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The observation was made by Ormonde de Kay in a 1973 tongue-in-cheek paper, which he introduced as "another earth-shaking new theory derived from simply looking at maps." [ 1 ] It satirizes the acceptance of plate tectonics theory as it was being formulated and refined at the time to describe the movement of the Earth's continents that is now ...
Superimposed drainage develops differently: initially, a drainage system develops on a surface composed of 'younger' rocks, but due to denudation activities this surface of younger rocks is removed and the river continues to flow over a seemingly new surface, but one in fact made up of rocks of old geological formation.
Seasonal abundant precipitation drained by 3 sinkholes. In geology, a depression is a landform sunken or depressed below the surrounding area. Depressions form by ...
Plate tectonics (from Latin tectonicus, from Ancient Greek τεκτονικός (tektonikós) 'pertaining to building') [1] is the scientific theory that the Earth's lithosphere comprises a number of large tectonic plates, which have been slowly moving since 3–4 billion years ago.
Similar floods have occurred elsewhere on Earth throughout history; examples include the Bonneville flood in North America, [4] during which Lake Bonneville overflowed through Red Rock Pass into the Snake River Basin, and the Black Sea deluge hypothesis that postulates a flood from the Mediterranean into the Black Sea through the Bosporus. [65]
One of Earth’s deepest mysteries lies beneath our feet: the planet’s inner core. Made of iron and nickel, the hot, solid sphere is about 70% the size of the moon.
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The first eon in Earth's history, the Hadean, begins with the Earth's formation and is followed by the Archean eon at 3.8 Ga. [2]: 145 The oldest rocks found on Earth date to about 4.0 Ga, and the oldest detrital zircon crystals in rocks to about 4.4 Ga, [34] [35] [36] soon after the formation of the Earth's crust and the Earth itself.