Spectrum

geosoftdehispa

How calculate depth with the radially averaged power spectrum?

QuentinMarcANABAFOTZ

1. identify the regional signal (steeper slope) from the residual one on the power spectrum graph (gentle). 2. calculate the slope of each 3. Apply the formula h=- slope/4pi. h being the depth you are looking for

geosoftdehispa

Thank you but I mean with Oasis Montaj.

QuentinMarcANABAFOTZ

Clic on Magmap/spectrum calculation and display, then follow the steps.
Depending on which Geosoft version you are using

geosoftdehispa

Ok, but what's mean K_unit in the depth estimate?

DarrenAndrews

@geosoftdehispa "K_unit" means Kilo unit, which is your ground unit times 1000 (e.g. 1 kilometre = 1000 metres)