4 weeks 3 days
I am the Blogfish. I will be your tour guide during the JOIDES Resolution’s expedition 335 (I was also the tour guide for expedition 330). I will introduce you to the science of the expedition and the scientists who are trying to learn more about the ocean crust. (Written by Kevin Kurtz).
JR junior's blog
Submitted by JR junior on Fri, 06/03/2011 - 13:30
The JOIDES Resolution has left the Superfast hole and come back to port and this expedition is just about finished. While drilling, we went deep into the ocean floor, and got that much closer to the Moho, the boundary between the mantle and the crust.
Submitted by JR junior on Tue, 05/31/2011 - 08:16
When the Superfast science party ages the rocks in the cores from this expedition, they will do so with zircons. Zircon sounds like the name of an evil Martian tyrant in a 1950’s science fiction movie, but it is actually a mineral that can form within an igneous rock when magma first cools into rock.
Submitted by JR junior on Fri, 05/27/2011 - 12:46
To figure out the spreading rates of various places in the seafloor, scientists compare the ages of rock samples taken from those places. It is not easy to figure out how old a rock is. They do not have growth rings like a tree nor do they have bruises caused by their aunt Barbara pinching them to grow an inch every time they have a birthday.
Submitted by JR junior on Tue, 05/24/2011 - 15:40
Submitted by JR junior on Mon, 05/23/2011 - 13:39
Jeremy Deans is a structural geologist who is on board the JOIDES Resolution right now as part of the Superfast expedition science party. To find out why he rules, read on.
Submitted by JR junior on Mon, 05/16/2011 - 17:56
Last time, I explained that one reason the crust we are drilling in is called “superfast” is because, at a spreading rate of 20 cm a year, it spread much quicker than most seafloors spread. Still, it probably sounds weird to call something superfast that every snail on Earth can outrun.
Submitted by JR junior on Fri, 05/13/2011 - 13:44
The seafloor we are drilling right now formed at a superfast rate, even though it would seem superslow to us. To find out how something that seems to be superslow can be superfast, read on.
Submitted by JR junior on Mon, 05/09/2011 - 16:08
In all the movies titled The Blob, the Blob continues to grow and spread, covering more and more area, like it might to cover the entire world, which sounds kind of like seafloor spreading.
Submitted by JR junior on Fri, 05/06/2011 - 12:22
The seafloor is spreading! The seafloor is spreading! To find out what this means, read on.
Submitted by JR junior on Mon, 05/02/2011 - 15:21
The JOIDES Resolution is currently drilling in a hole that has already been drilled during three previous expeditions.