A field survey compared slope profiles in two valleys: a limestone valley where maximum slope angles ranged from 17 to 32 degrees with no concave sections recorded, and a clay valley where maximum slope angles ranged from only 2 to 9 degrees with 68% to 80% of each profile concave. What best explains why the limestone slopes are so much steeper than the clay slopes?

Limestone is a resistant, well-jointed rock that can maintain steep gradients, while clay is weak and easily eroded, producing gentle, concave profiles.

Granite is an impermeable, crystalline igneous rock, while limestone is a permeable sedimentary rock composed largely of calcium carbonate. Why is limestone especially susceptible to chemical weathering?

Calcium carbonate in limestone dissolves readily in slightly acidic rainwater through carbonation

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A Level Geography

Slope Processes and Weathering Questions and Answers

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Question 1 of 6slope morphology data analysis

A geographer carries out a field survey to compare slope profiles in two valleys, measuring the angle of each slope segment at several points down each valley. What instrument, used together with a tape measure or ranging poles, is used to measure the angle of each slope segment?

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Paper 1slope morphology data analysis
A geographer carries out a field survey to compare slope profiles in two valleys, measuring the angle of each slope segment at several…
Paper 1slope morphology data analysis
A field survey compared slope profiles in two valleys: a limestone valley where maximum slope angles ranged from 17 to 32 degrees with no…
Paper 1weathering
Which weathering process involves organic acids produced by plant roots and decomposing organic matter bonding with and removing metal ions…
Paper 1weathering
Which weathering process is a chemical reaction in which hydrogen ions in water replace metal cations in a mineral such as feldspar,…
Paper 1rock weathering / karst
Granite is an impermeable, crystalline igneous rock, while limestone is a permeable sedimentary rock composed largely of calcium carbonate.…
Paper 1rock weathering / karst
In limestone regions, what term describes the exposed, flat limestone surface dissected by widened joints (grikes) into flat blocks…

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Slope Processes and Weathering Questions and Answers

Test yourself on this topic

A geographer carries out a field survey to compare slope profiles in two valleys, measuring the angle of each slope segment at several points down each valley. What instrument, used together with a tape measure or ranging poles, is used to measure the angle of each slope segment?

Which weathering process involves organic acids produced by plant roots and decomposing organic matter bonding with and removing metal ions from a mineral's structure?

Which weathering process is a chemical reaction in which hydrogen ions in water replace metal cations in a mineral such as feldspar, breaking it down into clay minerals and releasing soluble ions?

Granite is an impermeable, crystalline igneous rock, while limestone is a permeable sedimentary rock composed largely of calcium carbonate. Why is limestone especially susceptible to chemical weathering?

In limestone regions, what term describes the exposed, flat limestone surface dissected by widened joints (grikes) into flat blocks (clints)?

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