758_Tonga5.zip (6.93 MB)

Supplemental material: Emergent and animated COLLADA models of the Tonga Trench and Samoa Archipelago: Implications for geoscience modeling, education, and research

Download (6.93 MB)
journal contribution
posted on 20.03.2012 by Declan G. De Paor, Steve C. Wild, Mladen M. Dordevic
Geosphere, April 2012, v. 8, p. 491-506, doi:10.1130/GES00758.1, Model 5 - In this scenario, the western Pacific plate first cracked along the Tonga Trench and tore at a point to the west of the Samoan Archipelago, causing the southern portion to subduct. A magmatic arc built, but there was no significant backarc spreading. At ~6 m.y. ago the tear point ripped rapidly eastward as in model 3. This rapid rollback resulted in a shallow-dipping slab segment at shallow depth with steep-dipping absolute movement vectors. The flat slab then continued to founder to its present mid-mantle level. This .zip file contains the KML file for Supplemental Model 5. To view the html file of Supplemental Models 1-6 with a Google Chrome, Firefox, or Safari web browser, please visit http://dx.doi.org/10.1130/GES00758.S5. File size is 7 MB.



Logo branding