Verification of the Suspected Ta-chia-tung Fault by Ground Penetrating Radar and Resistivity Image Profiling Methods

Yang, Chia‐Ning; Yu, C.; Guo, Tao; Tsaur, Jeng-Yu

doi:10.3319/tao.2005.16.5.1045(t)

Cited by 1 publication

(2 citation statements)

References 11 publications

(16 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Two-dimensional (2D) surface-based resistivity surveys have been used widely in different shallow subsurface explorations (e.g., Daily et al 1992;Yang et al 2002;Yang et al 2005;Cassiani et al 2006;Cheng et al 2008 ). In some cases, the 2D sections have been combined to form reasonably accurate images of three-dimensional (3D) structures (e.g., Bernstone et al 1997;Dahlin and Loke 1997); however, 3D techniques (Loke and Barker 1996;Slater et al 2002) for resistivity surveys may have to be considered if one has to illustrate detailed subsurface structures in a strongly heterogeneous environment (Dahlin et al 2002).…”

Section: Introductionmentioning

confidence: 99%

“…The self-healing of fractures filled with mud-fluids causes the mud fluid conduits to vary from time to time and makes it difficult to observe the connection of the fracture systems at the surface. In this particular area, we first conducted 2D resistivity imaging surveys between 2005and 2007(Chang et al 2010 for monitoring the variation of the resistivity structures. From the results of 2D surveys, we learned that the fractures filled with mud fluids are very conductive 3D objects compared to the surrounding saturated mudstone and that their orientations may not be imaged correctly in 2D surveys owing to the shadow effect (e.g., Nimmer et al 2008).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Using Integrated 2D and 3D Resistivity Imaging Methods for Illustrating the Mud-Fluid Conduits of the Wushanting Mud Volcanoes in Southwestern Taiwan

Chang¹,

Chang²,

Liu³

et al. 2011

Terr. Atmos. Ocean. Sci.

View full text Add to dashboard Cite

We conducted 2D and 3D looped resistivity surveys in the Wushanting Natural Landscape Preservation Area (WNLPA) in order to understand the relationships of the mud-fluid conduits in the mud volcano system. 2D resistivity surveys were conducted along seven networked lines. Two separate C-shape looped electrode arrays surrounding the volcano craters were used in the study. First, the two 3D looped measurements were inverted separately. Yet the inverted 3D images of the mudvolcano system were inconsistent with the landscape features suggesting that artifacts perhaps appeared in the images. The 3D looped data were then combined with the 2D data for creating a global resistivity model of WNLPA. The resulting 3D image is consistent with the observed landscape features. With the resistivity model of WNLPA, we further tried to estimate the distribution of water content. The results suggest that the 3D resistivity image has the potential to resolve the dual porosity structures in the mudstone area. Last, we used a simplified WNLPA model for forward simulation in order to verify the field measurement results. We have concluded that the artifacts in the 3D looped images are in fact shadow effects from conductive objects out of the electrode loops, and that inverted images of combined 2D and 3D data provide detailed regional conductive structures in the WNLPA site.

show abstract