Yes, you can pursue msc. in geology abroad after completing your bsc. in geology from any recognized university in India. You need atleast 60% in your graduation and also PCB in class 12th. Also for the admission you need to:

• You need to choose the college and the country where you want do your msc from.
• You need to clear IELTS or TOFEL examination
• you also need to clear GRE
• You wil require to submit your official transcripts, including your degree.
• You must prepare SOP and letter of recommendation.