regional scales. However, the use of geophysical techniques as a means for exploring manifold archaeological contexts is still in its infancy. In this paper, we highlight the advantages of archaeological geophysics to conduct regional surveys in the Mediterranean. Through a multi-site geophysical fieldwork campaign to investigate the patterns and dynamics of ancient cities in Greece, we show how geophysics offer new opportunities for characterizing the spatial attributes and regional dynamics of urban landscapes, and, in doing so, we make an argument for its wider adoption on regional survey projects.     

Archaeological magnetometry in an Arctic setting: a case study from Maguse Lake,Nunavut

Magnetometry has been little used on Arctic archaeological sites, but has great potential to help us understand site structure by identifying buried features and providing additional detail about the construction and use of visible surface features. In the Arctic environment, magnetometer surveys have to deal with the effects of permafrost activity on soils and the potential influence of glacial erratics of varying geological composition. Here, we present the results of magnetometer surveys of a non-cultural site with periglacial features and two archaeological sites located in the Canadian low Arctic. Despite considerable “noise” apparently caused by igneous erratics, the surveys successfully identified several frost features and a range of archaeological feature types. They also appear to have located buried archaeological features and identified activity areas within some dwellings. These preliminary results suggest that the technique is worth pursuing on northern sites.     

Evaluation of very high to medium resolution multispectral satellite imagery for geoarchaeology in arid regions – Case study from Jabali,Yemen

Archaeological research of the ancient Jabali silver mines (7th to 14th centuries ad) in northern Yemen is a multidisciplinary project covering scientific disciplines traditionally related to archaeology, a geological approach and new technologies such as very high resolution remote sensing. Mining companies envisage the development of the Jabali deposit for zinc ore. Some of the planned facilities, particularly a large open pit, will have a destructive impact on the old pits and processing heaps, already damaged by recent works. In the present study, remote sensing is used for a detailed survey of the impact of preliminary mining works from the early 1980’s with the aim to establish archaeological remains and to prioritize areas for future ground surveys, as well as for geological mapping. Results indicate that mapping using remote sensing in the visible to short wave infrared range has a great potential for the identification of gossans (iron caps) possibly related to archaeological remains. The phases of work in Jabali are clearly put into light by the study of a time series of Landsat data. Very high resolution QuickBird imagery appears particularly relevant for mapping most of the archaeological remnants, iron caps, as well as the 3D visualization of the mining site when drapped over a detailed digital elevation model.     

Ahvola 1918: Archaeological Reconnaissance of a Finnish Civil War Battlefield

Abstract

The Finnish Civil War (1918) has received very little attention from the archaeologists until recently. This paper describes the first archaeological investigation of a Civil War battlefield in the Karelian Isthmus, nowadays northwest Russia. The battlefield of Ahvola, which saw one of the decisive battles of the war, was surveyed briefly in November 2007. With relatively little subsequent landuse, the general landscape has remained roughly similar to that of the early twentieth century, and the remains of field fortifications have been preserved unexpectedly well. Thus the fields of Ahvola hold high potential for more widespread archaeological studies in future. The present survey, along with two earlier surveys of Finnish Civil War battlefields, provides important base data for future research on the subject.     

Magnetic imaging and electrical resistivity tomography studies in a Roman military installation found in Satala archaeological site,northeastern Anatolia,Turkey

Satala is one of the last great military centers in the Roman East available for archaeological and historical investigations. This archaeological site is situated on the crossing of two singularly important routes in North-East Asia Minor. Only little archaeological fieldwork in and around Satala has so far been carried out, thus delimiting our knowledge of the site and its role within the Roman military structure of the East. In order to provide further data on the site, we carried out geophysical surveys including the application of magnetic and electrical resistivity techniques in an area north of the Sadak village. The geophysical surveys within this area (supposedly part of the Roman military camp) proceeded in two stages. The first stage saw magnetic gradiometer imaging studies being carried out on 2.1 ha, measured by a Geoscan FM-36 fluxgate gradiometer by using 0.5 × 1 m grid intervals. For the second stage a different geophysical technique was used—resistivity tomography. Resistivity data were collected using a number of combined 2D resistivity pseudosections in the eastern part of the area which contained very regular magnetic anomalies. The 3D data were obtained by the combination of all survey lines collected from 2D data sets, and thereafter the arranged data were processed by using the 3D robust inversion modified from the smoothness-constrained algorithm. Electrical resistivity tomography investigations revealed that the buried archaeological structures might be located near the surface, except for some structures found in the middle of the studied area. The archaeological structures were furthermore determined by realistic model sections and volumetric representations. Magnetic imaging and electrical resistivity tomography surveys show that the combined usage of these techniques advances the understanding of archaeological structures beneath the surface.     

Applied geomorphology and archaeological survey strategy for sites of Pleistocene age: An example from Central Alaska

The development of a survey strategy for archaeological sites of Pleistocene age through the application of historical geomorphology is described. Geomorphic contexts in the northern foothills of the Alaska Range with potential for producing archaeological remains from the 30,000-12,000 bp interval were identified and subjected to exploratory testing. Contexts were selected on the basis of estimated age, palaeotopographic setting and geomorphic history, and included glaciofluvial outwash, side-valley fan alluvium, loessic colluvium and primary frozen loess. Testing was eventually focused on formerly deflated terrace surfaces—a potential source area for artifacts redeposited in the outwash or alluvium. Although the results of the exploratory testing were negative, and archaeological sites in the region remain confined to loess deposits of the later Late Glacial (12,000-10,000 bp), discoveries in other parts of Beringia suggest that sites of earlier Late Glacial age (14,000-12,000 bp) are also likely to be present in the foothills. The application of historical geomorphology in surveys for early prehistoric sites is essential for effective use of available resources and for maximizing the significance of the results (positive or negative).     

宁夏灵武市磁窑堡、回民巷古瓷窑遗址考察纪要

本文在对宁夏灵武市磁窑堡、回民巷古窑址进行实地考察并采集部分标本的基础上,结合已有的研究成果,对这两处古窑址的烧造品种、文化内涵及工艺渊源等进行了论述。这两处窑址是目前已发现的最重要的西夏瓷窑遗址,对其进行调查和发掘,为在宁夏、内蒙、青海等地西夏遗址出土陶瓷的断代和窑口的判别提供了珍贵的实物资料,对西夏史的研究也具有重要意义,同时也填补了故宫博物院在古陶瓷窑址调查方面的一项空白。     

Putting the Spotlight on Small Metal Age Pottery Scatters in Northern Calabria (Italy)

This paper presents the results of an in-depth multidisciplinary restudy of small Metal Age surface scatters recorded in earlier fieldwalking surveys in northern Calabria (Italy). Guided by a stratified sampling approach based on site types and topographic positions, high-resolution surface collections at the selected sites were combined with geophysical surveys, test pits, and soil studies to investigate both archaeological deposits and the site formation processes that have an effect on their detectability. This approach is shown to result in a better definition of archaeological ‘sites’, and to help fill in details of regional exploitation and settlement dynamics at the landscape scale. At this broader scale we are also able to model post-depositional processes and slope dynamics affecting the preservation of the archaeological record. With regard to methodology, our study has enabled the evaluation of diverse archaeological detection methods and the fine-tuning of field strategies for the study of Metal Age remains.     

On the Causes of Perforations in Archaeological Domestic Cattle Skulls

We have undertaken a preliminary survey of the occurrence of cranial perforations which have been noted on the posterior portion of archaeological cattle skulls. The interest arose from the authors independent encounter with unusually high frequencies of this condition in assemblages from Bruges and Lincoln and the subsequent search for an explanation. A rapid literature survey and direct contact with other colleagues in the field showed that the phenomenon is widespread in European material and represented throughout a range of time periods and geographical locations. It is also clear that a variety of diverse but untested theories have been proposed by various workers in an attempt to explain the condition. A number of possible aetiological factors are discussed in an attempt to establish the most likely explanations. On the basis of this brief survey, which includes the evaluation of additional archaeological evidence from some of the assemblages, it would appear that parasites, tumours and infection can be ruled out as causal factors. Although not clearly established, it is suggested that a congenital or yoking pressure origin is more likely. If this is the case, then the presence of cranial perforations in domestic cattle may provide important information regarding the temporal and spatial spread of a specific congenital condition or yoking practice. Only a wider survey of both archaeological and modern comparative material (including other bovid species) will enable a full appraisal of the yoking versus congenital hypothesis.