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1 Primary & Middle School Mathematics1–9 年级在线 2 High School Mathematics10–12 年级在线 3 University Mathematics — Year 1本科一年级在线 4 University Mathematics — Year 2本科二年级在线 5 University Mathematics — Year 3本科三年级在线

1 Primary & Middle School Physics1–9 年级在线 2 High School Physics10–12 年级在线 3 University Physics — Year 1本科一年级在线 4 University Physics — Year 2本科二年级在线 5 University Physics — Year 3本科三年级在线

1 School Chemistry — Grades 1 to 121–12 年级在线 2 University Chemistry — Year 1本科一年级在线 3 University Chemistry — Year 2本科二年级在线 4 University Chemistry — Year 3本科三年级在线

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1 Markets I: The Ecosystem and Exchange-Traded Markets市场在线 2 Markets II: Rates, FX and Credit市场在线 3 Markets III: Commodities, Energy and Crypto市场在线 4 Quantitative Methods方法在线 5 Derivatives and Volatility衍生品在线 6 Rates, Credit, XVA and Risk利率、信用与风险在线 7 Research Craft: Predictors, Backtests, Measurement, Portfolios研究在线 8 Strategies I: Equities and Futures策略在线 9 Strategies II: Volatility, Relative Value, Macro and the Bank Desks策略在线 10 Microstructure and Execution交易执行在线 11 Market Making and High-Frequency Trading做市在线 12 Machine Learning for Markets机器学习在线 13 Low-Latency Software技术在线 14 Networks, Hardware and Trading Infrastructure技术在线 15 Research, Data and Risk Platforms技术在线 16 The Desk and the Firm公司运营在线 17 The Industry: Firms, Roles and Careers职业发展在线 18 Interviews I: Maths, Probability and Speed职业发展在线 19 Interviews II: Markets, Trading Games and the Final Round职业发展在线 20 Interviews III: Code职业发展在线

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Earth and Space Sciences · 术语表

什么是 Solvus, exsolution？

又称： solvus · exsolution (mineral)

Definition 11.9 University Earth and Space Sciences — Year 3 · 第 11 章 — Thermodynamics of Rocks

The solvus is the curve, in the temperature–composition plane, that bounds the miscibility gap of a solid solution: below it, a single crystal of intermediate composition is unstable and splits into two. Exsolution (mineral) is that splitting within a crystal on cooling: lamellae of one composition grow in a host of the other.

A regular solution with W = 20\, kJ\, mol-1 (illustrative). (a) Gibbs energy of mixing at three temperatures; at 900\, K the common tangent (thin line) touches the curve at x = 0.11 and 0.89. (b) The solvus and the spinodal; a rock of bulk composition X_0 = 0.3 (vertical red line) is one phase above 1136\, K and two phases below, whose compositions follow the solvus (dashed). — A regular solution with $W = 20\,\mathrm{kJ}\,\mathrm{mol}^{-1}$ (illustrative). (a) Gibbs energy of mixing at three temperatures; at $900\,\mathrm{K}$ the common tangent (thin line) touches the curve at $x = 0.11$ and 0.89. (b) The solvus and the spinodal; a rock of bulk composition $X_0 = 0.3$ (vertical red line) is one phase above $1136\,\mathrm{K}$ and two phases below, whose compositions follow the solvus (dashed).

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