The most obvious feature of sedimentary rock is its layering.
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Free 5-day trial Discover how geologists study the layers in sedimentary rock to establish relative age.
Relative time places events or formations in order based on their position within the rock record relative to one another using six principles of relative dating.
Relative time can not determine the actual year a material was deposited or how long deposition lasted; it simply tell us which events came first.
Hutton viewed tilted strata as having been initially deposited horizontally, and then were subsequently deformed (tilted and folded) by the forces of Earth's internal heat engine.
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These rocks are tilted due to deposition on the non-horizontal surfaces of primitive rocks.
This aspect of Werner's model was useful for explaining the origin of tilted sedimentary rocks.
This means that a quartz sandstone deposited 500 million years ago will look very similar to a quartz sandstone deposited 50 years ago.