First “Core on Deck” of Expedition 391 is pulled from the core barrel. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_111]

Doug Cummings (Publications Specialist, IODP JRSO) watches the rig floor closely in anticipation. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_112]

Along with Doug, (from left) Aaron Avery (Micropaleontologist, PaleoData Consulting, USA), Tobias Höfig (Expedition Project Manager/Staff Scientist, IODP JRSO), and Ethan Petrou (Physical Properties Specialist, University of Oxford, UK) are on the catwalk to welcome the core. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_113]

And so it begins, Expedition 391 recovers meters of ooze at Site U1575. Pictured (from left): Kathrine Potter (Physical Properties Specialist, Utah State University, USA), Jesse Scholpp (Petrologist, University of Tennessee, USA), JRSO marine technicians carrying the core, and Tobias Höfig (Expedition Project Manager/Staff Scientist, IODP JRSO). (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_114]

Curatorial Specialist Carel Lewis (IODP JRSO) enters the length of the core and section into the software that feeds the database. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_115]

Assistant Laboratory Officer Beth Novak (IODP JRSO) writes the core and section number on the endcap of each section. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_116]

One of the first samples collected are Rhizon interstitial water samples. Pictured here is the process of marking the sample location. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_117]

Susan Boehm (Marine Laboratory Specialist, IODP JRSO) transfers a sample into a container. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_118]

Pictured here is the preparation of core material for pristine sampling in the clean air environment created by the KOACH clean air bench. The KOACH system uses laminar air flow and two facing units to create a zone that is nearly 100% dust-free. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_119]

Mark Higley (Marine Laboratory Specialist, IODP JRSO) is happy as a clam to have cores to work with. (Credit: Ethan Petrou & IODP) [Photo ID: exp391_120]

More core is pulled out of the core barrel on the rig floor. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_121]

In the meantime, the Siem electrical department works on installing an uninterrupted power supply unit. (Credit: Randy Gjesvold, IODP JRSO) [Photo ID: exp391_122]

In the core lab, the material keeps coming in from the catwalk. Here are Daniel Marone (Assistant Laboratory Officer, IODP JRSO) and Fabricio Ferreira (Marine Laboratory Specialist, IODP JRSO) pictured from behind the open door of the laser engraver during loading. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_123]

Fabricio Ferreira (Marine Laboratory Specialist, IODP JRSO) cleans a section half on the splitting table. (Credit: Maya Pincus & IODP) [Photo ID: exp391_124]

Mbili Tshiningayamwe (Petrologist/Observer, University of Namibia, Namibia) flattens the protective layer over a core section before making measurements on the Section Half Multisensor Logger. (Credit: Maya Pincus & IODP) [Photo ID: exp391_125]

Entier staff prepare another special food event. This time we were treated to Indian food. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_126]

Arianna Del Gaudio (Micropaleontologist, University of Graz, Austria) enters her samples into the database at the core entry station. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_127]

More core! Sandra Herrmann (Marine Laboratory Specialist, IODP JRSO) during the early morning hours on the catwalk. (Credit: Maya Pincus & IODP) [Photo ID: exp391_128]

The transition between igneous and sediment rock, a very important section, is recovered. Each step to best preserve it is discussed beforehand. From left: Emily Britt (Marine Laboratory Specialist, IODP JRSO), Lisa Crowder (Laboratory Officer, IODP JRSO), Beth Novak (Assistant Laboratory Officer, IODP JRSO), Tobias Höfig (Expedition Project Manager/Staff Scientist, IODP JRSO), and Yusuke Kubota (Geochemist, Tokyo Institute of Technology, Japan). (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_129]

Co-Chief Scientist William Sager (University of Houston, USA) and Siem Toolpusher observe core processing. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_130]

The core catcher is handled by Alejandro Avila Santis (Marine Laboratory Specialist, IODP JRSO). (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_131]

In the splitting room, Myriam Kars (Marine Laboratory Specialist, IODP JRSO) uses the sonic welder to reattach a blue endcap to a section. (Credit: Maya Pincus & IODP) [Photo ID: exp391_132]

Mike Widdowson (Sedimentologist/Volcanologist, University of Hull, UK) happily glances over a table of sediments while Wendy Nelson (Petrologist, Towson University, USA) collects scrapings as she evens out the surface of the section. (Credit: Maya Pincus & IODP) [Photo ID: exp391_133]

Hello from behind the scenes. Entier staff smile at the camera! (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_134]

Piece of volcanic rock showing the margin of a solidified lava flow: the shiny glass skin (black parts are fresh) transitions to the grayish crystalline interior of the lava. Volcanic glass forms as lava erupts on the seafloor and the lava’s outer surface chills immediately upon contact with the seawater (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_135]

Igneous rock curation follows a strict routine. Here, freshly split, unlabeled pieces of rock are propped up for drying. Once dry, they will be labeled. In the background, Daniel Marone (Assistant Laboratory Officer, IODP JRSO) checks split lines on the next section. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_136]

Wendy Nelson (Petrologist, Towson University, USA) describes igneous rocks in the core laboratory. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_137]

Kevin Gaastra (Paleomagnetist, Rice University, USA) and Daniel Marone (Assistant Laboratory Officer, IODP JRSO) cut samples in the splitting room. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_138]

The Siem Derrickman propels up to the top in the derrick. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_139]

The night shift Entier crew as they catch the sunrise after shift. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_140]

Here is what they see – a gorgeous and busy day on the JOIDES Resolution starts as we transit to Site U1576. (Credit: Sandra Herrmann, IODP JRSO) [Photo ID: exp391_141]