624 results found

Rillenkarren.- Are forms of dissolution on the surface of the rocks that consist of small channels separated by sharp crests configuring a network of tight more or less parallel gullies each other. Their dimensions range from few mm to cm wide and dm to m length.
Its Genesis is linked to the dissolution of the rock by the sheet of water that ...

The karst underworld called gallery openings and horizontal passages, with considerable dimensions, between different rooms or chambers of a cave. They are one of the testimonies of underground karst dynamics and tend to be used as preferential ducts in dynamic groundwater hydraulics. On many occasions in these passages occurs the sedimentation of ...

Caving has been and is a sport and scientific activity that has helped us to learn about the morphology and the operation of the Endokarst builders agents. In itself, is a technique that requires skills and experience and whether thrilled the means and equipment for its practice have undergone a remarkable change, evolution and development in ...

This sheet shows the Andalusite. This mineral is an a polyphenic of silicates of aluminum indicative of conditions of formation of the rock at low pressure.

In this sheet there are excellent examples of crystals of Andalusite with its crystal twinning in cross, where inside the graphite has been developed.

In this case the Andalusite is ...

Texts in preparation


(Sample 811)

Texts in preparation


(Sample 1238)

Texts in preparation

(Shows USB - 43)

Text in drawing

(Sample LZ-100)

Text in drawing

(Displays xy)

This tab shows the Brucita. This Mg hydroxide is interpreted as a
product of the transformation of the periclasa that can be generated in metamorphic rocks
carbonated.


(Sample OS-1)