Describing the Cores

Good morning or evening or whatever time it happens to be for you! I am sitting on the core table where the cores are laid out after they have been split lengthwise in a nearby room. This allows the scientists to observe what the sediments look like. They carefully look over the core sections and describe them in detail.

Have We Found Anything Yet?

Have we found anything yet? We sure have! One of the sediment cores contained a manganese nodule that was mixed in with the dark brown sediments. As you can see, the sediments contain a lot of water and the ruler provides a scale for determining size. Manganese nodules form on the seafloor by a very slow precipitation process.

Look Who Came to Dinner!

We had some uninvited guests today! Actually, these white-tipped sharks have been hanging around for the past several days but today they seem to have brought their friends. It has forced many of us to have to choose between looking at cores or looking at sharks!!

Core Liners


J.R. here! I thought that today we would take a look at what the drilling crew uses to collect the seafloor samples. A 10 meter long, piece of clear plastic tube is sent down inside the drill string to the bottom of the hole.

Day 2 at Site 1

We are stilling drilling the first hole. So far 13 cores have been retrieved and we have drilled to a depth of 52.8 meters beneath the seafloor. Starting with core 5, drilling has been slowed due to hitting a layer of chert. The cores have not been complete due to this. The photo shows you what we are getting, the chert fragments are about .5 inches in diameter.

The First Drill Core Has Arrived!


Early this morning the first core filled with seafloor sediments was pulled up on the ship's deck! The sediments within the clear plastic tube appeared to be very wet and brown in color. The 10 meter long core was quickly cut into smaller pieces, each 1.5 meters in length.

Core on Deck!!!


Talk about exciting! The first core of hole U1365 was brought up on deck at 6:30 a.m. about 7 hours later than originally expected, but that is what happens in real science. Many of the scientists and other crew members were out on the deck bright and early to view the activites. The core was quickly measured into 1.5 m lengths, cut, capped, and labeled.

Happy Birthday!!


Today we had a birthday party for Kristin Hillis who is the Underway Lab Core Tech on board. We all enjoyed cake, whistles, toys, etc. as we sang Happy Birthday. Kristin's mom was good enough to send party supplies so that Jamie could get the party underway. That a way Jamie! Life is never dull out at sea.

We Have Reached the First Location!

Arriving at First Site


The big day has arrived!! We have reached the first drilling site. The crew has been tripping drill pipe since a little after midnight and they were still at it at sunrise. Early this morning the scientists went through a short training session on how to log (record) the core data into the computer database. This is extremely important so that cores do not get mixed up.

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