Interpreting a seismic reflection profile - Inner Moray Firth

[@jordanjafar]

Very good explanation. Thank you!

[@olaal-najjar7391]

This was really helpful. Thank you

[@haroonshaikh9771]

7:18 Is it possible to identify more than one reactivation phases of a fault from a seismic profile?

[@robbutler2095]

Yes - if the growth strata are resolvable...

[@tomonslow4267]

how could you check for 'Normal polarity' for sea-bed relectors for eurropean polarity conventions ? Thank you :)

[@robbutler2095]

Hi Tom - thanks for the question. There are competing ways of displaying polarity, generally referred to as "American" and "European" ... in practice, opposite to each other. But actually a greater issue is the choice of colour bar issued to display the image... so rules like "blue = hard kick" is not reliable, regardless of the origin of the image. So a good check with marine data is to look at the seabed - which should of course reflect a positive impedance contrast (as sediment/rock have higher velocities than seawater). For onshore data this is much tougher... For more (technical) info - check out SEGwiki.... as a good starting point....

[@SudipRay1983]

Awesome explanation.

[@robbutler2095]

thanks - glad you found it useful!