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Woods
Hole
Oceanographic Institution
Woods Hole, MA 02543 USA |
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Research Projects
Global Basins Research Network (GBRN)
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Sniffer Data
Water column light hydrocarbon sniffer data
Water column light hydrocarbon sniffer data; gases
were collected on regular grid in surface, mid, and bottom water over the data
cube. Note that contours for methane and ethane look completely different in
surface from bottom water. Also note regular line of high C1 and C2 anomalies
running from the center bottom toward the northeast in bottom water. Pattern is
still present, but not as strongly in mid water. Pattern goes away in the
surface water. We propose that these bottom water anomalies are diagnostic of
hydrocarbon seepage into bottom water. However, we have no 3-D seismic data in
appropriate region to test this hypothesis.
Similar contours are presented for ethylene, propylene, propane,
iso-butane, and n-butane.
Contouring was carried out by Wei Hei of Lamont (GBRN) who "told" a
Landmark Graphics program that this was seismic data. Therefore, anyone with
3-D seismic data should be able to overlay their data on this data with minimal
difficulty.
Data was collected by Dr. Jim Brooks and co-workers at the Geochemical and
Environmental Research Group (GERG) at Texas A & M University.
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