After spending the morning finishing the construction of the coring vessel, the team was eager to get out and collect their first core. Normally in the afternoon you can expect some winds to build over the lake, but today to our surprise it was flat calm. The coring team took advantage of the lull in the weather and headed to their first site of six.
Even though all of the sites are within Yellowstone Lake, each one is in a different geologic area, including a deep ‘graben’ (a ditch in between two faults), a large hydrothermal explosion crater, the deep, hydrothermally active hole east of Stevenson Island, and areas of landslide deposits. The cores from these different sites will give the team an unprecedented look at the post-glacial geological history of the lake region, including the processes by which large hydrothermal explosion craters were formed.
Photos by Chris Linder, WHOI. Work was completed under an authorized Yellowstone Research Permit.