To be fair, it's not just to check the map and then send, as often the geologist has finished it search and getting ready for a new one BEFORE any deposits have shown up from previous search.
As is, you'd better wait a minute before sending out for any long search if you're not sure about the outcome from previous search.
Have you considered how "news" are technically generated?
You know, what ever happens in this game is zone oriented and then filtered by relation.
Ingame-mailed reports from geologists would make sense.
Also, there should be
a separate folder for all these system generated reports.