Blog Posts Tagged "sediments"

What's at the Bottom of the Ocean?

Sediment!  What's it made of?

Drilling soft sediments = Hard work at the Core Lab

As we prepare to leave Site U1385 (SHACK-04) behind the scientists and the technical staff have been working hard to process all the cores that have been collected here. At this site were drilled four holes to a total depth of ~150 m, which was the depth objective of the site.

Excitement in the Magnetic Field

Meet the expedition's palaeomagnetists, Millie and Daniel. They're looking pretty positive, but they have had a VERY slow expedition so far. That all ends today.

Even Empty Cores Have Silver Linings

We've finished drilling at site U1459A, and it was certainly a challenge. It didn't have the chunky fragments like U1458 (the first drill site), instead the sediment switches unpredictably between rock-hard carbonate layers, and soft sediment, making consistent coring incredibly difficult. But we're learning from our struggles!

From site U1459C we have a core that shouldn't be


Sometimes when we’re trying to get a core, we end up with  just an empty liner. We expect that to happen. What we don't expect is getting a core when we aren't even trying! This happened on Hole C, and left even our experienced geologists a bit baffled.

Exp359. 24th Oct. Why are they looking for fossils ?!

When they have a core of deep sea sediments , the scientists have to make an age determination.

How might they determine sample's age?

There are a lot of microfossils in oceanic sediments and they provide a basis for age determination. The paleontologists studying sedimentary sequences  have established first appearences and extinction of species through time.