The JR is now on Expedition 355: Arabian Sea Monsoon, where it is exploring the interaction between the Himalayas and Tibetan plateau uplift, and the development and evolution of the Indian summer monsoon. The expedition is drilling four sites in the eastern Arabian Sea to better understand the relationships of mountain building, weathering, erosion and climate change.
Now that we have drilled down to the depths that we need before setting casing and drilling a very deep hole all the way to the basement we have decided to stop and measure downhole geophysical logs. This is a method in which sensors are deployed down the borehole to record different aspects of the physical properties< of rocks.
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