A visible exposure of bedrock or ancient rock formations at the Earth's surface, where overlying soil and loose material have been removed by erosion or excavation. These exposures reveal the underlying geological structure.
Compound of 'out' and 'crop,' where 'crop' comes from Old English 'cropp' meaning 'head' or 'top.' The geological sense developed in the 19th century, referring to rock that 'crops out' or appears at the surface.
Road cuts through mountains are like giant textbooks - they create artificial outcrops that reveal millions of years of Earth's history in the exposed rock layers! Geologists can read these rock exposures like pages in a book, determining ancient climates, sea levels, and even major extinction events from the patterns in the stone.
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