Convert scanned images into editable text. Free Online OCR is a free service that allows you to easily convert scanned documents, PDFs, scanned invoices, screenshots and photos into editable and searchable text, such as DOC, TXT or PDF.
Layers that are less dense, such as the crust, float on layers that are denser, such as the mantle. Both oceanic crust and continental crust are less dense than the mantle, but oceanic crust is denser than continental crust.This is partly why the continents are at a higher elevation than the ocean floor.ayers that are less dense, such as the crust, float on layers that are denser, such as the mantle. Both oceanic crust and continental crust are less dense than the mantle, but oceanic crust is denser than continental crust.
Features. The surface of the earth can be divided into the continental crust and the oceanic crust. The continental crust is made mostly of granite while the oceanic crust is made of basalt. The average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.Three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth.he continental crust is made mostly of granite while the oceanic crust is made of basalt. The average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.