\documentclass[10pt,a4paper]{article}

% Packages
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\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
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%\usepackage[utf8x]{inputenc}    % For unicode character support
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\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{Eunicornz}
\pdfinfo{
  /Title (earth-science.pdf)
  /Creator (Cheatography)
  /Author (Eunicornz)
  /Subject (Earth Science Cheat Sheet)
}

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% This two commands together give roughly
% the right line height in the tables
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\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
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\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Earth Science Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Eunicornz} via \textcolor{DarkBackground}{\uline{cheatography.com/33171/cs/10321/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Eunicornz \\
  \uline{cheatography.com/eunicornz} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 9th January, 2017.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{4}

\begin{tabularx}{3.833cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{3.833cm}}{\bf\textcolor{white}{\{\{fa-clock-o\}\} Relative Age Dating}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{3.833cm}}{{\bf{Principle of Superposition:}} comparison of dates} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{3.833cm}}{{\bf{Principle of Lateral Continuity}} all rock formations thin out at the ends to have a lenticular shape} \tn 
% Row Count 5 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{0.89258 cm} x{2.54042 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Relative Age:Uncomformities}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{Non-comformity} & the boundary between igneous/metamorphic and sedimentary \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Angular & part of the formation is tilted but it is covered by a flat deposit \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{discomformity} & there is a gap in time between sedimentary layers \tn 
% Row Count 7 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{There are three types of unconformities that you can observe in rock formations}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{1.44186 cm} x{1.99114 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Minerals vs Non-Minerals}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Is it inorganic?}} & \{\{bl\}\}inorganic: not made of living things or the remains of living things \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
{\bf{Does it occur naturally}} & \{\{bl\}\}naturally: forms and exists in nature \tn 
% Row Count 6 (+ 2)
% Row 2
\SetRowColor{LightBackground}
{\bf{Is it a Crystalline Solid}} & \{\{bl\}\}A crystalline solid is whe its atoms are arranged inan orderly way \tn 
% Row Count 10 (+ 4)
% Row 3
\SetRowColor{white}
{\bf{Consistent chem. comp.}} & \{\{bl\}\}for each atom of this, there are atom of this \tn 
% Row Count 13 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{If yes to all 4 questions, it is a mineral. Otherwise, it is not a mineral.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{1.7165 cm} x{1.7165 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Silicates and Non-Silicates}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{{\bf{Silicates}}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{Silicone + Oxygen + fledspar, potassium, or sodium is a silicate} \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{Feldspar is the most common case of silicates} \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
96\% of the Earth's crust is composed of Silicates & \{\{bl\}\}50\% of the silicates are Feldspar and quartz \tn 
% Row Count 7 (+ 3)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{\{\{bb\}\}} \tn 
% Row Count 8 (+ 1)
% Row 5
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{\{\{bt\}\}} \tn 
% Row Count 9 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{{\bf{Non-silicates}}} \tn 
% Row Count 10 (+ 1)
% Row 7
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{non-silicates are basically the rest of the minerals that are not silicates} \tn 
% Row Count 12 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{They make up the rest 4\% of the Earth's crust} \tn 
% Row Count 13 (+ 1)
% Row 9
\SetRowColor{white}
\mymulticolumn{2}{x{3.833cm}}{They are split into 6 groups\{\{bb\}\}} \tn 
% Row Count 14 (+ 1)
% Row 10
\SetRowColor{LightBackground}
Carbonates & \{\{bl\}\}CO 3 \tn 
% Row Count 15 (+ 1)
% Row 11
\SetRowColor{white}
Halides & \{\{bl\}\}Cl or F + Na,K, or Ca \tn 
% Row Count 17 (+ 2)
% Row 12
\SetRowColor{LightBackground}
Native elements & \{\{bl\}\}uncombined \tn 
% Row Count 18 (+ 1)
% Row 13
\SetRowColor{white}
Oxides & \{\{bl\}\}O + anything but Si \tn 
% Row Count 20 (+ 2)
% Row 14
\SetRowColor{LightBackground}
Sulfates & \{\{bl\}\}SO 4 \tn 
% Row Count 21 (+ 1)
% Row 15
\SetRowColor{white}
Sulfides & \{\{bl\}\}S + I + anything else \tn 
% Row Count 23 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{1.20155 cm} x{2.23145 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Earthquakes}}  \tn
% Row 0
\SetRowColor{LightBackground}
How earthquakes start: & stress builds up at fault to the point where it is {\emph{locked}} when pressure gets too great, the rocks slip and create the earthquake \tn 
% Row Count 5 (+ 5)
% Row 1
\SetRowColor{white}
Elastic rebound & like a slinky, it deforms then settles back to its original spot \tn 
% Row Count 8 (+ 3)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{{\bf{Seismic Waves}}} \tn 
% Row Count 9 (+ 1)
% Row 3
\SetRowColor{white}
{\emph{Body Wave}} & travels through the middle of the bodies \tn 
% Row Count 11 (+ 2)
% Row 4
\SetRowColor{LightBackground}
P-waves & can go through solids, liquids, and gases and faster than S-waves \tn 
% Row Count 14 (+ 3)
% Row 5
\SetRowColor{white}
S-waves & can only go through solids and slower than P-waves \tn 
% Row Count 16 (+ 2)
% Row 6
\SetRowColor{LightBackground}
{\emph{Surface Wave}} & travels along the surface of the body \tn 
% Row Count 18 (+ 2)
% Row 7
\SetRowColor{white}
Rayleigh Waves & elliptical rolling motions \tn 
% Row Count 19 (+ 1)
% Row 8
\SetRowColor{LightBackground}
Love Waves & side-to-side \tn 
% Row Count 20 (+ 1)
% Row 9
\SetRowColor{white}
Shadow zones & Parts of the Earth where body waves can't reach \tn 
% Row Count 22 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}