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IAPRS & SIS, Vol.34, Part 7, “Resource and Environmental Monitoring", Hyderabad, India, 2002 
7.0 LINEAMENTS 
The deep main faults represented by vertical or horizontal 
displacement, in these mylonisation and or phyllonitisation and 
local brecciation and recognizable on aerial photographs as 
linear features are considered as lineament. Recently a 
lineament is defined as a regional scale linear or curvilinear 
features pattern or change of pattern that can be identified in a 
data set and attributed to a geological formation or structural 
formation (Qureshy 1990). Satellite Remote Sensing has 
provided an alternative method of lineament mapping 
(Kumar et al 1990). Lineaments are linear features commonly 
associated with dislocation and deformations. They provides 
the pathways for ground water movement and are 
geologically and hydrogeoloically very important (Sankar et 
al 1993). The lineaments and distribution are shown in 
Fig.5. From this figure most of the lineaments bimodel 
orientation and density of the lineaments are maximum 
southeastern parts. The permeability of rocks possessing 
lineament are expected to be significantly higher. 
8.0 RESULTS AND DISCUSSIONS 
l.The satellite images data gives a lot of information 
pertaining to geological, hydrogeomorphological and 
landuse/land cover environs of the study area. 
2. The area is mainly comprised of hornblende biotite 
gneiss, granites and a few pockets of quarzites intrusions acts 
as a natural water bearing formations. 
3. This area has undergone successive tectonic activity and is 
traversed by a number of lineaments were identified with the 
help of satellite imageries.The lineaments and intersection of 
lineaments zones is favourable indicator for groundwater 
developmental activities. 
4. In the study area groundwater prospects are good in the 
zones of buried pediments deep and intersection of the 
lineaments whereas poor in the shallow pediments because of 
less weathered nature and run-off is high, in this area water 
may stored temporary reservoir in the weakplanes. In this 
region groundwater should be limited with adequate proper 
planning and managements unless over exploration of 
groundwater will be disturb the groundwater balance in that 
area. 
5. Systematic electrical resistivity survey should be 
required for exact position to locate the high yielding borewell, 
dug wells and dugcum bore wells. 
ACKNOWLEDGEMENT 
The Prof. & Head, Centre Remote Sensing, Bharathidasan 
University, Trichirappalli is gratefully acknowledged for 
kindly granting the permission to publish this article. 
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