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A geochemist’s view on the WW II wrecks

A geochemist’s view on the WW II wrecks. Chris Reddy Department of Marine Chemistry and Geochemistry Woods Hole Oceanographic Institution. Hoyo Maru. The Japanese tanker, the Hoyo Maru sank in 1944. It could carry up to two million gallons of oil. National Geographic. Hoyo Maru.

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A geochemist’s view on the WW II wrecks

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  1. A geochemist’s view on the WW II wrecks Chris Reddy Department of Marine Chemistry and Geochemistry Woods Hole Oceanographic Institution

  2. HoyoMaru The Japanese tanker, the Hoyo Maru sank in 1944. It could carry up to two million gallons of oil.

  3. National Geographic

  4. HoyoMaru Michael Barrett

  5. Sour ≠ Surface slick from HoyoMaru Initial cargo from HoyoMaru Surface slick

  6. nitrogen, sulfur, and oxygen Boiling point °C 100 200 300 400 500 600 100 normal alkanes 80 branched alkanes cycloalkanes 60 Percentage of molecular types 40 aromatics 20 napthenoaromatics s 0 20 40 60 80 100 Gasoline Diesel Lubricating Residuum Kerosene Heavy gas oil

  7. What happens if there is a massive release? 67% 33%

  8. What comprises the oil? (they are few aromatics)

  9. Where did the Hoyo Maru oil come from?

  10. H Hoyo Maru 29H 31HH O Tm 29M M (S) 28H Ts 32HH (R) (S) (R) Central Sumatra Basin

  11. Future technology

  12. TETHYS: an in-situ mass spectrometer optimized for detection of low molecular weight gases and volatile organics (chemical sniffer!) (Camilli and Duryea, 2009)‏

  13. SENTRY AUV

  14. Summary • Treat oil as a group of compounds that can provide invaluable insights into the source, behavior, and response to spills. • New technology in the pipeline that may aid in monitoring and assessment.

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