Landforms Chapter 12.6 and 12.7

How did Carlsbad caverns in New Mexico form?

A large reef in a warm sea formed a limestone deposit, which later dissolved as acids leaked into it from underlying petroleum deposits.

Select the scenario that most likely explains how the cave here was formed

A less resistant rock weathered and eroded more quickly from the cave and a more resistant rock remains to form the roof.

Select the geologic features that can be formed when groundwater interacts with limestone

Caves, sinkholes, flowstone

Select the areas in the United States where Karst topography is common.

Florida, Along belts of folded rocks in and near the Appalachian mountains

What is the global distribution of karst topography

Karst is very widespead globally and occurs on populated continents

Rainwater is slightly acidic because of the dissolved ________and sulfur dioxide.

carbon dioxide

Caves, travertine, and karst topography are formed when groundwater interacts with __________.

limestone

What sedimentary rock is composed primarily of calcium carbonate?

limestone

Collapse of the roof of a cave can produce a _________.

sinkhole

Which of the following are surface features that may indicate caves at depth

sinkholes, disappearing streams, presence of limestone.

A ________hangs from the ceiling of a cave and a ____ grows upward from the floor.

stalactite stalagmite

Caves and caverns can be formed by the dissolution of limestone by flowing _____

water

Flowstone or draperies are formed in caves when travertine precipitates out of _______ that is flowing down cave walls or along the cave floors.

water

Which of the following are characteristics of Karst topography?

Limestone pillars disappearing streams sinkholes caves

How are evaporite rocks associated with karst topography?

They are soluble in water and so can dissolve to form karst topography.

When groundwater is carrying dissolved limestone and that groundwater flows onto the surface, _______is formed.

Travertine