https://ideawaza.com/api.php?action=feedcontributions&feedformat=atom&user=216.146.97.0%2F24 IdeaWazaWiki - User contributions [en] 2026-09-30T16:14:08Z User contributions MediaWiki 1.46.0 https://ideawaza.com/index.php?title=Some_information_on_geology&diff=52454 Some information on geology 2004-10-06T20:56:14Z <p>216.146.97.241: </p> <hr /> <div></div> 216.146.97.241 https://ideawaza.com/index.php?title=Some_information_on_geology&diff=52453 Some information on geology 2004-10-06T20:52:33Z <p>216.146.97.241: Physical Geology</p> <hr /> <div>&lt;h1&gt;Volcanism&lt;/h1&gt;<br /> There are three(3) types of lavas formed by volcanoes. Mafic, Intermediate, and Felsic.&lt;br&gt;<br /> &lt;B&gt;&lt;U&gt;Mafic&lt;/B&gt;&lt;U&gt;(Basaltic)&lt;/U&gt;&lt;br&gt;<br /> &lt;li&gt;%SiO2: &lt; 50%&lt;/li&gt;<br /> &lt;li&gt;%FeMg: 4%&lt;/li&gt;<br /> &lt;li&gt;Temp: up to 1500C&lt;/li&gt;<br /> &lt;li&gt;Viscosity: Low&lt;/li&gt;<br /> &lt;li&gt;Eruptive Behavior: gentle&lt;/li&gt;<br /> &lt;li&gt;Distribution: divergent plate boundries, hot spots, convergent plate boundries&lt;/li&gt;<br /> <br /> &lt;B&gt;&lt;U&gt;Intermediate&lt;/B&gt;&lt;U&gt;(Andesitic)&lt;/U&gt;&lt;br&gt;<br /> &lt;li&gt;%SiO2: ~60%&lt;/li&gt;<br /> &lt;li&gt;%FeMg: ~3%&lt;/li&gt;<br /> &lt;li&gt;Temp: ~1000C&lt;/li&gt;<br /> &lt;li&gt;Viscosity: Intermediate&lt;/li&gt;<br /> &lt;li&gt;Eruptive Behavior: explosive&lt;/li&gt;<br /> &lt;li&gt;Distribution: convergent plate boundries&lt;/li&gt;<br /> <br /> &lt;B&gt;&lt;U&gt;Felsic&lt;/B&gt;&lt;U&gt;(Rhyolitic)&lt;/U&gt;&lt;br&gt;<br /> &lt;li&gt;%SiO2: &gt;70%&lt;/li&gt;<br /> &lt;li&gt;%FeMg: 2%&lt;/li&gt;<br /> &lt;li&gt;Temp: 700C&lt;/li&gt;<br /> &lt;li&gt;Viscosity: High&lt;/li&gt;<br /> &lt;li&gt;Eruptive Behavior: explosive&lt;/li&gt;<br /> &lt;li&gt;Distribution: hot spots in continental crusts (Yellowstone National Park)&lt;/li&gt;</div> 216.146.97.241 https://ideawaza.com/index.php?title=Some_information_on_geology&diff=52452 Some information on geology 2004-10-06T20:49:45Z <p>216.146.97.241: </p> <hr /> <div>There are three(3) types of lavas formed by volcanoes. Mafic, Intermediate, and Felsic.&lt;br&gt;<br /> &lt;B&gt;&lt;U&gt;Mafic&lt;/B&gt;&lt;U&gt;(Basaltic)&lt;/U&gt;&lt;br&gt;<br /> &lt;li&gt;%SiO2: &lt; 50%&lt;/li&gt;<br /> &lt;li&gt;%FeMg: 4%&lt;/li&gt;<br /> &lt;li&gt;Temp: up to 1500C&lt;/li&gt;<br /> &lt;li&gt;Viscosity: Low&lt;/li&gt;<br /> &lt;li&gt;Eruptive Behavior: gentle&lt;/li&gt;<br /> &lt;li&gt;Distribution: divergent plate boundries, hot spots, convergent plate boundries&lt;/li&gt;<br /> &lt;B&gt;&lt;U&gt;Intermediate&lt;/B&gt;&lt;U&gt;(Andesitic)&lt;/U&gt;&lt;br&gt;<br /> &lt;li&gt;%SiO2: ~60%&lt;/li&gt;<br /> &lt;li&gt;%FeMg: ~3%&lt;/li&gt;<br /> &lt;li&gt;Temp: ~1000C&lt;/li&gt;<br /> &lt;li&gt;Viscosity: Intermediate&lt;/li&gt;<br /> &lt;li&gt;Eruptive Behavior: explosive&lt;/li&gt;<br /> &lt;li&gt;Distribution: convergent plate boundries&lt;/li&gt;<br /> <br /> &lt;B&gt;&lt;U&gt;Felsic&lt;/B&gt;(Rhyolitic)&lt;U&gt;&lt;/U&gt;&lt;br&gt;<br /> &lt;li&gt;%SiO2: &gt;70%&lt;/li&gt;<br /> &lt;li&gt;%FeMg: 2%&lt;/li&gt;<br /> &lt;li&gt;Temp: 700C&lt;/li&gt;<br /> &lt;li&gt;Viscosity: High&lt;/li&gt;<br /> &lt;li&gt;Eruptive Behavior: explosive&lt;/li&gt;<br /> &lt;li&gt;Distribution: hot spots in continental crusts (Yellowstone National Park)&lt;/li&gt;</div> 216.146.97.241 https://ideawaza.com/index.php?title=Some_information_on_geology&diff=52451 Some information on geology 2004-10-05T17:23:49Z <p>216.146.97.241: </p> <hr /> <div>There are three types of lavas formed by volcanoes. Mafic, Intermediate, and Felsic.&lt;br&gt;<br /> <br /> '''Mafic'''(Basaltic)&lt;br&gt;<br /> %SiO2: &lt; 50%&lt;br&gt;<br /> %FeMg: 4%&lt;br&gt;<br /> Temp: up to 1500C&lt;br&gt;<br /> Viscosity: Low&lt;br&gt;<br /> Eruptive Behavior: gentle&lt;br&gt;<br /> Distribution: divergent plate boundries, hot spots, convergent plate boundries&lt;br&gt;<br /> <br /> '''Intermediate'''(Andesitic)&lt;br&gt;<br /> %SiO2: ~60%&lt;br&gt;<br /> %FeMg: ~3%&lt;br&gt;<br /> Temp: ~1000C&lt;br&gt;<br /> Viscosity: Intermediate&lt;br&gt;<br /> Eruptive Behavior: explosive&lt;br&gt;<br /> Distribution: convergent plate boundries&lt;br&gt;<br /> <br /> '''Felsic'''(Rhyolitic)&lt;br&gt;<br /> %SiO2: &gt;70%&lt;br&gt;<br /> %FeMg: 2%&lt;br&gt;<br /> Temp: 700C&lt;br&gt;<br /> Viscosity: High&lt;br&gt;<br /> Eruptive Behavior: explosive&lt;br&gt;<br /> Distribution: hot spots in continental crusts (Yellowstone National Park)</div> 216.146.97.241 https://ideawaza.com/index.php?title=Some_information_on_geology&diff=52450 Some information on geology 2004-10-05T17:19:32Z <p>216.146.97.241: Types Of Lava</p> <hr /> <div>There are three types of lavas formed by volcanoes. Mafic, Intermediate, and Felsic.<br /> <br /> '''Mafic'''(Basaltic)<br /> %SiO2: &lt; 50%<br /> %FeMg: 4%<br /> Temp: up to 1500C<br /> Viscosity: Low<br /> Eruptive Behavior: gentle<br /> Distribution: divergent plate boundries, hot spots, convergent plate boundries<br /> <br /> '''Intermediate'''(Andesitic)<br /> %SiO2: ~60%<br /> %FeMg: ~3%<br /> Temp: ~1000C<br /> Viscosity: Intermediate<br /> Eruptive Behavior: explosive<br /> Distribution: convergent plate boundries<br /> <br /> '''Felsic'''(Rhyolitic)<br /> %SiO2: &gt;70%<br /> %FeMg: 2%<br /> Temp: 700C<br /> Viscosity: High<br /> Eruptive Behavior: explosive<br /> Distribution: hot spots in continental crusts (Yellowstone National Park)</div> 216.146.97.241