<?xml version="1.0" encoding='utf-8'?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN" "http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>
<card id="card1" title="Petrology - Page 1 - Wikipedia">
<p>
<a accesskey="3" href="page.php?w=petrology&amp;p=2">3.Next</a>
</p>
<p><b>Petrology</b>  is the branch of <a href="page.php?w=geology">geology</a> that studies <a href="page.php?w=rock_%28geology%29">rocks</a>, their <a href="page.php?w=mineralogy">mineralogy</a>, composition, texture, structure and the conditions under which they form. Petrology has three subdivisions: <a href="page.php?w=igneous_petrology">igneous</a>, <a href="page.php?w=metamorphic_rock">metamorphic</a>, and <a href="page.php?w=sedimentology">sedimentary petrology</a>. Igneous and metamorphic petrology are commonly taught together because both</p><p>
<a accesskey="3" href="page.php?w=petrology&amp;p=2">3.Next</a>
</p>

<do type="prev" label="Search">
        <go href="search.wml"/>
</do>

</card>
</wml>
