| A dynamic model takes into consideration rapid chemical reactions, eg chemical weathering, nutrient uptake and nitrification. |
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| Little-weathered grains of hypersthene and rare clasts of limestone persist throughout the profile, as evidence for limited chemical weathering. |
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| The clay minerals and copious fines reported suggest that blockfields were produced by chemical weathering in a Mediterranean-type climate. |
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| The Maillard reaction is developed in part related to chemical weathering reactions of food. |
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| During chemical weathering, biotite tends to lose its elasticity and become decolorized to silvery gray flakes. |
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| A gibber is generally considered a result of mechanical weathering because silica is almost inert to chemical weathering. |
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| Low rainfall, occurring when temperatures are lowest, retards chemical weathering. |
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| It alters rather easily during chemical weathering and thus is rare in sediments and sedimentary rocks. |
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| World regions were identified based on underlying rocks and the operative physical and chemical weathering processes. |
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| Even the chemical weathering of rock constitutes an important sink for carbon dioxide. |
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| The natural processes by which they form range from chemical weathering to stream, marine, and wind action. |
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| In the first stage of chemical weathering, solutions made with water are created. |
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| Climate, biological activity, parent materials, topography and time influence chemical weathering. |
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| The acidic action of some organisms such as lichens that live on rocks can cause chemical weathering. |
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| In arid and semi-arid lands, the scarcity of water generally slows the effects of chemical weathering. |
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| In chemical weathering, chemical reactions that create new substances occur within rocks. |
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| This suggests that the groundwater seems mostly to be controlled by chemical weathering of rock forming minerals. |
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| The samples falling in rock weathering zone may be due to the chemical weathering with the dissolution with rock forming minerals. |
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| Roundness is increased by abrasion and chemical weathering processes, which blunt particle edges, and decreased by fracturing, which creates new, unworn edges. |
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| Over thousands to millions of years, the physical breakdown and chemical weathering of volcanic rocks have formed some of the most fertile soils on Earth. |
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| Generally, chemical weathering differs from other forms of weathering by its ability to separate different elements in the surficial environment because of the differing reactivities of these elements. |
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| However, the chemical weathering reactions are not completely arrested. |
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| According to Gibbs's diagram plots, chemical weathering of rock forming minerals is the major driving force controlling water chemistry in this area. |
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| In some places, the fractures in limestone are accentuated by chemical weathering to form karst features, where groundwater flow occurs in larger channels and caverns. |
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| Once deposited, physical and chemical weathering can alter the state of preservation. |
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| Existing joints are subsequently exploited by the action of chemical weathering carbonation to form deep grykes and rounded blocks called clints. |
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| Water that contains a high amount of dissolved material through the action of chemical weathering can have a bitter taste, and is commonly referred to as hard water. |
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| The mechanical weathering of olivine-rich rocks leads to the release of olivine particles that, in the absence of much chemical weathering, may accumulate to produce green or greenish black sands. |
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| Fractures and features due to both mechanical and chemical weathering are being mapped on rectified photographs and assembled into photomosaics for each area. |
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| Chemical weathering of granite occurs when dilute carbonic acid, and other acids present in rain and soil waters, alter feldspar in a process called hydrolysis. |
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