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Ventifacts have also been discovered on Mars, where such sharp immobile rocks have caused significant damage to the wheels of the Curiosity rover. [4] An example of a Martian ventifact was named Jake Matijevic. By analyzing its shape, it was possible to reconstruct the main wind direction which sculpted the rock. [5]
A dreikanter from the Wind River Basin, Wyoming, USA. Property of Western Washington University. Photo by AJ Wakefield, 2012. A dreikanter is a type of ventifact that typically forms in desert or periglacial environments due to the abrasive action of blowing sand.
Some examples are calderas, maars, sinkholes, glacial cirques, igneous intrusions, ring dikes, salt domes, geologic domes, ventifacts, tuff rings, forest rings, and others. Conversely, an impact crater may originally be thought as one of these geological features, like Meteor Crater (as a maar ) or Upheaval Dome (as a salt dome).
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Ventifacts: Rock samples that demonstrate the erosion caused by aeolian processes over time. Erosional processes by wind can result in smoothing and polishing as well as the creation of grooves. Hematite rich ventifact from Windy Gap, Wyoming with extensive polishing by wind. Mushroom rocks
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Today's Wordle Answer for #1342 on Thursday, February 20, 2025. Today's Wordle answer on Thursday, February 20, 2025, is ROACH. How'd you do? Up Next:
A yardang near Meadow, Texas) (USDA photo Yardangs in the Qaidam Desert, Qinghai Province, China.. A yardang is a streamlined protuberance carved from bedrock or any consolidated or semiconsolidated material by the dual action of wind abrasion by dust and sand and deflation (the removal of loose material by wind turbulence). [1]