We also began obtaining highly accurate, precise GNSS (GPS) measurements of features here at Untersee using a Trimble GNSS System We will obtain several more cores from this area as well as other regions of the north basin which remains oxic to the bottom (170 m).ĭenis Lacelle and Andre Pellerin will be conducting geochemical analyses of the core material and pore water that was obtained once they return home and the samples catch up with them a few weeks later. We were able to recover a 50 cm sediment core from the deepest region of the south basin (102 m) which is also an area that goes anoxic and has high levels of dissolved methane. Yesterday was quite productive at Lake Untersee.
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