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Gravity plays a significant role in the movement of rock fragments. Rock fragments are often transported downhill by gravity through processes like landslides, rockfalls, and creep. The weight and slope of the terrain determine the speed and distance that rock fragments can travel due to gravity.
Rock fragments that are squeezed together tightly form a sedimentary rock called breccia. Breccia is composed of angular fragments of rocks that are cemented together by a fine-grained matrix. It typically forms near fault zones or where there has been significant rockfall or landslides.
The grains of a rock are the individual mineral particles that make up the rock's composition. These grains can vary in size, shape, and color, depending on the type of rock and the process by which it was formed. Fine-grained rocks have smaller grains, while coarse-grained rocks have larger grains.
Granite typically has a coarse-grained texture, meaning that the individual mineral grains are large enough to be seen with the naked eye. The grains in granite are usually interlocking, giving the rock its strong and durable structure.
The name for weathered rock fragments is "sediment." Sediment can be composed of a variety of materials, including broken pieces of rock, minerals, and organic matter that have been eroded and transported by wind, water, or ice.
The movement of rock fragments is called erosion.
Grains: Grains that are not crystals in rock do not have flat shiny faces. They are rounded, like grain of sand, or jagged, like a piece of broken rock. Grain Size: Grain size in rocks can mean the size of crystal grains or of fragments: Coarse Grained: most of the rock is made of grains as largeas rice, or larger.
An allochem is a grain of rock in a carbonate rock.
A conglomerate, classified by rounded rock fragments larger than 2cm compacted and cemented into a rock.
A clastic rock.
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Gravity plays a significant role in the movement of rock fragments. Rock fragments are often transported downhill by gravity through processes like landslides, rockfalls, and creep. The weight and slope of the terrain determine the speed and distance that rock fragments can travel due to gravity.
All clastic rocks are made up by rock fragments of different size. Siliciclastic rocks (rocks composed chiefly of broken up silicate material) are classified depending on what the predominant grain size is, how wide the spread in grain size is, what the form of the grains are and what the contributing minerals are. Very badly sorted clastic rocks with rounded fragments chiefly of gravel size is called conglomerate. Well sorted silicate material, mainly of sizes between 0.1 to 0.2 mm diameter, is called sandstone (made up of fine sand).
A sedimentary rock that forms when rock fragments are squeezed together is called a conglomerate. This rock is composed of rounded fragments that have been cemented together by a finer material, such as sand or mud.
Large angular rock fragments describes an agglomerate. This usually happens in volcanic vents.
Rock fragments that are squeezed together tightly form a sedimentary rock called breccia. Breccia is composed of angular fragments of rocks that are cemented together by a fine-grained matrix. It typically forms near fault zones or where there has been significant rockfall or landslides.