2.3 Dynamics at Subduction Zones: Back Arc Spreading at Convergent Margins скачать в хорошем качестве

2.3 Dynamics at Subduction Zones: Back Arc Spreading at Convergent Margins

See our playlist of videos for Geology & Earth Science    • Geology is an Eclectic Science; Study of t...   2.3 Dynamics at Subduction Zones: Back Arc Spreading at Convergent Margins Because subduction zones form where two plates are converging, it is natural to assume that large compressional forces are at work to deform the plate margins. Indeed, this is the case along many convergent plate boundaries. However, convergent margins are not always regions dominated by compressional forces. Extension and Back Arc spreading Along some convergent plate margins, the overlying plates are under tension, which causes stretching and thinning of the crust. But how do extensional processes operate where two plates are moving together? Snow Mountain Arts http://xue-lin.com/category/natural-s... .