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12. To find the depth at age 5.72 Ma., vou will Hive to 1 do the sltope calculation 1sing the points 1.85, 192.2) and (10.46, 216.7). Your answer should be between 192.2 anc 216.7 Ma and closer to 192.2 m depth Mdes 216.1-1922 _ 245 Mo " 10 dL -4 gg - 55F 12Tm 192 2 =(“f%q“1%8)+b =% 1922- (413924.38) = |70.78m \ Y= U4¥r I > 14395 572) 078 =5 e ) N o . Once you have calculated the interpolated depths for cach age (the previous step, question 12), plot them on the Site 594 core graph as you did for the other datum. That is, draw a line showing the datum at the appropriate depth and label these new depths and ages 14. Now, connect the lines of the same ages across the three sites. In other words, connect all the foramanifera datum lines between the three cores using the same color. Now you can graphically see sedimentation rate changes through time! 15. In general, how does the sedimentation rate change at 3.47 million years ago as you move from the north (Site 588) to the south (Site 594)? Now looking at the complete core graph from all sites, it is clear there is a lot of fluctuation between sedimentation rates. Specifically looking at 3.47 million years ago, in the North (site 588) sediment was calcareous and only extracted 38.3 meters deep with a mediocre speed sedimentation rate. Moving South (site 594), the sediment is sandy at depths of 97.48 meters and the sedimentation rate is slowing down. When geologists do field work, they identify the rock at a location, then correlate their findings to rocks in the same region or even in another area. Correlation is usually done using the rock’s [ )