Label The Diagram Below Which Shows The Last Stage Of Continental Rifting

Along the third east african rift the continetal crust is still in the process of breaking apart. By the end of 1967 earths surface had been mapped into a series of plates figure 1016.

Physical Geology

The fourth stage fig.

Label the diagram below which shows the last stage of continental rifting. A continental rift is the belt or zone of the continental lithosphere where the extensional deformation rifting is occurring. 11the diagram below shows trends in the temperature of north america during the last 200000 years as estimated by scientists. Distinguishing ridges from rifts ridges are where the ground rises up and rifts are where the ground sinks down located in the central part of the ridge.

Geology ch 2. Sketch label and explain the features and processes associated with ocean ocean and ocean continent convergent boundaries. 104 plates plate motions and plate boundary processes continental drift and sea floor spreading became widely accepted around 1965 as more and more geologists started thinking in these terms.

It does not create continental crust. These boundaries usually occur along mid ocean ridges but sometimes they occur within continents. A rising thermal current in the mantle heats the lithosphere.

Sketch label and explain the stages of continental rifting using east africa and the red sea as examples of stages. 5b below shows the actually rifting apart of the continent so the asthenosphere rises towards the surface causing decompression and extensice melting. Place the labels on the diagram in order of the presumed stage of rifting.

Drag the appropriate labels to the appropriate box. Intermediate stage continued seafloor spreading makes a narrow ocean basin initial stage rifting of continental lithosphere intermediate stage. Rifting is the process by which the continental lithosphere stretches.

These zones have important consequences and geological features and if the rifting is successful lead to the formation of new ocean basins. Label the diagram below which shows the last stage of continental rifting. For each item below use the pull down menu to select the letter that labels the correct part of the image.

Along two the red sea and the gulf of aden the continental crust has completely separated to form two juvenile ocean basins. Labels may be used only once. Below is an illustration of how such rifts form.

New basaltic oceanic crust is formed. The lithosphere and asthenosphere are drawn and at the left end of the diagram below the continental crust on the land is labelled a passive margin. The asthenosphere rises up to fill the rift and partially melts to generate magma.

Finally sea floor spreading takes over as the ocean basin widens. Oceanic crust and continental crust upwelling magma in a rift zone creates oceanic crust. Base your answers to questions 35 through 37 on the diagram below which shows the edge of a continental glacier that is receding.

R indicates elongated hills. The magma is released to the surface by the many volcanoes that lie along the rift where it hardens to form new oceanic crust. 36 what happens at convergent boundaries.

On the right a more elevated landmass is present with a volcano spewing smoke into the air. Continent continent shows two opposite landmasses accompanied in the center by a body of water on top.

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