12 s070502 b_weathering ppt
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This document discusses two main types of weathering - mechanical and chemical weathering. Mechanical weathering breaks rock down physically into smaller pieces without changing the chemical composition, such as through ice wedging, exfoliation, thermal expansion, and biotic processes. Chemical weathering breaks rock down through chemical reactions that alter the chemical composition of minerals, such as oxidation and carbonation which involve reactions with oxygen and carbon dioxide respectively. Both types of weathering are the first step in forming soil and sedimentary rock.
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Weathering 2013
The document discusses weathering, which is the breakdown of rocks into smaller pieces over time without movement. There are two main types of weathering: mechanical and chemical. Mechanical weathering involves physical processes like ice wedging, abrasion, and exfoliation that break rocks apart. Chemical weathering involves chemical reactions that alter the composition of rocks, brought on by water, carbon dioxide, oxygen, and organic acids. Both types of weathering gradually change the Earth's surface over thousands of years.
Weathering
This document defines weathering as the breakdown of rocks through three main processes: biological, chemical, and physical weathering. It provides details on each type of weathering. Chemical weathering involves carbon dioxide mixing with rainwater to form a weak acid that dissolves rocks like limestone. Biological weathering occurs as plants and animals break rocks down by growing in cracks or digging. Physical weathering includes onion skin weathering (exfoliation) where temperature changes cause rock layers to peel and freeze-thaw weathering where water freezing in cracks breaks rocks apart. The document instructs students on assignments to complete about the conditions that cause the strongest chemical and physical weathering.
Weathering and erosion
Weathering and erosion break down Earth's crust into smaller pieces through physical and chemical processes. Physical weathering breaks rocks into smaller pieces through external forces like frost wedging, friction, and animal burrowing. Chemical weathering uses chemical processes like water dissolving rock, oxygen combining with iron to form rust, and carbon dioxide forming carbonic acid to break down rock materials. Biological weathering also contributes through actions of plant roots and animal burrowing.
Weathering and Erosion
This document discusses weathering and erosion. It defines weathering as the breakdown of rocks into smaller pieces through physical or chemical processes. Physical weathering breaks rocks down mechanically through processes like frost wedging or plant roots. Chemical weathering uses chemical agents like water, oxygen, carbon dioxide and acids to break rocks down chemically over time. One example of chemical weathering discussed is how carbon dioxide dissolves in water to form carbonic acid, which easily weathers limestone. The document also defines erosion as the movement of rock and soil by agents such as water, ice, wind or gravity. Specific types of erosion mentioned include water erosion through rivers/streams and runoff, ice erosion through glaciers, and wind erosion
Weathering of Rocks
Weathering is the process of breaking down rocks into smaller pieces through mechanical or chemical means. Mechanical weathering physically breaks rocks down without changing their chemical composition, through processes like freezing and thawing, abrasion, and exfoliation. Chemical weathering changes the minerals in rocks through reactions with oxygen, carbon dioxide, and water to form acids, resulting in processes like oxidation, carbonation, and hydrolysis. Examples of mechanical weathering include abrasion and freezing and thawing, while examples of chemical weathering include oxidation, carbonation, and hydrolysis.
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This document defines and describes the three main types of weathering: physical, chemical, and biological. Physical weathering breaks rocks into smaller pieces through temperature changes and water, such as exfoliation weathering caused by hot temperatures and freeze-thaw weathering caused by melting and freezing water. Chemical weathering occurs as acid in rainwater reacts with minerals in rocks, either slowly over time from carbonic acid or more rapidly from acid rain. Biological weathering results from plants and animals breaking rocks into fragments.
Types of Weathering
There are three main types of weathering: biological, chemical, and physical. Biological weathering involves living organisms that can cause mechanical or chemical breakdown of rocks through processes like tree roots growing and producing acids. Chemical weathering is caused by rainwater reacting with minerals in rocks to form new minerals and salts. It requires water and occurs more in warm, damp climates. Physical weathering results from temperature changes that cause rocks to expand and contract, eventually breaking them apart without chemical changes. It is more common in mountainous and desert areas.
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Weathering 2013
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This document defines weathering as the breakdown of rocks through three main processes: biological, chemical, and physical weathering. It provides details on each type of weathering. Chemical weathering involves carbon dioxide mixing with rainwater to form a weak acid that dissolves rocks like limestone. Biological weathering occurs as plants and animals break rocks down by growing in cracks or digging. Physical weathering includes onion skin weathering (exfoliation) where temperature changes cause rock layers to peel and freeze-thaw weathering where water freezing in cracks breaks rocks apart. The document instructs students on assignments to complete about the conditions that cause the strongest chemical and physical weathering.
Weathering and erosion
Weathering and erosion break down Earth's crust into smaller pieces through physical and chemical processes. Physical weathering breaks rocks into smaller pieces through external forces like frost wedging, friction, and animal burrowing. Chemical weathering uses chemical processes like water dissolving rock, oxygen combining with iron to form rust, and carbon dioxide forming carbonic acid to break down rock materials. Biological weathering also contributes through actions of plant roots and animal burrowing.
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This document discusses weathering and erosion. It defines weathering as the breakdown of rocks into smaller pieces through physical or chemical processes. Physical weathering breaks rocks down mechanically through processes like frost wedging or plant roots. Chemical weathering uses chemical agents like water, oxygen, carbon dioxide and acids to break rocks down chemically over time. One example of chemical weathering discussed is how carbon dioxide dissolves in water to form carbonic acid, which easily weathers limestone. The document also defines erosion as the movement of rock and soil by agents such as water, ice, wind or gravity. Specific types of erosion mentioned include water erosion through rivers/streams and runoff, ice erosion through glaciers, and wind erosion
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Weathering is the process of breaking down rocks into smaller pieces through mechanical or chemical means. Mechanical weathering physically breaks rocks down without changing their chemical composition, through processes like freezing and thawing, abrasion, and exfoliation. Chemical weathering changes the minerals in rocks through reactions with oxygen, carbon dioxide, and water to form acids, resulting in processes like oxidation, carbonation, and hydrolysis. Examples of mechanical weathering include abrasion and freezing and thawing, while examples of chemical weathering include oxidation, carbonation, and hydrolysis.
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There are three main types of weathering: biological, chemical, and physical. Biological weathering involves living organisms that can cause mechanical or chemical breakdown of rocks through processes like tree roots growing and producing acids. Chemical weathering is caused by rainwater reacting with minerals in rocks to form new minerals and salts. It requires water and occurs more in warm, damp climates. Physical weathering results from temperature changes that cause rocks to expand and contract, eventually breaking them apart without chemical changes. It is more common in mountainous and desert areas.
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Weathering is the breakdown of rocks into smaller pieces through either physical or chemical processes. Physical weathering breaks rocks mechanically through processes like frost wedging or plant roots, while chemical weathering uses chemical agents like water, oxygen, carbon dioxide, and acids to decompose the minerals within rocks. Erosion is the process by which weathered material is transported and deposited elsewhere by forces including water, wind, ice, and gravity through processes such as river transport, glacial erosion, and landslides.
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This document defines and describes the main types of weathering processes that occur at the Earth's surface: mechanical, chemical, and biological. Mechanical weathering involves physical breakdown through processes like frost wedging and abrasion without changing the rock's chemical composition. Chemical weathering decomposes rocks through reactions with substances like carbon dioxide, water, and oxygen. Biological weathering disintegrates rocks through organism activities like plant roots, lichen/algae growth, and burrowing. Different rock types and climates result in variable weathering rates.
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Mechanical and chemical weathering break down rocks into smaller pieces. Mechanical weathering causes physical disintegration through processes like frost wedging, plant roots, and temperature changes without altering the rock's chemical composition. Chemical weathering alters rocks through chemical reactions with water, oxygen, carbon dioxide, and acids. Water is the main agent of chemical weathering, dissolving minerals and rocks through hydrolysis and hydration. Carbon dioxide forms carbonic acid, which breaks down minerals like limestone. Oxidation also contributes to chemical weathering.
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The document discusses different types of weathering that shape coastlines. It describes mechanical, chemical and biological weathering. Mechanical weathering includes freeze-thaw weathering where water enters cracks and expands when freezing, cracking the rock. Chemical weathering dissolves rocks through acid rain. Biological weathering occurs when plant roots and burrowing animals break rocks apart.
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Weathering breaks rocks and minerals down into smaller pieces through mechanical or chemical processes. Mechanical weathering breaks rocks physically without changing their composition, while chemical weathering alters their chemical makeup. Erosion transports weathered materials from their source, depositing them elsewhere through various agents like water, wind, glaciers, and gravity. These processes form soil and create layers of sedimentary rock.
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Chemical weathering involves the breakdown of rocks through chemical processes involving water and atmospheric gases. The main types of chemical weathering are oxidation, hydration, hydrolysis, carbonation, and solution. These processes weaken rocks through reactions with water and acids. Chemical weathering is common in warm, humid climates and produces dull, pitted rock surfaces.
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The document provides an outline on the topics of weathering, sediments, and sedimentary rocks. It discusses the two main types of weathering (mechanical and chemical) and describes various processes involved like frost action, pressure release, and oxidation. It also explains factors that influence the rate of weathering like climate, rock type, and topography. The document then covers erosion, transport of sediments by water, wind, and ice, and deposition in environments like rivers, lakes, and oceans. Finally, it introduces the process of lithification where sediments harden to form sedimentary rocks.
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Weathering breaks rocks down into smaller pieces over time through mechanical, chemical, and biological processes. Mechanical weathering is caused by temperature changes that make rocks expand and contract, cracking them. Water freezing in these cracks also breaks rocks apart. Chemical weathering occurs as rainwater reacts with minerals in rocks. Biological weathering results from plant roots and small creatures breaking up rocks to make space in cracks. All of these types of weathering break rocks into smaller pieces that eventually become soil.
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Weathering refers to the breakdown of rocks into smaller pieces through mechanical, chemical, or biological processes without transportation, while erosion includes the transportation of weathered rock material by agents such as wind, water, or ice. This document describes three types of weathering - mechanical, chemical, and biological - and provides examples of specific weathering processes, including freeze-thaw action, salt crystallization, carbonation, hydration, oxidation, and hydrolysis. Images show examples of weathering patterns from these processes in various rock formations around Ireland.
12 s060902 e_the process of weathering rocks
The document discusses the two main types of weathering that break down rocks - mechanical and chemical weathering. Mechanical weathering physically breaks rocks into smaller pieces through forces like ice wedging, exfoliation, thermal expansion and contraction, and biotic forces from roots and burrowing animals. Chemical weathering alters the chemical composition of rocks through reactions with oxygen, water, carbon dioxide, and acids secreted by lichen, resulting in softer minerals that are more easily broken down over time. Both mechanical and chemical weathering form sediments from broken rock pieces.
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There are two main types of weathering: mechanical/physical weathering and chemical weathering. Mechanical/physical weathering includes exfoliation, ice wedging, organic wedging, and abrasion which break rocks into smaller pieces through forces like heat, freezing water, plant and animal activity, and rocks rubbing together. Chemical weathering involves processes like hydrolysis, oxidation, dissolution, and reactions with acids that cause rocks to decompose and break down on an atomic scale when in contact with water and acids from sources like carbon dioxide, pollution, and decaying plants.
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The document discusses the two main types of weathering - chemical and mechanical. Chemical weathering involves changing the minerals in rocks through processes like acid etching and oxidation. Mechanical weathering breaks rocks into fragments without changing their chemical makeup, through processes like frost wedging and abrasion. Weathering breaks rocks down, while erosion involves their removal and transport by agents such as water, wind, waves and glaciers. The document provides examples of different geological processes and asks the reader to identify if they involve weathering, erosion, or both.
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The document discusses the different types of weathering that affect rocks on Earth. It describes three main types of weathering: physical, chemical, and biological. Physical weathering breaks rocks through temperature changes and the growth of plant roots. Chemical weathering alters the chemical composition of rocks through reactions with water and oxygen. Biological weathering disintegrates rocks through the action of plant roots and burrowing animals. The weathering of rocks is an ongoing natural process that changes the surface of the Earth over time.
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Igneous rocks are generally termed as fire rocks formed either underground or above ground there are two types Intrusive, Extrusive igneous rocks mainly containing high silica content
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Weathering breaks down bedrock into regolith and sediment through physical and chemical processes. Joints in bedrock allow weathering to penetrate and further break apart the rock. Physical weathering, dominant in dry climates, produces larger soil particles through processes like frost action and crystalization. Chemical weathering, more common in warm, wet climates, generates smaller particles as it alters the chemical composition of rocks through hydrolysis, oxidation, and other reactions. Both physical and chemical weathering typically work together to break down bedrock and form soil.
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This document discusses various mechanisms for breakdown in solid dielectric materials. It describes intrinsic breakdown, which occurs at very high electric fields and depends on free electrons in the material. Electromechanical breakdown occurs when electrostatic forces exceed the material's mechanical strength. Breakdown can also be caused by treeing and tracking, where spark channels spread and form conductive paths. Thermal breakdown results from heat generated by dielectric losses exceeding heat dissipated from the material. Electrochemical breakdown involves chemical reactions like oxidation and hydrolysis that degrade insulating properties.
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Weathering is the breakdown of rocks into smaller pieces through either physical or chemical processes. Physical weathering breaks rocks mechanically through processes like frost wedging or plant roots, while chemical weathering uses chemical agents like water, oxygen, carbon dioxide, and acids to decompose the minerals within rocks. Erosion is the process by which weathered material is transported and deposited elsewhere by forces including water, wind, ice, and gravity through processes such as river transport, glacial erosion, and landslides.
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This document defines and describes the main types of weathering processes that occur at the Earth's surface: mechanical, chemical, and biological. Mechanical weathering involves physical breakdown through processes like frost wedging and abrasion without changing the rock's chemical composition. Chemical weathering decomposes rocks through reactions with substances like carbon dioxide, water, and oxygen. Biological weathering disintegrates rocks through organism activities like plant roots, lichen/algae growth, and burrowing. Different rock types and climates result in variable weathering rates.
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Mechanical and chemical weathering break down rocks into smaller pieces. Mechanical weathering causes physical disintegration through processes like frost wedging, plant roots, and temperature changes without altering the rock's chemical composition. Chemical weathering alters rocks through chemical reactions with water, oxygen, carbon dioxide, and acids. Water is the main agent of chemical weathering, dissolving minerals and rocks through hydrolysis and hydration. Carbon dioxide forms carbonic acid, which breaks down minerals like limestone. Oxidation also contributes to chemical weathering.
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Weathering breaks rocks and minerals down into smaller pieces through mechanical or chemical processes. Mechanical weathering breaks rocks physically without changing their composition, while chemical weathering alters their chemical makeup. Erosion transports weathered materials from their source, depositing them elsewhere through various agents like water, wind, glaciers, and gravity. These processes form soil and create layers of sedimentary rock.
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The presentation discusses the processes of weathering and erosion. It defines weathering as the breakdown of rocks through physical or chemical means without transportation, while erosion is the transportation and deposition of weathered materials by agents such as wind, water or ice. The key types of weathering are physical weathering which breaks rocks into smaller pieces without chemical change, and chemical weathering which alters the chemical composition of rocks through processes like oxidation and carbonation.
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Chemical weathering involves the breakdown of rocks through chemical processes involving water and atmospheric gases. The main types of chemical weathering are oxidation, hydration, hydrolysis, carbonation, and solution. These processes weaken rocks through reactions with water and acids. Chemical weathering is common in warm, humid climates and produces dull, pitted rock surfaces.
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The document provides an outline on the topics of weathering, sediments, and sedimentary rocks. It discusses the two main types of weathering (mechanical and chemical) and describes various processes involved like frost action, pressure release, and oxidation. It also explains factors that influence the rate of weathering like climate, rock type, and topography. The document then covers erosion, transport of sediments by water, wind, and ice, and deposition in environments like rivers, lakes, and oceans. Finally, it introduces the process of lithification where sediments harden to form sedimentary rocks.
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Weathering breaks rocks down into smaller pieces over time through mechanical, chemical, and biological processes. Mechanical weathering is caused by temperature changes that make rocks expand and contract, cracking them. Water freezing in these cracks also breaks rocks apart. Chemical weathering occurs as rainwater reacts with minerals in rocks. Biological weathering results from plant roots and small creatures breaking up rocks to make space in cracks. All of these types of weathering break rocks into smaller pieces that eventually become soil.
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The document discusses the two main types of weathering that break down rocks - mechanical and chemical weathering. Mechanical weathering physically breaks rocks into smaller pieces through forces like ice wedging, exfoliation, thermal expansion and contraction, and biotic forces from roots and burrowing animals. Chemical weathering alters the chemical composition of rocks through reactions with oxygen, water, carbon dioxide, and acids secreted by lichen, resulting in softer minerals that are more easily broken down over time. Both mechanical and chemical weathering form sediments from broken rock pieces.
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There are two main types of weathering: mechanical/physical weathering and chemical weathering. Mechanical/physical weathering includes exfoliation, ice wedging, organic wedging, and abrasion which break rocks into smaller pieces through forces like heat, freezing water, plant and animal activity, and rocks rubbing together. Chemical weathering involves processes like hydrolysis, oxidation, dissolution, and reactions with acids that cause rocks to decompose and break down on an atomic scale when in contact with water and acids from sources like carbon dioxide, pollution, and decaying plants.
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The document discusses the two main types of weathering - chemical and mechanical. Chemical weathering involves changing the minerals in rocks through processes like acid etching and oxidation. Mechanical weathering breaks rocks into fragments without changing their chemical makeup, through processes like frost wedging and abrasion. Weathering breaks rocks down, while erosion involves their removal and transport by agents such as water, wind, waves and glaciers. The document provides examples of different geological processes and asks the reader to identify if they involve weathering, erosion, or both.
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The document discusses the different types of weathering that affect rocks on Earth. It describes three main types of weathering: physical, chemical, and biological. Physical weathering breaks rocks through temperature changes and the growth of plant roots. Chemical weathering alters the chemical composition of rocks through reactions with water and oxygen. Biological weathering disintegrates rocks through the action of plant roots and burrowing animals. The weathering of rocks is an ongoing natural process that changes the surface of the Earth over time.
Igneous rocks formaion through chemical weathering
Igneous rocks are generally termed as fire rocks formed either underground or above ground there are two types Intrusive, Extrusive igneous rocks mainly containing high silica content
Weathering
Weathering breaks down bedrock into regolith and sediment through physical and chemical processes. Joints in bedrock allow weathering to penetrate and further break apart the rock. Physical weathering, dominant in dry climates, produces larger soil particles through processes like frost action and crystalization. Chemical weathering, more common in warm, wet climates, generates smaller particles as it alters the chemical composition of rocks through hydrolysis, oxidation, and other reactions. Both physical and chemical weathering typically work together to break down bedrock and form soil.
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Presentation on the different factors controlling weathering. In this we discuss the basic concepts is weathering and explain in breif the various factors controlling them.
Ppt presentation, weathering
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Igneous rocks formaion through chemical weathering
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Weathering es taskeen ruubab 28145 1 (1)
Weathering is the process by which rocks and minerals are broken down at Earth's surface. It occurs through both mechanical and chemical means. Mechanical weathering involves physical processes like exfoliation and frost wedging that break rocks into smaller pieces without changing their chemical composition. Chemical weathering alters the composition of rocks through reactions with water, carbon dioxide, oxygen and acids. Common types of chemical weathering include hydrolysis, oxidation, and solution. Biological weathering also contributes to rock breakdown as organisms secrete acids and plant roots grow into cracks. The rates of weathering vary based on rock type and climate conditions in a process known as differential weathering.
WEATHERING, EROSION, AND DEPOSITION.ppt
Weathering, erosion, and deposition continuously change the Earth's surface.
Weathering breaks down rocks through chemical and physical processes. Erosion transports weathered material from one location to another via agents like water, wind, and ice. Deposition occurs when erosion drops the materials in a new area, creating landforms through accumulation over time. These three processes work together to wear down mountains and build up river deltas, altering the landscape.
Physical and chemical weathering 11
Weathering is the physical and chemical breakdown of rocks at Earth's surface. It involves interactions between the atmosphere, lithosphere, and hydrosphere. Weathering occurs through both physical and chemical processes. Physical weathering breaks rocks into smaller pieces through forces like frost action, plant growth, and abrasion by water, wind, or glacial ice. Chemical weathering alters the composition of rocks through reactions with oxygen, water, carbon dioxide, and other agents. The rate of weathering depends on climate, mineral composition, and particle size and shape. Weathering produces sediments and soils, including residual soils formed from local bedrock and transported soils with non-local materials.
5 weathering and erosion
This document discusses a lecture on weathering and erosion given by Dr. Shahid Ullah. It covers the main topics of the lecture including definitions of weathering and the processes involved, physical and chemical agents that cause weathering, factors affecting the rate of weathering, the products of weathering, erosion and factors influencing erosion rates. The document provides detailed explanations and examples of various weathering and erosion concepts.
Unit 4 surface processes and landscapes
The document discusses different types of weathering that break down rock into sediment particles. It describes physical weathering processes like abrasion, frost wedging, and exfoliation that crack or break rocks without chemical changes. Chemical weathering involves chemical reactions that alter the rock's composition, such as carbonation, oxidation, hydration, and reactions with plant acids or acid rain. Weathering produces sediments, dissolved minerals, soil, and drives erosion. The rate of weathering depends on climate, rock type, exposure, and particle size.
Geological Weathering
Weathering is the breakdown of rocks into smaller pieces through either mechanical or chemical processes. Mechanical weathering breaks rocks physically through frost wedging, plant roots, temperature changes, and other processes without altering the chemical composition. Chemical weathering alters the rocks through chemical reactions with water, oxygen, carbon dioxide, acids, and biological organisms, dissolving and decomposing the minerals that make up the rocks. Key agents of chemical weathering include water, which dissolves minerals through dissolution and hydrolysis reactions, and carbon dioxide which forms carbonic acid that breaks down rocks like limestone.
Physical and chemical weathering
Weathering is the physical and chemical breakdown of rocks at Earth's surface. Physical weathering breaks rocks into smaller pieces through frost cracking, plant root growth, abrasion by water, ice or wind. Chemical weathering alters the composition of rocks through oxidation, hydrolysis and carbonation. The rate of weathering depends on climate, mineral composition, and surface area. Weathering produces sediments and soils through mechanical and chemical breakdown over time.
weatheringfinal11-151223061952.pdf
Mechanical and chemical weathering break down rocks into smaller pieces. Mechanical weathering causes physical disintegration through processes like frost wedging, plant roots, and temperature changes without altering the rock's chemical composition. Chemical weathering alters rocks through chemical reactions with water, oxygen, carbon dioxide, and acids. Water is the main agent of chemical weathering, dissolving minerals and rocks through hydrolysis and hydration. Carbon dioxide forms carbonic acid, which breaks down minerals like limestone. Oxidation also contributes to chemical weathering.
Weathering
Weathering breaks down rocks through various processes. There are three main types of weathering: physical, chemical, and biological. Physical weathering breaks rocks through mechanical means like freeze-thaw weathering which uses expanding water to crack rocks or exfoliation from temperature changes. Chemical weathering uses acids to dissolve rocks over time. Biological weathering occurs when plants, lichens, and their roots interact with rocks and produce acids that erode the rocks. Erosion then transports and deposits the eroded pieces of rock, shaping the landscape.
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12 s070502 b_weathering ppt
- 3. What is Weathering? • First step to forming soil and sedimentary rock – Breakdown of rock into smaller pieces – The smaller pieces do not move to a new location until erosion carries them away – Many types of weathering
- 4. What is Mechanical Weathering? • Breakdown of rock into smaller pieces without any change in the chemical composition of its minerals – Sometimes called “physical” weathering – Rock is torn apart by physical force, rather than by chemical breakdown – Smaller pieces do not move to a new location until erosion carries them away
- 5. Mechanical - Ice Wedging • Ice Wedging – Water fills joints of rocks and freezes – Water expands 10% when it freezes, pushes rock apart – Repeated freeze and thaw cycles over the years causes rock to break along joint
- 6. Mechanical - Exfoliation • Exfoliation or unloading – Rock breaks off into sheets along joints which are parallel to the surface – Caused by expansion of rock due to uplift and removal of surface material that originally buried the rock
- 7. Mechanical - Thermal • Thermal expansion – Repeated daily heating and cooling of rock – Heat causes expansion; cooling causes contraction – Different minerals expand and contract at different rates causing the rock to split
- 8. Mechanical - Biotic • Biotic – means life – Weathering caused by living organisms – Plant roots act as a wedge and widen cracks – Other causes of biotic weathering are digging animals, microscopic plants and animals, algae and fungi.
- 9. What is Chemical Weathering? • Breakdown of rock into smaller pieces because of change in the chemical composition of its minerals – Chemical reactions break down the bonds holding the rocks together, causing them to fall apart – Chemical weathering occurs in all types of rock – Rock reacts with water, gases and solutions
- 10. Chemical - Oxidation • Oxidation - oxygen combines with other elements in rocks to form new types of rock – New substances are usually much softer than original, easier for other forces to break rock apart – Causes a “rusting” of the rock, often causes a color change in the rock
- 11. Chemical - Carbonation • Carbonation – Carbon dioxide (CO2) is dissolved in water making carbonic acid – Weak acid is formed when CO2 in the air mixes with rain. This is the same acid found in soft drinks. – Acid is too weak to harm plants and animals but slowly causes feldspars and limestone to decompose