PENENTUAN PATAHAN DAN TOPOGRAFI MOHO PADA DATA NOAA-FA BERBASIS FFT
Abstract: Regional Gravity
NOAA-FA data analysis using several gradient methods has been conducted to
determine the fracture and direction fault based on FFT. Fault can be
qualitatively identified from a regional anomaly data, gradient Theta and Normalized Standard Deviation (NSD) is
trending north-south. Dominant
fracture orientation parallel
to the fault
is only detectable by gradient
Theta and NSD, but more obviously displayed on the gradient NSD.
Furthermore, regional anomaly of Gravity
data inverted to generate Moho
topography. This inversion
using FFT based
algorithm (Parker, 1972).
The inversion result
of Moho depths between 30-39 km. In
the Moho topography, there is
contrast depth difference, namely the Latitude -35 to -25
and Longitude -70 to -65, which is suspected as a fracture.
Penulis: Sungkono, Bagus Jaya
Santosa
Kode Jurnal: jpfisikadd100034
