The Red Moenkopi Formation and Layered Strata - Capitol Reef National Park


The Red Moenkopi Formation at Capitol Reef National Park showcases layered sedimentary strata formed during the Triassic period, approximately 240 million years ago. Composed of shale, siltstone, and mudstone, these layers reflect fluvial deposits from ancient river systems. Erosion has sculpted the formation into striking patterns, with ripple marks and desert varnish adding texture and depth. The vivid red hues, caused by iron oxidation, contrast dramatically with overlying formations, highlighting the park's complex geologic history shaped by tectonic uplift and erosion in Utah's arid landscapes.


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Photo credit: © Phil Degginger / Alamy / Afripics
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