3.1 Mooring Deployments /CTD's /XRF Analysis - Jim Gendron

Early in the cruise, one CTD cast was completed South-East of the venting area on the new lava. The water was collected around 1300 meters as a non-plume background sample for many of the groups onboard.

During the cruise, the hot fluid sampler was used to collect 22 filters for XRF analysis. These samples will be analyzed when we return to Seattle. Also collected on the fluid sampler were about 30 samples for SEM and 5 samples for Particulate Organic Carbon (POC). A total of four, good Niskin samples were collected, one each over Castle, Magnesia, Cloud and CASM vents. Another was attempted over Hell vent, but it appears to have pre-tripped sometime during the dive.

Near the end of the cruise, three MTR moorings were deployed. One was at ASHES and two were close to the new lava vent area.

Moorings Deployed Summer of '99

Lat Long UTM X UTM Y

(deployed from Thompson)

99T50 -129.9867 45.9417 423520 5088039

99T49 -129.9867 45.9250 423497 5086188

99T51 -130.0050 45.9300 422083 5086761

(deployed from Wecoma)

99T52 -130.0245 45.9053 420536 5084039

99T53 -130.0142 45.8912 421317 5082455

99V110 -130.0000 460.550 422645 5100644

99V111 -129.9135 45.9493 429201 5088823

99V112 -130.0650 45.9205 417417 5085766

99V113 -130.0017 45.9167 422322 5085276