The size of the grains in a sedimentary rock can be determined by examining the texture of the rock. Coarser grains indicate a larger grain size, while finer grains indicate a smaller grain size. Other features that can provide clues to grain size include the sorting (uniformity of grain sizes) and rounding of the grains.
The features that indicate how a sedimentary rock is layered include bedding planes, which represent the boundaries between different layers of sediment, and graded bedding, where grains are sorted by size within a layer. Additionally, cross-bedding can show inclined layers within a sedimentary rock, indicating the direction of sediment deposition.
PYROCLASTIC ROCKS AND TEPHRA, Pyroclasts .
A weather vane tells you the direction from which the wind is blowing. It is typically found on top of buildings and structures to help determine wind direction.
meterologists
Shadows can provide information about the depth and direction of geological features, such as mountain ranges or volcanic peaks, on the surface of the Earth. By studying the lengths and angles of shadows, geologists can infer the approximate shape and elevation of land formations, helping to better understand the Earth's interior composition and structure.
texture
Sedimentary rocks are often deposited in layers as strata. The feature that tells how a sedimentary rock is layered is called the bedding.
The features that indicate how a sedimentary rock is layered include bedding planes, which represent the boundaries between different layers of sediment, and graded bedding, where grains are sorted by size within a layer. Additionally, cross-bedding can show inclined layers within a sedimentary rock, indicating the direction of sediment deposition.
Sedimentary rocks are often deposited in layers as strata. The feature that tells how a sedimentary rock is layered is called the bedding.
A key.
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Talligator
Grain size is more important for determining the classification of clastic sedimentary rocks, such as sandstone or shale. Composition is more important for determining the classification of chemical sedimentary rocks, such as limestone or rock salt. Layering is more important for identifying the structure of sedimentary rocks, such as bedding in sandstone or shale.
PYROCLASTIC ROCKS AND TEPHRA, Pyroclasts .
Gerard tells his employees that the company website needs to be redesigned. He tells them what features it should have and when it's due, but let's them decide on the design.
Gerard tells his employees that the company website needs to be redesigned. He tells them what features it should have and when it's due, but let's them decide on the design.
Roundness of sediment grains can provide information about the distance the grains have traveled from their source. Well-rounded grains have likely traveled a long distance and experienced multiple episodes of erosion and transport. On the other hand, angular grains are typically indicative of shorter transport distances and limited weathering.