Coastal Regulation Zone Information of Tamil Nadu
Tirunelveli District

Home Introduction CRZ Study Area Objectives & Methodology Results	Coastal Regulation Zone of Tirunelveli District: Geographic location:    The coast of Tirunelveli district extends from Kayamozhi on the North and ends at South East of Karungulam coast. The coast line runs NE- SW direction. Geographically it is located between 78° 7' 30" E - 77° 35' 30" E longitude and 8° 27' 30'' S - 8° 2' 30" S latitude. Fig: Coastal Regulation Zone Information in Tamil Nadu : Tirunelveli District Physiography:    The south of Thiruchendur coast, consist sandy beaches with beach sand containing heavy minerals on the Karungulam coast. Sand dunes rise up to 67m along the coast. The general relief goes over to 15 m and above. Geology:    This stretch comprises mainly of Archaeans, Quaternary and recent geological formation. Quaternary and Recent sediments are the geological units occurring in this coast. Geomorphology:    The following coastal geomorphologic features commonly occur along this coast. Beach Beach ridges Cliffed coast. Sand dunes Beach Terraces Spits Caspates Salt marsh Teri sands. The south of Tiruchendur coastline is marked by a narrow beach, beyond which extends the coastal ridge from Manapadu to Kudangulam over which sand dunes and beach terraces have developed. The quaternary sandstones are exposed as wave cut platform all along the coast from Periyatalai to Puvari. Distribution of Coastal Regulation Zone:    The different coastal regulation zone class of Tirunelveli district coast and their areal extent are presented in the Table.11. Table.11   Coastal Regulation Zone classes and their areal extent of Tirunelveli CRZ-I sq.km CRZ-II sq.km CRZ-III sq.km LTL km HTL km 100m line km 200m line km 500m line km 14.324 Nil 13.625 58.63 95.19 Nil 74.88 75.28 Natural Resources: Water    Archaean and sedimentary formations are traversed in coastal areas, comprising of sand, clay, sandstone, calcareous sand with shall inclusion, laterite, lateriate ganges, granite gneisses, charnockite, pegmatite and quartz .    Dug cum bore wells and shallow tube wells are prominent in this area. The water table has been highly depleted due to extraction of ground water for irrigation. Mineral    This coastal belt is rich in garnet illuminate and monazite sands . Human Settlements:    This district has seven taluks namely Radhapuram, Nangunery, Palayankottai, Ambasumudram, Tenkasi, Sivagiri and Sengottai. The present population of this district is 2,501,832 in this 8,03,839 are male and 7,96,510 are female. Seventy one percent of people in this district are literates Climate:    The factors that influence the climate of this stretch are the two monsoon winds the proximity of sea and the dwindling height of the western ghats. Due to the absence of hill ranges of considerable height, the monsoon do not precipitate heavy showers. The south west monsoon also bring showers in the months of June and July and this season is locally called as Saral. The period from January to May is marked by unusual hot climate with 38ºC. The coldest month is December with a temperature of 25ºC.
	Home | Introduction | CRZ | Study Area | Objectives&Methodology | Results