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{{Wiki Write Off Entry
|image=AAPG-WIKI-Write-off.jpg
|student chapter=University of Brawijaya
|competition=June 2015
}}
==Definition==
==Definition==
Amplitude is deviation of wave from zero crossing. Maximum positive amplitude is referred to peak and Maximum negative amplitude is referred to trough. The value of amplitude is equal to the value of seismic trace at specific depth. While, Seismic trace is parameter of seismic wave that represents contrast of acoustics impedance on the boundary of bedding rock on a geophone <ref>Abdullah, A. (2007). Ensiklopedi Seismik: http://ensiklopediseismik.blogspot.com/ . </ref>. Figure 1 show part of the wave:
Amplitude is deviation of wave from zero crossing. Maximum positive amplitude is referred to peak and Maximum negative amplitude is referred to trough. The value of amplitude is equal to the value of seismic trace at specific depth. While, Seismic trace is parameter of seismic wave that represents contrast of acoustics impedance on the boundary of bedding rock on a geophone <ref>Abdullah, A. (2007). Ensiklopedi Seismik: http://ensiklopediseismik.blogspot.com/ . </ref>. Figure 1 show part of the wave: