Paper #2: Seismoturbidite Record as Preserved at Core Sites at the Cascadia and Sumatra-Andaman Subduction Zones

This paper is part of the submarine paleoseismology special edition, submitted to NHESS in late 2011.

Here is the official web page where the document is freely available to everyone (open source).

Here is the final proof. (13 MB) (2013/01/30)

Here is the final proof Supplemental. (13 MB) (2013/01/30)

Here is the final version. submitted to the grad school (30 MB) (2014/02/01)

Seismoturbidite record as preserved at core sites at the Cascadia and Sumatra–Andaman subduction zones
J. R. Patton1, C. Goldfinger1, A. E. Morey1, C. Romsos1, B. Black1, Y. Djadjadihardja2, and Udrekh2
1College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, USA
2Bandan Penghajian Dan Penerapan Teknologi BPPT 2nd Building, 19th Floor, Jl.MH. Thamrin 8, Jakarta, 10340, Indonesia
Abstract. Turbidite deposition along slope and trench settings is evaluated for the Cascadia and Sumatra–Andaman subduction zones. Source proximity, basin effects, turbidity current flow path, temporal and spatial earthquake rupture, hydrodynamics, and topography all likely play roles in the deposition of the turbidites as evidenced by the vertical structure of the final deposits. Channel systems tend to promote low-frequency components of the content of the current over longer distances, while more proximal slope basins and base-of-slope apron fan settings result in a turbidite structure that is likely influenced by local physiography and other factors. Cascadia’s margin is dominated by glacial cycle constructed pathways which promote turbidity current flows for large distances. Sumatra margin pathways do not inherit these antecedent sedimentary systems, so turbidity currents are more localized.
Citation: Patton, J. R., Goldfinger, C., Morey, A. E., Romsos, C., Black, B., Djadjadihardja, Y., and Udrekh: Seismoturbidite record as preserved at core sites at the Cascadia and Sumatra–Andaman subduction zones, Nat. Hazards Earth Syst. Sci., 13, 833-867, doi:10.5194/nhess-13-833-2013, 2013.

Here are the Supplementary files:

Here is the Supplemental Compilation. . (50 MB)

Here is the Supplemental #1. Core geophysics and age control methods for RR0705 cores.(50 kb)

Here is the Supplemental Figure 2. Cascadia trench cores 01JC, 30PC, and 31PC. . (5 MB)

Here is the Figure 3. Core map for Sumatra cruise RR0705. (50 MB)

Here is the Figure 4. Lithostratigraphic and sedimentologic context of core RR0705-96PC. 6 MB)

Here are the individual figures:

Here is the Figure 1. Schematic illustration of geomorphic elements.

Here is the Figure 2. Sumatra plate setting map.

Here is the Figure 3. Cascadia margin core location map.

Here is the Figure 4. Correlation of sedimentary units.

Here is the Figure 5a. Sumatra slope basin cores 104PC and 103PC (core data).

Here is the Figure 5b. Sumatra slope basin cores 104PC and 103PC (maps and seismic data).

Here is the Figure 6a. Sumatra slope basin core 96PC/TC (core data).

Here is the Figure 6b. Sumatra slope basin core 96PC/TC (maps and seismic data).

Here is the Figure 7a. Cascadia slope basin cores 01KC, 56PC/TC, and 02PC/TC (core data).

Here is the Figure 7b. Cascadia slope basin cores 01KC, 56PC/TC, and 02PC/TC (maps and seismic data).

Here is the Figure 8a. Sumatra trench cores 03PC, 05PC, 107TC and 105PC/TC (core data and maps).

Here is the Figure 8b. Sumatra trench cores 03PC, PC, 107TC and 105PC/TC (seismic data).

Here is the Figure 9a. Cascadia trench cores 12PC and 23PC/TC (core data).

Here is the Figure 9b. Cascadia trench cores 12PC and 23PC/TC (maps and CT data).

Here is the Figure 10a. Sumatra trench cores 38GC, 7GC, 41GC, and 40GC (core data and map).

Here is the Figure 10b. Sumatra trench cores 38GC, 37GC, 41GC, and 40GC (seismic data).