সব বই

পেশাদার

1 Markets I: The Ecosystem and Exchange-Traded Marketsবাজার অনলাইন 2 Markets II: Rates, FX and Creditবাজার অনলাইন 3 Markets III: Commodities, Energy and Cryptoবাজার অনলাইন 4 Quantitative Methodsপদ্ধতি অনলাইন 5 Derivatives and Volatilityডেরিভেটিভস অনলাইন 6 Rates, Credit, XVA and Riskসুদহার, ঋণ ও ঝুঁকি অনলাইন 7 Research Craft: Predictors, Backtests, Measurement, Portfoliosগবেষণা অনলাইন 8 Strategies I: Equities and Futuresকৌশল অনলাইন 9 Strategies II: Volatility, Relative Value, Macro and the Bank Desksকৌশল অনলাইন 10 Microstructure and Executionএক্সিকিউশন অনলাইন 11 Market Making and High-Frequency Tradingমার্কেট মেকিং অনলাইন 12 Machine Learning for Marketsমেশিন লার্নিং অনলাইন 13 Low-Latency Softwareপ্রযুক্তি অনলাইন 14 Networks, Hardware and Trading Infrastructureপ্রযুক্তি অনলাইন 15 Research, Data and Risk Platformsপ্রযুক্তি অনলাইন 16 The Desk and the Firmপ্রতিষ্ঠান অনলাইন 17 The Industry: Firms, Roles and Careersক্যারিয়ার অনলাইন 18 Interviews I: Maths, Probability and Speedক্যারিয়ার অনলাইন 19 Interviews II: Markets, Trading Games and the Final Roundক্যারিয়ার অনলাইন 20 Interviews III: Codeক্যারিয়ার অনলাইন
অ্যাপ পরিচিতি Coach সাইন ইন পড়া শুরু করো

বইগুলো এখনো বাংলা ভাষায় পাওয়া যায় না — ইংরেজি সংস্করণ দেখানো হচ্ছে।

Earth and Space Sciences · পরিভাষা

Isostasy; compensation depth কী?

অন্য নাম: isostasy · compensation depth

Definition 12.4 High School Earth and Space Sciences · অধ্যায় 12 — Lithosphere and Asthenosphere

Isostasy is the balance in which the outer layers of the Earth float on the asthenosphere: at a depth in the mantle called the compensation depth, every column of rock of the same cross-section, from the surface down to that depth, has the same weight, whatever the relief above it.

Airy’s model of isostasy (not to scale). The crust is everywhere of the same density; where it stands high, it is thick and has a root that reaches deep into the denser mantle. Under the ocean, the crust is thin. All three columns weigh the same down to the compensation depth.
Airy’s model of isostasy (not to scale). The crust is everywhere of the same density; where it stands high, it is thick and has a root that reaches deep into the denser mantle. Under the ocean, the crust is thin. All three columns weigh the same down to the compensation depth.
প্রসঙ্গসহ পড়ো →
Definition 11.3 University Earth and Space Sciences — Year 1 · অধ্যায় 11 — Isostasy and Gravity Anomalies

A region is in isostasy, or isostatic equilibrium, when there exists a depth, the compensation depth, at which the pressure is the same at every point of the horizontal surface, whatever the relief above. Below the compensation depth the rocks behave as a fluid at rest; above it, the columns of crust and mantle float on them.

The two classical models of isostasy, for three columns standing 0, 2 and 4\, km above sea level (heights exaggerated five times against depths; densities in kg\, m-3). (a) Airy: one crustal density, a root 4.5 times the height. (b) Pratt: one compensation depth, lighter columns under higher ground. Every column carries the same mass per unit area above the dashed compensation depth.
The two classical models of isostasy, for three columns standing 0, 2 and 4 km4\,\mathrm{km} above sea level (heights exaggerated five times against depths; densities in kg m−3\mathrm{kg}\,\mathrm{m}^{-3}). (a) Airy: one crustal density, a root 4.5 times the height. (b) Pratt: one compensation depth, lighter columns under higher ground. Every column carries the same mass per unit area above the dashed compensation depth.
প্রসঙ্গসহ পড়ো →