Jinping Hu

About me

I am a PhD candidate in School of Earth and Space Exploration, Arizona State University, supervised by Dr. Tom Sharp. I am interested in the microscopic shock feature in meteorites and its implication to Earth and planetary sciences.

Shock Metamorphism in Meteorites

Identify high-pressure minerals by Field Emission Gun - SEM

The occurrence of high-pressure mineral is indicative of the physical condition during shock.

Olivine transformation to ringwoodite lamellae (left) and disproportionation to bridgmanite plus oxide (right) in shergottite

FIB-TEM micro-analysis

Characterization of high-pressure minerals from shock melt requires nanometer resolution technique.

SEM (left, middle) and transmission elelctron microscope (right) micrograph of a focused ion beam section from shock melt in ordinary chondrite

Many other methods: Raman spectroscopy, synchrotron in-situ X-ray diffraction, etc.

Planetary Collision

Pressure-temperature-time (P-T-t) history extracted from shocked meteorites reflects the condition of their corresponding impact events. i.e. Nanometer shock feature constrains kilometer planetary collision!

iSALE hydrocode simulation of 30-60km chondritic asteroids collision (left) and 500m projectile impact cratering on Mars (right). Color indicates temperature and pressure.

Shock Experiments

Laboratory shock experiment is an important method to study the behavior of material during shock. e.g. Noble gas diffusivity in shocked gem-quality zircon is useful for better understanding the shock resetting of noble gas chronometer in terrestrial impact events.

Table gas gun (left) built by Dr. O. Tschauner at UNLV and fractured and deformed Sri Lanka zircon (right) shocked by the facility shown on the left