Magnetic Minerals On The Ocean Floor

Some igneous rocks contain minerals that are magnetic. Such magnetic patterns led to recognition of the occurrence of sea floor spreading and they remain some of the strongest evidence for the theory of plate tectonics. The figure below includes two images of the ocean floor.

mark todd fleece mesh cooler rug looking for kitchen bar stools marine terminal lofts floor plans mansur gavriel mini bucket bag celebrity log cabin rentals in tennessee mountains madonna confessions on a dance floor unmixed log picnic table plans free lowes hunter fans with remote

25 Best Ideas About Seafloor Spreading On Pinterest Plate Seafloor Spreading Earth Science Lessons Plate Tectonics

Seafloor Spreading Theory Discuss 3 Seafloor Spreading Earth And Space Science Earth Science

Perfect Evidence For Seafloor Spreading Has Come From A Changes In The And View Seafloor Spreading Mineral Point Earth S Magnetic Field

Diagram Of Magnetic Polarity Changes In The Seafloor Seafloor Spreading Earth Science Earth And Space Science

Https Encrypted Tbn0 Gstatic Com Images Q Tbn 3aand9gcqphf6tugrqbta0 3wnfphtdew5myflkg0uqq Usqp Cau

An Illustration Of Seafloor Spreading Seafloor Spreading Sea Floor Earth Activities

It is found in lava.

Magnetic minerals on the ocean floor.

When magma flows out of a mid ocean ridge small magnetic minerals in the magma align themselves to point in the direction of the earth s current magnetic north. Magnetic reversalssome of the most important evidence of seafloor spreading comes from magnetic reversals recorded in the ocean floor. These two things were the magnetic striping on the ocean floor and the age of seafloor rocks. Plate tectonics and reversals of the earth s magnetic field are responsible for the magnetic stripes found on the ocean floor.

As lava cools the minerals settle parallel to the earth s magnetic field. Basalt is one of these rocks. These minerals provide a record of the direction of earth s magnetic field at the time when the molten matter that formed the rock. When the earth s magnetic field reverses a new stripe with the new polarity begins.

Scientists can use this data to make magnetic maps of the ocean floor. Magnetic striping magnetic minerals are found in rocks. Magnetic striping of the sea floor after mid ocean ridges and trenches were discovered more evidence was discovered that helped to support the theory that the continents had moved around. Evidence for seafloor spreading.

3 rocks containing iron give us a record of earth s magnetic field. Throughout earth s history. Plate tectonics explains patterns observed in data from these studies. From studies of the magnetic properties and the ages of igneous rocks on the ocean floor.

They record the strength of the magnetic field in rocks on the ocean floor.

Ocean Floor Diagram Geologi

Pin On Geology

How Magnetic Reversals On The Seafloor Provide Evidence For Seafloor Spreading Earth And Space Science Seafloor Spreading Earth Science Teacher

Sea Floor Spreading And Continental Drift Seafloor Spreading Continental Drift Plate Tectonics

Source : pinterest.com