nepal is on the orogenic belt plate boundary.
nepal is on the orogenic belt plate boundary.
what kind of plate boundary is nepal on?
orogenic belt
in addition, at some distances further away from the north qinling belt, a continental arc with volcanoes was formed at another subducting plate boundary as well, which is named the proto-erlangping arc. an arc can be formed because the subducted lower plate melted in the mantle and rose up to the opposite upper plate while cutting through lines of weakness of plate. as a result, magma eventually reached the top of the plate, then cooled down and solidified into rocks, forming an arc. in the meantime, proto-erlangping ocean was created at divergent plate boundary where plates separate, so that the proto-erlangping arc was moving away from north qinling belt.
qinling orogenic belt
where plate boundaries occur within the continental lithosphere, deformation is spread out over a much larger area than the plate boundary itself. in the case of the san andreas fault continental transform, many earthquakes occur away from the plate boundary and are related to strains developed within the broader zone of deformation caused by major irregularities in the fault trace (e.g., the "big bend" region). the northridge earthquake was associated with movement on a blind thrust within such a zone. another example is the strongly oblique convergent plate boundary between the arabian and eurasian plates where it runs through the northwestern part of the zagros mountains. the deformation associated with this plate boundary is partitioned into nearly pure thrust sense movements perpendicular to the boundary over a wide zone to the southwest and nearly pure strike-slip motion along the main recent fault close to the actual plate boundary itself. this is demonstrated by earthquake focal mechanisms.
earthquake