[cid:image001.jpg@01D77305.93809FF0]  Hear from GIA researchers on the latest topics:

Gemstones from the Sea

Thursday, July 8 at 10:00 a.m. PDT

Marine treasures such as shells, pearls, and corals have been valued by humankind since antiquity. These biogenic gems are produced by marine organisms and possess mineral compositions similar to one another. What is the earliest evidence of human use of these materials? What mollusk species commonly produce pearls? What is precious coral and what are its major sources? What other biogenic gem materials can be found in our oceans? Dive deep into the source and science of these gemstones with GIA Senior Manager of Pearl Identification Dr. Chunhui Zhou.

Speaker:

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Dr. Chunhui Zhou is the senior manager of pearl identification at GIA New York. His main area of interest is the identification and research of pearls and related materials.

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Register  hhttps://discover.gia.edu/webinar-gemstones-from-sea.html

Recorded past GIA Knowledge Sessionshttps://www.gia.edu/knowledge-sessions-webinar

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Postdoc in stable isotopes and reaction kinetics
Indiana University
Department of Earth and Atmospheric Sciences

Overview:

Applications are invited for a Postdoctoral Research Associate at Indiana University, USA.

The project aims using non-traditional stable isotopes to measure reaction rates and understand the mechanisms of mineral-aqueous solution reactions. See our recent publications for details (Zhu et al., 2016, Chemical Geology; Zhu et al, 2020, 2021, GCA). The project will employ a combined experimental, analytical, theoretical, and modeling approach.

The successful candidate will hold a Ph.D. in earth sciences or a closely related field. A strong background in either stable isotopes or kinetics and thermodynamics is required. Experience performing aqueous geochemical experiments, and using geochemical equilibrium and kinetics models is highly desirable.

Salary is competitive and includes fringe benefits. The initial appointment will be for one year, with the expectation of renewable for another two years, subject to performance and funding availability. The candidate will be based on the Bloomington campus of Indiana University, and will have access to an extensive suite of analytical tools, including MC-ICP-MS, TIMS, ICP-OES, ICP-MS, FESEM, and FETEM. Indiana University has some of the most powerful high-performance computing facilities in the nation that are free for faculty and students to use. The position requires excellent communication and interpersonal skills, intellectual curiosity, and a willingness to explore unfamiliar aspects of earth sciences.

More information about ongoing research in Zhu’s group may be found at: www.hydrogeochem.earth.indiana.eduhttp://www.hydrogeochem.earth.indiana.edu

Major Duties/Responsibilities:
·        Perform batch, mixed flow reactor, and column experiments examining the interactions between minerals and aqueous solutions
·        Analyze experimental run products using analytical techniques geared toward both solid and fluid characterization
·        Perform spreadsheet computations and geochemical modeling to interpret the experimental results
·        Develop and apply theoretical models to decipher the thermodynamics of isotope fractionation and reaction mechanisms
·        Present and report research results and publish scientific results in peer-reviewed journals in a timely manner

Application details:

Applications, consisting of a single PDF file combining the four documents listed below, should be emailed directly to chenzhu@indiana.edumailto:chenzhu@indiana.edu, with the subject line: Postdoc Position. The start date is negotiable. The tentative application deadline is 20 October 2021, but applications will be considered on a rolling basis until the position is filled. Online application can be submitted via https://indiana.peopleadmin.com/postings/11356.

Required documents:

1. A 1-page cover letter expressing interest in and qualifications for this position

2. A CV with a list of all publications and research grants

3. A 1-page research statement summarizing previous research experience

4. The names and contact information of at least two referees with knowledge of your research and academic experience

Required Qualifications:
·        A complted Ph.D. degree by start date and within the last five years
·        Firm grasp of aqueous geochemistry and/or isotope geochemistry
·        Excellent written and oral communication skills

Preferred Qualifications
·        Research experience in an aqueous geochemical laboratory, preferably performing experiments and analyses
·        Research experience in stable isotope geochemistry
About Indiana University and Department of Earth and Atmospheric Sciences
Indiana University is an R1 university (Research Universities with the Highest research activity in the Carnegie Classification of Institutions of Higher Education) and is in its bicentennial celebration in 2020. The Department of Earth and Atmospheric Sciences (formerly the Department of Geological Sciences) was founded 125 years ago and has a long tradition of excellence in geochemistry. The City of Bloomington is a delightful, safe, and affordable college town ranked among the top livable cities in the USA. The university also has a famed school of music, which hosts year-around concerts, ballet, opera, and other cultural activities. Indiana University is an Equal Opportunity/Affirmative Action employer. Women and minorities are especially encouraged to apply.