Month: November 2014

IRIS WEBINAR – Imaging faulting and hydration in the Alaska subduction zone with the R/V Langseth – 12/3 2 PM Eastern

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Please register for Imaging faulting and hydration in the Alaska subduction zone with the R/V Langseth on Dec 3, 2014 2:00 PM EST at:

https://attendee.gotowebinar.com/register/856323108167966721

Presenter: Donna Shillington, Lamont-Doherty Earth Observatory

Subduction zones worldwide exhibit remarkable variations in seismic activity and slip behavior along strike and down dip. Active-source seismic data can provide essential constraints on the properties of the plate boundary, the distribution of fluids and hydration, and deformation in the overriding and subducting plate, all of which can be used to assess possible contributions to this variability. Here I describe results from a marine active-source seismic study of the subduction zone offshore Alaska.

MCS reflection and wide-angle seismic data were collected offshore from the Alaska Peninsula in the summer of 2011 aboard the R/V Langseth during the Alaska Langseth Experiment to Understand the megaThrust (ALEUT) program. This region encompasses the full spectrum of coupling: 1) the weakly coupled Shumagin Gap; 2) the Semidi segment, which last ruptured in the 1938 M8.2 event, appears to be locked at present, and 3) the western Kodiak asperity, which marked the western extent of the 1964 M9.2 rupture and also appears to be locked. It also exhibits substantial variations in seismicity. ALEUT data reveal changes along-strike in incoming sediment thickness and plate structure and along-strike and downdip variations in megathrust reflection characteristics.

Remarkable variations in the style and amount of bending faulting and hydration in the subducting oceanic plate are observed along strike, which appear to be controlled by the local relationship between the orientations of pre-existing structures in the incoming oceanic plate and the subduction zone. Significantly more bending faulting and hydration are observed in the Shumagin Gap, where pre-existing structures are favorably aligned, than the Semidi segment. The thickness of sediment on the incoming plate also changes along strike. Over 1 km of sediment is observed on the incoming oceanic plate in the Semidi segment prior to subduction, and a relatively thick and continuous layer interpreted as subducted sediment can be imaged at the plate boundary here up to ~50 km from the trench. In the Shumagin Gap, where the incoming sediment section is half as thick and more pervasively faulted at the outer rise, a subducting sediment layer is also observed but it is thinner, less continuous and is not observed to continue as far from the trench. These changes in bending faulting, hydration and sediment thickness correlate with variations in interplate and intermediate depth intraslab seismicity. Although the Semidi segment is capable of producing great earthquakes, the comparatively thick sediment here may contribute to the relative paucity of interplate seismicity compared with adjacent segments. More intermediate depth seismicity is observed in the Shumagin Gap, where there is more hydration and bending faulting in the subducting plate.

Downdip variations in the characteristics of the plate boundary are also observed; a simple and bright reflection is generally observed at depths of ~12-25 km, ~40-100 km from the trench, within the center of the estimated locked zone. The character changes where the megathrust appears to intersect the forearc mantle wedge to a wide (~2 km thick), bright band of reflections and may arise from a change in deformation style, distribution of fluids, and/or plate boundary properties. Although the overall patterns in reflection characteristics are consistent between profiles across different segments, this transition in reflection characteristics occurs at larger distances from the trench within the Semidi segment than in the Shumagin Gap.

After registering, you will receive a confirmation email containing information about joining the webinar.

Brought to you by GoToWebinar®

Webinars Made Easy®

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Cascadia Initiative Year 3 Horizontal Orientation Report available

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Hello all,

The Cascadia Initiative Year 3 Horizontal Orientation Report has been published on the OBSIP website and published in the IRIS DMC metadata folder. The reports can be downloaded at:

http://www.obsip.org/experiments/experiment-list/2011/cascadia

Please note that “Appendix B: Helicorders” in the report will be uploaded at a later date.

For more information about Cascadia Initiative Data Updates and Changes, please visit the OBSIP website or join the OBSIPtec mailing list.

Website: http://www.obsip.org/experiments/experiment-list/2011/cascadia/cascadia-data-updates-and-changes

Mailing List: http://www.iris.washington.edu/mailman/listinfo/obsiptec

If you have any questions, please direct them to Jessica Lodewyk (Jessica.lodewyk@iris.edu)

Thank you,

Jessica Lodewyk

AGU GeoMapApp User Lunch

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GeoMapApp is a free, map-based data discovery and analysis program that is widely-used across the geosciences for research and education. To update our users on new directions and to provide an opportunity for questions and suggestions, we invite people with experience of GeoMapApp to join us for a GeoMapApp Users’ Lunch at the Fall AGU meeting, on Thursday, 18th December.

Agenda:

– Summary of June 2014 GeoMapApp workshop and survey.

– What’s New.

– GeoMapApp menu restructuring.

– GeoMapApp forum, YouTube tutorials, help and other feedback mechanisms.

– Using GeoMapApp off-line.

– Open discussion: Your questions and feedback (e.g. potential improvements, missing functions).

Attendance:

– The lunch is designed for individuals with some experience using GeoMapApp in research or teaching.

– Graduate students, post-docs and faculty are encouraged to attend.

– Lunch will be provided for up to 20 people. Click here to apply (deadline is 4th December).

– Successful applicants will be notified on 5th December.

Event Time:

Thursday 18th December, 12:30-1:30pm, Marriott Marquis hotel (4th St and Mission, one block from the Moscone Center), Room Sierra I.

Please submit an application for the GeoMapApp Users’ Lunch by clicking here (deadline is 4th December). Successful applicants will be notified on 5th December. If you have questions about the lunch, please contact the IEDA-GeoMapApp team by sending e-mail to info@geomapapp.org

See you at AGU!

The IEDA-GeoMapApp Team

Lamont-Doherty Earth Observatory of Columbia University

GeoPRISMS Prize for Outstanding AGU Student Presentations – deadline tomorrow

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GeoPRISMS Prize for Outstanding AGU Student Poster and Oral Presentations

Application deadline: November 21, 2014

The GeoPRISMS Program is offering two $500 prizes for Outstanding Student Presentations on GeoPRISMS- or MARGINS-related science at the AGU Fall Meeting in San Francisco, December 15-19, 2014. The two prizes, one each for a poster and an oral presentation, will be awarded to highlight the important role of student research in accomplishing MARGINS- and GeoPRISMS-related science goals, and to encourage cross-disciplinary input. Any student working on science topics related to the objectives of MARGINS or GeoPRISMS is eligible to participate. Students do not have to be working on a MARGINS- or GeoPRISMS-funded project to enter the competition. Students from the international community, as well as from the U.S., are encouraged to apply. Please note that previous GeoPRISMS Student Prize winners are not eligible.

Presentations will be judged throughout the AGU meeting. Students will also have an opportunity to display their posters (or poster versions of their AGU talks) at the GeoPRISMS Student and Community Forum, beginning at 6:00 pm, Monday, December 15th at the Westin Market Street Hotel (50 Third St., between Mission and Market).

GeoPRISMS Student Prize winners and honorable mentions will be notified after the AGU Fall Meeting and highlighted in the GeoPRISMS newsletter and website, and their host schools will be notified of their achievement. For more information and application visit the GeoPRISMS website at:

/meetings/agu-student-prize/

The GeoPRISMS Office

Questions? contact the GeoPRISMS office at info@geoprisms.nineplanetsllc.com

AVO geochemical database now available

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Whole-rock geochemical data for Quaternary Alaska volcanic rocks is now available here. This searchable database contains published whole-rock geochemical data for Quaternary volcanic rocks in Alaska, linked to geologist, publication, source volcano (where possible), and other sample and analysis metadata. The website interface allows users to query the database and return datasets as fully-documented .html or downloadable .csv tables.

Rather than a static publication, this database is intended to be updated as new volcano-related geochemical data is published. At present, the database contains analyses for more than 5,000 unique samples, making it a valuable research tool for geoscientists with interests ranging from volcano-specific processes to whole-arc data synthesis.

Please contact Cheryl Cameron (Cheryl.cameron@alaska.gov) or Seth Snedigar (seth.snedigar@alaska.gov) if you have further questions or comments about this dataset or the web interface.

Cameron, C.E., Snedigar, S.F., and Nye, C.J., 2014, Alaska Volcano Observatory Geochemical Database: Alaska Division of Geological & Geophysical Surveys Digital Data Series 8, https://www.avo.alaska.edu/geochem/index.php, doi:10.14509/29120

Job Postings: Faculty Positions, Postdoc and M.S/PhD student opportunity

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1) Tenured or Tenure-Track Assistant or Associate Professor Earth Surface Processes – City College of New York

2) Assistant professor position in geophysical fluid dynamics/climate dynamics – Northwestern University

3) Junior Professorship (W 1) in Geophysics of the Lithosphere – Christian-Albrechts-University Kiel, Germany, and GEOMAR Helmholtz Centre for Ocean Research Kiel

4) Thompson Postdoctoral Fellowship in Geophysics – Stanford University

5) Green Postdoctoral Scholar Position in Geophysics – Institute of Geophysics and Planetary Physics (IGPP) at Scripps Institution of Oceanography

6) M.S./Ph.D. Student Opportunity in Subduction Zone Geodynamics – University of Minnesota

7) Tenure-track Faculty Position in stable isotope geochemistry and paleoclimate – University of Kentucky

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1) Tenured or Tenure-Track Assistant or Associate Professor – Earth Surface Processes, City College of New York

The Department of Earth and Atmospheric Sciences at the City College of New York invites applications for a tenure-track position in Earth Surface Processes at the rank of Assistant or Associate Professor to begin August 2015. Exceptional candidates at a more senior level may be considered for a tenured appointment. We seek applicants interested in how rock, soil, and water interact with each other as a result of biotic, climatic, and tectonic forcing. Applicants from a broad range of fields that address the physical, geochemical and/or biological processes occurring in the critical zone including sedimentology, geomorphology, low-temperature mineral-fluid interactions, eco-hydrology, terrestrial paleoclimate, carbon cycle geochemistry, and thermochronology are encouraged to apply. The successful candidate is expected to establish a vigorous, externally funded research program that expands the scope of our departmental expertise while complementing and integrating with our existing strengths.  Teaching duties will include one or more of the following courses: soil science, geomorphology, hydrology, sedimentology, sustainable ecosystems, and GIS. Applicants must hold a Ph.D. degree in area(s) of experience or equivalent. Also required are the ability to teach successfully, demonstrated scholarship or achievement, and ability to cooperate with others for the good of the institution.

CUNY offers faculty a competitive compensation and benefits package covering health insurance, pension and retirement benefits, paid parental leave, and savings programs.  We also provide mentoring and support for research, scholarship, and publication as part of our commitment to ongoing faculty professional development.To apply: access the CUNY employment page on our website (http://www.cuny.edu/employment/jobsearch.html) and search for this vacancy using the Job ID (11760) or Title. Candidates should provide a CV, a cover letter, research and teaching statements, and contact information for three references.

We are committed to enhancing our diverse academic community by actively encouraging people with disabilities, minorities, veterans, and women to apply. We take pride in our pluralistic community and continue to seek excellence through diversity and inclusion. EO/AA Employer.

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2) Assistant professor position in geophysical fluid dynamics/climate dynamics – Northwestern University

The Department of Earth and Planetary Sciences at Northwestern University invites applications for a tenure track, assistant professor position in geophysical fluid dynamics/climate dynamics, to begin as early as fall 2015.  Specifically, we seek a scientist who employs theoretical, observational, and/or numerical methods to study coupled geophysical fluid dynamical processes within the atmosphere, hydrosphere, cryosphere, and/or lithosphere.  Candidates whose expertise complements that of existing faculty in solid earth geophysics, planetary science, and paleoclimate are particularly encouraged.  The successful candidate is expected to teach both undergraduate and graduate courses and lead a vibrant externally funded research program.  A Ph.D. is required at the time of appointment.  Deadline for applications is December 31, 2014. Applicants should visit http://www.earth.northwestern.edu/GFDsearch/ for submission instructions.

AA/EOE. Northwestern University is an Equal Opportunity, Affirmative Action Employer of all protected classes including veterans and individuals with disabilities. Women and minorities are encouraged to apply. Hiring is contingent upon eligibility to work in the United States.

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3) Junior Professorship (W 1) in Geophysics of the Lithosphere – Christian-Albrechts-University Kiel, Germany, and GEOMAR Helmholtz Centre for Ocean Research Kiel

The Christian-Albrechts-University and GEOMAR Helmholtz Centre for Ocean Research Kiel intend to attract more qualified women for professorships.

The Faculty of Mathematics and Natural Sciences at the Christian-Albrechts-University Kiel, Germany, and GEOMAR Helmholtz Centre for Ocean Research Kiel invite applications for a Junior Professorship (W 1) in Geophysics of the Lithosphere

The appointment will be effective from the earliest possible date. The Junior Professorship is estab-lished at GEOMAR Helmholtz Centre for Ocean Research Kiel and assigned to the Research Unit ‘Geodynamics’ within the Department ‘Dynamics of the Ocean Floor’. The successful candidate will be a full faculty member at the Christian-Albrechts-University of Kiel with according rights and duties.

We seek a dynamic individual who will develop a vigorous, internationally-recognized research pro-gram in marine seismology that makes use of the excellent infrastructure at GEOMAR including its ocean bottom seismometer pool of 100 instruments. In addition, the department maintains a broad array of geophysical instrumentation and support staff well equipped for broad pursuits in crustal imaging, seafloor and sub-bottom mapping, and seafloor geodesy.

Applicants with research interests in process-oriented studies encompassing active seismic experi-ments are particularly encouraged.  Initiation of research cruises and participation therein are expected. The applicant must demonstrate potential to establish an externally funded research program that complements and strengthens existing expertise at the department through close collaboration. Multidisciplinary cooperation with existing groups at the Christian-Albrechts-University and GEOMAR is expected.

Teaching duties will be carried out in our BSc. program “Physics of the Earth System” and MSc. pro-gram “Geophysics”. Courses are taught in English and German.

Terms and requirements for employment are specified in § 64 of the Schleswig-Holstein university law. For further information please visit www.berufungen.uni-kiel de. For inquiries about the position and department, please contact Prof. Dr. Heidrun Kopp (hkopp@geomar.de).

The Christian-Albrechts-University and GEOMAR Helmholtz Centre for Ocean Research Kiel seek to increase the proportion of female scientists in high-level positions and explicitly encourage qualified female academics to apply.

The University and GEOMAR Helmholtz Centre for Ocean Research Kiel are proactive towards em-ployment of disabled candidates.  Qualified disabled applicants will receive preference in the applica-tion process. We explicitly encourage candidates with a migration background to apply.

Candidates are not required to submit a photograph with their application and are requested not to do so.

The deadline for applications is January 15, 2015.

Please submit your application including:

– Curriculum vitae

– Copies of your diploma and PhD degrees

– List of publications and manuscripts in press

– Comprehensive research plan (max 4 pages)

– Statement of teaching interests

to:

Dekan

der Mathematisch-Naturwissenschaftlichen Fakultät

Christian-Albrechts-Universität

24098 Kiel

GERMANY

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4) Thompson Postdoctoral Fellowship in Geophysics – Stanford University

The Department of Geophysics, Stanford University, has established the Thompson Postdoctoral Fellowship to be awarded to a candidate preferably within two years of receipt of the Ph.D. The fellowship is open to applicants in any area of geophysics including new areas of research that cross existing disciplinary boundaries, so that students and recent graduates in Earth science, physics, chemistry, biology, or computational sciences with interests in the geophysical sciences are also encouraged to apply.  Our department is currently active in crustal geophysics, exploration and production geophysics, seismic imaging, rock physics, earthquake seismology, crustal deformation, stress and geomechanics, environmental geophysics, and planetary sciences. The successful candidate will have her/his own independent research agenda, but have common interests with one or more existing faculty (who will serve as a formal mentor) to participate in their research group activities.  We encourage prospective applicants to communicate in advance with prospective faculty mentors.

This honorific postdoctoral fellowship will be awarded for a one-year period that can start any time in the academic year 2015/2016, with an anticipated extension for a second year.  The compensation package includes salary of $56-62,000/year depending on experience, benefits, and a $15k one-time research allowance. Applications received by January 5, 2015, will receive fullest consideration.

How to apply:

Applications should include a statement of research interests and proposed research, curriculum vita, a list of publications, and the names and email addresses of three individuals from whom the search committee can request letters of reference. Please apply online at: https://academicjobsonline.org/ajo/jobs/5063.

The position will remain open until filled. Questions related to your submission may be directed to thompsonfellowship@sesmail.stanford.edu. More information on the department can be found at https://earth.stanford.edu/geophysics/

Stanford University is an equal opportunity employer and is committed to increasing the diversity among its students, staff, and faculty. It welcomes nominations of and applications from women, members of minority groups, protected veterans and individuals with disabilities, as well as from others who would bring additional dimensions to the university’s research, teaching and clinical missions.

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5) Green Postdoctoral Scholar Position in Geophysics – Institute of Geophysics and Planetary Physics (IGPP) at Scripps Institution of Oceanography

The Institute of Geophysics and Planetary Physics (IGPP) at Scripps Institution of Oceanography will have openings in 2015 for one or more postdoctoral Green Scholars.  Funding from the Green Foundation for Earth Sciences is matched with extramural funds for specific research projects to support these positions. Prior to submitting  an application, applicants should contact potential IGPP mentors to check whether they have a viable project. Positions are available for one year and are renewable  for a second year, subject to satisfactory performance and availability of funds. Green scholars are encouraged to broaden their experience through interaction with other researchers at IGPP and individual research goals may be pursued if project progress can be maintained. Information on recent IGPP research is available at http://igpp.ucsd.edu/about .

Applications should include a statement of research interests (1 page), dissertation abstract (less than 250 words), curriculum vitae with publications list, immigration  status, and contact information for two recommendation letter writers.  Applications should be submitted online at http://igpp.ucsd.edu/greenfoundation/application .

Review of applications will begin on December 9, 2014, and will be accepted until the position is filled. Please address questions to greenfound@ucsd.edu.

UC San Diego is an Equal Employment Opportunity (EEO) employer and welcomes all qualified applicants. Applicants will receive fair and impartial consideration without  regard to race, sex, color, religion, national origin, age, disability, veteran status, genetic data, or other legally protected status.

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6) M.S./Ph.D. Student Opportunity in Subduction Zone Geodynamics – University of Minnesota

We are seeking candidates to participate in multi-disciplinary research on subduction zone geodynamics, focusing particularly on 3-D mantle flow and thermal structures and their role in controlling geophysical and geochemical processes, such as dehydration of the subducting slab, megathrust earthquakes, intraslab earthquakes, hydrous melting, arc volcanism, and volatile recycling.  The project involves numerical modelling and global synthesis and analyses of geophysical and geochemical observations. Motivated students are encouraged to submit their CV to Dr. Ikuko Wada (iwada@umn.edu).

Sincerely,

Ikuko Wada

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7) Tenure-track Faculty Position in stable isotope geochemistry and paleoclimate – University of Kentucky

Dear colleagues,

The Department of Earth and Environmental Sciences at the University of Kentucky is seeking to fill a tenure‐track faculty position in stable isotope geochemistry with specialization in paleoclimatology. The anticipated start date is August 2015. Exceptional candidates at all ranks will be considered; relevant experience beyond the PhD is essential. The department maintains a fully equipped, state‐of‐the‐art stable isotope facility (three IRMS and full set of peripherals) for analysis of HCNO in virtually any substance. Potential collaborative research opportunities exist with faculty and staff in multiple units across the university. In addition to maintaining a productive, externally funded research program, the new faculty member will teach and mentor at the introductory, major, and graduate levels.

Applications should be submitted online at http://apply.interfolio.com/27039. Minority and female candidates are particularly encouraged to apply. We will begin review of applications on January 15, 2015, but will accept applications until the position is filled. Additional details about the department and the university are available at our web pages: http://ees.as.uky.edu and www.uky.edu. For further information, contact search committee chair Alan Fryar (alan.fryar@uky.edu).

With regards—Alan

Alan E. Fryar, Associate Professor

Department of Earth and Environmental Sciences

University of Kentucky

101 Slone Building

Lexington, KY 40506-0053 USA

e-mail: alan.fryar@uky.edu

Web: http://ees.as.uky.edu

phone: 1 859 257 4392

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Please note, new job announcements (usually) will be distributed to the GeoPRISMS Listserv on the 1st and 15th of each month.

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The GeoPRISMS Office is now hosted by University of Michigan.
Questions? Contact the GeoPRISMS Office at info@geoprisms.nineplanetsllc.com
www.geoprisms.nineplanetsllc.com
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Subduction Zone Observatory Special Interest Group Discussion at Fall AGU Meeting

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Subduction Zone Observatory Special Interest Group Discussion at Fall AGU Meeting

Thursday, December 18

3:30-5:00PM

City Club of San Francisco, Salon Room, 9th floor

155 Sansome St (~0.7 mile walk from Moscone South)

The discussion will focus on the creation of a Subduction Zone Observatory (SZO) to enable research on all facets of subduction zone processes and facilitate a systems approach to a complex, inter-linked set of processes active at subduction zones including the incoming and overriding plates. A SZO would improve our understanding of the physical processes involved in a variety of natural hazards including earthquakes, tsunamis, volcanic eruptions, and landslides. The observations would also be relevant to a number of grand challenges in Earth science, including fluid flux through the crust and mantle, geochemical processes in arcs, injection of water into the mantle, and deformation responses to megathrust earthquakes on times scales from seconds to millions of years and spatial scales from millimeters to thousands of kilometers. Our goals at this meeting are to discuss specific objectives for an SZO, identify potential international collaborators, target other geoscience communities with interests in SZO science, and to make progress towards a workshop in Fall 2015 to articulate the major science objectives and required facilities for a SZO.

2015 Marine Geoscience Leadership Symposium

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2015 Marine Geoscience Leadership Symposium

March 16-20, 2015; Washington, DC

As global headlines focus on climate change, ocean acidification, and tsunamis, marine geoscientists stand well positioned to serve the needs of society while pushing the frontiers of scientific research. To solve these challenges and forge the necessary links between science and society, marine geoscientists must reach beyond their individual laboratories, form interdisciplinary collaborations, and communicate their discoveries to the public and policymakers. The Marine Geoscience Leadership Symposium introduces these skills to early career marine geoscientists. Participants will engage in small group discussions, participate in proposal workshops, and meet with funding agencies, media representatives, and policymakers.The symposium will provide leadership and communications training and begin the process of forming interdisciplinary research collaborations.

Applicants may be from any subfield of marine geology or geophysics and should have completed their Ph.D. between December 2011 and December 2014. Selected participants will receive full participation support. International applicants may be considered. The deadline to apply is December 22, 2014. For more information, visit http://www.oceanleadership.org/mgls.

Sessions of interest at the 2015 GSA South-Central session and Japan Geoscience Union

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Several sessions of interest to the GeoPRISMS community will take place at ucpoming meetings. Abstract submission and registration deadlines are approaching.

1) 2015 GSA South Central Section Meeting, March 19-20, 2015, in Stillwater. OK and
2) Japanese Geoscience Union Meeting, May 24-28, 2015, at Makuhari Messe, Japan.

See below for more details.

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1) GSA South Central Section Meeting | March 19-20, 2015 | Stillwater, OK

Abstract deadline: December 16, 2014

Theme session T1. East African Rift, Southern Oklahoma Aulacogen, Rio Grande Rift, and other Continental Rifts: A tribute to the career of G. Randy Keller.

Description: Understanding the formation and evolution of continental rifts is important for both academic and industrial geoscientists, as evidenced by the selection of East African Rift as a focus site for the NSF GeoPRISMS program “Rift Initiation and Evolution”. This session invites presentations on the many examples of active and fossil rifts in Africa, North America and elsewhere. The session hopes to attract oral and poster presentations of original research and syntheses that will advance our understanding of processes, using geological, geophysical, structural, geochemical, and petrological approaches, that will lead to an improved knowledge of the origin of continental rifts, melt formation and hydrocarbon generation in them.

Convenors: Mohamed Abdelsalam, mohamed.abdel_salam@okstate.edu, Oklahoma State Univ.; Estella Atekwana, estella.atekwana@okstate.edu, Oklahoma State Univ.; Asish Basu, abasu@uta.edu, Univ. of Texas at Arlington; Kevin Mickus, kevinmickus@missouristate.edu, Missouri State Univ.; Robert Stern, rjstern@utdallas.edu, Univ. of Texas at Dallas.

Charlie Gilbert is running a one day Field Trip to see Cambrian igneous rocks of the Wichita Mountains, part of the S Okahoma Aulacogen.

Please visit the website at: http://www.geosociety.org/Sections/sc/2015mtg/ for more information about the meeting.

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2) Japanese Geoscience Union Meeting | May 24-28, 2015 | Makuhari Messe, Japan

Registration period is: Jan. 8-12, 2015
Cost JPY16,000- (JPGU member)
Abstract submission period: Jan. 8-Febr. 3 (JPY 3,000-)
Final submission period: Febr. 3-Febr. 18 (JPY 4,000-)

We would like to draw your attention to a symposium entitled “Mixed volatiles in subduction zones; Physical and chemical properties and processes” planned as a part of the International Session of the Annual Meeting of the Japanese Geoscience Union Meeting (JPGU2014) to be held at Makuhari Messe, May 24-28, 2015.

The objectives of this session, co-convened by B. O. Mysen (Carnegie Institution of Washington), E. Ohtani (Tohoku University), and D. Zhao (Tohoku University), are:

Principal volatiles in subduction zones and CO2 and H2O derived from devolatilization of carbonate and hydrous minerals in subducted oceanic crust and upper mantle. In the forearc region, highly reduced CH4 may be formed via deserpentinization of forarc mantle. Halogens (F and Cl) are can also be transported at least to upper mantle depth. Fluorine may, in fact, enhance the P-T stability of hydrous minerals.Release of volatiles causes changes in elastic properties of the residual devolatilized rocks, which, in turn, governs seismic velocities, density, shear strength, and compressibility. The intergranular pore fluid also affects these properties. Whether or not fluid forms an interconnected network is critical for these properties. Fluid interconnectivity also controls the extent to which the fluid fluxes melting in and above subducting slabs and the trace and isotopic signatures of the source materials of melting. Physical properties of magma affect style of eruption. These properties, in turn, are affected by H2O/CO2 and F/Cl abundance ratios.

This session will focus on observations, experiments and theory to aid our understanding of
1. Relationship between fluid composition, pressure and temperature and connectivity of intergranular fluid
2. Shear strength and elastic properties of volatile-bearing mineral assemblages
3. Pressure(depth)-temperature and redox-controlled stability of volatile-bearing minerals in
subduction zones and beyond
4. Melting phase relations and volatile compositions in subduction zones
5. Seismic activity and its relation to volatiles in minerals and in fluids and in melts
6. Solubility and solution mechanisms of major, mineral, and trace elements in silicate-saturated mixed fluids.
7. Silicate-saturated fluids and volatile-saturated melts and alteration processes in subduction zones.
8. Volatiles and style of volcanic eruption

Please visit URLs: http://www.jpgu.org/index-e.html, and http://www.jpgu.org/meeting_e, for more information about the meeting, relevant dates, its objectives, history and venue and/or contact us directly.
We truly hope you would want to contribute to this session.

Bjorn O. MYSEN
Eiji OHTANI
Dapeng Zhao

Upcoming NSF Funding Opportunities in Marine Geology and Geophysics for Early Career Faculty, Researchers, and Postdocs

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The deadlines for two funding opportunities for early career marine geoscientists are rapidly approaching. We would like to bring these opportunities to your attention, and encourage you to share this information with others who may be interested. We strongly encourage qualified candidates to apply. Below is information on both programs. Please feel free to contact Barbara Ransom at NSF (bransom@nsf.gov) for more information.

**OCE Postdoctoral Research Fellowships (solicitation # NSF 14-607)

Submission Deadline: December 8, 2014

http://www.nsf.gov/pubs/2014/nsf14607/nsf14607.pdf

This fellowship is intended to recognize beginning investigators of significant potential and provide them with experience that will establish them in positions of leadership in the scientific community. The grant provides a $62k/yr stipend for up to 24 months, up to $25k/yr for expenses and benefits, and up to $10k/yr for international collaboration. Applicants must be US citizens or permanent residents of the USA. They must have received their PhD by the start of the fellowship, must be within 2 years of getting their PhD, must not have concurrently submitted the same project to another postdoctoral program, and must be doing research within the spectrum of the sciences funded by the Division of Ocean Sciences.

**OCE Research Initiation Grants (solicitation # NSF 13-606)

Submission Deadline: January 12, 2015

http://www.nsf.gov/pubs/2013/nsf13606/nsf13606.pdf

This program provides startup funding for researchers who have been recently appointed to tenure track (or equivalent) positions at US academic institutions, with the twin goals of enhancing their research careers and broadening the participation of under-represented groups in ocean sciences. Award amounts are up to $100k total for 12 to 24 months and no salary can be involved. Applicants must be US citizens, nationals or permanent residents of the USA, are in or have been accepted to a tenure track Assistant Professor/Researcher or equivalent position at a US academic institution, and have not been in that position for more than 3 years. Qualified applicants must have no salary support as a Principal Investigator (PI) on any federal research grant since starting their position and must be doing research within the spectrum of the sciences funded by the Division of Ocean Sciences.