Analysis of micrometeorites reveals H chondrite needles in L Chondrite haystack

Thu, 03/17/2016 - 16:04 -- pheck

Philipp Heck (Robert A. Pritzker Associate Curator of Meteoritics and Polar Studies), Surya Rout (Postdoctoral Research Scientist), Krysten Villalon (Univ. of Chicago Graduate Student) and Lund University’s Professor Birger Schmitz (also a Field Museum Research Associate) with colleagues from the University of Wisconsin published a new paper on 470-million-year-old fossil micrometeorites recovered from marine sediments in Sweden and Russia.

Field Museum Meteorite Resolves 35-Year-Old Debate

Thu, 03/10/2016 - 21:13 -- pheck

University of Chicago graduate student François Tissot, along with his advisor Professor Nicolas Dauphas and Professor Emeritus Larry Grossman (both FMNH Research Associates), have discovered evidence that a rare element, curium, was present during the formation of the Solar System. The finding ends a 35-year-old debate on its possible presence in the early Solar System, and plays a crucial role in reassessing models of stellar evolution and synthesis of elements in stars.

Refractory Metal Nuggets Paper published in Geochimica et Cosmochimica Acta

Wed, 10/21/2015 - 15:07 -- pheck

University of Chicago Graduate Student Levke Kööp, her co-advisor Robert A. Pritzker Associate Curator Philipp Heck and colleagues from Germany are authors on an article on 4.6-billion-year old metal nuggets in the journal Geochimica and Cosmochimica Acta. These micro-nuggets made of rare metals like iridium and tungsten are found inside the oldest minerals (hibonites and spinels) that formed in the Solar System.

Fossil Meteorites on Public Exhibit – Extended

Fri, 11/07/2014 - 10:55 -- pheck

The rare fossil meteorites are now on public exhibit at the Field Museum in the Main Hall (Stanley Field Hall next to Sue) extended until April 2015. After that they will be incorporated into a permanent exhibit that will open end of 2015. This is the first and only exhibit of fossil meteorites in the Western Hemisphere.

To learn more about the fossil meteorites watch the BrainScoop video and read the News article.