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What causes the rate of weathering to differ?
The rate of weathering can differ due to factors such as climate (temperature and moisture), type of rock or mineral being weathered, presence of vegetation, human activities, and exposure to air and water. Different environmental conditions can accelerate or slow down the process of weathering.
What type of chemical weathering is caused when rocks sit in saltwater?
The type of chemical weathering caused when rocks sit in saltwater is known as salt weathering. Saltwater infiltrates the cracks and pores in rocks, and as the water evaporates, the salt crystals it leaves behind exert pressure on the rock, causing it to weaken and break apart over time.
Weathering in tropical climates can produce residual ores rich in?
weathering in tropical climates can produce residual ores rich in bauxite, iron, and manganese due to the combination of high temperature, humidity, and heavy rainfall. These conditions promote chemical weathering that leaches out soluble materials, leaving behind concentrated deposits of these minerals.
In which processes are rocks broken up and moved to different locations?
Frost heave is an interesting process but acting in polar regions of course. The thermal expansion and contraction of the soil matrix is such that the component materials separate according to their size. So eventually, a Frost Polygon develops, in which the larger stones have migrated to the perimeter of the polygon, and the fine material concentrates in the interior. Slightly raised as well. These Polygons are irregular shapes, but with fairly straight sides. Quite striking to see. Freeze-Thaw cycles will act on massive rocks as well - rocks the size of houses. The temperature of the interior of such a rock does not change very much, because of the poor thermal conductivity, and the great thermal mass. But any surface irregularity may be subject to a daily freeze-thaw cycle, and this tends to spall off any irregularities, and the rock gradually becomes more round. The spalls may be several hundred mm in surface dimension, but only a few cm in thickness. Not uncommon to find in mountainous regions. The transport of rocks is a water process, either by glacier, or by a river. A glacier will actually pluck rocks from rock wall bounding the glacier, particularly in the upper reaches where schrunds develop. The glacier will freeze to the rock, but as the glacier is moving, particularly in the upper snowfields, it will pull away any rock that has a fracture line behind it. The collisions in a river will soon round the rock.
How is tafoni formed?
Tafoni, also called 'honeycomb weathering' are a group of significant pits formed in the surface of a rock. Very common in coastal areas, where the regular wet-dry cycles are obvious. Caused by differential weathering of the rock, and the 'lands' between the pits are often quite thin and lacy in appearance. The presence of salt is thought to be an important feature of this type of weathering.
What is the driving force behind weathering deposition and erosion?
Temperature Change is the driving force behind Weathering by Exfoliation. Continuous alternation of wetting and drying of rock masses results to an uneven expansion and contraction of their surface, as a result of this, an heaving and sagging mechanism is put in place and this eventually results to sheeting of the rock surface, which latter falls off.
Does the Sun play role in weathering?
The sun can cause a form of weathering known as thermal stress weathering / insolation weathering (or more informally as onion skin weathering). This is a process whereby surface material of a rock expands due to heating by the suns radiation and then contracts again when it cools at night. As only the surface of the rock undergoes this expansion and contraction it begins to de-laminate or break away from the underlying material due to the differential stresses that develop in the rock.
What is the principle used in constructing a liquid thermometer?
The principle behind a liquid thermometer is thermal expansion. As the temperature increases, the liquid inside the thermometer expands, causing it to rise in the narrow tube, giving a reading of the temperature.
Where is the thermal expansion valve on a 1999 GMC Yukon?
I think its behind the plastic on the back passenger side. Between the cargo glass and the passenger side back seat door glass.
What is the force behind weathering by crystal growth?
it is the force
What is the weathering and wearing of rock called?
weathering is wind erosin what it does is when wind blows it leaves behind pebbles and boulders.
Where is the expansion valve on a93 Saturn?
On the firewall behind the throttlebody. On the firewall behind the throttlebody.
Where is the thermal fuse Dodge Grand Caravan?
behind glove box.
Where is the location of the expansion valve and drier for 94 Acura Integra?
The drier is on the drivers side directly behind the headlight. The expansion valve is located behind the glove box inside of the evaporator case.
What was Not a reason behind new imperialism and expansion?
The lack of atmosphere on the moon
What energy occurs in a refrigerator?
In a refrigerator, electrical energy is converted into mechanical energy by a motor. The motor drives a compressor, and this compresses and heats the refrigerant. Mechanical energy is converted into thermal energy in this process. The hot refrigerant is cooled in the cooling coils behind or beneath the appliance, and the cooler gas is "sprayed" through an expansion valve connected to the cooling coils inside the unit. The releasing of the pressure of the refrigerant allows expansion, and with expansion comes cooling.
The location of the expansion valve for a 97 Toyota Camry and if behind the dash do you have to pull the dash out?
The expansion valve is located on the passenger side of the vehicle behind the dashboard. To gain access to it you will have to remove the glove box and the dash.
