Ib qho accretionary wedge los yog accretionary prism forms los ntawm cov sediments accreted mus rau lub non-subducting tectonic phaj ntawm ib tug convergent phaj ciam.
Yuav ua li cas cov kab txaij ua quizlet nyob qhov twg?
Ib daim ntawv accretionary ntawm an active continental margin thaum lub subducting dej hiav txwv slab scrapes pieces ntawm nws tus kheej mus rau buoyant continental slab.
nrhiav pom qhov twg?
Sediments, txheej txheej saum toj kawg nkaus ntawm cov khoom siv ntawm lub phaj tectonic, uas sib sau thiab deform qhov chaw dej hiav txwv thiab cov phiaj xwm av sib tsoo. Cov sediments no tau muab pov tseg rau saum toj ntawm cov nqes dej hiav txwv crustal thiab tau ntxiv rau ntawm ntug ntawm daim av sab av loj.
Yuav ua li cas yog ib qho kev sib tw accretionary wedge?
Nkauj kho siab. ib tug loj wedge zoo li tus loj ntawm sediment uas accumulates nyob rau hauv subduction zones. Ntawm no sediment yog scraped los ntawm subducting oceanic phaj thiab accreted mus rau lub overriding crustal block.
Yuav ua li cas thiaj ua tau ib qho kev sib sib zog nqus dej hiav txwv trench?
Accretionary wedges form nyob rau hauv qab ntawm dej hiav txwv trench tsim nyob rau hauv ib co convergent phaj ciam teb. Cov pob zeb ntawm cov pob zeb sib xyaw ua ke yog deformed thiab fragmented lawv hu ua melange-Fabkis rau "sib xyaw."
