sedimentary rock

Cultural  

1. Rock that has formed through the deposition and solidification of sediment, especially sediment transported by water (rivers, lakes, and oceans), ice (glaciers), and wind. Sedimentary rocks are often deposited in layers, and frequently contain fossils.

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Limestone and shale are common sedimentary rocks.

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sedimentary rock

These giant insects, often called "griffinflies," were first identified from fossil impressions found in fine-grained sedimentary rock in Kansas nearly a century ago.

From Science Daily ● Apr. 25, 2026

For centuries, Lake Maracaibo’s environs were known for natural seepage of oil rising to the surface from sedimentary rock, a phenomenon also seen in sites like Los Angeles’ La Brea Tar Pits.

From Los Angeles Times ● Feb. 15, 2026

Shale is, after all, the most common sedimentary rock and found all over the world.

From The Wall Street Journal ● Feb. 10, 2026

Companies drill wells for the gas and, in many cases, shoot water and chemicals into the sedimentary rock to force methane up to the surface where they collect it and pipe it to refineries.

From Seattle Times ● Mar. 4, 2024

In the same region the Carboniferous limestone attains so unusual a thickness— namely, more than 4000 feet— as to appear to compensate in some measure for the deficiency of contemporaneous sedimentary rock.

From The Student's Elements of Geology by Lyell, Charles, Sir