Help me understand the referral columns in Snowplow enriched events

Hi Team,

I am trying to understand all the referral columns present in SnowPlow extracted files. Please refer below scenario for details :
A user - “user1” opens any social site and views my retail site advertisement, user clicks to the advertisement and lands to my sites login page((snowplow enabled)) and then go to different pages within the site(Each page is snowplow enabled ie. tracker is there on each page). What will be behaviour of referral columns present in the Snowplow system. Will be it like below ?

Or some other behaviour is expected from the referral columns here?
Also please mention what details will be present in other given columns present above.

Let me know if some other information is required to understand the scenario.