Script to create individual zip files for each .txt file it finds and move them after

I need a shell script that basically does this: Searches in a folder for all the txt files, and for each one it finds, creates a individual zip file with the same of the txt file it found + .zip. After that moves the created zip file to the txt file. Basically its a script to substitute a list of txt files for its zip equivalent but keeping the same name. I've have used find to find the files that