How do geologists use seismographic data to make maps of faults?

Question

I've looked almost everywhere and I can't find the answer I want! Please help ASAP!!!

Answer 1

Basically, seismologists use seismograph data to locate earthquakes, and the earthquakes basically outline the faults because the occur on the faults.

Answer 2

When geologists receive the waveforms from the reflective surfaces of the rocks beneath the earth, there is a definite pattern to the waveform. When the are stacked next to each other you may be able to see that one pattern is shifted up or down relative to the other that is a few hundred feet away. This is an indication of a fault. See example of this here:
http://www.seismo.unr.edu/ftp/pub/louie/class/757/intro/dixie-rec.pdf

For example, a vertical seismic line from top to bottom can look something like this:

000111000111000-110011001100-111000111000

The next line a few hundred feet away may look like this:

111000-110011001100-111000111000111001110

Notice that the pattern between the dashes in the bottom pattern was received shallower (earlier) than the one at the top and it's the same pattern (110011001100). This is an indication that this particular bed of rock has been shifted suddenly, indicating a fault line between the two locations.

Answer 3

Seismographic Data

Answer 4

to keep it simple;
geologist uses seismic data to image the sub-surface. Because we have limited outcrop exposed the only way to use geophysical methods to image not only faults but other structures such as anticlines, synclines and in general basin geometry. One of the geophysical method is seimsographic, in oil& gas exploration we induced seismic wave into the earth the produce seismic sections, which we called seismic data can either be in 2-dimension or 3-dimension.
The seismic data from field will be process, where we clean-up the background noises, stacked them and migrated the data (position correction). The final migrated data, which closely images the structues and other geological features will be use by geologist or seismic interpreter to interprate the sub-surface. However, these seismic data is in time domain, where at the end of interpretation the interpreted structure maps will be converted to depth where velocity variables will apply. It is a long process you might want to check in SEG (Society of Exploration Geophysics) to have the full explaination of seismic processing and interpretation.

Answer 5

You're cute, kid. But you really need to give up the sarcasm. It just doesn't suit you. Creationist geologists have never found any evidence that Hades is at the center of the earth simply because they have never thought to look. And they've never thought to look because they acknowledge that Hades is just a place name. The core of the earth is certainly a place, and creationist geologists have certainly found evidence that the earth does indeed have a core. If anyone, creationist or evolutionist, had wanted to nickname the core of the earth "Hades," they would have been well within their rights to do so. But no one gave the core that name because the term "core" worked well enough for scientific purposes.

Answer 6

A seismograph measures the movement between two continental plates. this along with lasers can measure very accurately any movement between 2 given points, look up tectonic plates on your PC for further information

Answer 7

Really Sorry!