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www.usgs.gov/special-topic/water-science-school/science/sinkholes

More than 110 sinkholes formed in the Dover area of Florida during a freeze event in January 2010. Ground water levels dropped to record-setting lows as farmers pumped water to irrigate their plants for protection from the cold temperatures. The sinkholes destroyed homes, roads and sections of cultivated areas.

en.wikipedia.org/wiki/Sinkhole

A sinkhole, also known as a cenote, sink, sink-hole, swallet, swallow hole, or doline (the different terms for sinkholes are often used interchangeably), is a depression or hole in the ground caused by some form of collapse of the surface layer.Most are caused by karst processes – the chemical dissolution of carbonate rocks or suffosion processes. ...

whyfiles.org/2013/sinkholes-when-the-ground-collapses

Classically, sinkholes occur in locations where water, unable to flow laterally, percolates through soluble rock, creating caverns and cavities. Often, the surface will gradually subside, causing a cover-subsidence sinkhole. And as we’ll see, other forms of collapse are popularly called sinkholes as well.

adventuresingeology.com/2013/03/04/sinkholes-where-and-why-they-form

In the wake of the sinkhole that developed beneath a Florida man's bedroom, tragically killing the man as he was "sucked" into the earth, many people are searching for information. While I am unable to tell you all the details of this event, I can give you some information about sinkholes: where and why they…

www.weatherwizkids.com/?page_id=1331

How many types of sinkholes are there? The three major types of sinkholes know to us are : Solution, Cover Collapse and Cover Subsidence. Solution sinkholes are most commonly seen in areas that have a very thin cover of soil on the surface, exposing the bedrock below to continual erosion by water.As the water percolates through the bedrock, it carries away small parts of the rock with it.

www.agiusa.com/7-common-signs-of-sinkholes-how-to-test-for-them

In this article, we’ll discuss how to identify a sinkhole (including sinkhole detection and the most common signs of sinkholes), sinkhole inspection, and what to do once you’ve discovered a sinkhole. Sinkhole Detection: The 7 Most Common Signs Of Sinkholes. Not all sinkholes provide surface expressions before opening up—but many do.

www.wikihow.com/Fix-Sinkholes

How to Fix Sinkholes. Sinkholes develop when soft rock underground—e.g., limestone, gypsum, or other carbonate rock—wears away over time. This is known as "karst" terrain. Eventually, the unsupported sediment above the underground hole col...

www.conserve-energy-future.com/causes-effects-and-types-of-sinkholes.php

Water from broken pipe can penetrate through mud and rocks and erode the ground underneath and cause sinkholes. Sometimes, heavy weight on soft soil can result in collapse of ground, resulting in a sinkhole. Sinkholes can also form when the land surface is changed.

www.earthtech.com/residential/sinkhole-truth/sinkhole-warning-signs

What are the signs that you have a sinkhole in your home? Earth Tech explains what to look for and what to do. What are the signs that you have a sinkhole in your home? Earth Tech explains what to look for and what to do. Earth Tech www.floridasinkhole.com. Florida's Most Experienced Residential Sinkhole Repair Company

futurism.com/5-of-the-most-amazingly-beautiful-and-absolutely-terrifying-sinkholes

Diagram of a sinkhole (click for larger image) (via fl.us) Sinkholes: These terrifying monsters are massive holes that open up in the Earth without warning. They can be as small as a car, or they ...