Poza Tule, Sistema Zacaton

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One of the largest sinkholes in the unique Sistema Zacatón is Poza Tule. This sinkhole has a diameter of some 200 – 250 m.

Sistema Zacatón is area with incredible characteristics unparalleled in the world. In total this area contains some 20 unusual features – sinkholes, caves, springs created by deep groundwater heated by volcanic processes. Karstification processes here continue today as well – acidic groundwater continues to strip away the limestone and deposits it in unusual travertine formations.

Sinkhole with triple bottom

Rims of Poza Tule are enclosed with a belt of dense reed vegetation, the plain bottom is covered with a shallow water. This waterbody was reached after hard cutting through bush in March, 2002.

Geophysical investigations showed that below the shallow pool is located travertine layer with thickness fluctuating from less than 2 m to more than 4 m. Below this travertine lid is up to 45 m deep water-filled void. Below it there is the next travertine lid – second cap!

Such sealed voids full with thermal water may serve as ideal isolated habitats for anoxic bacteria from the previous ice age periods.

References

  1. Marcus Gary, Poza Tule, Sistema Zacatón, research homepage. Accessed on June 27, 2010

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Poza Tule, Sistema Zacaton 23.000830, -98.163627 Poza Tule, Sistema Zacaton

Coordinates: 23.0008 N 98.1636 W
Categories: Sinkholes, Ecosystems, Lakes and streams
Values: Geology, Biology, Unexplained
Rank: 7
Address: North America, Mexico, Tamaulipas, southern part of the state, 13 km north-west from Aldama town
Depth: 2 – 4 m, below one more void deeper than 45 m

Wonders of Mexico

El Castillo pyramid, Chichen Itza
El Castillo pyramid, Chichen Itza / , Flickr / CC BY 2.0

Few countries of the world can offer such array of unique and astounding attractions as Mexico.

Area of this country was cradle of several highly developed indigenous civilizations and some regions in the country are dotted with remnants of ancient cities with temples, palaces and pyramids.

Sinkholes

World's deepest sinkhole - Xiaozhai tiankeng, with tourist route visible
World’s deepest sinkhole – Xiaozhai tiankeng, with tourist route visible / Brookqi, Wikimedia Commons, public domain

Category includes outstanding sinkholes – large natural depressions or holes, which for most part represent collapsed caves.

Recommended books

Hypogene Karst Regions and Caves of the World


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Encyclopedia of Caves and Karst Science


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