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Tectonic uplift millions of years ago formed Edwards Plateau in Texas, shown in this @Space_Station astronaut photo.

Darker soils of the Blackland Prairies can be seen between the urban areas of Austin and San Antonio. https://go.nasa.gov/3zYsim9
#NASAEarth
in reply to NASA

alt headline…

“Tectonic uplift or I-35 traffic:
Which of these is the true cause of geological change in Central Texas?”

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