Search results
- Dictionarysinkhole/ˈsɪŋkhəʊl/
noun
- 1. a cavity in the ground, especially in a limestone formation, caused by water erosion and providing a route for surface water to disappear underground.
Powered by Oxford Dictionaries
Aug 30, 2024 · Sinkholes are commonly formed when the supporting underlayer of rock is naturally dissolved by acidic rainfall or groundwater circulating through it, causing spaces and caverns to develop...
Sinkholes are common where the rock below the land surface is limestone or other carbonate rock, salt beds, or in other soluble rocks, such as gypsum, [ 11 ] that can be dissolved naturally by circulating ground water. Sinkholes also occur in sandstone and quartzite terrains.
A sinkhole is a depression in the ground with no external drainage, often formed by dissolution of soluble rocks. Learn more about sinkhole types, examples, and how to prevent them from USGS.
Feb 8, 2017 · Sinkholes appear in peculiar places, and almost every time they do we stare in disbelief, wondering "how on Earth did that happen"? Well, here's why.
A sinkhole is a depression or hole that forms when underground rocks or minerals are eroded by water or human activities. Learn about the different types of sinkholes, where they occur, how they affect the environment and human life, and some famous sinkhole attractions.
A sinkhole is a hollow place or depression in which drainage collects, or a hollow in a limestone region that communicates with a cavern or passage. Learn more about the word history, synonyms, examples, and related entries of sinkhole.
Jul 3, 2024 · A sinkhole is a hole in the ground that forms when water dissolves surface rock. Often, this surface rock is limestone, which is easily eroded, or worn away, by the movement of water. In a landscape where limestone sits underneath the soil, water from rainfall collects in cracks in the stone. These cracks are called joints.
