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bedding plane

American  

noun

Geology.
  1. the surface that separates one stratum, layer, or bed of stratified rock from another.


Etymology

Origin of bedding plane

First recorded in 1895–1900

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

One area of the site even reveals where the paths of a sauropod and megalosaurus once crossed, with Nichols saying the footprints were on the "same bedding plane".

From BBC • Jun. 10, 2026

"As we're walking up these turbidites, I'm looking around and this beautifully rippled bedding plane caught my eye," says Martindale.

From Science Daily • Mar. 8, 2026

They are fixed on a bedding plane, and so provide more reliable evidence of exactly when humans left them.

From Salon • Oct. 1, 2021

Visible in exposed outcroppings, each bedding plane indicates a change in sediment deposition conditions.

From Textbooks • Jan. 1, 2017

Its smooth upper surface, which represented a bedding plane, was covered with a thin coating of silt or fine clay which adhered to the block.

From Fossil Ice Crystals An Instance of the Practical Value of "Pure Science" by Udden, Johan August

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