zankaon

May 19, 2015

Himalayan formation. Any similarity to Ural mountains formation?

Filed under: Letters from Ionia — Tags: , , , — zankaon @ 4:40 pm

Why are there no volcanoes in the Himalayas? Is there any basaltic or granitic rock, indicative of volcanic activity or metamorphosis, respectively? Might just a deeper subduction plate ever be descriptive for Himalayan formation, even without volcanoes? Would lack of any suitable evidence be consistent with another model for orogeny?

Not just up thrust alone, as for N. American Rocky mountains, but perhaps also an alternative model and example. Perhaps one has an ‘accordion‘ model of folded weaker continental lithosphere crust; hence consistent with greater susceptibility to landslides. Might ancient collision of continents (~1 Byr ago?), represented by Ural mountains, also be consistent with such latter model? Hence no evidence of deeper subduction, nor of volcanoes, for Ural mountains?

Ural mountains

Advertisements

Leave a Comment »

No comments yet.

RSS feed for comments on this post. TrackBack URI

Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Create a free website or blog at WordPress.com.