The following figure shows the pattern of magnetism within t…
The following figure shows the pattern of magnetism within the area of the Juan de Fuca Plate, off the west coast of North America. The color stripes represent parts of the sea floor with normal magnetism, and the magnetic time scale is shown using the same colors. According to the figure, what is the age and the polarity of the youngest rocks being subducted in the Cascadia subduction zone?