scholarly journals Uso do radar penetrante no solo (GPR) na investigação dos solos dos tabuleiros costeiros no litoral norte do estado da Bahia

2002 ◽  
Vol 26 (2) ◽  
pp. 373-380 ◽  
Author(s):  
J. M. Ucha ◽  
M. Botelho ◽  
G. S. Vilas Boas ◽  
L. P. Ribeiro ◽  
P. S. Santana

Foram estudados nove perfis ao longo de uma toposseqüência sobre os sedimentos do Grupo Barreiras, na Fazenda Rio Negro, município de Entre Rios (BA), utilizando a prospecção eletromagnética por meio do Radar Penetrante no Solo - "Ground-penetrating radar - GPR", objetivando analisar a utilização dessa ferramenta na aquisição de informações sobre as feições que ocorrem no solo, mediante a comparação entre os radargramas obtidos e a descrição pedológica. O equipamento utilizado foi um Geophysical Survey System modelo GPR SR system-2, com antena de 80 MHz. A análise radargramétrica confirmou o aparecimento dos fragipãs e duripãs em profundidade, que ocorrem sempre acompanhados de um processo de transformação dos solos do tipo Latossolo Amarelo e Argissolo Amarelo em Espodossolo. Os padrões de reflexão mostram claramente os domínios dos solos argilosos e dos solos arenosos, com e sem a presença dos horizontes endurecidos.

2014 ◽  
Vol 25 (3) ◽  
pp. 239-255 ◽  
Author(s):  
Jean-François Millaire ◽  
Edward Eastaugh

Recent geophysical survey at the early urban center of the Gallinazo Group in the Virú Valley highlights the potential for a multifaceted approach to remote sensing on the desert coast of South America and underscores the value of these well-established techniques for the rapid and detailed mapping of complex urban architecture. The Gallinazo Group (100 B.C.-A.D. 700) was an early city home to a population of between 10,000 and 14,400 people living in a network of agglutinated houses, plazas, public buildings, and alleyways. In 2008, detailed analysis of the site was undertaken, integrating traditional excavation techniques, soil coring, magnetometry, and ground-penetrating radar to gain a better understanding of the urban morphology of the site. The results of this fieldwork were extremely successful, with large areas of the urban layout being mapped in great detail. This article presents results from our survey, highlighting the potentials and limitations of each technique.


2021 ◽  
Vol 13 (7) ◽  
pp. 3805
Author(s):  
Carmine Massarelli ◽  
Claudia Campanale ◽  
Vito Felice Uricchio

The ability of the ground penetrating radar (GPR) method as a rapid preliminary survey to detect the presence of illegally buried waste is presented in this paper. The test site is located in the countryside of “Sannicandro di Bari” (Southern Italy) and has a surface area of 1500 m2. A total of five parallel profiles were acquired in 2014 using a geophysical survey system instrument (GSSI) equipped with 400 and 200 MHz antennae in the monostatic configuration. Two of the five profiles were registered in a control area to compare a natural condition to a suspected waste buried zone. As a result of a processing and elaboration workflow, GPR investigations allowed us to interpret the signal qualitatively within a maximum depth of about 3 m, identifying many signal anomalies, whose characteristics can be considered typical of buried waste. The GPR response of the three profiles acquired in the suspected area showed substantial differences not found in the control’s profiles. Anomalies related to the presence of intense scattering, of dome structures not attributable to cavities, but rather to a flattening and compacting of different layers, therefore, less electrically conductive, were identified in the suspected area. The interpretation of the results obtained by the GPR profiles was confirmed by excavations carried out with bulldozers. Large quantities of solid waste illegally buried (e.g., waste deriving from construction and demolition activities, bituminous mixtures, discarded tires, glass, plastic, municipal waste) were revealed in all the sites where anomalies and non-conformities appeared compared to the control natural soil.


Sensors ◽  
2020 ◽  
Vol 20 (10) ◽  
pp. 2938
Author(s):  
Neil Linford ◽  
Russell MacKechnie-Guire ◽  
May Cassar

The aim of this trial project was to identify whether buried archaeological remains may have an influence on equine locomotion, through comparison with a non-invasive Ground Penetrating Radar (GPR) survey. This study was conducted at the world-renowned Burghley Horse Trials site, near Stamford, City of Peterborough, U.K. that has a diverse range of heritage assets throughout the wider park land centred on the Grade 1 listed Elizabethan Burghley House. The initial aim of the research was to first use geophysical survey to identify and characterise archaeological remains, and then to determine a suitable location to conduct an equine locomotion study. This trial was conducted with five event type horses with their gaits recorded through the use of three axis, wireless, Inertial Measurement Units, and high speed video capture. It was hoped that this study might indicate an association between the presence of well preserved archaeological remains and changes in the gait of the horses, similar to those shown by studies of dressage horses over different riding surfaces. The results from the equine locomotion study did demonstrate a correlation between the presence of surviving archaeological remains and the alteration in the horses’ gait and, although this is only a preliminary study, the results may well be of interest during the design and construction of equine event facilities. Geophysical survey could, for example, be considered during the design of new or alteration to existing equine courses to allow some mitigation in the location of the course with respect to any archaeological remains, or through the appropriate use of a protective artificial surface.


2015 ◽  
Vol 19 ◽  
pp. 233-253
Author(s):  
Tomasz Kalicki ◽  
Joanna Krupa ◽  
Sławomir Chwałek

The geoarchaeological research conducted consisted of a geomorphological prospecting of the Paphos region and a geophysical examination of the ancient town of Nea Paphos and its agora. In addition, the morphogenetic processes that shaped the coastal plains of the Cypriot area were also determined and a research hypothesis that could explain the shrinking of the bay and the decline of the harbour north of the cape of Paphos was formulated. The Mala GPR (Ground Penetrating Radar) ProEx System, which is compatible with shielded antenna of 500MHz, was used for the geophysical survey of the area. 95 profiles were completed in a northsouth direction (1m apart) and 51 in an eastwest direction (2m apart). One of the main difficulties was to distinguish the stone structures, as the bottoms of their walls were formed at the natural level of the rock and there were pebble layers located above them. Using versatile geophysical techniques, we have attempted to answer a couple of questions: Was the agora area a fully built-up one and what does the continuation of the walls into undiscovered sections of the agora signify?


Author(s):  
Stephanie M. Sullivan ◽  
Tiago Attore

Geophysical survey and other non-invasive methods are, in some cases, the only options available for archaeological investigation. This is exemplified at the Collins site, a possible Late Woodland to Middle Mississippian period, multi-mound, civic ceremonial center in Northwest Arkansas. The site is located on private property and although excavation is not allowed, non-invasive survey methods are permitted on its northern section. This paper presents the results of a ground-penetrating radar survey over Mounds B, C, and D. The results reveal a number of features that are interpreted as mortuary structures as well as evidence of multiple building episodes over time within distinct layers of Mound C. A high-resolution DEM generated with aerial imagery is used in interpreting the GPR data as well as to provide an updated map of mound size and distribution. By integrating the GPR data with the DEM, orthoimagery, and magnetic gradiometry data from a previously documented survey, and comparing the results to ethnohistoric accounts, interpretation of the geophysical data is enhanced. Geophysical survey is often used to assess an archaeological site on a landscape scale. By narrowing the scope to individual mounds, this article demonstrates how multiple, complementary technologies, when used in concert, can inform on the feature level.


2019 ◽  
Vol 11 (12) ◽  
pp. 1478 ◽  
Author(s):  
Bianco ◽  
De Giorgi ◽  
Giannotta ◽  
Leucci ◽  
Meo ◽  
...  

The regular application of geophysical survey techniques to evaluate archaeological sites is well established as a method for locating, defining, and mapping buried archaeological materials. However, it is not always feasible to apply a range of different methods over a particular site or landscape due to constraints in time or funding. This paper addresses the integrated application of three geophysical survey methods over an important archaeological site located in south Italy. In particular, it is focused on the results achieved from a past geophysical survey and the ongoing excavations performed by archaeologists in the site of Muro Leccese. Muro Leccese (Lecce) is one of the most important Messapian archaeological sites in southern Italy. The archaeological interest of the site was generated since the discovery of the remains of Messapian walls (late 4th–3rd centuries BC). With the aim of widening the archaeological knowledge of the Messapian settlement, several integrated methods, including magnetometry, ground-penetrating radar, and electrical resistivity tomography were used on site to fulfill a number of different research objectives. Since the most important targets were expected to be located at shallow soil depth, a three-dimensional (3D) ground-penetrating radar (GPR) survey was carried out in two zones, which were labeled respectively as zone 1 and zone 2, and were both quite close to the archaeological excavations. The GPR investigations were integrated with a 3D electrical resistivity tomography (ERT) survey in zone 1 and with a magnetometric, in gradiometry configuration survey in zone 2. The integration of several techniques allowed mapping the structural remains of this area and leading the excavation project. The geophysical results show a good correspondence with the archaeological features that were found after the excavation. Current work on the geophysical survey data using different codes for the processing of the data and merging different datasets using a Geographic Information System allowed achieving a user-friendly visualization that was presented to the archaeologists.


2015 ◽  
pp. 423-429
Author(s):  
Lőrinc Timár ◽  
Zoltán Czajlik ◽  
András Bödőcs ◽  
Sándor Puszta

This article investigates the usability of ground-penetrating radar and provides a report on the geophysical survey in the zone of the Pature du Couvent on the Mont Beuvray. In 2014 a large area was explored and this paper presents how the results could be related to the excavated archaeological structures.


2001 ◽  
Vol 34 (4) ◽  
pp. 1285
Author(s):  
Γ. ΒΑΡΓΕΜΕΖΗΣ ◽  
Η. ΦΙΚΟΣ ◽  
Ι. ΜΕΡΤΖΑΝΙΔΗΣ ◽  
Ε. ΖΑΝΑΝΙΡΙ ◽  
Ζ. ΡΟΥΜΕΛΙΩΤΗ ◽  
...  

Remains of fossil plants, which form the famous «Petrified forest of Lesvos», have been found in many localities on the western part of Lesvos Island. The fossilized forest of Lesvos was developed during Late Oligocene to Lower - Middle Miocene, due to the intense volcanic activity in the area (Velitzelos and Zouros, 1997). The products of the volcanic activity had covered the vegetation of the area and the fossilization process took place due to favorable conditions. The fossilized plants in Lesvos are silicified remnants of a sub-tropical forest that existed on the northwest part of the island 20-15 million years ago. In the present study the results of the geophysical survey that has been applied to several locations of the petrified forest are presented. Electrical tomography, magnetic mapping and Ground Penetrating Radar methods of geophysical prospecting have been applied. The surrounding material, which is formed mainly by volcanic ash, contains also volcanic rocks in that size that it could be detected as petrified trunk. So, the effectiveness of the geophysical methods in such an environment has been tested in selected areas where petrified trunks were semi-uncovered. Lied trunks have been successfully detected by the electric tomography in several cases, since the resistivity of the fossilized material is much higher that the resistivity of the volcanic ash. The horizontal mapping of the total magnetic field in the same cases of lied trunks has been also successful since it was combined with the electric tomography and the anomaly were located in the same place and shape. Detection of petrified trunks looks to be uncertain in cases of standing trunks. That, because anomaly of the same pattern could be produced by an intrusion of a rock which the magnetic susceptibility is lower than this of the fossilized material. The same problem has been noticed also to the GPR (Ground Penetrating Radar) data. Several positions to be excavated have been proposed.


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