American Samoa Expedition

EX1702

NOAA expedition EX1702 sampled seamounts and seafloor features in the deep waters of the American Samoa region, Pacific using the submersible Deep Discoverer. OSU marine repository archives the rock samples collected during the expedition. Archived samples include basalts, fossil corals, and more. Below are the samples recovered from each dive.

For more information please visit the dedicated NOAA Page and Background Information

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Dive sample tables: click to expand

Collection Metadata
IGSNLatitudeLongitudeDepth (m)Feature NamePrincipal Rock TypeTemp (C)Salinity (PSU)Oxygen (mg/l)
OSU-EX1702-D2-1-14.29-169.50503.66Tau Unit of NMSASBasalt8.4134.554.23
OSU-EX1702-D2-3-14.29-169.50433.98Tau Unit of NMSASBasalt10.3534.693.85
OSU-EX1702-D2-6-14.29-169.50343.92Tau Unit of NMSASVolcanic Breccia13.1534.923.79
OSU-EX1702-D3-1-14.54-168.082527.85Rose AtollBasalt1.9134.634.52
OSU-EX1702-D3-2-14.54-168.082502.41Rose AtollBasalt1.8934.674.47
OSU-EX1702-D5-1-12.65-167.273770.47Leoso SeamountSediment1.4634.694.98
OSU-EX1702-D5-2-12.65-167.273747.76Leoso SeamountBasalt1.4534.695.00
OSU-EX1702-D5-4-12.65-167.273718.43Leoso SeamountBasalt1.4634.694.89
OSU-EX1702-D6-1-12.28-168.323033.64Utu SeamountVolcaniclastic1.6934.684.55
OSU-EX1702-D6-2-12.28-168.323024.43Utu SeamountVolcaniclastic1.6934.684.46
OSU-EX1702-D6-5-12.28-168.322970.18Utu SeamountBasalt1.7934.624.47
OSU-EX1702-D7-1-11.17-169.892115.97Moki SeamountBasalt2.0334.654.33
OSU-EX1702-D7-2-11.17-169.892075.95Moki SeamountBasalt2.1034.644.33
OSU-EX1702-D7-3-11.17-169.892054.88Moki SeamountBasalt2.1034.654.25
OSU-EX1702-D8-1-12.27-168.373919.99Utu SeamountBreccia1.4134.705.05
OSU-EX1702-D8-2-12.27-168.373873.21Utu SeamountBasalt1.4534.735.08
OSU-EX1702-D8-4-12.27-168.373847.51Utu SeamountBasalt1.5034.694.80
OSU-EX1702-D9-2-14.21-169.06709.69Vailulu'u VolcanoBasalt5.7334.454.85
OSU-EX1702-D9-4a-14.21-169.06701.92Vailulu'u VolcanoBasalt5.734.454.91
OSU-EX1702-D9-5-14.21-169.06730.34Vailulu'u VolcanoBasalt5.5434.454.83
OSU-EX1702-D9-6-14.22-169.06702.18Vailulu'u VolcanoBasalt5.7034.434.93
OSU-EX1702-D10-3-14.55-168.13568.09Rose AtollFossil Coral6.9434.464.92
OSU-EX1702-D10-6-14.55-168.13315.29Rose AtollFossil Coral16.9835.324.64
OSU-EX1702-D11-1-15.73-167.263002.91Seamount DBasalt1.7334.674.67
OSU-EX1702-D11-3-15.73-167.262989.02Seamount DBasalt1.7434.674.63
OSU-EX1702-D11-4-15.73-167.262971.06Seamount DBasalt1.7434.674.67
OSU-EX1702-D11-5-15.73-167.262951.47Seamount DBasalt1.7434.684.62
OSU-EX1702-D12-3-14.47-168.642448.92Malulu SeamountSediment1.8934.674.51
OSU-EX1702-D12-5-14.47-168.642382.57Malulu SeamountVolcaniclastic1.8634.664.34
OSU-EX1702-D12-7-14.47-168.642340.77Malulu SeamountSediment1.8634.664.36
EX1702-D10 (Rose Atoll)
Sample Location Rock Type Description Images
OSU-EX1702-D10-3 14.55°S, 168.13°W Fossil Coral A composite of ~100um diameter sized pieces of carbonate… Image 2Image 3Image 4Image 4Image 4Image 4Image 4Image 4
OSU-EX1702-D10-6 14.55°S, 168.13°W Fossil Coral A small fossil coral with some brownish altered surface… Image 2Image 3Image 4Image 4Image 4Image 4Image 4