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Academic Emergency Medicine     Hybrid Journal   (Followers: 30, SJR: 1.153, h-index: 72)
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Acta Archaeologica     Hybrid Journal   (Followers: 176, SJR: 0.125, h-index: 5)
Acta Geologica Sinica (English Edition)     Hybrid Journal   (Followers: 3)
Acta Neurologica Scandinavica     Hybrid Journal   (Followers: 6, SJR: 0.733, h-index: 63)
Acta Obstetricia et Gynecologica Scandinavica     Hybrid Journal   (Followers: 18, SJR: 0.767, h-index: 65)
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Addiction     Hybrid Journal   (Followers: 16, SJR: 1.755, h-index: 113)
Addiction Biology     Hybrid Journal   (Followers: 4, SJR: 1.891, h-index: 42)
Adultspan J.     Hybrid Journal   (SJR: 0.147, h-index: 2)
Advanced Energy Materials     Hybrid Journal   (Followers: 13, SJR: 4.77, h-index: 21)
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Africa Confidential     Hybrid Journal   (Followers: 16)
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Africa Research Bulletin: Political, Social and Cultural Series     Hybrid Journal   (Followers: 8)
African Development Review     Hybrid Journal   (Followers: 17, SJR: 0.485, h-index: 11)
African J. of Ecology     Hybrid Journal   (Followers: 13, SJR: 0.416, h-index: 31)
Aggressive Behavior     Hybrid Journal   (Followers: 3, SJR: 0.998, h-index: 49)
Aging Cell     Open Access   (Followers: 6, SJR: 2.643, h-index: 68)
Agribusiness : an Intl. J.     Hybrid Journal   (Followers: 5, SJR: 0.705, h-index: 7)
Agricultural and Forest Entomology     Hybrid Journal   (Followers: 11, SJR: 0.774, h-index: 32)
Agricultural Economics     Hybrid Journal   (Followers: 45, SJR: 0.296, h-index: 9)
AIChE J.     Hybrid Journal   (Followers: 17, SJR: 0.889, h-index: 94)
Alcoholism and Drug Abuse Weekly     Hybrid Journal   (Followers: 8)
Alcoholism Clinical and Experimental Research     Hybrid Journal   (Followers: 7, SJR: 1.353, h-index: 101)
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Alternatives to the High Cost of Litigation     Hybrid Journal   (Followers: 2)
American Anthropologist     Hybrid Journal   (Followers: 220, SJR: 1.193, h-index: 38)
American Business Law J.     Hybrid Journal   (Followers: 20, SJR: 0.242, h-index: 11)
American Ethnologist     Hybrid Journal   (Followers: 176, SJR: 1.814, h-index: 30)
American Heart Hospital J.     Hybrid Journal   (Followers: 1, SJR: 0.166, h-index: 11)
American J. of Economics and Sociology     Hybrid Journal   (Followers: 19, SJR: 0.31, h-index: 17)
American J. of Hematology     Hybrid Journal   (Followers: 15, SJR: 1.101, h-index: 62)
American J. of Human Biology     Hybrid Journal   (Followers: 8, SJR: 0.876, h-index: 45)
American J. of Industrial Medicine     Hybrid Journal   (Followers: 8, SJR: 0.849, h-index: 70)
American J. of Medical Genetics Part A     Hybrid Journal   (Followers: 10, SJR: 1.026, h-index: 42)
American J. of Medical Genetics Part B: Neuropsychiatric Genetics     Hybrid Journal   (Followers: 2, SJR: 1.406, h-index: 90)
American J. of Medical Genetics Part C: Seminars in Medical Genetics     Partially Free   (Followers: 3, SJR: 1.597, h-index: 65)
American J. of Orthopsychiatry     Hybrid Journal   (Followers: 4, SJR: 0.866, h-index: 52)
American J. of Physical Anthropology     Hybrid Journal   (Followers: 17, SJR: 1.221, h-index: 67)
American J. of Political Science     Hybrid Journal   (Followers: 210, SJR: 5.975, h-index: 76)
American J. of Primatology     Hybrid Journal   (Followers: 5, SJR: 0.956, h-index: 48)
American J. of Reproductive Immunology     Hybrid Journal   (Followers: 2, SJR: 1.06, h-index: 63)
American J. of Transplantation     Hybrid Journal   (Followers: 10, SJR: 2.575, h-index: 108)
American J. on Addictions     Hybrid Journal   (Followers: 7, SJR: 0.723, h-index: 44)
Anaesthesia     Hybrid Journal   (Followers: 55, SJR: 1.242, h-index: 73)
Analyses of Social Issues and Public Policy     Hybrid Journal   (Followers: 4, SJR: 0.765, h-index: 13)
Analytic Philosophy     Hybrid Journal   (Followers: 7)
Anatomia, Histologia, Embryologia: J. of Veterinary Medicine Series C     Hybrid Journal   (Followers: 2, SJR: 0.307, h-index: 22)
Anatomical Sciences Education     Hybrid Journal   (Followers: 1, SJR: 0.519, h-index: 16)
Andrologia     Hybrid Journal   (Followers: 3, SJR: 0.448, h-index: 35)
Andrology     Hybrid Journal   (Followers: 1)
Angewandte Chemie     Hybrid Journal   (Followers: 15)
Angewandte Chemie Intl. Edition     Hybrid Journal   (Followers: 191, SJR: 5.36, h-index: 305)
Animal Conservation     Hybrid Journal   (Followers: 17, SJR: 1.359, h-index: 47)
Animal Genetics     Hybrid Journal   (Followers: 7, SJR: 0.881, h-index: 55)
Animal Science J.     Hybrid Journal   (Followers: 2, SJR: 0.437, h-index: 17)
Annalen der Physik     Hybrid Journal   (Followers: 2, SJR: 0.695, h-index: 32)
Annals of Anthropological Practice     Partially Free   (Followers: 1, SJR: 0.116, h-index: 1)
Annals of Applied Biology     Hybrid Journal   (Followers: 8, SJR: 0.834, h-index: 41)
Annals of Clinical and Translational Neurology     Open Access   (Followers: 2)
Annals of Human Genetics     Hybrid Journal   (Followers: 7, SJR: 0.84, h-index: 61)
Annals of Neurology     Hybrid Journal   (Followers: 16, SJR: 4.417, h-index: 199)
Annals of Noninvasive Electrocardiology     Hybrid Journal   (Followers: 1, SJR: 0.361, h-index: 28)
Annals of Public and Cooperative Economics     Hybrid Journal   (Followers: 1, SJR: 0.393, h-index: 14)
Annals of the New York Academy of Sciences     Hybrid Journal   (Followers: 6, SJR: 1.336, h-index: 143)
Annual Bulletin of Historical Literature     Hybrid Journal   (Followers: 7)
Annual Review of Information Science and Technology     Hybrid Journal   (Followers: 9)
Anthropology & Education Quarterly     Hybrid Journal   (Followers: 11, SJR: 0.323, h-index: 22)
Anthropology & Humanism     Hybrid Journal   (Followers: 13)
Anthropology News     Hybrid Journal   (Followers: 11)
Anthropology of Consciousness     Hybrid Journal   (Followers: 6, SJR: 0.15, h-index: 3)
Anthropology of Work Review     Hybrid Journal   (Followers: 6, SJR: 0.165, h-index: 2)
Anthropology Today     Hybrid Journal   (Followers: 173, SJR: 0.368, h-index: 7)
Antipode     Hybrid Journal   (Followers: 22, SJR: 2.1, h-index: 48)
Anz J. of Surgery     Hybrid Journal   (Followers: 1, SJR: 0.416, h-index: 46)
Anzeiger für Schädlingskunde     Hybrid Journal   (Followers: 1)
Apmis     Hybrid Journal   (Followers: 1, SJR: 0.745, h-index: 59)
Applied Cognitive Psychology     Hybrid Journal   (Followers: 30, SJR: 0.841, h-index: 48)
Applied Numerical Analysis & Computational Mathematics     Hybrid Journal   (Followers: 5)
Applied Organometallic Chemistry     Hybrid Journal   (Followers: 4, SJR: 0.628, h-index: 49)
Applied Psychology     Hybrid Journal   (Followers: 186, SJR: 1.108, h-index: 44)

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Journal Cover Archaeological Prospection
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   Hybrid Journal Hybrid journal (It can contain Open Access articles)
     ISSN (Print) 1075-2196 - ISSN (Online) 1099-0763
     Published by John Wiley and Sons Homepage  [1603 journals]   [SJR: 0.873]   [H-I: 12]
  • Assessing the Condition of the Rock Mass over the Tunnel of Eupalinus in
           Samos (Greece) using both Conventional Geophysical Methods and Surface to
           Tunnel Electrical Resistivity Tomography
    • Authors: Gregory N. Tsokas; Panagiotis I. Tsourlos, Jung‐Ho Kim, Constantinos B. Papazachos, George Vargemezis, Petros Bogiatzis
      Pages: n/a - n/a
      Abstract: The surviving Tunnel of Eupalinus comprises one of the greatest engineering achievements of ancient Greeks. The tunnel itself (1036 m long) was carved in the sixth century bc through solid rock by digging from both ends and advancing to the central meeting position. The method for achieving the meeting of the two simultaneously advancing branches is still unclear. The ancient lining shows damage, indicating instability of the rock mass, presumably due to tectonic action. At certain points, the damage becomes more severe and partial collapses are observed. Therefore, the monument is threatened and measures have to be undertaken to restore its stability and secure the safety of future visitors. The geophysical investigations reported here comprise part of a geotechnical study. The aim of the geophysical survey was to image the subsurface from the ground surface to the ceiling of the tunnel and, if possible, thereby provide information on the quality of the rock mass. A variety of well‐established methods (VLF, self‐potential, seismic refraction and electrical resistivity tomography) were used for this purpose, and also the relatively novel measuring approach of laying out electrodes in a ‘tunnel to surface’ mode. The latter method was an attempt for achieving tomographic imaging of the rock mass over the tunnel. Finally, the results of all the methods applied were combined and integrated in order to assess the tectonic regime above the Eupalinean Tunnel. Fractures and shear zones were detected and imaged. Further, the elastic moduli were determined at specific spots. In general, the geophysical interpretation matches well with the visible manifestations of the instabilities of the rock and provides clues for explaining their origin. The ‘surface to tunnel’ imaging provided increased resolution, which was a great advantage. Additionally, it is concluded that the construction of the tunnel was chiefly a product of survey method rather than consideration of geological factors. Copyright © 2014 John Wiley & Sons, Ltd.
      PubDate: 2014-08-12T20:32:30.707082-05:
      DOI: 10.1002/arp.1489
       
  • Lidar Investigation of Knockdhu Promontory and its Environs, County
           Antrim, Northern Ireland
    • Authors: Rory W. A. McNeary
      Pages: n/a - n/a
      Abstract: A high-resolution aerial lidar survey (up to 40 points m-2) has been carried out in the environs of Knockdhu Promontory in the Antrim Uplands, which is recognized as one of Northern Ireland's most important relict multiperiod archaeological landscapes. This lidar survey was amongst the first such surveys commissioned specifically for archaeological purposes in Northern Ireland and has helped to re-evaluate the archaeological landscape character of a 9 km2 study area and inform future conservation studies. Sampled ground observation was undertaken in an attempt to provide a higher degree of interpretive integrity. These field observation exercises also highlighted the importance of the high vertical resolution of the data (0.05 m at 2σ (95% confidence level)) in delineating extremely subtle upstanding earthwork features that had hitherto gone unnoticed. Much of the archaeological evidence identified can be broadly ascribed to the early post-medieval period (ad 1599–1750); this includes field boundaries, cultivation furrows, enclosures, transhumance huts, abandoned settlements and associated pathways, but the higher ground of the Antrim Plateau in this locality is also characterized by evidence of prehistoric activities and substantial earthworks survive such as the ‘Linford Barrows’ and ‘Knockdhu Promontory Fort’. The lidar study has identified as many as 285 previously unrecorded potential archaeological sites and amended existing records within the Northern Ireland Sites and Monuments Record (NISMR) and has proved transformational as a technique to ‘open up’ the Ulster uplands for archaeological study. Copyright © 2014 John Wiley & Sons, Ltd.
      PubDate: 2014-06-19T23:53:17.207593-05:
      DOI: 10.1002/arp.1488
       
  • Magnetic Susceptibility Detection of Small Protohistoric Sites in the
           Raganello Basin, Calabria (Italy)
    • Authors: P. M. Van leusen; A. Kattenberg, K. Armstrong
      Abstract: This paper presents pilot geophysical investigations carried out in 2005–2006 by the Groningen Institute of Archaeology in northern Calabria, Italy. The aim of this work was to find out if and how surface magnetic susceptibility (MS) measurements might be of use to correct significant visibility biases in the results of earlier large‐scale systematic and intensive field‐walking, in particular for unobtrusive rural protohistoric sites. It was found that MS yields encouraging results under specific geopedological conditions, but that a better understanding of post‐depositional site histories and large‐scale geomorphology‐driven MS variations is needed before an effective MS‐based detection protocol in support of large‐scale field‐walking can be developed; follow‐on studies are now being conducted by the authors to this end. Copyright © 2014 John Wiley & Sons, Ltd.
      PubDate: 2014-05-19T07:11:58.835392-05:
      DOI: 10.1002/arp.1486
       
  • Geophysical Survey in Sub‐Saharan Africa: magnetic and
           Electromagnetic Investigation of the UNESCO World Heritage Site of Songo
           Mnara, Tanzania
    • Authors: K. Welham; J. Fleisher, P. Cheetham, H. Manley, C. Steele, S. Wynne-Jones
      Abstract: Magnetometry and Slingram electromagnetic surveys were conducted at the UNESCO World Heritage Site of Songo Mnara, Tanzania, as part of a multinational programme of investigation to examine the uses of space within and outside of this stonetown. The town was a major Islamic trading port during the fourteenth and fifteenth centuries. The surveys detected significant evidence for the containment of activities within the town walls, and previously unknown anthropogenic activity was revealed between the existing coral rag buildings, as well as within the open areas inside the town. Over 40 areas of magnetic disturbance were identified that corresponded directly with areas of high magnetic susceptibility in the Slingram electromagnetic in‐phase responses. On excavation many of these anomalies were found to correlate with wattle and daub structures, indicating a hitherto unidentified population, and the location of the anomalies also suggests a potentially deliberate delineation of space within the open areas of the stonetown. The combined results of the three geophysical data sets indicate that there are clear delineations in the use of space within Songo Mnara. This, coupled with the presence of industrial activities and evidence of more ephemeral occupation, neither of which had previously been recorded at the site, indicates that the pre‐existing town plan is in need of significant reappraisal. The current plan, based upon the remains of extant and collapsed coral buildings, can now be updated to incorporate the more ephemeral aspects of Swahili sites, including activity areas, and notably, the homes of the ‘hidden majority’ of the population. The results establish the benefit of a combined approach at these sites, and demonstrate that further invasive and non‐invasive exploration is required in order to fully exploit the significance of the role of geophysical techniques in understanding Swahili towns. © 2014 The
      Authors . Archaeological Prospection published by John Wiley & Sons Ltd.
      PubDate: 2014-04-30T23:26:07.203323-05:
      DOI: 10.1002/arp.1487
       
  • A Multidisciplinary Approach to Medieval and Early Modern Land Use: a Case
           Study from Southeastern Austria
    • Authors: K. Patrick Fazioli
      Pages: n/a - n/a
      Abstract: This paper presents an integrated multimethod approach to the prospection and reconstruction of medieval and early modern rural landscapes in southeastern Austria (ca. 1100–1700 ce). Pedestrian surface collection, soil phosphorus analysis, and targeted test excavation, along with place‐name and field‐shape data, were used to investigate patterns of settlement, land use and landscape organization. The results from fieldwork revealed an inverse relationship between surface ceramic densities and soil phosphate levels, suggesting different areas of rubbish disposal, habitation and agricultural practices. This case study illustrates both the benefits and challenges of synthesizing archaeological, geochemical and historical lines of evidence in the exploration of past human landscapes in central Europe. Copyright © 2014 John Wiley & Sons, Ltd.
      PubDate: 2014-04-24T22:13:04.977586-05:
      DOI: 10.1002/arp.1485
       
  • Ground‐penetrating Radar and Geological Study of the Kudruküla
           Stone Age Archaeological Site, Northeast Estonia
    • Authors: Alina Tšugai; Jüri Plado, Argo Jõeleht, Aivar Kriiska, Mario Mustasaar, Hanna Raig, Jan Risberg, Alar Rosentau
      Pages: n/a - n/a
      Abstract: A combined ground‐penetrating radar (GPR), drilling and diatom survey was carried out in order to characterize formation of the Kudruküla Stone Age Comb Ware archaeological site, northeast Estonia. A few decades ago a cultural layer was discovered, located within fine‐grained sands of the right bank of the Kudruküla Stream an altitude of 1.25–1.60 m above sea level. The layer is 15–35 cm thick and composed of poorly sorted sand of intensive reddish colour with abundant arte‐ and ecofacts, human bones, burned hearthstones and charcoal pieces. Artefacts, in particular pottery, are well preserved and frequently present as large pieces. The Kudruküla site holds an exceptional position among other Stone Age coastal settlements in that it is not located directly on top of beach ridges, but is buried under ~3 m of sand. When the Kudruküla settlement existed the level of the Litorina Sea was ~6 m above present sea level, which is ~4.5 m above the present location of the cultural layer. The current research is used to describe the geological structure of the area to provide a perspective on the history of the cultural material, and reveals that the cultural material is not restricted to one layer/lens only because it is irregularly and widely distributed within the sands of Kudruküla. The GPR and diatom analyses show that the Kudruküla cultural material is redeposited, because it occurs within an ancient point‐bar succession of a (Narva) river meander. Originally, the dwelling site had been located on top of the Narva‐Jõesuu sandy coastal ridges, which subsequently suffered erosion and the sand resedimented at the Kudruküla location. Good preservation of the cultural items shows that, after redeposition, they were buried fast, probably within a year. The present Kudruküla stream has cut into the floodplain of the ancient (Narva) river to expose the redeposited layer/lens. Copyright © 2014 John Wiley & Sons, Ltd.
      PubDate: 2014-03-14T01:11:50.040322-05:
      DOI: 10.1002/arp.1484
       
  • Investigating Construction History, Labour Investment and Social Change at
           Ocmulgee National Monument's Mound A, Georgia, USA, Using
           Ground‐penetrating Radar
    • Authors: Daniel P. Bigman; Peter M. Lanzarone
      Pages: n/a - n/a
      Abstract: Prehistoric societies from around the world constructed monumental mounded architecture (earthen pyramids) for a variety of functions, including the foundation for temples or a leader's residence, community stages and cemeteries. Flat‐topped earthen mounds often have complicated histories where the function, size, orientation and summit architecture varied throughout time. This paper presents the results from a ground‐penetrating radar (GPR) survey conducted on the summit of Mound A, the largest prehistoric Native American mound at Ocmulgee National Monument located in central Georgia, USA. Our study indicates that performing depth‐slice analyses of flat‐topped mounds can effectively map successive construction stages over distinct periods of archaeological prehistory. The GPR data show distinctive low‐amplitude, discontinuous stratigraphic variations that we interpret to be related to mound fill, which are interrupted by high‐amplitude coherent summit reflections. We also maintain sufficient vertical and horizontal resolution to identify summit architecture on earlier mound‐use episodes, which is imaged by distinct reflection geometry as patterned linear, square and circular high‐amplitude events in GPR depth‐slices. The authors recorded four possible mound summits, the western expansion of the mound, and the shifting location and shape of summit architecture; in addition to resolving a discrepancy regarding the location of early excavation units from the 1930s. Shallow geophysical data indicate a decline in the volume of material used over the course of mound construction, and by inference, a decline in the size of the labour force used to construct each stage. We conclude that the power and influence of Ocmulgee's early leadership subsided over the course of Mound A's use, and may have been contested by an emerging faction. Copyright © 2014 John Wiley & Sons, Ltd.
      PubDate: 2014-03-12T19:41:12.913469-05:
      DOI: 10.1002/arp.1483
       
  • First High‐resolution GPR and Magnetic Archaeological Prospection at
           the Viking Age Settlement of Birka in Sweden
    • Authors: Immo Trinks; Wolfgang Neubauer, Alois Hinterleitner
      Pages: n/a - n/a
      Abstract: In May 2006 high‐resolution measurements using ground‐penetrating radar (GPR) and magnetic gradiometer systems conducted over selected areas at the site of the Viking Age settlement and trading place Birka in central Sweden demonstrated the suitability of these methods for archaeological prospection of Scandinavian proto‐urban settlements. The non‐invasive geophysical surveys revealed numerous structural details of the settlement: houses, property boundaries, track‐ways, buried remains of the town ramparts dating from different building periods, including a gate, were mapped with a manually operated single‐channel GPR system and a four‐channel magnetometer array. The combination of these two prospection methods, state‐of‐the‐art data processing and visualization and archaeological interpretation within a geographical information system resulted in valuable new information about the UNESCO World Cultural Heritage Site Birka‐Hovgården. We present methodology and results of this first archaeological prospection case study conducted in 2006. Copyright © 2014 John Wiley & Sons, Ltd.
      PubDate: 2014-03-04T23:59:46.921723-05:
      DOI: 10.1002/arp.1481
       
  • Magnetic Prospection of the Pre‐Columbian Archaeological Site of El
           Caño in the cultural region of Gran Coclé, Panama
    • Authors: Alexis Mojica; Louis Pastor, Christian Camerlynck, Nicolas Florsch, Alain Tabbagh
      Pages: n/a - n/a
      Abstract: The archaeological site of El Caño is located in the cultural region of Gran Coclé and is one of the most important pre‐Columbian ceremonial complexes of the Isthmus of Panama. El Caño is 3.57 ha in area presents a set of mounds and alignment of columns of carved basalt and tuff. The first organized occupation is dated between 100 and 400 bc, and this occupation lasted until the arrival of the Spanish conquerors. In order to determine the spatiotemporal organization of the site, the first magnetic and electrical surveys of this archaeological site were performed in 2005 and 2006. Although the resistivity mapping survey did not offer any information about buried stone structures, the magnetic survey in gradiometer mode produced well‐characterized magnetic anomalies. A circular magnetic anomaly in the central area of the site allowed the discovery of one of the largest Panamanian pre‐Columbian funerary complexes. Copyright © 2014 John Wiley & Sons, Ltd.
      PubDate: 2014-02-18T19:56:45.602439-05:
      DOI: 10.1002/arp.1482
       
  • Electrical Resistivity Tomography for the Modelling of Cultural Deposits
           and Geomophological Landscapes at Neolithic Sites: a Case Study from
           Southeastern Hungary
    • Authors: Nikos G. Papadopoulos; Apostolos Sarris, William A. Parkinson, Attila Gyucha, Richard W. Yerkes, Paul R. Duffy, Panagiotis Tsourlos
      Pages: n/a - n/a
      Abstract: A large‐scale electrical resistivity tomography (ERT) survey was undertaken around the Neolithic tell of Szeghalom‐Kovácshalom in southeast Hungary, covering an area of almost 6 ha. High‐resolution ERT data were collected along 28 uniformly distributed transects of variable length using the roll‐along technique. A recently presented two‐dimensional fast non‐linear resistivity inversion algorithm was used to invert the ERT data and recover the true subsurface resistivity distribution along the specific cross‐sections. The algorithm calculates and stores in an efficient manner the part of the Jacobian matrix that is actually important within the inversion procedure, thus rendering it almost 4.8 times faster than the algorithm that calculates the complete Jacobian matrix, without losing quality. The algorithm was further modified to account for any non‐standard electrode configuration. A recently established iterative algorithm for sparse least squares problems (LSMR) was incorporated for the first time into the algorithm to solve the inverse resistivity problem. The effectiveness and robustness of the LSMR solver was highlighted through the processing of all the ERT lines. The processing and evaluation of the ERT data made it possible to map the thickness of the anthropogenic layer below the surface of the tell, to outline the horizontal and vertical dimensions of the palaeochannel adjacent to the tell, and to determine the general stratigraphy of geological layers up to 10 m below the ground surface. The ERT results also were used to update an older topographic map of the site showing the course of the palaeochannel around the tell. A synthetic model verified and enhanced the conclusions based on the field data. This study illustrates the added value that a systematic ERT survey can provide in reconstructing the ancient fluvial geomorphology of a microregion as well as the depth and horizontal extent of deposits associated with human habitation at archaeological sites. Copyright © 2014 John Wiley & Sons, Ltd.
      PubDate: 2014-02-18T00:26:35.703683-05:
      DOI: 10.1002/arp.1480
       
  • Satellite remote sensing: a new tool for archaeology By Rosa Lasaponara
           and Nicola Masini (eds). Springer‐Verlag, Heidelberg, 2012. ISBN
           978‐90‐481‐8801‐7. Price: £117.00 (hardback).
           Pages: 364.
    • Authors: Deodato Tapete; Daniel Donoghue
      Pages: n/a - n/a
      PubDate: 2014-01-23T18:25:10.079384-05:
      DOI: 10.1002/arp.1479
       
  • The Ancient Roman Aqueduct of Karales (Cagliari, Sardinia, Italy):
           Applicability of Geophysics Methods to Finding the Underground Remains
    • Authors: Antonio Trogu; Gaetano Ranieri, Sergio Calcina, Luca Piroddi
      Pages: n/a - n/a
      Abstract: Detection of the buried antique Roman aqueduct, which supplied fresh water to the ancient town of Karales (Cagliari, Italy), is not a trivial problem because of the small size of its cross section, its depth (about 10 m), and of the presence of shallow conductive layers. In order to determine the best geophysical method to use in the research of the conduit, a test was carried out over a well‐known section of the underground aqueduct in its extra‐urban part. Taking into account the geological features of the site, time‐domain electromagnetic (TEM), very low‐frequency (VLF) and electrical tomography methods were chosen. The test was conducted over several profiles. The results showed that among the electrical resistivity arrays, the Wenner–Schlumberger is the most suitable for the detection of the conduit some metres in depth, whereas the other electrical methods did not have enough resolution to distinguish between the aqueduct and other non‐related anomalies at the requested depth. The TEM method also showed good capability to detect the presence of the aqueduct in spite of very conductive superficial layers. With the exception of one profile, all VLF profiles showed anomalies that could be correlated to the aqueduct. Copyright © 2014 John Wiley & Sons, Ltd.
      PubDate: 2014-01-06T21:42:29.378163-05:
      DOI: 10.1002/arp.1471
       
  • Magnetic Investigations of Buried Palaeohearths Inside a Palaeolithic Cave
           (Lazaret, Nice, France)
    • Authors: Abir Jrad; Yoann Quesnel, Pierre Rochette, Chokri Jallouli, Samir Khatib, Hanane Boukbida, François Demory
      Pages: n/a - n/a
      Abstract: We present a magnetic study of palaeohearths within Lazaret cave (Nice, France) that demonstrates how to recognize fired structures in similar geological contexts. Using magnetic field and susceptibility mapping, excavated and potentially still‐buried palaeohearths of the cave are investigated. Our study reveals some difficulties in conducting a magnetic field survey to detect combustion features in a cave due to noise and ambiguities in anomaly assignment. To overcome these difficulties, discrete measurements and a specific post‐processing methodology were applied to remove the magnetic noise generated by surrounding artificial sources. In addition, experimental and numerical modelling constrained by laboratory examinations of the magnetic mineralogy were performed to better identify the magnetic imprint of such fireplaces. We confirm that a short‐term fireplace produces a thin ash‐bearing layer characterized by a high magnetic susceptibility and a high frequency dependence due to a large proportion of grains of pseudo‐single‐domain (PSD) size. Such a burnt soil layer is the main source of the ca. 50 nT amplitude magnetic field anomaly at a sensor height of 15 cm observed over the excavated palaeohearth, as well as over an experimental hearth. Copyright © 2013 John Wiley & Sons, Ltd.
      PubDate: 2013-11-08T02:48:16.228663-05:
      DOI: 10.1002/arp.1469
       
  • Historic Shipwreck Study in Dongsha Atoll with Bathymetric LiDAR
    • Authors: Peter Tian‐Yuan Shih; Ya‐Hsing Chen, Jie‐Chung Chen
      Pages: n/a - n/a
      Abstract: Dongsha Atoll is a coral reef located in the South China Sea. The surrounding area is characterized by dangerous shoals. Historic shipwrecks mark past human activities. Due to the shallow water and risky navigational conditions in the area, a sonar survey with platforms on the water surface was not feasible. Airborne bathymetric LiDAR, which utilizes green laser for measurement, however, is a proven convenient method for studying shipwrecks around the atoll, particularly in shallow‐water areas. At a point density of about 3.5 m by 3.5 m, four shipwrecks were identified. The bathymetric measurements allow not only the length of the shipwreck to be estimated, but also its height above the sea floor. The full waveform record of the laser reflection also provided information to separate the wreckage from its surroundings. This provides an excellent working environment for marine archaeological analysis, as not only the location, but also the depth and geomorphological information can be assessed in an integrated setting. Copyright © 2013 John Wiley & Sons, Ltd.
      PubDate: 2013-11-06T00:21:07.249362-05:
      DOI: 10.1002/arp.1466
       
  • Geophysical Observations at Archaeological Sites: Estimating Informational
           Content
    • Authors: Lev V. Eppelbaum
      Pages: n/a - n/a
      Abstract: The application of geophysical methods to archaeological sites is limited by physical, environmental, economic and time considerations. The presence of numerous kinds of noise means that in many cases the archaeological targets and surrounding media are best approached as probabilistic objects, such that the amount of information potentially available from different geophysical methods can be estimated by probabilistic and statistical methods, including the risks associated with this decision‐making. Here it is shown that simple informational and probabilistic criteria can be applied to formalize the information that can be obtained by applying different geophysical methods. To assess their relative value, geophysical methods, geophysical information and cost and time factors are convoluted in order to generate integrated parameters. This theoretical presentation of the information parameters is illustrated by the calculation of actual results. The solution to this ‘four colour’ mathematical problem shows that two independent geophysical methods are sufficient to characterize the archaeological potential of a site. Copyright © 2013 John Wiley & Sons, Ltd.
      PubDate: 2013-11-03T18:57:02.210527-05:
      DOI: 10.1002/arp.1468
       
  • Comparing Apparent Magnetic Susceptibility Measurements of a
           Multi‐receiver EMI Sensor with Topsoil and Profile Magnetic
           Susceptibility Data over Weak Magnetic Anomalies
    • Authors: Philippe De Smedt; Timothy Saey, Eef Meerschman, Jeroen De Reu, Wim De Clercq, Marc Van Meirvenne
      Pages: n/a - n/a
      Abstract: Today, most surveys in archaeogeophysical prospection use magnetic properties to detect archaeological features. Such magnetic surveys are usually conducted with magnetometers and, to a lesser extent, with magnetic susceptibility meters and electromagnetic induction (EMI) sensors. Although the latter are the only instruments that allow mapping multiple physical soil properties simultaneously, EMI remains the odd‐one‐out in archaeogeophysical prospection. Nevertheless, by simultaneously recording the electric and magnetic soil variability, EMI survey can be beneficial in early archaeological evaluation stages, because detailed pedological and archaeological information is gathered at the same time. Furthermore, by using multi‐receiver EMI instruments vertical soil variation also can be integrated into the survey. However, although the potential of EMI for mapping electric soil variations is well known from advances in soil science, magnetic susceptibility measurements have been investigated less. Here we show the potential of a multi‐receiver EMI survey to detect weak magnetic anomalies by measuring the apparent magnetic susceptibility (κa) of multiple soil volumes at a test site. The shallow κa data were compared with topsoil susceptibility measurements using a magnetic susceptibility loop sensor survey, and with magnetic susceptibility profiling using a probe sensor for evaluating the deeper κa‐data. Further comparisons were made between these datasets and aerial photography and field walking data. We found that the multiple EMI κa measurements allowed for a straightforward discrimination of the natural and anthropogenic magnetic variations of shallow and deeper soil volumes, and allowed visualizing weak magnetic anomalies. Copyright © 2013 John Wiley & Sons, Ltd.
      PubDate: 2013-10-16T19:00:24.106252-05:
      DOI: 10.1002/arp.1467
       
  • Prospecting for Prehistoric Gardens: Results of a Pilot Study
    • Authors: Kevin C. Nolan
      Pages: n/a - n/a
      Abstract: Non‐intensive agricultural systems leave little physical trace on the surface of the landscape. Geochemical analyses are useful in analysing known fields, but often cost‐prohibitive for prospection. A method of soil phosphate and magnetic susceptibility survey is proposed as a solution. Either or both soil characteristics should be altered by most agricultural systems. Anomalies in these two soil properties combined with archaeological data indicate at least one possible garden detected in the initial pilot study plot in central Indiana. The detected potential gardens match, in size and distribution, ethnographic accounts of non‐intensive agricultural fields. The promise of the proposed method of prospecting for gardens for the study of prehistoric impacts on our inherited landscapes is enormous. Copyright © 2013 John Wiley & Sons, Ltd.
      PubDate: 2013-10-03T23:31:54.194392-05:
      DOI: 10.1002/arp.1465
       
  • Ultradense Topographic Correction by 3D‐Laser Scanning in
           Pseudo‐3D Ground‐penetrating Radar Data: Application to the
           Constructive Pattern of the Monumental Platform at the Segeda I Site
           (Spain)
    • Authors: Teresa Teixidó; José Antonio Peña, Gloria Fernández, Francisco Burillo, Teresa Mostaza, Julio Zancajo
      Pages: n/a - n/a
      Abstract: Three‐dimensional ground‐penetrating radar (3D‐GPR) is one of the highest resolution geophysical methods for exploring the shallow subsurface and it is widely utilized in the diverse fields requiring this kind of information: for example archaeology, civil engineering and environmental studies. Currently, there are several ways to present 3D‐GPR results: 2D vertical pictures (radargrams), time‐ and depth‐slices, a mixture of radargram‐slice images, GPR reflectivity maps and GPR isosurface images. All of these techniques, however, require the maximum number of details possible. When the recognition surface is not horizontal, the GPR image is distorted due the topographic irregularities. To eliminate these distortions, a classic topographic correction is applied to the GPR data set, particularly in 2D GPR profiles. Generally, this topographic information is obtained by laser levelling, total station, differential Global Positioning System (GPS) or similar equipment. This study uses a new method of topographic correction based on three‐dimensional laser scanner (3D‐laser scanner) technology that provides ultradense coordinates of the terrain. A strategy for applying this topographic correction to 3D‐GPR vertical traces is discussed and evaluated by comparing corrected images with other uncorrected images obtained using the same standard processing flow. The GPR dataset used to test this method is from a monumental structure located in the Celtiberian site of Segeda I (Mara, Spain). The data were acquired using a 400 MHz antenna on 0.25 m spaced profiles. Although the relief of this structure is not overly complex, we demonstrate how the results obtained by applying this topographic correction technique allow a better archaeological interpretation of the internal architecture. The technique is therefore presented as a new archaeological tool to obtain clearer images of buried structures and/or their internal elements. Copyright © 2013 John Wiley & Sons, Ltd.
      PubDate: 2013-10-02T19:54:14.356665-05:
      DOI: 10.1002/arp.1464
       
 
 
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