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Blog Posts Tagged "sediments"
Submitted by Sabreena Kasbati on Mon, 09/13/2010 - 01:27
Sediment! What's it made of?
Submitted by Helder Pereira on Tue, 11/29/2011 - 13:11
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.
Submitted by Tom Lang on Thu, 08/06/2015 - 05:10
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.
Submitted by Tom Lang on Fri, 08/07/2015 - 04:08
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!
Submitted by Tom Lang on Tue, 08/11/2015 - 04:14
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.
Submitted by Michelle Darrieu on Sat, 10/24/2015 - 11:14
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.