GEOL 102 1st Edition Lecture 22 Outline of Current Lecture I. Antarctic bottom waterII. Ernest ShackeltonIII. Expedition Current LectureI. Antarctic bottom water a. Coldest, deepest, most dense b. 34.8 percent parts per thousand salinityc. -0.5 degrees d. Near Antarctica i. Low evaporation 1. Salinity should be lower, but it is not, why?II. Earnest Shackeltona. Dreamed of being the first person to reach the south poleb. Would have died, but turned around and lived c. Norwegians beat him to the south poled. Next dream was to make it across Antarctica III. Expeditiona. First stop at the south Georgia islandb. Ship called the Endurancec. Pack ice floatingi. Mass of iceii. Further south, got thicker and thickeriii. Had to cut path through iceiv. Ice was fresh water!1. Why?v. Sinking thigh density water = Antarctica bottomvi. Freezing 1. Steals h20 molecules but leaves salta. Water wants to sink because density is increasingvii. Sailing into Wedell Sea1. Endurance froze into the pack ice2. Mission failureThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.3. Endurance crushed and sank4. Voyage of James Carid a. 5 menb. 23 ft boatc. 800
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