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Alex B

All Hands on Core | JOIDES Resolution - Ocean Drilling Research Vessel - 11 views

joidesresolution.org/896

vessel tour research scientist jr sample ocean all hands core samples 317 sea

shared by Alex B on 19 Nov 09 - Cached
  • First the core comes on to the catwalk and gets cut into sections and capped.
    • Patricia L
      Patricia L on 21 Nov 09
       
      This is what I found out. First, the core gets cut into sections and capped. Next, it gets labeled with an engraving of a number on the plastic tube around the core. Then, the core has to warm up by sitting on a rack for about 4 hours. The cores has to be at room temperature when being tested. The 1st test measures density and magnetic capability. The 2nd test is all about thermal conductivity. This means they are testing how easily heat travels through the core. After these 2 tests is when it is finally cut. The machine used to do this has a wire and a track that pulls the wire through the core.
  • gets labeled and gets a number engraved on the core liner (the plastic tube around the core). 
  • Marsha Ratzel on 19 Nov 09
     
    This page shows me all the steps the scientists use to prepare the cores for examination. I wonder how long this takes?
  • ...2 more comments...
  • Nick C on 19 Nov 09
     
    I think the process in which they get the core piece ready to be experimented on is amazing! The tools that they use are very high tech and the description of the tools is very interesting!
  • Andrew W on 20 Nov 09
     
    That's so cool! I was wondering what would happen to the samples if they got cold on the way up the drill. Those gadgets sound and look neat/complicated. It must be nervous work. I also think it is smart how they save a piece of the core sample.
  • Jacob P on 20 Nov 09
     
    I think the sonic welder looks like a cool tool to use. It is interesting how they do all this and use these different tools. I think the tools and gadgets they use are interesting and would be fun to see.
  • Marsha Ratzel on 20 Nov 09
     
    Who can list the steps of processing the core that is described in this post? I started you off by finding the first two steps, highlighting them and putting a sticky that labels the steps. Follow this example and finish outlining the steps.
Reena B

JR Expedition 317: Canterbury Basin - 9 views

joidesresolution.org/811

jr 317

shared by Reena B on 15 Nov 09 - Cached
Alex B liked it
  • On Expedition 317, the scientists are investigating ancient changes in sea level.  In other words, how deep was the ocean in the past.
  • cores of ice from the antarctic.  These ice cores are like a frozen snapshot of the past, and tell the scientists things like how much oxygen was in the oceans and what different chemical wers present. 
  • look at the rock formations in an area
  • ...4 more annotations...
  • When scientists find rocks of a certain type, it tells them what the environment was when the rock was formed
  • This allows them to infer how deep the sea was at the time these rocks were formed. 
  • figure out how much of the change in sea level that we see in the rock record is caused by actual rise and fall of sea level (because of glaceiers freezing and melting), and how much of it is because the rocks got pushed up out of their ocean home. 
    • Marsha Ratzel
      Marsha Ratzel on 15 Nov 09
       
      Aren't these racks amazing...can you imagine all the scientific evidence they will collect over the course of this trip?
    • Grace B
      Grace B on 19 Nov 09
       
      I think it's amazing how all the different scientists on board can gather so much information about our history from the core samples.
    • Alex B
      Alex B on 24 Nov 09
       
      They seem to know they are going to get a lot of samples and they are prepared to gather a bunch of samples to figure out the history.
  • Marsha Ratzel on 15 Nov 09
     
    The JR's trip to the Canterbury Basin is to find evidence about how deep the ocean was in the past. They are examining sea levels.
  • ...4 more comments...
  • Marsha Ratzel on 15 Nov 09
     
    Great background information on what this expedition hopes to accomplish.
  • Nick C on 19 Nov 09
     
    Sound interesting, I can't wait for the outcome of this expedition! I wonder how much change has happened since the past to present.
  • Andrew W on 20 Nov 09
     
    Hi I made it! Not trying to point out the obvious, but that means since it is Expedition 317 that means there has been 317 expeditions! Wow, that's a lot.
  • Andrew W on 20 Nov 09
     
    Do you think that the oxygen is in the ice, like in frozen bubbles?
  • Marsha Ratzel on 20 Nov 09
     
    I think someone needs to find a map (better than the close up map they have on the website) and show where Canterbury Basin is located. We need to know where the island on the close up map is located..what body of water.
  • Jacob P on 23 Nov 09
     
    This trip must be important to them.
Marsha Ratzel

Drilling into the unknown (sand) | - 3 views

joidesresolution.org/900

sample core 317

shared by Marsha Ratzel on 22 Nov 09 - Cached
  • drilling, we are drilling
  • smear slides (a little bitty bit of sediment spread out thinly to look at under the transmitting light microscope), describing core, scanning core, sampling core, measuring core etc etc etc.
    • Marsha Ratzel
      Marsha Ratzel on 22 Nov 09
       
      Can you think of when you've felt like this...tired, frustrated and wanting to give up? Yet these scientists don't give up, then brainstorm ways to get around the problem and then try another solution. Do you think you might need to be like this to accomplish something difficult?
    • Grace B
      Grace B on 24 Nov 09
       
      Yes
  • Marsha Ratzel on 22 Nov 09
     
    Never give up is a great lesson that can be applied to many things...drilling for core samples included.
  • ...1 more comment...
  • Marsha Ratzel on 22 Nov 09
     
    Science isn't always immediate. It takes perserverance.
  • Reena B on 22 Nov 09
     
    This makes me laugh because when we were little and even now we were always told to keep trying and trying, and that's what their doing.
  • Jacob P on 23 Nov 09
     
    It would be good to perservere on the joides resolution, but it must be anoying to the scientists. I know if i know if i had to do that, i would jump of the ship instead of wait that long.
Marsha Ratzel

New Zealand Oil and Gas Exploration - 4 views

www.tagoil.com/...l-gas-exploration-overview.asp

shared by Marsha Ratzel on 21 Nov 09 - Cached
    • Marsha Ratzel
      Marsha Ratzel on 23 Nov 09
       
      Did you know that New Zealand had lots of oil? I sure didn't. What conditions make a place produce oil? Does anyone know?
    • Chetan P
      Chetan P on 23 Nov 09
       
      Isn't it where an ocean was millions of years ago under high pressure
  • Nick C on 23 Nov 09
     
    So the Canterbury Basin is in New Zealand? Hmmmmm...
  • Jacob P on 23 Nov 09
     
    I knew the cantabury basin was in new Zealand. My mom made me read every article last night. it took like fourty minutes.
Marsha Ratzel

I'm Helping | JOIDES Resolution - Ocean Drilling Research Vessel - 10 views

joidesresolution.org/881

geochemistry scientist

shared by Marsha Ratzel on 15 Nov 09 - Cached
  • mix the chemicals they use to do experiments on the cores
  • the geochemistry lab.  That is a lab where they learn what kind of things the rocks are made of
    • Patricia L
      Patricia L on 21 Nov 09
       
      The 1st set of cores is used to see detailed geochemistry, which is the science that works with the chemical changes in the matter of the Earth, and microbiology sampling.These scientists will be making lots of different measurements that tell about chemical processes going on in the sediment.
  • Marsha Ratzel on 15 Nov 09
     
    This gets me started understanding what geochemistry is and what kind of work a geochemist might do.
  • ...3 more comments...
  • Marsha Ratzel on 15 Nov 09
     
    Geochemistry..chemistry used to experiment with rocks.
  • Nick C on 19 Nov 09
     
    Geochemistry sounds interesting... I wonder what experiments that she has to do.
  • Marsha Ratzel on 19 Nov 09
     
    Nick, Can you find out what kinds of experiments they use from the website?
  • Alex B on 19 Nov 09
     
    I'd be interested to know what types of tests they conduct on the rock samples to determine what kind of rock it is and how old it is.
  • Marsha Ratzel on 23 Nov 09
     
    Patricia,
    You've done an excellent job documenting the steps of the geochemistry data collection. Do you wonder why the chemical processes are important for understanding the change in sea level? I'm wondering if it's because there are different kinds of life that live at different depths...when they die and fall to the bottom of the ocean, do their remains collectively pile up and cause chemical changes???
Marsha Ratzel

Canterbury Basin - 4 views

www.ig.utexas.edu/...canterbury.htm

canterbury basin 317

shared by Marsha Ratzel on 23 Nov 09 - Cached
  • exceptional location in which to gain such understanding. Large-scale basin-fill geometry is a response to an 80 million-year rise and fall in relative sea level controlled by regional plate tectonic evolution.
  • close to a strike-slip plate boundary
    • Marsha Ratzel
      Marsha Ratzel on 23 Nov 09
       
      The basin is the site of a transform boundary where the Pacific and the Australasian plates are slipping past each other. Because of this grinding, lots of little pieces of the plate (sediment) has formed here. Scientists can look at this sediment to draw conclusions about the rising and falling sea levels.
  • ...3 more annotations...
  • THE THICK sedimentary deposits beneath the world's continental shelves respond to one of the Earth's fundamental cyclic processes, the rise and fall of global sea level.
  • Sea level change is perhaps one of the earth's most societally relevant processes; rises expected in the next century will affect directly hundreds of millions of people.
    • Marsha Ratzel
      Marsha Ratzel on 23 Nov 09
       
      Why is this project something that we should do? As this paragraph says, millions of people will be impacted if the sea levels rise. This group is from Texas and Texas is bordered on one side by the Gulf of Mexico...can you imagine what will happen to all the people that live along the coast? And Texas is just one state...think about places like Boston, New York City, San Franscisco, Miami to name just a few.
  • Marsha Ratzel on 23 Nov 09
     
    Why the basin is important to understanding how the sea level has changed over millions of years.
  • Marsha Ratzel on 23 Nov 09
     
    This article is pretty technical but I think it gives you some background as to why they picked the Canterbury Basin. Hopefully the highlighted areas points you to the most important info and the sticky notes help you understand what it says. Ask me questions and I'll do my best...but I'm no geologist. I'm leearning along with you guys.
Marsha Ratzel

So What Happens Next? Core Sample - 7 views

joidesresolution.org/897

core jr sample samples 317

shared by Marsha Ratzel on 20 Nov 09 - Cached
  • Marsha Ratzel on 20 Nov 09
     
    Once we finish finding all the steps in the first blog post, then start finding the next steps in this post.
  • Nick C on 20 Nov 09
     
    So the team is separated into two parts, the Archive half which like writes down the research and outcomes of the experiments and then the working half which actually does the experiments and technichal things. The archive half also writes down everything about the core like the color, size, etc. They would put the extra core pieces in a container called the "D-Tube" which will be ready for storage.
Marsha Ratzel

Experiments on core samples - 2 views

joidesresolution.org/895

core sample jr

shared by Marsha Ratzel on 20 Nov 09 - Cached

  • The first 50m set of 5 cores is mainly to enable very detailed geochemistry and microbiology sampling. We in the chem. lab (Julius, Toshi, Maria, George, Yulia, Curly and I) will be kept extremely busy over the next few days. One set of measurement that I will be making very quickly are Salinity, pH and Alkalinity of porewaters (water squeezed from the sediments). These have to be made soon after core recovery because the chemistry changes quite rapidly once the core is cut. These measurements will tell us about chemical and microbial processes going on in these young, shallow sediments.

  • Marsha Ratzel on 20 Nov 09
     
    Short list of experiments on core samples
  • Marsha Ratzel on 20 Nov 09
     
    This gives a list of what they do with the core samples and when experiments have to be conducted.
Marsha Ratzel

Ocean Drilling Research Vessel - 3 views

joidesresolution.org/894

core sample samples

shared by Marsha Ratzel on 20 Nov 09 - Cached
  • Each core will provide samples to be used by different scientists for different purposes.  And that's not even counting the gas analyses and water analyses that are done on the fluids that come out of the core
  • Marsha Ratzel on 20 Nov 09
     
    Brief description of core experiments
Marsha Ratzel

JOIDES Resolution Physical properties Lab - 4 views

joidesresolution.org/875

physical properties lab scientist daily_life

shared by Marsha Ratzel on 15 Nov 09 - Cached
  • he physical properties lab.
  • All scientists “pull” a 12-hour work shift.  And there are no vacations on holidays or weekends.  Half of us work from noon to midnight, local time, while half work from midnight to noon
  • Marsha Ratzel on 15 Nov 09
     
    12-hour shifts seem like a long time to be at work. It's interesting to hear about what a scientist's life might be like if they work exploring things on a ship.
  • Marsha Ratzel on 15 Nov 09
     
    It will be interesting to find out what the physical properties lab does for the scientific mission.
  • Nick C on 19 Nov 09
     
    12 hour shifts do seem like a long time to be working and without any vacations or weekends At least they get to be discovering something new and exciting everyday!
Marsha Ratzel

YouTube - Cleaning and imaging cores with Beth - 3 views

www.youtube.com/watch

scientist core sample samples photos

shared by Marsha Ratzel on 19 Nov 09 - Cached
  • Marsha Ratzel on 19 Nov 09
     
    Clip demonstrating how a core sample is prepped to be photographed. Smooth surfaces are necessary to get a good pic....and the camera that is used is very specialized it seemed.
  • Marsha Ratzel on 19 Nov 09
     
    Brief look at how they prep the core samples once they are split into two halves. I thought it was amazing that they keep every single bit of the sample...did you see how they kept the stuff they cleaned off the knife?
Marsha Ratzel

YouTube - Meet Our Expedition 317 Educator - 0 views

www.youtube.com/watch

317 teacher at sea

shared by Marsha Ratzel on 19 Nov 09 - Cached
  • Marsha Ratzel on 19 Nov 09
     
    Joides Teacher at Sea. Intro to her and what she will be doing for kids during 317.
  • Marsha Ratzel on 19 Nov 09
     
    You all should get to know this teacher...maybe you can communicate with her when you have questions or need more info. She's a 7th grade teacher and could be a valuable resource.
Marsha Ratzel

YouTube - Tour of the Core... Deck - 0 views

www.youtube.com/watch

scientist jr core sample samples

shared by Marsha Ratzel on 19 Nov 09 - Cached
  • Marsha Ratzel on 19 Nov 09
     
    Nice tour of core deck onboard JR.
  • Marsha Ratzel on 19 Nov 09
     
    Lots of great shots that show you the equipment they use to examine the core samples from their drilling. I think you could get some fantastic vocab words from listening to this and then jotting down what words you thought sounded scientific.
Marsha Ratzel

YouTube - Core on Deck!:The Journey of how the Samples travel from the Rig Floor to the... - 0 views

www.youtube.com/watch

scientist core samples ocean sample

shared by Marsha Ratzel on 19 Nov 09 - Cached
  • Marsha Ratzel on 19 Nov 09
     
    Excellent video on how core samples come up from ocean floor and are prepared for use in the lab.
  • Marsha Ratzel on 19 Nov 09
     
    This will be a key video to view and then incorporate into your final project. Unfortunately, you'll have to look at it home because YouTube is blocked when you're at school.
Marsha Ratzel

Bringing in the Core - 6 views

www.youtube.com/watch

scientist core sample jr

shared by Marsha Ratzel on 18 Nov 09 - Cached
    • Marsha Ratzel
      Marsha Ratzel on 18 Nov 09
       
      Do you think the color of their slickers means anything...like is red one kind of lab and the green or blue another kind?
  • Marsha Ratzel on 18 Nov 09
     
    It's amazing to see how scientists handle core samples once they are in the lab. I also thought it was interesting how cold it must be since everyone is bundled up and wear warm gear.
  • Marsha Ratzel on 18 Nov 09
     
    Isn't it amazing to see how they bring samples of the core into the lab?
Marsha Ratzel

Sea and Swell | JOIDES Resolution - Ocean Drilling Research Vessel - 2 views

joidesresolution.org/882

ocean motion jr photos wave energy

shared by Marsha Ratzel on 15 Nov 09 - Cached
  • I have been trying to photograph “sea” and “swell”
  • his is a term describing the chaotic mixture of sizes and directions of wave energy that occurs beneath the winds that are generating them.
  • Swell is the longer wavelength waves that were generated far away.
  • ...1 more annotation...
  • broad sinusoidal waves that approach the ship and generate most of our pitch (forward and aft motion) and roll (side to side motion).
  • Marsha Ratzel on 15 Nov 09
     
    Studying wave energy using photographs would be very challenging.
  • Marsha Ratzel on 15 Nov 09
     
    Mix of size and direction of wave energy.
Marsha Ratzel

Greetings! | JOIDES Resolution - Ocean Drilling Research Vessel - 5 views

joidesresolution.org/883

micropaleontologist fossils microfossils scientist

shared by Marsha Ratzel on 15 Nov 09 - Cached
  • micropaleontologist (I study very small fossils)
  • Marsha Ratzel on 15 Nov 09
     
    Dr. Blair tells us what a micropalentologist is and what they will be using as evidence.
  • Marsha Ratzel on 15 Nov 09
     
    Imagine using fossils of ancient algae to determine the age of the rock!
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