Results 81 to 90 of about 521,250 (248)

Collapse sinkholes in the carbonate massifs of Central and Southern Apennines

open access: yesActa Carsologica, 2012
This study focuses on karst collapse sinkholes of the southern and central Apennines region (Italy), and has the aim of outlining and discussing the factors whichcontribute to the occurrence of collapse phenomena.
Antonio Santo   +4 more
doaj   +1 more source

Gypsum dissolution geohazards at Ripon, North Yorkshire, UK [PDF]

open access: yes, 2007
This guide is for a one-day field excursion to examine gypsum dissolution geohazards at Ripon in North Yorkshire. Gypsum is a highly soluble rock and under suitable groundwater flow conditions it can dissolve forming caves and karstic features including ...
Cooper, Anthony
core  

In-Situ and Numerical Investigation of Groundwater Inrush Hazard from Grouted Karst Collapse Pillar in Longwall Mining

open access: yesWater, 2018
Groundwater inrush is a typical hydrologic natural hazard in mining engineering. Since 2000 to 2012, there have been 1110 types of mine groundwater inrush hazards with 4444 miners died or missing.
D. Ma, Xin Cai, Qiang Li, Hongyu Duan
semanticscholar   +1 more source

Evaporite sinkholes of the Friuli Venezia Giulia region (NE Italy) [PDF]

open access: yes, 1991
Sinkholes are common in the Friuli Venezia Giulia (FVG) Region (NE Italy), where the presence of karstifiable rocks favours their occurrence accelerated by intense rainfalls.
Chiara Calligaris   +10 more
core   +3 more sources

Preliminary validation of an indirect method for discharge evaluation of Pertuso Spring (Central Italy) [PDF]

open access: yes, 2016
This paper deals with the results of the first year of the Environmental Monitoring Plan, related to the catchment project of Pertuso Spring, which is going to be exploited to supply an important water network in the South part of Roma district.
De Filippi, F. M.   +2 more
core  

Hydrochemistry and stable isotopes (δ 18 O and δ 2 H) tools applied to the study of karst aquifers in Southern Mediterranean basin (Teboursouk area, NW Tunisia) [PDF]

open access: yes, 2018
Karst aquifers receive increasing attention in Mediterranean countries as they provide large supplies water used for drinkable and irrigation purposes as well as for electricity production.
Ayadi, Yosra   +8 more
core   +1 more source

The creation of collapse dolines: A 3D modeling approach

open access: yesActa Carsologica, 2014
We present a 3D numerical karst evolution model describing mechanisms governing the evolution of collapse dolines. The results confirm the current state of the art of the knowledge about the conditions necessary for a collapse doline to grow.
Thomas Hiller   +3 more
doaj   +1 more source

A remote sensing evaluation of potential for sinkhole occurrence [PDF]

open access: yes
The relationship between lowering of the water table and sinkhole development in Pierson and in Hillsborough County, Florida was investigated. The locations of recently developed (1973) collapses were examined with respect to lineaments or fracture ...
Casper, J., Degner, J., Ruth, B.
core   +1 more source

Vegetation cycles in a disturbed sequence around the Cobb-Mountain subchron in Catalonia [PDF]

open access: yes, 2008
A 52 m-long lacustrine sequence has been recovered from the basin of Bòbila-Ordis, near Banyoles (N-E Spain). The presence of Early Biharian rodent teeth (Early Pleistocene) and of a c.
Leroy, SAG
core  

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