GPR data processing for fractures and flakes detection in sandstone

被引：13

作者：

Denis, Alain ^{[1
]}

Huneau, Frederic ^{[1
]}

Hoerle, Stephane ^{[2
]}

Salomon, Andrew ^{[2
]}

机构：

[1] Univ Bordeaux 1, GHYMAC, F-33405 Talence, France

[2] Univ Witwatersrand, Rock Art Res Inst RARI, Johannesburg, South Africa

来源：

JOURNAL OF APPLIED GEOPHYSICS | 2009年 / 68卷 / 02期

关键词：

Ground-Penetrating Radar; Fracture; Flake; Data processing; Modelling; Simulation; ROCK ART SITE; GEOPHYSICAL METHODS; RADAR;

D O I：

10.1016/j.jappgeo.2009.01.003

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

GPR profiles acquired with 1.5 GHz antennae, on the main panels of Game Pass shelter, a major painted rock art site in the KwaZulu-Natal Drakensberg (South Africa), provide a better knowledge of sandstone blocks ready to detach and can help to precisely map the conservation condition of rock art panels. However, shallow rock wall discontinuities, such as flakes, fractures or joints comprised between 1 and 4 cm in depth, cannot be easily detected without specific GPR data processing. In this paper, we focus on the near-field zone, which contains a combination of reflections obscuring these coming from very shallow discontinuities. We propose an identification method for rock flakes, based on Monte-Carlo simulations, to obtain a probability of detection of the sought-after discontinuities or objects very close to the ground surface. (c) 2009 Elsevier B.V. All rights reserved.

引用

页码：282 / 288

页数：7

共 17 条

[1] Effects of the transition zone above a water table on the reflection of GPR waves
Bano, Maksim
[J]. GEOPHYSICAL RESEARCH LETTERS, 2006, 33 (13)
[2] Conyers LawrenceB., 2004, Ground-Penetrating Radar for Archaeology
[3] Daniels D.J., 2004, Ground Penetrating Radar
[4] Combined use of geophysical methods and remote techniques for characterizing the fracture network of a potentially unstable cliff site (the 'Roche du Midi', Vercors massif, France)
Deparis, J.
Fricout, B.
Jongmans, D.
Villemin, T.
Effendiantz, L.
Mathy, A.
[J]. JOURNAL OF GEOPHYSICS AND ENGINEERING, 2008, 5 (02) : 147 - 157
[5] ERIKSSON P, 1983, THESIS U NATAL PIETE
[6] Imaging in the ground-penetrating radar near-field zone: a case study from New Mexico, USA
Ernenwein, Eileen G.
[J]. ARCHAEOLOGICAL PROSPECTION, 2006, 13 (02) : 154 - 156
[7] GIANNOPOULOS A, 2002, GPRMAX2D 3D V1 5 USE
[8] GPR data processing for 3D fracture mapping in a marble quarry (Thassos, Greece)
Grandjean, G
Gourry, JC
[J]. JOURNAL OF APPLIED GEOPHYSICS, 1996, 36 (01) : 19 - 30
[9] Using the ground-penetrating radar to assess the conservation condition of rock-art sites
Haerle, Stephane
Huneau, Frederic
Salomon, Andrew
Denis, Alain
[J]. COMPTES RENDUS GEOSCIENCE, 2007, 339 (08) : 536 - 544
[10] Rock temperatures as an indicator of weathering processes affecting rock art
Hoerlé, S
[J]. EARTH SURFACE PROCESSES AND LANDFORMS, 2006, 31 (03) : 383 - 389

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