Geology Reference
In-Depth Information
Figure 12.
Krigged map (45 bore-well lithologs—IFP—and 80 VES
interpretations) of the elevation (in m amsl) of the base of the saprolite (base of
the laminated layer) on the 60 km
2
southern India Maheswaram catchment
(from Dewandel et al., 2006). The plot in the right corner shows the variogram
used for krigging.
of the ground surface. Although the time spent on field surveying was kept
to a minimum, measurements done later showed that the uncertainty
concerning the altitude of the bottom of the saprolite (generally better than
10 m) was consistent with this regional approach.
Figure 12 displays an example of a similar map obtained on the southern
India Maheswaram catchment (Dewandel et al., 2006), mainly from
geophysical data (Vertical Electric Soundings), and well data (lithologs). It
was completed by observations on outcrops (dug-wells).
APPLICATIONS
The main research results obtained these last years on hard rock aquifers and
the main practical applications of these results for the development, the
management and the protection of their water resource are summarised in
Table 2.
