I Just Uploaded My Dissertation

woot woot
I will be submitting the remaining two papers in the coming weeks. I am still “on target” until then. Below are links to the two files I uploaded to the digital scholar. The final signature page needs to make its rounds also, etc.

Dissertation

  • The final version of my dissertation is here. (~80MB pdf file)

  • The extra appendices are here. (~105MB pdf file)

IPCC 5th Assessment Report Forthcoming

Coming out later this month here http://www.climatechange2013.org/report/
i pasted some text from the group I fact sheet that demonstrates why the IPCC assessment reports are the most comprehensive and peer reviewed science ever. 9,200 references! ~55,000 comments! no single paper published anywhere at any time has been so comprehensive. single papers, which may disagree with minor aspects of the ARs, pale in comparison (but continue to be used by blog writers to attempt to discredit the AR). single authors also attempt to raise questions, but frequently they are only experts in a minor or related field (eg don easterbrook, world class glaciologist, but not a climatologist).
you have questions? WG1AR5_Questions.pdf
you want to read the fact sheet? WG1AR5_Questions.pdf
The Report
1 Scoping Meeting to outline 14 Chapters Over 1000 nominations from 63 countries
209 Lead Authors and 50 Review Editors from 39 countries Over 600 Contributing Authors from 32 countries Over 2 million gigabytes of numerical data from climate model simulations Over 9200 scientific publications cited
The First Order Draft Expert Review
Nearly 1500 individuals registered 21,400 comments from 659 Expert Reviewers from
47 countries
The Second Order Draft Expert and Government Review
Over 1500 individuals registered 31,422 comments from 800 Expert Reviewers from
46 countries and 26 Governments
The Final Government Distribution
1855 comments from 32 Governments on the Final Draft Summary for Policymakers
Total Reviews
54,677 comments 1089 Expert Reviewers from 55 countries 38 Governments

Updated Dissertation Files

I have organized my three papers. These are in a state of flux and I hope to submit them to my committee shortly.
Here is the draft of my first paper, I will be submitting this to Geosphere shortly. Here is a direct link to the pdf:
Paper #1
Here is my second paper. Here is a direct link to the pdf:
Paper #2
Here is the draft of my third paper, I will be submitting this to Geophysical Journal International shortly. Here is a direct link to the pdf:
Paper #3

Latest Paper on Cascadia Seismoturbidites is now released

Our paper has recently been published online and open source. Please find this here.
This paper is part of a Natural Hazards and Earth System Sciences special issue on submarine paleoseismology.
Spatially Limited Mud Turbidites on the Cascadia Margin: Segmented Earthquake Ruptures?
C. Goldfinger1, A. E. Morey1, B. Black1, J. Beeson1, C. H. Nelson2, and J. Patton1
1Oregon State University, College of Oceanic and Atmospheric Sciences, 104 Ocean Admin. Bldg., Corvallis, Oregon 97331, USA
2Instituto Andaluz de Ciencias de la Tierra (IACT), CSIC-Univ. de Granada, Campus de Fuentenueva s/n, 18002 Granada, Spain
Abstract. A series of 23 thin, mostly mud-silt turbidites are found interspersed between larger, well-dated and regionally correlated paleoseismic sandy turbidites that extend along most of the Cascadia margin, northwestern United States. Investigation of the structure, distribution, and sedimentology of these thin mud-silt units supports the interpretation of these units as turbidites originating on the continental slope. Interpretation of mud turbidites is inhibited by bioturbation and lower response to analytical and imaging techniques; nevertheless most of the 23 interpreted beds exhibit most of the characteristics of coarser turbidites. These characteristics include sharp bases, fining upward sequences, darker color, increased gamma and CT density and magnetic susceptibility relative to the hemipelagic background, sparse microfossils, high lithic content, and evidence of transport from marine sources on the continental slope. New core data from sites south of Rogue Apron indicate that sandy and muddy turbidites may be correlated at least 150 km south to Trinidad Plunge Pool for the period ~ 4800 yr BP to present. Many of the mud turbidites initially described at Rogue Apron coarsen southward, becoming sandy turbidites. High-resolution Chirp seismic profiles reveal that turbidite stratigraphy along the base of the southern Cascadia continental slope is continuous, with little variation for at least 240 km along strike. The Chirp data show that turbidites along the Cascadia base of slope are ubiquitous, and likely not sourced solely from submarine canyon mouths, but may also have been delivered to the proximal abyssal plain as sheet flows from the open continental slope and coalescing local sources. Regional stratigraphy reveals that hemipelagic sedimentation rates and total Holocene turbidite thickness and mass are similar at widely separated sites, yet the total thickness of the Holocene section is greater by a factor of two in southern Cascadia. This difference is primarily due to the presence of the 21 mud and two additional sandy turbidites. We conclude that the Cascadia mud turbidites are ubiquitous along southern Cascadia only, with only one likely example of a correlated turbidite limited to the northern margin. Eight onshore sites including three marsh sites and five lakes include potential seismogenic correlatives of the southern Cascadia turbidites. In all, the onshore sites may have recorded > 80% of the events attributed to plate boundary earthquakes offshore during the period 0–6000 yr ago. Slope stability calculations suggest that earthquakes of Mw = 7.0 or greater should generate ground accelerations sufficient to destabilize open slopes and canyon heads with or without excess pore fluid pressure. Estimates of Mw for segmented ruptures are in the range of 7.4–8.7, exceeding the slope stability criteria for typical slopes by at least a factor of ~ four.
Citation: Goldfinger, C., Morey, A. E., Black, B., Beeson, J., Nelson, C. H., and Patton, J.: Spatially limited mud turbidites on the Cascadia margin: segmented earthquake ruptures?, Nat. Hazards Earth Syst. Sci., 13, 2109-2146, doi:10.5194/nhess-13-2109-2013, 2013.

4/29/31 HSU Dept. Geology Student Colloquium

Here is the page for this presentation, though the links below work also.

PowerPoint:

Here is the PowerPoint from this talk about Seismoturbidite Chronostratigraphy and Slope Stability offshore Sumatera, Indonesia:

HSU Student Colloquium PowerPoint (110 MB)


These videos are in the PowerPoint and you need to download them independently:

Here is the video of coring offshore Sumatra (8 MB)

Here is the video showing a turbidity current in an aquarium (7.1 MB)

Here is the video showing tsunamigenesis from an earthquake in Sumatra (7 MB)

 


Paper Published: Seismoturbidite record as preserved at core sites at the Cascadia and Sumatra–Andaman subduction zones”

My paper has recently been published online and open source. Please find this here.
This paper is part of a Natural Hazards and Earth System Sciences special issue on submarine paleoseismology.
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.   Bibtex   EndNote   Reference Manager    XML

sumatra volcanism paper

Greetings, our volcanism paper has been published. i have placed the author’s version here .
we discuss the tephra deposits (volcanic ash) that we found in the cores i collected offshore Sumatra the summer of 2007. i worked primarily on the sed/strat context as well as the age control for the cores and the deposits within. Morgan Salisbury was chiefly the person who did the elemental analyses on the electron microprobe and later the ICPMS (inductively cooled plasma mass spectrometer), both facilities at OSU, CEOAS. you can contact Morgan’s advisor Adam Kent if you are interested in working on volcanic science at OSU.
More about my work offshore Sumatra is here. on that page, there is a slideshow and a link to a summary of some of my research.