Center for Meteorite Studies

The chondrite meteorites take their name from chondrules, the nearly spherical, silicate-rich particles they contain.  They are the most abundant type of stony meteorite, and contain some of the first objects to have formed in the Solar System, including calcium-aluminum-rich inclusions and chondrules.  Chondrules, sub-mm to mm size igneous spheres, formed in the early Solar System ~4.5 billion years ago from flash-heated little clumps of dust. Many questions, however, still remain:  How did these dust grains stick together, where did this dust come from, and how long was our early Solar System dusty?

Dr. Devin SchraderA recent paper led by Center Assistant Director Dr. Devin Schrader, in collaboration with Dr. Kazuhide Nagashima (University of Hawai‘i at Manoa), Dr. Scott Waitukaitis (Leiden University), Dr. Jemma Davidson (Carnegie Institution of Washington), Dr. Tim McCoy (Smithsonian Institution), Dr. Harold Connolly (Rowan University), and Dr. Dante Lauretta (University of Arizona), determined that dust likely stuck together via particle agglomeration by electrostatic charging of grains during collision, chondrules in part formed from refractory inclusions, and our Solar System retained a dusty disk until at least ~3.7 million years after the formation of the first solids.

This exciting new research not only strengthens the link between comets and meteorites by contraining the physical distribution of solids in the early Solar System, especially in comet-forming regions, but also gives a strong indication of the mechanism of chondrule formation, based on particle morphology.

Read the full paper here – available free online through February 25!

Category: CMS News

Comments are closed.


Sign Up for Center Updates!

Be the first to learn about CMS events and news; sign up for email updates here!

Postdoctoral Scholar Opportunities!

The Center for Meteorite Studies at Arizona State University invites applications for 2 Postdoctoral Research Associates.  Click here for details!

Meteorite of the Month

Oued Bourdim 001

January's Meteorite of the Month is Oued Bourdim 001, a pallasite (PES) found in Morocco in 2014. According to the Meteoritical Bulletin (MB 104): In November, 2007, Brahim Oubadi from …

Upcoming Events

January 2018
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
December 31, 2017 January 1, 2018 January 2, 2018 January 3, 2018 January 4, 2018 January 5, 2018 January 6, 2018
January 7, 2018 January 8, 2018 January 9, 2018 January 10, 2018 January 11, 2018 January 12, 2018 January 13, 2018
January 14, 2018 January 15, 2018 January 16, 2018 January 17, 2018 January 18, 2018 January 19, 2018 January 20, 2018
January 21, 2018 January 22, 2018 January 23, 2018 January 24, 2018 January 25, 2018 January 26, 2018 January 27, 2018
January 28, 2018 January 29, 2018 January 30, 2018 January 31, 2018 February 1, 2018 February 2, 2018 February 3, 2018