Jennifer Saltzman's blog

Farewell to Expedition 334


CRISP is ending in the flurry that was predicted from the beginning. Coring until the last possible minute. Hole B at U1381 was punched at 4 or so this morning as the labs are being cleaned and the hard rock describers are finishing the last cores. In Hole A, there was no recovery of the top 30 m of sediment and we didn’t have temperature measurements. The geochemists

Meauring weight at sea

Place the material on the scale and you get a measurement. Right? Not when you are on a moving ship. The acceleration and deceleration on a moving ship means that it is not a simple procedure to weigh something for science. 

Basement Rocks from the Cocos Ridge

Today is the second of the basement sampling party. No this is not like a sale in the basement of Filene’s. This is expensive ignenous rock that we hope will tell us many things.

Final Live Broadcast


In addition to writing blogs, I’ve been talking with students and teachers in California. Live broadcasts using Skype. I really love teaching. I love sharing what I know about the world and helping people understand. Here on the JR, I get to ask as many questions as I want and then share what I understand with students. Everyone here has an expertise and that is w

Third Site: Reports are due

IOPD has more reports and report structures than I’ve every seen. I’ve worked for the Navy and closely with another federal agency. But this just tops the cake. 

Trial #37: maximum creativity and minimum limitations

I forgot about this stage of science when I wrote about the monotony of data collection. A few of my shipmates agree that this stage may also be very time consuming, with the potential for fun. This is the testing stage.

Rainy Day at Sea

The count down is on. Only 7 full days left. We will be back in port on April 13. Time to say goodbye to the waters of Costa Rica, the muddy sediments, and 12 hour shifts. The scientists will be leaving with lots and lots of data and samples to process.

Sample #358 Today

A crucial part of science is data collection. Repetition, duplication, same old thing, time after time after time. On the JR, everyone has their job and they do it for 12 hours. It can really get old doing the same old thing when processing 1 km of rock core.

Sampling in the Core Lab


Once the core has been cut into sections on the catwalk, it is brought into the core lab. The first order of business is letting it warm up.  This rack holds the cores as they warm. After a few hours, it is run through several machines that measure its physical properties, including a thermal conductivity measurement (sensor is placed into the core in the black insulating tube. Then the fun begins (at least for me).


Ladders (or stairs to us landlubbers)

On the first day at the ship, we stayed in port at the pier. I took some pictures of the JR while on the pier of angles that I knew I wouldn’t see while sailing. This spiral staircase leads up to an area where the drilling operations take place. 

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