Nature > Perla Copernik  > Nature > Sculptures Made by Water
One day in May, 1968, an explosion opened a crack into a magical and fantastic world hidden beneath the ground in the middle of the Judean Hills. According to geologists, the Soreq cave was formed around 25 million-years ago, when the mountainous range of the Judean Hills rose up above the surface of the water. Because these layers of limestone and dolomite rock were displaced and folded with time, cracks formed which allowed water to enter and dissolve some of the rock. This water was converted into acid when seeping through the cracks and flowing through the soil, it absorbed carbon dioxide from the roots of the plants and the surrounding decay. These processes are called "Karst" and helped with the cave expansion process.
These pictures were taken in 1987, originally slides and digitized recently.
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Perla Copernik > Stalactites and Stalagmites: the next stage in the history of the cave began with the retreat of the sea and the lowering of the ground water level. The dissolution of Rock stopped and the process was reversed. When a drop of water saturated with limestone solution reached the ceiling of the cave the carbon dioxide escaped and the remaining limestone crystallized.
Perla Copernik > Stalactites form when a drop of liquid limestone is precipitated in the shape of a ring upon contact with the ceiling. Rings falls on ring and, in this way, a shape similar to a hollow macaroni is formed whose diameter is that of the drop of water.
Perla Copernik > Stalactites
Perla Copernik > Stalagmite and stalagnate in the background. When the rate of dripping is faster than the rate of diffusion of carbon dioxide, as the drops fall to the cave floor the rest of the carbon dioxide will be diffused and the limestone will crystallize into a stalagmite.
Perla Copernik > Wedding cake-shaped stalagmite. The stalactites are usually very thin and smooth but the stalagmites display a great variety of shapes. "Wedding cakes", "citadels" or "city of pagodas" are some of the most common shapes.
Perla Copernik > Wedding cake-shaped stalagmite
Perla Copernik > Some of the stalagmites and stalactites meet and fuse into one STALAGNATE. Sometimes we can detect the meeting point, but sometimes the connection is so complete that detection is impossible.
Perla Copernik > Huge Stalagnate and some stalagmites
Perla Copernik > Citadel-shaped stalagnate. Occasionally several stalagnates connect into curtains and screens which dived the cave into a number of secondary chambers.
Stalactites and Stalagmites: the next stage in the history of the cave began with the retreat of the sea and the lowering of the ground water level. The dissolution of Rock stopped and the process was reversed. When a drop of water saturated with limestone solution reached the ceiling of the cave the carbon dioxide escaped and the remaining limestone crystallized.
 > Stalactites and Stalagmites: the next stage in the history of the cave began with the retreat of the sea and the lowering of the ground water level. The dissolution of Rock stopped and the process was reversed. When a drop of water saturated with limestone solution reached the ceiling of the cave the carbon dioxide escaped and the remaining limestone crystallized.
Stalactites and Stalagmites: the next stage in the history of the cave began with the retreat of the sea and the lowering of the ground water level. The dissolution of Rock stopped and the process was reversed. When a drop of water saturated with limestone solution reached the ceiling of the cave the carbon dioxide escaped and the remaining limestone crystallized.
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Keywords: israel stalactites stalagmites perla copernik stalagnates soreq cave beth shemen valley underground water acid water judean hills
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