Houjun's Academic Home Page
Last edited: April 4, 2026👋 Howdy, I'm Houjun Liu!
I’m a third-year coterminal MSCS and BSCS student in the Computer Science Department at Stanford University, grateful to be advised by Prof. Mykel Kochenderfer. In the course of my research, I have also had the fortunate opportunity to work with Stanford NLP under Prof. Chris Manning, CMU TalkBank under Prof. Brian MacWhinney, and Prof. Xin Liu at UC Davis Engineering. I am affiliated with the Stanford NLP Group and Stanford Intelligent Systems Lab. I’m also visiting Microsoft Research Frontiers as a research scientist.
SU-EARTHSYS11 APR202026
Last edited: April 4, 2026Melting Point
- (denser) mafic rocks crystalize at higher temperatures
- (lighter) felsic rocks crystalize at lower temperaturers
Bowen’s Reaction Series
Since different minerals melt at different tempreatures (as in above), we have a…
Partial Melting
Partial Melting! This results in the felsic runoff first, and then the
Technology: baiyun.jemoka.com
Last edited: April 4, 2026Hostname: baiyun.jemoka.com
Technology: MacBook Air M5
Description: Blue MacBook Air 2025
Lost
If you have stumbled upon this page due to finding this device in the wild, thank you so much! Reach out to [email protected] or +1 650 209-0966 to get in touch. Please do the right thing.
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SU-EARTHSYS11 APR012026
Last edited: April 4, 2026Big Bang
Big Bang: 13 billion years ago
All matter and energy in the Universe started out as infinitesimally small point, universe begin 13.8 / 12.5 billion years ago (dependent measurements).
Coalesce: 200 million years after big bang
Hydrogen, etc., cluster. Swinging nebulae of hydrogen and helium. Proto-planetary disk.
Star formation: 800 million years after big bang
Stellar nucleasynthesis; elements up to 26 protons.
Planet Formation: 5 or 6 million years ago
Planet formulation in the solar system. Rings of “planetesimals” form. As gas and particples start to acrete.
SU-EARTHSYS11 APR132026
Last edited: April 4, 2026Minerals
Yes.
Elements
Pure substance that cannot be separated.
Atom
Smallest piece of element containing basic characteristic: protons + neutrons.
Ion
Non-netural atoms (anion—extra negative charge, more electrons that protons; cation—extra positive charge, less electrons than protons).
Bonds
Bonds forms. Arrange of bonds can determine mineral properties (diamond vs. graphite).
Ionic
When two polarized atoms attract: cation and anions attract
Covalent
When atoms share electrons
Polymorph
Minerals with the same composition but different structures like diamond (hardest material) and graphite (softest.)