Myriam Telus
Postdoctoral Fellow

Myriam Telus

Research Interests

Cosmochemistry; early solar system chronology; thermal metamorphism of chondrites; differentiation of planetary bodies; secondary ion mass spectrometry

Academics

B.S., Geophysical Sciences, University of Chicago, 2008
Ph.D., Geology & Geophysics, University of Hawai'i at Mānoa, 2015

Contact & Links

  • (202) 478-8459 | fax: (202) 478-8821
  • mtelus at carnegiescience.edu
  • Department of Terrestrial Magnetism
    Carnegie Institution of Washington
    5241 Broad Branch Road, NW
    Washington, DC 20015-1305
  • curriculum vitae
  • Personal Website

Overview

Myriam Telus
Optical microscope image (in reflected light) of chondrules (whitish, circular features) from a primitive meteorite.

Myriam Telus’s research in cosmochemistry involves constraining early solar system history through isotopic analyses of meteorites and their components. She is especially interested in constraining the source, abundance, and distribution of short-lived radionuclides in the early solar system to constrain early solar system chronology and understand the conditions surrounding the solar system’s formation. She is also interested in understanding the role of volatiles during thermal metamorphism and differentiation of planetary bodies.

For her dissertation, Telus measured the in situ Fe and Ni isotopic composition of chondrules from primitive chondrites in order to develop the 60Fe-60Ni (t1/2=2.6 Myr) radionuclide system for chronology. She combined my isotopic analyses with synchrotron X-ray fluorescence mapping of chondrules to evaluate the mobility of Fe and Ni due to secondary alteration. In another aspect of her graduate research, Telus analyzed the in situ 26Al-26Mg (t1/2=0.7 Myr) systematics of H4 chondrites to place constraints on the thermal history of the chondrite parent asteroid.

At DTM, Telus will measure the in situ C and O isotopic composition, along with 53Mn-53Cr (t1/2=3.7 Myr) systematics, of carbonates from CM carbonaceous chondrites to constrain the compositional evolution of fluids and the timing of aqueous alteration on chondrite parent bodies. She will also carry out in situ D/H analyses of phosphates from metamorphosed ordinary chondrites to investigate the role of fluids and volatiles during thermal metamorphism of chondrite parent bodies.