When molten lava escapes the Earth and reaches the surface geologists say that it is extrusive volcanism. When molten magma cools and hardens beneath the surface of the Earth, we say that it is intrusive volcanism.
www.kidsgeo.com/geology-for-kids/0049-volcanism.php www.kidsgeo.com/geology-for-kids/0049-volcanism.php
Intrusive Volcanism. What happens below the surface? Plutons. Large masses of intrusive igneous rock. Most commonly granite. ...
www.phs.d211.org/science/wyssbj/Geology/Intrusive%20Vol... www.phs.d211.org/science/wyssbj/Geology/Intrusive%20Volcanism.ppt
The intrusive volcanism can change the shape of the earth's crust because it will bring a different mass into the affected region, and this mass is hotter than the previous existing rocks, causing dilatation and a thermal anomaly in the region, with uplift.
www.madsci.org/posts/archives/2001-11/1006796431.Es.r.h... www.madsci.org/posts/archives/2001-11/1006796431.Es.r.html
Intrusive volcanism is the movement of molten material (magma) beneath the surface of the earth. Batholiths are huge, deep reservoirs of magma that seem to extend down to the mantle. Stocks are smaller batholith-like formations;
www.utdallas.edu/~ledbeter/g11.htm
The formation and structure of volcanoes are profiled in "Volcanism"; then different types of rocks formed b y magma cooling underground are described in "Intrusive Igneous Rocks".
www.sfsu.edu/~avitv/avcatalog/81254.htm
Program 13: VOLCANISM ... Summarize volcanism in the solar system. ... What to Knows! VIDEO Program 14: Intrusive Igneous Rocks; TEXT Chapter 3: Igneous Rocks,Intrusive Activity and the origin of Igneous Rocks...
oscar.ctc.edu/geology/WtoK13,14.html
The eruption of the Wasp Spring Ignimbrite (WSI) signaled a new eruptive episode of felsic volcanism in the Park. Two samples of the WSI yielded ages of 29.48±0.19 Ma and 29.22±0.12 Ma.
gsa.confex.com/gsa/2006AM/finalprogram/abstract_116392.... gsa.confex.com/gsa/2006AM/finalprogram/abstract_116392.htm
tending or apt to intrude; coming without invitation or welcome: intrusive memories of a lost love. ... Use Intrusive in a Sentence ... See web results for Intrusive...
dictionary.reference.com/browse/Intrusive dictionary.reference.com/browse/Intrusive
Intrusive rocks ... Intrusive thoughts ... Intrusive structure...
thesaurus.reference.com/browse/intrusive thesaurus.reference.com/browse/intrusive
Cosmic Lexicon: Intrusive ... Geological Glossary: Intrusive ... What is intrusive volcanism?
www.answers.com/topic/intrusive www.answers.com/topic/intrusive