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Venus_Texbook_Part
Venus_Texbook_Part
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16 Terms
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1
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Geology of Venus
The study of the geological characteristics and processes that shape the surface of Venus.
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Plate tectonics
The geological process characterized by the movement of large plates on the planet's surface, which is absent on Venus.
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Venera 7
The first probe to land and transmit data from the surface of Venus.
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Pioneer Venus orbiter
The spacecraft that created the first global radar map of Venus.
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Magellan spacecraft
The US spacecraft that produced high-resolution imaging radar maps of Venus.
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Lava plains
Lowland areas on Venus, primarily composed of basaltic lava, covering about 75% of the planet's surface.
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Coronae
Large circular or oval features on the surface of Venus produced by subsurface volcanic activity.
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Ishtar Terra
The northern highland region of Venus, comparable in size to Australia, containing the highest elevations.
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Maxwell Mountains
The highest mountain range on Venus, located in the Ishtar region.
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Greenhouse effect
The process by which carbon dioxide traps heat in Venus's atmosphere, leading to extreme surface temperatures.
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Runaway greenhouse effect
A climatic condition where increased temperatures lead to further release of greenhouse gases, exacerbating warming.
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Impact craters
Depressions on a planetary surface formed by collisions with meteoroids, indicating the age of the surface.
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Atmospheric composition
The chemical makeup of the atmosphere, with CO2 being the most abundant gas on Venus, making up 96%.
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Sulfuric acid clouds
Clouds in Venus's atmosphere composed primarily of sulfuric acid droplets, formed from sulfur dioxide and water.
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Volcanism
Geological activity involving the movement of molten rock, resulting in the formation of volcanoes.
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Tectonic forces
Forces that result from the movement of materials within the planet's mantle, leading to geological features like ridges and cracks.