| ID | #1677325948 |
| Added | Sat, 25/02/2023 |
| Author | July N. |
| Sources | |
| Phenomena | |
| Status | Hypothesis
|
Initial data
UK: Experts are at a loss: a giant funnel 9 meters wide and 3 meters deep opened a few meters from a busy highway
Experts are puzzled by a giant funnel wide in South Wales, some fear it could be the result of old mining operations or even a UFO landing.
Aerial photographs of the funnel show that the giant crater is filled with murky stagnant water surrounded by dry weeds. The funnel was noticed by pedestrians from the path leading to the residential complex..
Council representatives in Caerphilly, South Wales, have been called in to check.
Locals believe the land opened up because of old mining workings, but officials say the cause is still being investigated.
Hypotheses
Karst, Karst holes, sinkholes
Dissolution (leaching) of certain rocks causes a number of phenomena which are called karst or, in a word, karst. They occur where the common soluble rocks: rock salt, gypsum, chalk, limestone, dolomite. Surface water and groundwater leached into them large and small cavities, often having bizarre shapes, forming caves, sinkholes, caves. When collapsing the roof above karst voids or leached rocks that lies from the surface, there are distinctive landforms - karst.
Investigation
Resume
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