Saturday, 16 February 2019

Trinidad culture and Tectonic investigations


Hey guys! Today we started off with a cultural home run, visiting the temple of Hanuman the protector and then the Temple in the Sea where active cremations were occuring! After which we had a tour of the industrial area of Point-A-Pierre where a major refinery is located.


The Paria basin is to the west of the Temple of the Sea and is curentlying causing the north west of Trinidad to sink into the sea at approximately 2 mm per year. This can have huge impacts for the country, as most of it is below sea level.


After our drive through the industrial complex, we continued our journey south towards the Central Range Fault. In order to explore John Webers theory that this is a creeping fault, we set out to see traces of right dextral movement along the Southern Main Road. Unfortunately, we didn't find signs of creep, but we did find some delicious roti!

Following lunch, we set out to our next stop, the mud volcanoes! However, this wasn't our main reason for visiting. At up to 7km of depth, clays experience overpressure which force the fluids up and out in the form of mud volcanoes. Due to the salinity of the this fluid, the tassics remained unvegetated creating a flat top topography that is easily identifiable. 


Although the mud field had dried substantially, we saw evidence of more recent small ejections. These could potentially be related to the creeping fault squeezing out more fluids, but more accurate GPS measurements would be needed. We look forward to what tomorrow has in store for us!

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