Day 3 - Our first samples
Today we dredged up our first rock samples! You can see we were pretty excited.
Unfortunately, we did not find the “black rocks” we were looking for, mostly carbonates. We want primarily basalt because then we can find the age of seamounts from their geochemistry. The carbonates we brought up just tell us about the critters that settled on the seafloor after volcanism stopped.
Success! Lots of carbonate rocks (limestones and grainstones) with coral, foraminifera and bivalve fossil fragments. Not the volcanic ‘black rocks’ we were looking for but still exciting 👍🏻 #RVInvestigator pic.twitter.com/oi7Gqq37cr— Jamie Menzies (@jamiemingis) August 9, 2019
Nonetheless, we bag and tag ’em.
Check out the video I put together afterwards:
Yesterday (day 3) we collected our first samples from the seafloor! You can hear the drop in excitement when we discovered mostly white rocks. Nearly all were carbonates 😖 but on our second pass we brought home some basalt 🤗 #RVInvestigator @EarthByteGroup pic.twitter.com/kNhdcNu8o4— Ben Mather (@BenRMather) August 10, 2019