limestone Flashcards
(27 cards)
What is limestone pavement?
A limestone pavement is a flat, exposed area of limestone rock, characterized by its surface features.
How is limestone pavement primarily formed?
Limestone pavement is formed through the process of chemical weathering, primarily by the action of carbonic acid.
True or False: Limestone pavements are formed in dry environments.
False
What role does water play in the formation of limestone pavements?
Water, particularly acidic rainwater, helps to dissolve the limestone, creating fissures and cracks.
Fill in the blank: The process of limestone pavement formation involves the dissolution of ______.
calcium carbonate
What are the characteristic features of limestone pavements?
They typically have clints (blocks of limestone) and grikes (fissures or cracks).
What is the main chemical reaction involved in the weathering of limestone?
The reaction of carbon dioxide with water to form carbonic acid, which then reacts with calcium carbonate.
Multiple choice: Which of the following is NOT a factor in the formation of limestone pavements? A) Acidic rainfall B) Temperature changes C) Volcanic activity
C) Volcanic activity
How long does it typically take for limestone pavements to form?
It can take thousands to millions of years for limestone pavements to develop.
What landform is commonly associated with limestone pavements?
Karst landscapes.
True or False: Limestone pavements can support diverse ecosystems.
True
What is a common use of limestone extracted from pavements?
It is often used in construction and as a raw material in the production of lime.
What type of rock is limestone classified as?
Sedimentary rock.
Fill in the blank: The presence of ______ can enhance the weathering process of limestone.
vegetation
What is a grike?
A grike is a narrow, deep fissure in a limestone pavement.
What is a clint?
A clint is a block or slab of limestone that is separated by grikes.
How does climate influence the formation of limestone pavements?
Warmer, wetter climates increase the rate of chemical weathering.
What is the main component of limestone?
Calcium carbonate.
True or False: Human activities have no impact on limestone pavement formation.
False
What geological processes contribute to the exposure of limestone pavements?
Erosion and tectonic uplift.
Multiple choice: Which of the following is a characteristic of limestone pavements? A) High porosity B) Presence of fossils C) High density
B) Presence of fossils
How does the formation of limestone pavements affect local biodiversity?
It creates unique habitats that can support specialized plant and animal species.
What type of vegetation is commonly found on limestone pavements?
Calcareous grassland species.
