Question

there is a geological site associated with earthquake activity and a mountain range. when a person looks offshore, they do not find any trenches. what type of boundary are they dealing with? oceanic - oceanic convergent boundary oceanic - continental convergent boundary continental - continental convergent boundary divergent boundary undersea

Explanation:

• Oceanic - oceanic convergent boundary: Leads to trench formation (e.g., Mariana Trench).
• Oceanic - continental convergent boundary: Also results in trench (e.g., Peru - Chile Trench).
• Continental - continental convergent boundary: No trench as both continental plates are buoyant; forms mountain ranges (e.g., Himalayas) and has earthquake activity.
• Divergent boundary undersea: Creates mid - ocean ridges, not mountain ranges and less likely to have the described earthquake - mountain range association without trench.

Answer:

continental - continental convergent boundary