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What gem is found in the gravel of riverbeds?
Diamonds are the gem that can be found in the gravel of riverbeds. The rough diamonds are carried from their original source in the earth's mantle by volcanic activity and erosion, eventually ending up in riverbeds where they can be mined.
What was called when gold found on the surface of the earth?
Surface gold deposits are often referred to as placer deposits. These are formed by the erosion of gold-containing rocks and the subsequent deposition in riverbeds, beaches, or other sedimentary environments.
Is sandstone found in a lot of places or a little of places?
Sandstone is found in many places around the world, as it is a common sedimentary rock formed from sand grains. It can be found in deserts, beaches, riverbeds, and even in some mountain ranges.
What liquid formed channels on the surface of Mars long ago?
Water is believed to have formed channels on the surface of Mars long ago. Evidence such as dried-up riverbeds, erosion patterns, and mineral deposits indicate that water once flowed on the planet, shaping its surface.
Is sandstone a continental deposit?
Yes, sandstone is typically formed in continental environments, such as deserts, beaches, and riverbeds. It is commonly composed of sand-sized grains that have been compacted and cemented together over time.
What two features found on mars that provide evidence for the possibility of liquid water on the planet?
Dry riverbeds and sedimentary substances that can only be formed in a liquid environment.
What evidence would you put forward to prove mars had water at one time?
Dry riverbeds and certain chemical compounds that can only be formed in a wet environment.
What gem is found in the gravel of riverbeds?
Diamonds are the gem that can be found in the gravel of riverbeds. The rough diamonds are carried from their original source in the earth's mantle by volcanic activity and erosion, eventually ending up in riverbeds where they can be mined.
When is alluvial formed?
Alluvial deposits are formed when water transports and deposits sediment, such as sand, silt, and gravel, in low-lying areas like riverbeds, floodplains, and deltas. These deposits accumulate over time as the water flow decreases and the sediment settles.
Abrasion is an example of?
riverbeds alone the shore
What sand is found in riverbeds?
sandy soil
What are riverbeds most commonly made of?
Riverbeds are most commonly made of small little pebbles that have been moved around from the current of the river. It is also made up of dirt and small pieces of gravel and rocks. Riverbeds never stay the same they are always changing.
What are the dried riverbeds in Egypt called?
known as a wadi
What are riverbeds that are dry most of the year?
Wadi(s)
What was called when gold found on the surface of the earth?
Surface gold deposits are often referred to as placer deposits. These are formed by the erosion of gold-containing rocks and the subsequent deposition in riverbeds, beaches, or other sedimentary environments.
What rock is found near lakes and riverbeds?
sedimenry rocks
What are some surface features formed by water erosion?
Some common surface features formed by water erosion include valleys, canyons, river channels, and waterfalls. Water erosion can also create features like meanders and deltas in river systems, as well as coastal cliffs and caves along the coastline.
