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Were do the thickest deposits of terrigenous sediment typically form?
The thickest deposits of terrigenous sediment typically form in areas close to continental margins, where there is a high input of sediment from rivers, glaciers, and wind. These areas can include continental shelves, slopes, and fans.
What are continental deposits of gravel and sand?
Continental deposits of gravel and sand are sedimentary accumulations formed by the erosion and weathering of rocks on land, transported primarily by water, wind, or ice. These deposits typically occur in riverbeds, floodplains, and glacial areas, where the sediments settle due to decreased energy in the transporting medium. They play a crucial role in landscape formation and are often significant resources for construction and other industrial uses. Additionally, these deposits can host important ecosystems and aquifers, contributing to biodiversity and water supply.
Where is Siliceous sediment found?
Siliceous sediment is commonly found in areas with high biological productivity, such as offshore continental margins and deep-sea deposits. It can also be present in diatomaceous earth deposits and in shallow marine environments near volcanic islands.
How do glacial deposits support the idea of continental drift?
With continents in their present positions, the till deposits do indicate erratic glacier motion. When continents are fitted together, they show much more streamlined motion of the glacier from the southern Africa and the Northern Australia outward.
Where are the thickest sedimentary deposits found at?
The thickest sedimentary deposits are typically found in sedimentary basins, such as rift valleys, continental shelves, and deep-sea trenches. These areas accumulate sediments over millions of years due to processes like erosion, deposition, and tectonic activity. The thickness of the deposits can range from a few kilometers to tens of kilometers deep.
How many petroleum deposists are in Maine?
Maine does not have any oil deposits-well, at least no discovered oil deposits.
Clues that support continental drifts?
glacial deposits
What is the importance of continental shelf in the exploration of crude oil?
The continental shelf is important for crude oil exploration because it is a prime location for oil deposits to accumulate. The sedimentary rocks found in continental shelves often contain organic materials that can transform into oil under the right conditions. Additionally, the shallow waters of the continental shelf are easier and less expensive to access for drilling operations.
How much rock could the deepwater horizon drill through to reach the oil?
The Deepwater Horizon could drill through thousands of feet of rock to reach oil deposits deep below the seabed. The precise amount of rock would depend on the specific location and depth of the oil reservoirs being targeted.
How do glacial deposits support continental drift?
Glacial deposits help support the theory of continental drift by showing that ice sheets existed in areas that are now far from the Earth's poles. These deposits indicate that the continents were once connected in a single supercontinent, supporting the idea that they have since moved to their current positions over time.
Were do the thickest deposits of terrigenous sediment typically form?
The thickest deposits of terrigenous sediment typically form in areas close to continental margins, where there is a high input of sediment from rivers, glaciers, and wind. These areas can include continental shelves, slopes, and fans.
How do ancient glacial deposits in Africa India Australia and South America support the idea of continental drift?
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Why is the presence of coal deposits in cold regions an indication of continental drift?
The presence of coal deposits in cold regions suggests continental drift because coal forms from the accumulation of plant material in warm, swampy environments. When coal deposits are found in areas that are now cold, it indicates that those regions were once located closer to the equator, where the climate was suitable for dense vegetation. This supports the theory of continental drift, which posits that continents have moved over geological time from their original positions. The alignment of coal deposits with past tropical conditions provides evidence of the shifting continents.
What is the sharp drop from the continental shelf to continental rise is called?
The sharp drop from the continental shelf to the continental rise is called the continental slope. This transition zone marks the boundary between the relatively shallow waters of the continental shelf and the deeper ocean floor. The slope typically features steep gradients and can be characterized by various geological formations and sediment deposits.
True or false Petroleum and coal can be mined from the continental shelf.?
False. Petroleum and coal are typically extracted from underground sources on land rather than from the continental shelf, which is a submerged extension of a continent. On the continental shelf, oil and gas deposits can be found and extracted.
What are continental deposits of gravel and sand?
Continental deposits of gravel and sand are sedimentary accumulations formed by the erosion and weathering of rocks on land, transported primarily by water, wind, or ice. These deposits typically occur in riverbeds, floodplains, and glacial areas, where the sediments settle due to decreased energy in the transporting medium. They play a crucial role in landscape formation and are often significant resources for construction and other industrial uses. Additionally, these deposits can host important ecosystems and aquifers, contributing to biodiversity and water supply.
Are geosynclines in the sea or on land?
A geosyncline is a belt of sedimentary deposits that accumulate within the ocean along the margin of a continent - on the continental shelf and slope.
