Mapping of variation over an area is valuable in detecting structures obscured by overlying material.
Magnetic surveys of the ocean floor reveal.
These patterns were unlike any seen for continental rocks.
Alternating stripes of normal and reversed polarity paralleling the mid atlantic ridge.
Magnetic surveys of the ocean floor reveal.
Alternating stripes of normal and reversed polarity paralleling the mid atlantic ridge.
Seafloor is created at mid ocean ridges and destroyed at deep ocean trenches.
Seafloor is created at mid ocean ridges and destroyed at deep ocean trenches.
Plate tectonics states that.
Plate tectonics states that.
In a reconstruction of earth s geologic past the continents of africa and south america fit best along the.
B thin oceanic crust composed of basaltic rocks.
The concept of seafloor spreading states that.
Magnetic surveys of the ocean floor reveal.
Magnetic surveys of the ocean floor reveal.
Magnetic stripes and isotopic clocks oceanographic exploration in the 1950s led to a much better understanding of the ocean floor.
Newly formed mineral grains on the ocean floor are magnetized according to the new orientation of the magnetic field.
In geophysics a magnetic anomaly is a local variation in the earth s magnetic field resulting from variations in the chemistry or magnetism of the rocks.
Magnetic surveys of the ocean floors reveal a alternating stripes of normal and reversed polarity paralleling the mid atlantic ridge.
C that reversed polarity is rare.
Among the new findings was the discovery of zebra stripe like magnetic patterns for the rocks of the ocean floor.