Geothermal energy development
Aug 23, 2010 8:00:00 PM - aussieindolanka.com
Sri Lanka has 10 known hot springs located on a stretch between Mahapelessa in the South and Mulaitivu on the island’s North East. The temperatures of these springs at the earth’s surface range from 42 to 62C
The temperatures of hot springs are known to be much higher at greater depths. The reason for the occurrence of hot springs can be due to normal heat flow
within the earth or due to the presence of Hot Dry Rock (HDR). A hot dry rock is created when hot magama from the interior of the earth intrudes into the earth’s outer layer, also known as the crust. If the event is generally less than 500 million years old, it will still be anomalously hot due to the decay of radioactive material within.