Question

Part A. By reading the information above determine how many years it took for the island to retreat this distance. (Read about when the retreat began, and then use the last year that we know about shoreline location from the map.) Part B. How fast is the island migrating to the west? Calculate the rate in feet/year. Remember that rate is simply a velocity with distance (in feet)/time (in years) Write out both answers below. You can include the equation you used to calculate the rate of migration Bay Shore Apres Roadside Park Horn island aer : Tralen Ocean City Ocean City L WETT ASTERN cipal AND Ceast Qu Rayat AL TIMORE BM Pardng ard Tower -Ocea City Inlet 3) 12 eean City Harbor SWA OCEAN OT AIRPORT FIGURE 12.7: Ocean City, Maryland (1964) (Photorevised. 1972-purple areas) North kilometer 5 Maryland mile 1849 Outline of Island Quadrangle location 1:24.000 5 ft. Contour interval da Fiat 33 AND

Answer 1

Part A: the is dated 1972 and it shows paleoshoreline of 1849 so based on this data we can say that it migrated between these two years (I.e., 1972-1849=123 years)

Part B: since it has migrated about 1/4th mile so rate of migration=distance/time = 1320/123=10.7 feet/year