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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 Geotherm; geothermal gradient？

又称： geotherm · geothermal gradient

Definition 12.3 High School Earth and Space Sciences · 第 12 章 — Lithosphere and Asthenosphere

A geotherm is the curve of temperature against depth beneath a place. The geothermal gradient is the rise of temperature per unit of depth, in degrees per kilometre.

A model geotherm under a continent (blue) and the temperature at which mantle rock (peridotite, without water) begins to melt (orange). The geotherm is computed from the mean heat flow of the continents and measured rock properties; in the asthenosphere (grey) it rises slowly. The dashed line shows how the lithosphere’s steeper rise would continue. The two curves come closest, about 140\, C apart, near the base of the lithosphere. — A model geotherm under a continent (blue) and the temperature at which mantle rock (peridotite, without water) begins to melt (orange). The geotherm is computed from the mean heat flow of the continents and measured rock properties; in the asthenosphere (grey) it rises slowly. The dashed line shows how the lithosphere’s steeper rise would continue. The two curves come closest, about $140\,{}^{\circ}\mathrm{C}$ apart, near the base of the lithosphere.

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