1. the study of global structures. Scientists have tried to find ways to study global structure, directly and indirectly, by attempting to use the evidence can be found, including the use of scientific principles, theories, and any other modern technology in order to respond to such doubts. Currently there are human limitations, technology for education, the structure of the world, direct and, while this study from borehole survey to collect rock samples, which wells drilled the deepest exploration drilling currently only in depth 12.3 kilometers. For the study of the internal structure of the Earth indirectly obtained from seismic studies, that caused the earthquake and from human trials. Structural studies of seismic motion through the Earth. The waves used in the analysis is the primary waves (Primary waves, P waves) and secondary waves (Secondary waves, S waves), which is the wave in the medium (Body wave) seismic properties of such important. As follows: P-wave can pass through an intermediary at any State and more speed S wave. S-wave moves through a solid medium-specific only.
การแปล กรุณารอสักครู่..