This is an archive of AGU's GeoSpace blog through 1 July 2020. New content about AGU research can be found on Eos and the AGU newsroom.

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25 March 2015

On the JOIDES Resolution: Turbidite Transport (+ video)

On this expedition, we’re studying sediments that have been eroded from the Himalayas, the highest mountain range in the world. The Ganges and Brahmaputra rivers carry this sediment to the delta in Bangladesh, but what happens next? How does this material get all the way out to the middle of the Bay of Bengal where we’re drilling, almost 2,000 kilometers (1,243 miles) away?


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13 March 2015

Source to Sink (+ video)

Why are we studying the mountains by drilling into the seafloor?


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25 February 2015

Drilling deep

We’re in the Indian Ocean currently drilling the deepest of a six hole transect across the middle of the Bengal submarine fan. The fan covers the bottom of the Bay of Bengal with sediments eroded from the Himalayas. We’ll be devoting almost three weeks of our eight-week International Ocean Discovery Program expedition to drilling at this site. Our target: to reach 1,500 meters (about a mile) depth. Drilling this deep is a major challenge when you are drilling into the seafloor, which just so happens to be more than 3,600 meters (about two miles) below sea level.

But why so deep? And why here?


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5 February 2015

Shoving Off

This is the first in a series of dispatches from Lisa Strong, a video producer and education officer aboard the JOIDES Resolution, a scientific ocean drilling ship currently on a two-month research expedition in the Bay of Bengal.


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