The data… Geological Survey of India

OFFSHORE BLOCKS OF

HEAVY MINERALS AND CONSTRUCTION GRADE SAND HEAVY MINERALS INCLUDE: ILMENITE, RUTILE, SILLIMANITE, ZIRCON MONAZITE & GARNET

THESE ARE WIDELY USED IN PAINT, AS REFRACTORIES, ABRASIVES, IN ROCKETS ETC.. HEAVY MINERAL BLOCKS

26 OFFSHORE HEAVY MINERAL BLOCKS (1’X1’ SIZE) HAVE BEEN IDENTIFIED IN THE & -TAMILNADU SECTORS

MAHARASHTRA SECTOR – 5 BLOCKS Total Resource: 2.75 million tonnes

KERALA- SECTOR – 21 BLOCKS Total Resource: 9.572 million tonnes

Total Resource in 26 Blocks: 12.320 million tonnes Index Map of Maharashtra Sector Index Map of Kerala-Tamil Nadu Sector MAHARASHTRA SECTOR – 5 BLOCKS

Block-1 0.956252 million tonnes Block-2 0.226749 million tonnes Block-3 0.694934 million tonnes Block-4 0.362987 million tonnes Block-11 0.513089 million tonnes KERALA-TAMIL NADU SECTOR: 5 WARKALAI BLOCKS Total Resource: 2.997 million tonnes

Block No Ilmenite Zircon Monazite Sillimanite Garnet TEHM

Block-83 0.53306 0.0382119 0.016303 0.14177 0.023179 0.75252

Block-84 0.513806 0.0302669 0.010674 0.138808 0.011307 0.70486

Block-91 0.565032 0.0305688 0.014264 0.138315 0.051275 0.79945 Block-98 0.334526 0.0153477 0.007548 0.137219 0.016509 0.51115

Block-99 0.135968 0.0118262 0.004926 0.059375 0.017861 0.22995 KERALA-TAMIL NADU SECTOR: 3 CHAVARA BLOCKS Total Resource: 0.683 million tonnes

Block No Ilmenite Zircon Monazite Sillimanite Garnet TEHM Block-34 0.149815 0.012502 0.003586 0.042108 0.001711 0.209722 Block-36 0.073182 0.012993 0.00123 0.027495 0.000826 0.115726 Block-42 0.193299 0.023172 0.006484 0.117485 0.017235 0.357675 KERALA-TAMIL NADU SECTOR: 11 PUVAR BLOCKS Total Resource: 4.4799 million tonnes

Block No Ilmenite Zircon Monazite Sillimanite Garnet TEHM Block-171 0.300862 0.014393 0.006725 0.183689 0.021044 0.526713 Block-174 0.194918 0.012288 0.006045 0.137713 0.021377 0.372342 Block-178 0.162943 0.01091 0.008186 0.075857 0.010952 0.268847 Block-183 0.143011 0.01042 0.005239 0.057065 0.008693 0.224429 Block-186 0.335287 0.02255 0.011755 0.129104 0.030647 0.529344 Block-191 0.237615 0.015162 0.013147 0.092028 0.011985 0.369938 Block-196 0.15886 0.010004 0.008554 0.061497 0.01351 0.252426 Block-201 0.34451 0.022775 0.017135 0.119414 0.035384 0.539218 Block-202 0.178581 0.009531 0.008643 0.071021 0.023538 0.291314 Block-205 0.535518 0.030264 0.040635 0.094331 0.045948 0.746697 Block-206 0.194651 0.010827 0.009822 0.079693 0.063671 0.358664 KERALA-TAMIL NADU SECTOR: 2 MIDALAM BLOCKS Total Resource: 0.853 million tonnes

Block No Ilmenite Zircon Monazite Sillimanite Garnet TEHM Block-213 0.300049 0.026743 0.021106 0.070369 0.04563 0.463896 Block-214 0.270924 0.015618 0.015439 0.063012 0.024748 0.38974 74 CONSTRUCTION GRADE SAND BLOCKS (1’x1’ size) OCCURRING IN FOUR SECTORS IN THE KERALA OFFSHORE

1. SECTOR - 267.48 million tonnes (24 Blocks) 2. CHAVAKKAD SECTOR - 76.51 million tonnes (10 Blocks) 3. ALLEPY SECTOR - 323.614 million tonnes (30 Blocks) 4. SECTOR - 77.72 million tonnes (10 Blocks) TOTAL RESOURCE IN 74 BLOCKS - 745 million tonnes

COUNTRIES USING OFFSHORE SAND

UK NETHERLANDS NEW ZEALAND JAPAN SRILANKA SOUTH KOREA FRANCE MIDDLE EAST SINGAPORE PONNANI SECTOR – 24 BLOCKS (267.48 million tonnes)

Map showing sample locaons of Map showing sand tonnage of Ponnani Sector Ponnani Sector CHAVAKKAD SECTOR – 10 BLOCKS (76.51 million tonnes)

Map showing sample locaons of Map showing sand tonnage of Chavakkad Sector Chavakkad Sector ALLEPPEY SECTOR – 30 BLOCKS (323.614 million tonnes)

Map showing sample locations of Map showing sand tonnage of Alleppey Sector Alleppey Sector KOLLAM SECTOR – 10 BLOCKS (77.72 million tonnes)

Map showing sample locations of Map showing sand tonnage of Kollam Kollam Sector Sector SAND CHARACTERISTICS

SECTOR PONNANI CHAVAKKAD ALLEPPEY KOLLAM

MEAN SIZE 0.3 – 0.56 0.3 – 0.5 0.3 – 0.65 0.3 – 0.45 (mm)

CHLORIDE CONTENT 0.21 – 0.35 0.25 – 0.42 0.22 – 0.5 0.2 – 0.43 ( Wt %)

MINERAL QUARTZ > 85% QUARTZ > 90% QUARTZ > 85% QUARTZ > 90% CONTENT

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