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intrusion |
Also found in: Medical, Legal, Wikipedia, Hutchinson | 0.05 sec. |
intrusionUnauthorized access to a computer system or network. See intruder and IDS. intrusion 1. Geology a. the movement of magma from within the earth's crust into spaces in the overlying strata to form igneous rock b. any igneous rock formed in this way 2. Property law an unlawful entry onto land by a stranger after determination of a particular estate of freehold and before the remainderman or reversioner has made entry intrusion [in′trü·zhən] (geology) The process of emplacement of magma in preexisting rock. Also known as injection; invasion; irruption. A large-scale sedimentary injection. Also known as sedimentary intrusion. Any rock mass formed by an intrusive process. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Obviously, high heat flow was associated with this crustal thinning and igneous intrusion. nbsp;formation and an igneous intrusion is located nearby. The igneous intrusion has been extensively fractured and altered allowing the ingress of mineral bearing thermal fluids that have deposited a complex stock-work of quartz veins. |
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