GOVERNMENT OF KERALA DISTRICT SURVEY REPORT OF MINOR MINERALS (EXCEPT RIVER SAND) Prepared as per Environment Impact Assessment (EIA) Notification, 2006 issued under Environment (Protection) Act 1986 by DEPARTMENT OF MINING AND GEOLOGY www.dmg.kerala.gov.in November, 2016 Thiruvananthapuram Table of Contents Page no. 1 Introduction ............................................................................................................................... 3 2 Administration ........................................................................................................................... 3 3 Drainage ..................................................................................................................................... 3 4 Land use ..................................................................................................................................... 6 5 Rainfall and climate.................................................................................................................... 6 6 Meteorological Parameters ....................................................................................................... 8 6.1 Temperature .......................................................................................................................... 8 6.2 Relative Humidity ................................................................................................................... 8 6.3 Evaporation ............................................................................................................................ 8 6.4 Sunshine Hours ...................................................................................................................... 8 6.5 Wind .. ............................................................................................................................... 8 6.6 Potential Evapotranspiration (PET) ........................................................................................ 8 7 Geology ...................................................................................................................................... 8 8 Geomorphology ....................................................................................................................... 11 9 Soil type.................................................................................................................................... 11 10 Groundwater scenario ............................................................................................................. 11 11 Natural hazards ........................................................................................................................ 14 12 Mineral Resources ................................................................................................................... 14 12.1 Major minerals ..................................................................................................... 14 12.2 Minor minerals ..................................................................................................... 14 12.2.1 Ordinary Earth .......................................................................................................... 14 12.2.2 Ordinary Clay (tile/brick clay) .................................................................................. 19 12.2.3 Ordinary Sand .......................................................................................................... 21 12.2.4 Laterite ..................................................................................................................... 22 12.2.5 Granite Dimension Stone and Granite (building stone)........................................... 24 13 Details of minor mineral concessions ...................................................................................... 25 District Survey Report, Ernakulam District, Kerala State 1 14 References ............................................................................................................................... 42 . .. . . District Survey Report, Ernakulam District, Kerala State 2 DISTRICT SURVEY REPORT OF MINOR MINERALS ERNAKULAM DISTRICT (This report is to be submitted along with application for Environmental Clearance (EC) for mining of all minor minerals except river sand) 1 Introduction . . . . .. 2 Administration .. 3 Drainage .. District Survey Report, Ernakulam District, Kerala State 3 District Survey Report, Ernakulam District, Kerala State 4 . .. . . . . . .. . . .. . .. . . . . .. . .. . District Survey Report, Ernakulam District, Kerala State 5 4 Land use . . . .. .. . . . . 5 Rainfall and climate .. .. . . . District Survey Report, Ernakulam District, Kerala State 6 . . .. .. District Survey Report, Ernakulam District, Kerala State 7 6 Meteorological Parameters 6.1 Temperature . . 6.2 Relative Humidity . .. 6.3 Evaporation . . . . 6.4 Sunshine Hours . .. ... 6.5 Wind 6.6 Potential Evapotranspiration (PET) . 7 Geology . . . . . . District Survey Report, Ernakulam District, Kerala State 8 . . .. . District Survey Report, Ernakulam District, Kerala State 9 . . District Survey Report, Ernakulam District, Kerala State 10 8 Geomorphology . ... ... .. . .. 9 Soil type . .. . . .. ... .. . ... . 10Groundwater scenario . . . District Survey Report, Ernakulam District, Kerala State 11 .. . . . ... .. District Survey Report, Ernakulam District, Kerala State 12 . .. . . . District Survey Report, Ernakulam District, Kerala State 13 11Natural hazards . 12Mineral Resources 12.1Major minerals . . . ... 12.2Minor minerals 12.2.1 Ordinary Earth . . . . .. . . . .. . . District Survey Report, Ernakulam District, Kerala State 14 . . .. . . . . . ... .. .