Dye Tracing - Flurometry

The following video takes you through the various applications of field dye tracing. Field dye tracing can be used to ascertain drainage networks.
Check out the website : Fieldwork For Geography & Environmental Science Students:
sarahnolan15.wi...

[@ebrahimsangsefidi2807]

Hi,
Thank you for the video.
I have some doubts using fluorescein or rhodamine WT for dye tracing. Could you please let me know which one has a visible trace on the stone?
Many thanks,
Ebrahim