edimentary),
     <code>gneis_o</code> (Precambrian gneisses - Oslo), <code>gneis_r</code> (- Randsfjord),
     <code>magm</code> (Magmatic rocks)</p></dd>

  <dt><code>altitude</code></dt>
<dd><p>altitude, a numeric vector</p></dd>

  <dt><code>Cu</code></dt>
<dd><p>Copper, a numeric vector</p></dd>

  <dt><code>Fe</code></dt>
<dd><p>Iron, a numeric vector</p></dd>

  <dt><code>K</code></dt>
<dd><p>Potassium, a numeric vector</p></dd>

  <dt><code>Mg</code></dt>
<dd><p>Magnesium, a numeric vector</p></dd>
