Interpreting a seismic profile - Southern Adriatic

Part of the Shear Zone channel. This is a worked example of seismic interpretation and illustration of stratigraphic evolution for a profile from offshore Italy - with a demonstration of strat relationships by sketching a (scruffy) chronostratigraphic chart. The seismic image is from Paolo Pace from the Virtual Seismic Atlas.

[@teamsonnyliston]

Thank you very much for these kind of videos. You are inspiring us not give up and learn further, regardless the university taught short limited knowledge

[@samcrosswords8979]

Well done thank you very much 👏👏👏

[@felisbertofelixluciasse4997]

very good professor

[@micbetancur9131]

My university prof was not able to explain how to read a seismograph, neither could the TAS. I'm about to get interviewed for a job as a geophysics data processor, so thank you so very much!

[@robbutler2095]

Good luck with the interview!

[@micbetancur9131]

Got the job!!

[@paulagbai3180]

congratulations!@@micbetancur9131

[@SudipRay1983]

Great video Professor. Lots of thanks.

[@robbutler2095]

thanks - glad you found it useful !

[@user-gh5yg3qw9b]

Thank you so much, and i just wanted to ask about the upper prograding layer , when we interpret it we say that a regression happened and the deep sea is supposed to be in the east direction? Am i correct? And the brown reflector on lap is a transgression from west ?

[@robbutler2095]

Thanks for the question. The uppermost package of inclined reflectors represents progradation (of actually shallow-marine strata) into bathymetry. No need for a regression. But for sure the deeper bathymtrey was to the R of image (ENE). As for the deeper onlap, no need to infer transgression - if this is all under deep-water. We can do all this with sediment supply variations... within a submarine world....

[@user-gh5yg3qw9b]

@@robbutler2095 thank you so much for the clarification!🌷

[@MohammadAli-sg8bj]

So we originally have data in the form of black and white, how does the data gets in colored form? Does the software process it?

[@robbutler2095]

The "colour" in seismic displays relates to the amplitude of the wiggle traces. In simple "monochrome" version, one polarity is coloured in black, the other white. But the magnitude of the amplitude can be coloured/scaled too, giving greater "resolution" to the intensities of amplitude from reflector to reflector... Most interpretation packages (eg Petrel, Kingdom etc) allow interpreters to set these...

[@MohammadAli-sg8bj]

@@robbutler2095 thank you for the detailed reply, I am a geologist and studied basic geophysics several years ago.