user avatar
U.S. Scientific Ocean Drilling
@US_SciOD
Advancing Earth science using ocean drilling | Account managed by the U.S. Scientific Ocean Drilling Coordination Office (SODCO)
linktr.ee/us_sciod
Joined December 2008
1,267
Following
11.3K
Followers
Posts
  • Pinned
    user avatar
    U.S. Scientific Ocean Drilling
    @US_SciOD
    Feb 3
    We have a new name! The JOIDES Resolution account is now called U.S. Scientific Ocean Drilling (@US_SciOD). We are here to support and amplify all the work that goes into advancing earth science through ocean drilling. Please get in touch with any questions or ideas!
    769
  • user avatar
    U.S. Scientific Ocean Drilling
    @US_SciOD
    Oct 18, 2022
    Our scientists love sediment. And this morning it appeared the sediment loved them back! 📷 @JasminMLink #Exp397 #NSFFunded #paleoclimate #IberianMargin #iodp #ScientificOceanDrilling
  • user avatar
    U.S. Scientific Ocean Drilling
    @US_SciOD
    Feb 20, 2022
    #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
  • user avatar
    U.S. Scientific Ocean Drilling
    @US_SciOD
    Jan 3, 2022
    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
  • user avatar
    U.S. Scientific Ocean Drilling
    @US_SciOD
    Jul 20, 2023
    Cores from our site off Greenland are over 15 million years old, long enough for the calcite in and around this foraminifera to recrystallize and form a protruding crystalline calcite nodule. This image was taken with a scanning electron microscope onboard the JR. #Exp395 #IODP
    This foraminifera looks like 2 flattened golfballs fused together it has a multi-faceted crystalline shape protruding from the middle.
    26K
  • user avatar
    U.S. Scientific Ocean Drilling
    @US_SciOD
    Jun 27, 2021
    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
  • user avatar
    U.S. Scientific Ocean Drilling
    @US_SciOD
    Jul 25, 2021
    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
  • user avatar
    U.S. Scientific Ocean Drilling
    @US_SciOD
    Aug 5, 2023
    After cooling, this basalt cracked and calcite crystals formed within the space. It then cracked again and formed more crystals. These formed more slowly, so are larger than the originals. #Exp395 #IODP
    A grey rock is cut down the middle with a band of white crystals. It is being held by fingers in blue gloves.
    11K
  • user avatar
    U.S. Scientific Ocean Drilling
    @US_SciOD
    Oct 9, 2019
    Would you like a template to do a miniature #JOIDESResolution like this one?? If this tweet reaches 100 likes you can have the link!!
  • user avatar
    U.S. Scientific Ocean Drilling
    @US_SciOD
    Jul 17, 2021
    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
  • user avatar
    U.S. Scientific Ocean Drilling
    @US_SciOD
    Jul 17, 2023
    The food in this place is AMAZING! This fossilzed benthic foraminifera (Melonis) got caught chowing down on two diatoms, seen on the edge of its aperture. These organisms can indicate paleoecology and paleoenvironment. #Exp395 #IODP #mouthful
    A white egg-shaped organism with small round holes throughout has a horizontal opening across the middle in which two flat circular perforated white objects reside.
    13K
  • user avatar
    U.S. Scientific Ocean Drilling
    @US_SciOD
    Jun 15, 2021
    The world's largest waterfall is underwater in the Denmark Strait! If we can figure out how quickly sediment piles up here, we can also understand how these currents have changed over the last 35 million years. 📷: @NOAA #TheJR #Exp395C #JRSO #IODP #NSFfunded @NSF
  • user avatar
    U.S. Scientific Ocean Drilling
    @US_SciOD
    May 23, 2023
    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.
    12K
  • user avatar
    U.S. Scientific Ocean Drilling
    @US_SciOD
    Apr 15, 2023
    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
    00:00
    25K