Some plateaus have a crustal structure that closely resembles that of continental crust.

Distribution of the world's main biomes. Under wach biome in the key are the major climatic features.

During spring tides (A) the sun, moon and earth are aligned. When moon and sun are at right angles causing nap tides (B), when tidal extrems are reduced.

The Wrangellia Terrane is a geologic concept encompassing a large arc of terrain extending from the south-central part of the U.S state of Alaska through southwestern Yukon and along the Coast of British Columbia in Canada.

Distribution of the earth's arid lands

The continental crust is the layer of igneous, sedimentary, and metamorphic rocks which forms the continents and the areas of shallow seabed close to their shores, known as continental shelves

Continental shifts from the Late Cambrian to the Middle Silurian periods, extending 550 to 430 million years ago.

Continental shifts from the Late Early Devonian to the Early Late Permian periods, extending 410 to 250 million years ago.

Volcanic areas of the modern world (excluding spreading ridges and oceanic islands).