JOIDES Resolution
@TheJR
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I’m a legendary research ship that drills core samples from under the seafloor for #IODP , providing new insights into Earth's history and dynamics.
facebook.com/joidesresolution
Joined December 2008
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Our scientists love sediment. And this morning it appeared the sediment loved them back!
📷
@JasminMLink
#Exp397
#NSFFunded
#paleoclimate
#IberianMargin
#iodp
#ScientificOceanDrilling
15
209
1K
#EXP392
hit the Cretaceous! In this core, drilled from ~425 meters below sea level, is a dark layer--the Cretaceous–Paleogene (K–Pg) boundary, a mass extinction event of 66 million years ago, when 3/4 of all plant and animal species-including dinosaurs, were wiped out.
#NSFfunded
8
119
598
We sailed thousands of kilometers... drilled hundreds of meters into the seafloor... and we finally have it, what
#Exp391
came for... HARD ROCK!
Here are some of our very first samples of basaltic lava flows from the Walvis Ridge. Woohoo!
#geologyrocks
#oceanscience
#NSFfunded
4
44
283
We hit basalt!
Even more exciting was that the sediments, & entire core before the basalts, was a nannofossils, white ooze! Talk about a dramatic transition from those green muds! Here's Doug modelling the basalt/sediment interface for you all
#Exp395C
#IODP
#JRSO
@NSF
#NSFfunded
6
21
216
Miniaturized popcorn🍿
Our oceans are the largest & most productive habitats on our planet!
📸
#Foraminifera
shells, which are continuously dying & accumulating on the seafloor. They remain preserved as fossils in the cores we recover & each one is a window into our past
#Exp395C
1
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Would you like a template to do a miniature
#JOIDESResolution
like this one?? If this tweet reaches 100 likes you can have the link!!
4
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Deep into the basalts....we suddenly hit a large sediment layer, indicating that there was a long gap between eruptions🌋🚫
It is now up to our
#Exp395
scientists to use these cores to understand exactly what happened & what were the implications.
#IODP
#Exp395C
#NSFfunded
5
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184
We’re getting really excited about these serpentinized harzburgites! We passed the 1000 meter mark this week, surpassing the previous record of 200 meters for the deepest mantle rock ever recovered.
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And we are off! Expedition 399 is on its way to the Lost City Hydrothermal Field. We are excited to highlight the science, crew, and scientists behind this expedition over the next two months with you!
#Exp399
#Astrobiology
#Science
#TheJR
5
20
159
Yep, pretty cool,
#EXP378
is the first with the four primary leadership roles within the ship party and labs filled by women and in our science party 21 out of 32 are women 👩🔬
#sciencerolemodels
#paleoclimate
#womeninstem
IODP expedition 378 is the first to have an all women leadership team: co chiefs, staff scientist, lab officer. It’s pretty spectacular! Day 1 and we’re digging into our scientific objectives: a new continuous record of Earth’s climate from the Cretaceous-Oligocene
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Exciting news! NSF has asked the U.S. scientific ocean drilling community to come together and develop Science Mission Requirements for a new drilling vessel. Please take the survey that will be the first step in developing scientific priorities for the new vessel. [1/2]
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Our turn! You've heard of Elf on a Shelf, but do you know about...?
📷 Lam & Leckie 2020 (via mikrotax)
#elfonashelf
#foraminifera
#fossil
#marinescience
#micropaleontology
#NSFfunded
6
21
140
Our microbiologists have been hard at work determining the evidence of life deep under the sea floor. On 45, we reached a depth of 1180 meters into a peridotite-dominated system. With each core, microbiologists and petrologists negotiate which cores are used for microbio samples
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The US Science Support Program is deeply disappointed by NSF’s decision not to extend JR operations past 2024. The ship has made invaluable contributions to science and generations of researchers. We gratefully acknowledge the community’s efforts in working toward an extension.
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It's amazing to see the stories that sediments can tell. These cores reveal a record of millions of years of time in the tiniest fraction of the seafloor. Shells, worm tubes and burrows, bottom currents, volcaniclastic flows... it's a
#geologist
's dream come true!
#NSFfunded
2
23
133
😮Currently marveling at the transitions in these freshly split sedimentary cores! Yet, we still need to run them through the tracks & collect more data to even begin to comprehended the amazing stories this record must hold about our planet!
#IODP
#Exp395C
#JRSO
#NSFfunded
@NSF
2
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128
Which movie is better: The Core, Tremors, Geostorm or Megafault?
We asked the geologists aboard Expedition 401 what their favorite geology movies are! It turns out geologists can appreciate a bad disaster movie too.
#IODP
#NSFFunded
#EXP401
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32
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Not quite
#rock
but not quite
#sediment
.
These cores are compacted
#layers
of
#salt
that was left behind when the
#Mediterranean
suffered an extremely dry period. The left side is red because iron oxides are present.
#EXP402
#scientificoceandrilling
#minerals
#geosciences
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122
With finds like these in core from just one location, we can't help but wonder... what other amazing things are hidden down there?
#geology
#geologyrocks
#NSFfunded
5
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121
📣Are you an undergraduate or do you know one who would like to sail on the JR?🚢 Want to transit from Greece to Spain (Feb 2023)? ✍️Apply to the JR Academy now!! Please retweet!
@sacnas
@GeoLatinas
@BlkinGeoscience
#STEMeducation
#scienceiscool
0
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Congratulations to
#Exp391
observer and newly appointed DOCTOR Mbili Tshiningayamwe!!! Dr. Tshiningayamwe recently completed his
#PhD
at
@WitsUniversity
is now our newest doctor on board. We are lucky to have him!
#NSFfunded
4
16
119
Celebrating
#WomenHistoryMonth
with Marie Tharp: geologist and oceanographic cartographer whose work led to acceptance of the theories of plate tectonics and continental drift.
#EXP375
#NSFFunded
#IODP
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Have you ever tried to put a 289ft long jumbo straw into a glass coke bottle from the top of a 24 story building?? No?? That is similar to what we just did on the JR! A 10" bit was put into a 13" hole at a depth of ~1.3 miles!
#Exp395
#IODP
#Siemoffshore
2
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114
Is it sedimentary or is it igneous? Yes. Meet lapillistone, formed by the accumulation of fine-grained volcanic material on the seafloor. The striking green color is the result of sea water interacting with volcanic glass after the eruption.
#EXP397T
#geology
#volcano
#NSFfunded
1
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114
We stay away from the JR Moon Pool during stormy conditions and here's why!
#Exp383
#AntarctcCircumpolarCurrent
#DYNAPACC
#OceanScience
#ClimateScience
#NSFGEO
#STEM
#IODP
0
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This
#WHM
we celebrate the many women who have made
#ScientificOceanDrilling
possible. Women sailed for the first time on DSDP Leg 2, but it wasn't until X357 in 2015 that IODP had a majority-female science party. We are proud of those paving the way!
#WomenInSTEM
#NSFfunded
3
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113
The drilling has begun! Follow this thread to learn the *hole* story of a core, from the rig floor to the lab.
#NSFfunded
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This is big news, people: NSF has accepted an offer from Columbia University (
@Columbia
), on behalf of the Lamont-Doherty Earth Observatory (
@LamontEarth
), to assume ownership of the global class marine research vessel Marcus G. Langseth. [1/5]
@UNOLS
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🌊🚢 Sailing through a challenging gale en route to Iceland! Significant wave height is expected to be 6.9 meters. Final reports & lab cleanups are proceeding, but we can't get enough. What an incredible display of the power of nature! 🌬️
#IODP
#NSFFunded
#EXP400
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Vesicular basalt forms when
#lava
cools quickly enough that gas bubbles in the melt are trapped and frozen in place. Sometimes the holes remain empty, but sometimes secondary
#minerals
can crystallize in the void.
#geology
#geologyrocks
#volcano
#NSFfunded
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Before we could retrieve core, our
#EXP382
rig crew had to lower the drill string. And watching them put it together is oddly satisfying!
#IcebergAlley
@NSF_GEO
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Rainbow bright, we pulled this beautiful core from over 900m below the surface of the Gardar Drift. It has something for everyone on the team.
#Exp395
#IODP
#coretherainbow
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Mother Earth recently shared her love with us with this beautiful plagioclase heart, seen in a thin section of our basement material.
#EXP390
#NSFfunded
#HappyMothersDay
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Feeling cute, might discover some groundbreaking science later.
#feelingcute
#science
(📷: Peter Betlem)
#Exp396
#IODP
#JRSO
#NSFFunded
@NSF
#drones
#shiplife
#oceanography
0
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Fossils are common in deep sea sediments & are used for dating & environmental interpretations.
But sometimes they are replaced with other minerals, like pyrite 📸 here👇
By studying the chemistry & shape of these alterations, tells us clues of their deposition & burial
#Exp395C
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As we drill deeper into sediments toward volcanic
#rock
, we see the interaction between the two environments: volcaniclastic glass reworked into sediments and altered over time. Beautiful!
#geology
#NSFfunded
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We just witnessed a spectacular burning
#Moonset
as we wrapped up operations at Site U1559,
#Exp390C
, and begun our week long transit to Cape Town.
#SouthAtlanticTransect
#IODP
#JRSO
#NSFfunded
@NSF
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HERE WE GO!! ⛴ We left port this morning and said goodbye to ☀️San Diego. We’re now headed south to 🇲🇽Mexican waters🌊 for
#EXP385
@NSF_GEO
#NSFFunded
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Here is a tweet to excite our upcoming
#Foraminifera
specialist for
#Exp390
#Exp393
! Your cores are a paleontologist's wonderland and we can't wait to get you your samples so you can tell us their stories 🙌🥳👏
#Exp390C
#IODP
#JRSO
#NSFfunded
@NSF
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You asked for it, and it's here! As we drill deeper into one of the undersea
#volcanoes
that make up Walvis Ridge, we see new patterns indicative of multiple lava flows, including PILLOW BASALTS. This distinct feature is unique to underwater volcanism.
#geologyrocks
#NSFfunded
1
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Bernie and his mittens are prepared to weather any storm, even the rough seas the JOIDES Resolution encounters in the Southern Ocean.
#BerniesMittens
#IODP
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End of a core piece view: one side covered with green clay and the other side with orange hydrothermal alteration halos in basalts from Hole U1583F.
Kind of looks like an ocean horizon.
📸Michelle Harris
#EXP393
#NSFfunded
#geology
#colors
#ScientificOceanDrilling
3
14
94
The last cores of
#EXP392
contain the very first fresh glass to be recovered from the Agulhas Plateau! Igneous petrologist Joerg Geldmacher will sleep easier now that we’ve got pillow basalt on board, especially since its glass margins are downright dreamy.
#NSFFunded
3
14
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CORE ON DECK!!! We have it folks, the first core of
#Exp391
. A beautiful white
#ooze
from the top of the sea floor. Stay tuned to learn the ins and outs of the core recovery process!
#IODP
#scienceatsea
#NSFfunded
3
11
95
When sediment cores are cut into section halves, the archive half has to be delicately scraped to clean the surface for visual observation.
📸Tessa Peixoto/IODP
#EXP393
#NSFfunded
#sediment
1
8
94
Amazing jobs from the
#siemoffshore
driller and DP operator! They made reentering the drill string into this funnel 2.2 km under the sea surface look like a piece of cake.
#Exp395
#JRSO
#cantwaitforcore
3
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90
The left core has more organic rich matter, referred to as Sapropel, which is known for its darker
#color
.
The right core encountered a mass transport event, where the
#sediment
layers were churned up, possibly due to an
#underwater
landslide.
#EXP402
#geosciences
#science
2
17
90
Today, we celebrate a retirement on
@theJR
! Join us as we thank our first RCB coring bit for its 61 hours of service on Hole U1556B. A replacement for the bit has already been identified and will begin its employment immediately.
#EXP390
#NSFfunded
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10
87
We have arrived at the Lost City Hydrothermal field and tripping pipe has begun! Exciting first day so more updates to follow over the day.
#theJR
#Exp399
#astrobiology
#science
1
11
87
#EXP400
scientists see 👀 signs of an unusual mineral in recent cores.
#Ikaite
! CaCO3·6H2O 🔬 Named after Ika (now Ikka) Fjord,
#SWGreenland
, it forms at ~freezing 🥶temps & transforms at higher T's to the more stable mineral, calcite, CaCO3. 🌎
#IODP
#minerals
#pseudomorphs
0
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Did you know it's possible to cut a
#rock
so thin that light shines through it? These thin sections tell scientists which
#minerals
are in
#EXP397T
samples, allowing them to better understand the
#lava
that formed Walvis Ridge
#volcanoes
.
📷 EXP397T Scientists / IODP
#NSFfunded
1
18
87
In honor of the upcoming
#AGU22
, what is your best advice for newcomers on navigating such a big
#conference
? How do you pick the talks you go to and the posters you visit? How do you maximize your time?
@theAGU
#WednesdayWisdom
#NSFfunded
📷 American Geophysical Union
21
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84
(1/6) It’s
#FollowFriday
! Can you help us get to 10,000 followers? Show NSF how important the JOIDES Resolution is to science by sharing us with your network. And if they want to know what’s in it for them...?
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It may sound nitpicky, but grayish white is not whitish gray. Fine distinctions are important when describing core samples, and consistency is key.
#EXP392
sedimentologists Shannon Haynes and Pratyusha Chanda use Munsell soil-color charts to assign a # to each color.
#NSFfunded
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8
87
Usually we find
#fossils
in the
#sediment
cores but they are microfossils and nanofossils where we need to use high resolution microscope to see them. We don't need a
#microscope
for this one!
Possibly a
#species
of pteropod but further
#identification
is needed.
#EXP402
#IODP
3
10
87
Expedition 401 is looking back millions of years to when the Mediterranean looked very different than today!
From getting cut off from the Atlantic to forming a 1,000-meter-thick salt giant, this period significantly impacted the world's oceans.
#NSFFunded
#IODP
#EXP401
3
23
86
And we’re off! Goodbye, Port of Cape Town. Hello transit to the first site of
#Exp391
! And so begins
#lifeatsea
. Can’t wait to get our first
#core
!
#IODP
#NSFfunded
2
11
86
Radiolarians are single-celled animal-like plankton that produce skeletons made of glass. These intricate structures take diverse forms, like these ones here!
Photos by Ivan Hernandez-Almeida, paleontologist on
#EXP382
to
#IcebergAlley
@NSF_Geo
2
28
84
Yesterday was
@OceAnnSediment
’s birthday. She spent the day making cakes! Squeeze cakes are what you get after you squeeze the water out of a slice of core so you can analyze the chemical composition of that water.
#EXP378
#paleoclimate
#geochemistry
Happy Birthday Ann 🎉🙂
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86
Celebrating 50 Years of Ocean Drilling 1968-2018!!!
#EXP372
is the lucky first expedition to ring in this special new year for
@TheJR
,
#geosciences
, &
#scientificoceandrilling
...Wishing for many great years of
#geology
&
#research
to come! 🙂
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83
Peperites form when
#lava
comes into contact with wet
#sediment
. In these samples you can see where the weight of the molten
#rock
deformed the underlying sediments as it flowed over and sank into them.
#geology
#geologyrocks
#NSFfunded
2
25
85
Our two co-chiefs Ulla and Debbie are pretty excited for the impending cast off! An expedition more than 16 years in the making is about to set sail 😀🛳
#EXP378
#paleoclimate
3
6
84
Calling all prospective Onboard Outreach Officers and lovers of science education / communication! We have released a call for three expeditions. Join us for the adventure of a lifetime!
#IODP
#scicomm
@AGU_SciComm
3
32
85
We have a vein of calcite in this basalt sample! This crystalline mineral is made of the same stuff that sea shells are, and this rock sample's chemistry might have clues for how the mantle and seawater interact over time.
🐚🌋🌊
#Exp395C
#IODP
#JRSO
#NSFfunded
@NSF
2
16
83
The JR, as seen from
#Santorini
! Thank you to our friends on the islands for these lovely pictures! 🇬🇷
#NSFFunded
#lifeatsea
#welovegreece
2
10
83
As the sun sets on our first full month at sea, marking the halfway point of
#exp392
, it does not disappoint. It never does. . . .
#NSFfunded
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84