What is a seismic quarry?

The geological profiling method known as seismic quarry measures the time when seismic waves or rays move on the ground, hit the subsoil and will be bounce back to the surface. This method, which is used in geophysics, is most accurate at depths of less than 100 feet mapping. In addition to measuring the subsoil depth, seismic quarry can provide information on the quality and strength of rocks. These waves can be created naturally, as in the case of earthquakes or artificial methods such as explosions. Small seismic waves can be created by firing a shot to the ground or running something heavy to the ground. If the earth shakes or vibrates, it is caused by a seismic wave. The waves move the ground and then the slap are laterally along the subsoil before bouncing back to the surface. A series of geophones arranged in a straight line along the tested area will record waves as they reaches the surface.

geophones are small metal rollers that have ZhrUba battery -shaped, even if they come in different sizes. Uvnitř válce je cívka, která visí z pramene. There are magnets on both sides of the coil. When the seismic waves cause the vibration of the Earth, the coil moves through the magnetic field and the energy of the wool can be measured. Computers are often used to analyze data received from geophones and for speed calculations are created graphs rendering times travel versus distance.

speeds provide information about the type of material below the surface of the Earth, as the wool will move different types of Earth at different speeds. For example, the seismic wave will move at clay at a different speed than it would move with sand. That is why geophysics can collect information about the materials between the surface and the subsoil.

seismic quarry should not be confused with seismic reflection. Although seismic reflection uses many of the same test methods, it collects images of the subsoil in the waves simply discouraging or reflected, more outside the subsoil than dispersion in different breathsch. Unlike seismic quarry, seismic reflection cannot provide information about the thickness of the material or the rate of the beams. It is best used in the marine environment where the seismic refraction is unreliable.