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This Concept Map, created with IHMC CmapTools, has information related to: Plate Tectonics on Venus, active plate tectonics due to the existance of volcanic rises, volcanic rises are dome-like bulges in the crust, deformities in the plateaus like meteor craters, inability for magma to get through the lithosphere suggests thickening of lithosphere over time, plateaus indicate older age, Venus once had active plate tectonics, hot spot plumes broke through the crust something that could only occur if the lithosphere was thin at some point, older age due to deformities in the plateaus, volcanic rises cause inability for magma to get through the lithosphere, plateaus indicate hot spot plumes broke through the crust, active plate tectonics due to the existance of plateaus