مؤتمر
Unusual geophysical techniques in Archaeology: HVSR and Induced Polarization. A case history
| العنوان: | Unusual geophysical techniques in Archaeology: HVSR and Induced Polarization. A case history |
|---|---|
| المؤلفون: | ABU-ZEID, Nasser, BIGNARDI, Samuel, SANTARATO, Giovanni, Corradini Erica, Morandi Niccolò, Nizzo Valentino |
| المساهمون: | Abu Zeid N., Corradini E., Bignardi S., Morandi Niccolò, Nizzo V., Santarato G., EAGE, ABU-ZEID, Nasser, Corradini, Erica, Bignardi, Samuel, Morandi, Niccolò, Nizzo, Valentino, Santarato, Giovanni |
| بيانات النشر: | EAGE NLD Amsterdam |
| سنة النشر: | 2016 |
| المجموعة: | Università degli Studi di Ferrara: CINECA IRIS |
| مصطلحات موضوعية: | Horizontal-to-Vertical Spectral Ratio, acoustic impedance, Induced Polarisation, |
| الوصف: | Conventionally employed geophysical methods in archaeological investigations , i.e. ground penetrating radar(GPR), magnetometry, geoelectric (electrical resistivity tomography: ERT) and geo-electromagnetic (FDEM) techniques, can be hampered by specific site conditions. In the case history here presented, i) magnetometry was ruled out due to the presence of iron structures used to support nearby fences and greenhouses partially covering part of the site; ii) GPR employment was tested but not employed due to low penetration depth (i.e. presence of superficial clay sediments) which was much less than the depth of the target, iii) ERT, unfortunately, could not detect the paleo-surface(s) layer(s) as their thickness is below the resolving power of the method. For these reasons and keeping in mind that the paleo-surfaces could have been stiffened due to trampling of human activity over the centuries along which the settlement existed, we employed the Horizontal-to-Vertical Spectral Ratio method (HVSR) which is sensitive to the presence of appreciable contrasts of acoustic impedance of such paleo-surfaces. The obtained results have been proved by direct excavations. Likewise, the Induced Polarization tomography (IPT) which was acquired during the ERT survey, shed light on the presence of increased and well-organized chargeability values that inferred the presence of a paleo-riverbed. This indeed contributed in the reconstruction of the paleo-geomorphological evolution of such important archaeological site of Pilastri. We are confident that the HVSR is capable of localizing eventual presence of paleo-living surfaces thus guiding archaeologists to sites were future excavations can be planned. Finally, the possibility to employ the IPT can help in the reconstruction of the paleo-geographice evironmnets of such sites which are common in lowland areas such as the Po Plain |
| نوع الوثيقة: | conference object |
| وصف الملف: | ELETTRONICO |
| اللغة: | English |
| العلاقة: | ispartofbook:Proceedings of a meeting held 4-8 September 2016, Barcelona, Spain; Near Surface Geoscience 2016; firstpage:1; lastpage:5; numberofpages:5; alleditors:EAGE; http://hdl.handle.net/11392/2352128Test |
| الإتاحة: | http://hdl.handle.net/11392/2352128Test |
| رقم الانضمام: | edsbas.B3D1D846 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |