L04_GravAnalysisExamples-page11

L04_GravAnalysisExamples-page11 - depth, and invert for...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Applied Geophysics – Analysis and examples Inverse modeling Methodology of interpretation Forward modeling: Make a skilled guess of the structure (the model) Calculate the anomaly this would produce Compare to the observations (the data) Adjust the model and recalculate etc… Inverse modeling essentially replaces step 4 with a mathematically determined model adjustment γ = g g Usually we fix certain parameters such as source geometry or
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: depth, and invert for remaining parameters e.g. density contrast Applied Geophysics Analysis and examples Salt dome Anomaly: Near circular g max ~ 16 mGal x 1/2 ~ 3700 m Assume spherical salt body: Depth to center ~ 4800 m Assume -250 kg/m 3 : Radius ~ 3800 m Depth to top of salt: 4800-3800 = 1000 m Examples...
View Full Document

Ask a homework question - tutors are online