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Aaron de Loach, Sandra Herrmann (20 May - 20 July 2019)

Summary:

Expedition 383 began and ended in Punta Arenas, Chile. Elisabetta Olivo, Ionela Samolia and Skyler Jordan worked as temporary technician in the core lab and the Paleomag lab. Operations included only APC/HAPC coring. Major differences to regular sediment expeditions were: 1) expansion of cores due to gas which produced an unusual high amount of shattered liners and liner patch usage as well as 2) a trial of a "speedy workflow" to prevent the expansion in the lab (once sections were caped). For details, see PP and CORE LAB report.

AMS/Inventory/Shipping:

  • Single World Courier shipment forms can be completely generated automatically in AMS (WC Job # can be added, see Fig. 1). If a person has a frozen and refrigerated shipment, the combined document can’t be generated in AMS. Recommend we do one pallet per scientist, with multiple parcels either frozen or refrigerated.
  • From 375 tech report: Per Mitch Malone, core lab log sheets should be scanned and copied to data1, and sent to shore in surface freight not AF anymore.
  • We were low on store items and phone cards, especially. Towards the end of an expedition, the ship ALO should ask shore to make sure phone cards are coming.
  • We used a high amount of liner patch for core expansion. The usage history will reflect a higher amount than usual due to manufacturing of core extenders. There is a high possibility to encounter the same issue on JR100.
  • IODP store items for San Diego port call #1 will be shipped separate from regular IODP store items. They will come as "gifts" specifically for that purpose.

               Figure 1: WC Job # was added to AMS (Pallet Level).

  • We started a table on "items to be shipped to College Station from San Diego #1", that techs can add to. You can communicate to your crew. It will make it easier to keep track of odds and ends.  The table is in the ALO notebook.

               Gas Botttles:

    •  We have to manually change the empty gas bottle HTS code to that for an empty cylinder.  Lisa Crowder should have have the latest code after export/logistics meeting 7/16/2019.  We changed the shipping paperwork/AMS for EXP 379 and EXP 382 to reflect new HTS.
    • We were not able to send the 382_SURF shipment until we changed all the gas bottle source locations back to TGAS.  I believe the gas bottle function will update the location to "2IODP" automatically, so there's no need to change it in warehouse
    • Saravanan deployed an AMS change that let's us move gas bottles by rack.  All bottles in the rack will automatically be updated.  However, we can only move them around the ship.
    • I asked the shipping folks to use the gas bottle function to ship bottles, Lisa may bring it up in export/logistics meeting 7/16/2019, they have not responded.  Bottle locations have to be updated manually.

Special projects/topics:

  • Confluence
    I created a form for submitting software Bugs and issues in the lab note book general area, and a link to the form on each lab page.  the programmers will have a way to view all bugs and get notified when a bug is reported.  The "All Reported Software Issues" page displays tables with all current and completed bugs separated automatically.  A table showing lab specific bugs reported is in each lab notebook.  When the tech decides an issue is resolved, they will change the "status" to verified and the issue will be removed from their notebook, but archived on the main issues page.  Developers change the status to complete.
    I put a similar system in our ALO Notebook for non-software issues and tasks.  I wanted completed tasks to be separated so we know whats current.  I recommend it for other notebooks instead of the check boxes.  Try it out and let me know what you think. 383 ALO Technical Report
  • Rad Van was cleaned up for Guymas. SOP for wipe test was developed by LO. ALO’s were trained by LO.
  • 3D printer was used for a few projects.
  • Hotplate, ultrasonic bath and stirrer hotplate inventory was made and saved in ALO Lab Notebook.
  • Technical knowledge exchange was held - techs teaching techs about other research ships, their workflow, the database structure etc.
  • Confluence 1: Laboratory Notebooks discussion about having it private (hidden from scientists) or public (scientists can see everything). Management decided to go with option 2.
  • Confluence 2: General issues reporting got added. It reports to a central location and the Lab Notebook of the specific lab. The techs and developers can annotate and add notes etc. Check out here: All Reported Software Issues
  • The heater on the catwalk closed to the rig floor failed and was repaired by the rig electricians.  Nice and quiet now.
  • We had a leak above the yellow cabinet with the chemicals in UTSHOP. SIEM fixed it and found another one. Currently a tarp is there to prevent water from getting into the cabinet.  The leak will be a big project to fix.  May be a while.
  • Hard hat inventory was taken: SIEM will enforce a policy (time unclear) where hard hats can't be older than 5 years.  Plus, no "unapproved" stickers or writing on them.  We have to replace most of all of the lab and accommodation hard hats for the berths we are responsible for. It is not yet reflected in AMS when we will order them/they get replaced. They were tagged with a red dot, if expired.
  • Water samples were collected during transits in International waters and stopped in the EZ zone.

The scientists requested a "speedy version" of core flow during the shallow (1100m) site, Hole B (see Figure 2), due to expansion observed in Hole A. Listed below is what LO, Staff Scientist, Curator and Co-chiefs agreed on:


U1542B Core flow

Catwalk – no catwalk sample

-          Core 1 and 2 proceed with section shorter than 150cm and acetone end caps

-          Core 3 and on, cut section shorter than 150 cm, use core extender and tape onto section ends

-          Proceed with pressure release holes on the core liner when necessary

Whole round sections

-          Label, and laser engrave as normal

-          Run on WRMSL immediately with 3cm interval, 1 second GRA acquisition, 1 MS measurement.

-          Run on NGR immediately after WRMSL with one position, 200 sec.

-          Secure core extenders by weld or acetone, re-measure and update only curated length, recalculate offsets, recalculate depths.

-          Split

Splitting core

-          All technical staff who are involved in core splitting need to wear face shield in addition to safety glasses for the first few cores, until it appears safe to proceed as normal.

-          If safety become a concern, LO/ALO should stop the process, and revert back to waiting and allow core to expand before splitting.

           If core integrity becomes compromised by continued expansion, ALO/LO should revert back to normal core flow.

W          – leave on auxiliary table before wrapping and placing in dtube

A            - Proceed with normal distribution to description table, routine core flow

-          When all 3 description tables are full and sample table is occupied, all overflow Archive sections should be wrapped and placed inside designated dtube

-          Describers will try to scan cores on SHIL as soon as it is split

Note:

If split core start to expand inside the split liner and result in re-curating consistently or bulging over the liner, we will also stop this method and revert back to previous core flow.

Figure 2.: Speedy workflow for 1452B/C.

Notes about the quick split process:

  1. Although scientists were somewhat pleased with the result, no clear evidence showed any improvement in core quality.  The micro-fractures from gas release, which were the major concern, occurred before the core even reached the catwalk.  We remain unconvinced the process made any real difference in core quality.
  2. It is strongly advised that the measurements on whole round tracks not be reduced below the standard.
  3. Re-curation became a large challenge for correlation.  Had the science party waited until core was re-curated before measuring on the tracks, this would likely have been mitigated.
  4. No expansion continued after splitting.  No curation issues were apparent.
  5. The process was still the same amount of work, though the pace would not be sustainable for more than a few days.  It caused extra stress and pressure on the Tech staff.

Shipments

Off going:

  • CORE_1 and CORE_2 to IODP. 2x40 Ft Reefers, Chilean and International (Cyprus) cores are separated. International core boxes have a red dot on them.

  • 1x40 Ft SURF to IODP.

  • 5 Cold shipment customers (3 frozen (HERB/LILO/RAVE), 3 refrigerated (HEBR/LILO/SMITH)),

  • Air freight to IODP (RAF).

  • A pallet of foreign Air Freight (FA).

  • HC (Hand Carry) - NZ shipment of 3 crates of equipment (Rieselmann),

  • Since our recovery was a lot less than expected and due to this being the last port call in Punta Arenas, Chile, some of the oncoming freight (D-tubes, core boxes etc.) need to be turned around and send back to College Station.  Some load out mock ups based on recovery are in the ALO expedition folder and we sent to shore. 120 D-Tube boxes remain in the Punta Arenas warehouse.

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