Granite is a type of igneous rock that is composed of very hard minerals, such as quartz and feldspar. These minerals make granite highly resistant to weathering and erosion. Additionally, granite has a coarse grain structure, which makes it more resistant to the physical forces that break down rocks. This combination of hard minerals and a strong structure allows granite to erode at a slower rate compared to other rocks.
Its actually more about the composition of the rock than the shape, the rounded rocks tend to be of a softer material such as sandstone, limestone etc which erode quicker and as such form into rounded shapes were harder rocks such as granite are more resistant to erosion and therefore its the softer materials that erode and leave the sharp edges of granite.
Millions of years
the marble would erode more rapidly.
the marble would erode more rapidly.
the marble would erode more rapidly.
Its actually more about the composition of the rock than the shape, the rounded rocks tend to be of a softer material such as sandstone, limestone etc which erode quicker and as such form into rounded shapes were harder rocks such as granite are more resistant to erosion and therefore its the softer materials that erode and leave the sharp edges of granite.
Millions of years
Generally yes, but not in all cases - if there is a softer band of rock in the river bed then the river will erode this quicker and cause a deeper portion, or if the river flows quicker at one point then it will again erode quicker
Yes, granite can erode over time due to natural weathering processes like physical and chemical weathering. Although granite is a hard and durable rock, exposure to elements such as water, wind, and temperature changes can cause gradual erosion and breakdown of its structure.
Water eroding granite depends on factors like flow rate, acidity, and presence of other minerals. In general, it can take hundreds of thousands to millions of years for water to significantly erode granite surfaces through processes like abrasion and chemical weathering.
the marble would erode more rapidly.
the marble would erode more rapidly.
the marble would erode more rapidly.
the marble would erode more rapidly.
Salt water will erode earth material faster than regular water due to its higher salinity and chemical composition, which increases its corrosive properties. Salt water can accelerate the weathering and breakdown of rocks and minerals through chemical reactions, leading to faster erosion compared to regular water.
A steep slope, due to the velocity of the water/runoff.
Cornwall, like most places, have a mixture of rocks, but it is most famous for granite and china clay. Granite is an intrusive, igneous rock - it forms from volcanic activity underground, the covering rocks erode over time and expose the granite. China clay is formed from decayed feldspars - which are associated with granite.