Tuesday, 30 June 2015

Coral Fossil 

This core was extracted about 8m below ground level beneath Bintulu Old Airport. How old can you guess this fossil? 
In another words, Bintulu town at one time had sea level about 5m to 6m below present level, so when was that ? Ten thousand years ago or twenty thousand years ago? 
Unfortunately, here we do not have cheap testing facility to date the fossil, otherwise I can estimate the age of the sea level at that time. But obviously, it was during later stage of ice age when a lot of sea water still locked in the ice.

Ice age seems to be nothing to do with our country's (tropical) soils, but actually it influenced through climate  change and created present soil conditions with the increase of rain water, rise and fall of sea level, rate of weathering and deposition plus diversity of lives. 

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