# Cheatsheets

This page is just for building cheatsheets. you might be better off looking at Category:Cheatsheets.

## Contents

## Basic cheatsheet

Greek alphabet SI units SI prefixes Skewed distributions Lognormal distribution Normal distribution Geological timescale Symbol shortcuts Conversion factors Error types Principles of analytic design Rule of 70 Basic trigonometry Bayes' theorem

## Geophysics cheatsheet

Powers of 2 Nyquist frequency Ghost notch Filter kernels Attribute table Decibels Polarity Poisson's ratio Second Lamé parameter Shear modulus Bulk modulus P-wave modulus Young's modulus Typical rock properties Types of mean AVO classes Aki–Richards equation Tuning and resolution Upcoming meetings Norm Cooper's acquisition planning rules Smoothing filters

## Geological cheatsheet

SI units SI prefixes Skewed distributions Lognormal distribution Geological timescale Symbol shortcuts Conversion factors Typical rock properties Types of mean Error types Grain size Principles of analytic design Upcoming meetings Rule of 70 Greek alphabet Bayes' theorem

## AVO cheatsheet

Types of noise Gather problems AVO friendly processes AVO unfriendly processes Types of seismic inversion Basic trigonometry AVO classes Aki–Richards equation Tuning and resolution AVO crossplot loci Polarity Poisson's ratio Second Lamé parameter Shear modulus Bulk modulus P-wave modulus Young's modulus Bayes' theorem

## Rock Physics cheatsheet

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Intrinsic Elastic Moduli LMR "Lambda-Mu-Rho" Equations" Bulk Density Hashin-Shritkman Bounds Brittleness Elastic Impedance Elastic properties of common sedimentary rock forming minerals Gassmann's equation Rock Physics Template