A geochemist’s view on the WW II wrecks
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Transcript of A geochemist’s view on the WW II wrecks
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Chris ReddyDepartment of Marine Chemistry and Geochemistry
Woods Hole Oceanographic Institution
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The Japanese tanker, the Hoyo Maru sank in 1944. It could carry up to two million gallons of oil.
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National Geographic
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MICHAEL BARRETT
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SourSour
Initial cargofrom Hoyo Maru
≠
Surface slick
Surface slickfrom Hoyo Maru
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normalalkanes
branchedalkanes
cycloalkanes
nitrogen,sulfur, andoxygen
Gasoline
Kerosene
Diesel
Heavy gas oil
LubricatingResiduum
Boiling point °C
020 40 60 80 100
100
80
60
40
20
100 200 300 400 500 600
s
napthenoaromaticsaromatics
Percentageof moleculartypes
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67%33%
What happens if there is a massive release?
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What comprises the oil? (they are few aromatics)
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Where did the Hoyo Maru oil come from?
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Ts
Tm
29H
H
O 31HH
32HH
M29M28H (S)
(R) (S)
(R)
Hoyo Maru
Central Sumatra Basin
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(Camilli and Duryea, 2009)
TETHYS: an in-situ mass spectrometer optimized for detection of low molecular weight gases and volatile organics (chemical sniffer!)
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SENTRY AUV
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1. Treat oil as a group of compounds that can provide invaluable insights into the source, behavior, and response to spills.
2. New technology in the pipeline that may aid in monitoring and assessment.
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