EARTH 4 Lecture 9: Day 9 (1st day after midterm)
Document Summary
Plate tectonics, continental lithosphere & oceanic lithosphere junction is where it. Sources and sinks must be at same rate. Captain made decision to take on hurricane, 33 died, monetary decision probably. Search for el faro data recorder (sitting at rest on sea floor) At wreckage site using auv sentry (automatic underwater vehicle) to try and find where. Ship el faro lost in october 2015 in hurricane joaquim ship"s (cid:271)la(cid:272)k (cid:271)ox we(cid:374)t (cid:271)e(cid:272)ause it re(cid:272)ords (cid:272)o(cid:373)(cid:373)u(cid:374)i(cid:272)atio(cid:374) occurred. 7 students = reservoir residence time (rest) = 7 students / 10 students / 1 min = 0. 7 min. Sodium and chloride is long, like 100 million years. Shorter ones are more chemically reactive (magnesium and potassium-hydrothermal circulation gets them, they precipitate out as solids over time) bacteria can use sulfate in place of oxygen. Residence time to flux rate, flux rate to residence time. 2 sources and one sink, sum of 2 sources must = sink, to be at steady state.
