Piles of eroded sediments. Which may or may not become sedimentary rock over time.
Shoreline deposits of sediment, also known as coastal sediments, are materials such as sand, gravel, silt, and clay that accumulate along the edges of bodies of water, including oceans, lakes, and rivers. These deposits are shaped by various processes, including wave action, currents, and tidal movements, which transport and redistribute sediments along the shoreline. Over time, these sediments can form features like beaches, dunes, and deltas, playing a crucial role in coastal ecosystems and geology.
weathering and erosionWeathering is the process by which rocks are broken apart into sediments. Weathering can be either physical or chemical. Erosion is the process by which those sediments are moved to different areas. Erosion can be powered by wind, water, or ice in the form of glaciers.
The action of water and gravity cause them to form in layers.
Sediments, deposition and geological time.
at subduction zones
sedimentary rocks :)
Sedimentary rock is formed from sediments deposited in bodies of water. Examples of sedimentary rocks that can form in this way include limestone, shale, and sandstone. These rocks are typically composed of particles that have been weathered, transported, and compacted over time.
When Wind deposits sediments in a location.
to form landforms
Glacial deposits may form when glaciers move along mountains and break off sediments. These deposits can include a variety of sediment types such as till, moraines, and erratic boulders. As the glacier moves, it erodes and transports these sediments, eventually depositing them once the glacier melts.
Fine-grained wind-blown sediments, also known as loess, are deposits of silt-sized particles that have been transported and deposited by the wind. These sediments are typically unconsolidated and can form extensive and thick layers covering large areas. Loess deposits are common in arid and semi-arid regions and play a significant role in shaping landscapes and soil fertility.
Sediments transported by water and wind can form various sedimentary structures such as sand dunes, river deltas, beaches, and alluvial fans. These structures develop as the sediments settle and accumulate in response to the flow dynamics and energy of the transporting medium.
Gold-bearing sediments are rocks or soil deposits that contain gold particles. These sediments typically form in areas where gold-bearing minerals are weathered and eroded by natural processes, such as water or wind, leading to the accumulation of gold particles in sediment deposits. Mining activities often target these sediments to extract the gold.
Formed when a mixture of sediments that a glacier deposits directly on the surface
Formed when a mixture of sediments that a glacier deposits directly on the surface
drifting
Sand dunes are the most common form of wind deposit, and they constantly change and move as the wind erodes and reshapes them. Sand dunes are dynamic landforms that can migrate and shift direction over time due to the prevailing wind patterns.