Which is least resistant to weathering?
So it makes sense that isolated tetrahedra are the least stable in weathering, while quartz, which is completely formed of interlocking silica tetrahedra with no intervening cations, is the most stable.
What type of rock is least resistant to weathering?
Igneous rocks, especially intrusive igneous rocks such as granite, weather slowly because it is hard for water to penetrate them. Other types of rock, such as limestone, are easily weathered because they dissolve in weak acids.
What has the least impact on weathering?
A cold, dry climate will produce the lowest rate of weathering. A warm, wet climate will produce the highest rate of weathering. The warmer a climate is, the more types of vegetation it will have and the greater the rate of biological weathering.
What material is most resistant to weathering?
Sandstone is a sedimentary rock that is highly resistant to weathering. Other sedimentary rocks you will encounter are mudstone and siltstone.
Is shale resistant to weathering?
The material found in sediment grains also affects the rate of weathering. The mechanical weathering of rocks like shale and sandstone causes their grains to break up over time and become sand and clay particles. … These rocks and other similar types tend to resist weathering.
Is Marble resistant to weathering?
Marble is composed of a mineral that is resistant to chemical weathering (quartz), whereas granite is composed of minerals less resistant to weathering (like calcite). … Marble is composed of calcite, a mineral strongly resistant to weathering, whereas granite is composed of quartz, a mineral strongly reactive in water.
Which rock layer is the most resistant to weathering?
Igneous rocks are usually solid and are more resistant to weathering. Intrusive igneous rocks weather slowly because it is hard for water to penetrate them. Sedimentary rocks usually weather more easily.
What is the slowest agent of weathering and erosion?
Ice is the slowest agent of erosion because most glaciers cover very little ground in a day.
In what environment would weathering rate be fastest slowest?
Weathering occurs fastest in hot, wet climates.
It occurs very slowly in hot and dry climates. Without temperature changes, ice wedging cannot occur. In very cold, dry areas, there is little weathering.
Is Sandstone resistant to erosion?
Sandstones are significant for a variety of reasons. Volumetrically they constitute between 10 and 20 percent of Earth’s sedimentary rock record. They are resistant to erosion and therefore greatly influence the landscape.
Which of the following minerals is least stable in weathering environments?
72 Cards in this Set
|What ist the general process by which rocks are broken down at the Earth’s surface||Weathering|
|Which of the following minerals is least stable at the Earth’s surface 1) Hematite 2) Olivine 3) Pyroxene 4) Quartz||2) Olivine|
Is shale less resistant to erosion?
In humid climates like eastern north America, fine grained sedimentary strata, such as shale, and carbonate units, such as limestone, are less resistant to weathering and form valleys. … In arid climates like the desert southwest limestone is resistant to weathering and forms cliffs just as sandstones do.