In the Himalayan-Tibetan plateau, both normal and thrust faults are observed. Geological age dating suggests thrust faults are older (before 18-20 Ma) than the normal faults (after 18-20 Ma). Explain this observation.
Why is this the case? I'm unable to explain this using whatever I have learned so far. I am a beginner in the field of Earth Sciences, and I would appreciate a detailed answer (or any helpful pointers) so I can better understand these concepts!
Thank you!
P.S. I'm also new to this website, so pardon me if my question isn't in line with any of the guidelines. Let me know how I can improve it.