“Geoworld” Plate Tectonics Lab3polarity time scale. Based on this correlation, how many million years (m.y.) ago didsea floor spreading begin in the Elrond Sea?
3.Using the magnetic anomaly pattern in the Elrond sea, determine the 1/2-spreadingrate (plate velocities) on the Hobbit Ridge (i.e., determine how fast the Frodo continentis moving away from the Hobbit ridge). Give your answer in km/m. y.(kilometers/million years). Show your equations and explain where each number camefrom.
4.What is the full spreading rate (in km/mya) of the Hobbit Ridge? (i.e., how fast are theBilbo and Frodo continents moving away from each other)? Show your equations andexplain where each number came from.
5.Using the magnetic anomaly patterns in the Aragorn Ocean, determine when sea floorspreading started to form the Aragorn Ocean crust (remember, spreading is notactively going on now but it was at one time).
6.At the time that active sea-floor spreading was occuring in the Aragorn Ocean, atwhat rate was new sea-floor being created? (Think: is this related to the fullspreading rate or the half spreading rate)? Show your equations and explain whereeach number came from.