Gravity field separation
Upcoming SlideShare
Loading in...5
×
 

Like this? Share it with your network

Share

Gravity field separation

on

  • 812 views

gravity field separation lecture, undergraduate geophysics course.

gravity field separation lecture, undergraduate geophysics course.

Statistics

Views

Total Views
812
Views on SlideShare
812
Embed Views
0

Actions

Likes
1
Downloads
9
Comments
0

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

Gravity field separation Presentation Transcript

  • 1. Gravity Field Separation Gravity Field= Regional + Residual Regional Field comes from deep seated structures like Moho Residual field comes from shallow (near surface) structures
  • 2. Example Observed gravity (Bouguer) map
  • 3. Using graphical separation method
  • 4. Regional field
  • 5. Residual field
  • 6.  Regional fields are generally smoother than residual>  Residual anomalies are usually higher in amplitude
  • 7. Separation Methods  Graphical method: Depends on removing the trend ( regional) from Bouguer anomalies.  Griffin Method Applying averaging scheme to gravity maps through averaging the gravity values around a point then subtracting from the gravity value at the point to get the residuals.
  • 8. Another example