| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Igneous rocks | Aerospace | These rocks are formed from the solidification of magma and tends to contain magnetite. As temperature of lava drops below the Curie point (600 degrees Celsius), the magnetite particles orient along earth's magnetic field. As rock solidifies, and its particles are not reoriented by further changes in the earth's magnetic field. (references) | |
| Igneous rocks | Geography | Rock masses formed by the solidification of magma injected into the earth's surface, or extruded on its surface; Said of a rock that solidified from molten or partly molten material i. e. from magma. " igneous" rocks constitute one of the three main classes into which all rocks are divided: igneous, metamorphic, sedimentary. (cf. no 5157 et no 5158; cf. no 5153). Source: European Union. (references) | |
| Igneous rocks | Geological | Igneous rocks are formed from melted rock that has cooled and solidified. When rocks are buried deep within the Earth, they melt because of the high pressure and temperature; the molten rock (called magma) can then flow upward or even be erupted from a volcano onto the Earth's surface. When magma cools slowly, usually at depths of thousands of feet, crystals grow from the molten liquid, and a coarse-grained rock forms. When magma cools rapidly, usually at or near the Earth's surface, the crystals are extremely small, and a fine-grained rock results. A wide variety of rocks are formed by different cooling rates and different chemical compositions of the original magma. Obsidian (volcanic glass), granite, basalt, and andesite porphyry are four of the many types of igneous rock. (Barker, 1997). (references) | |
| Igneous rocks | Literature | Those which have been produced by the agency of fire, as the granitic, the trappean, and the volcanic. (Latin, ignis, fire.). Source: Brewer's Dictionary. | |
| Igneous rocks | Water | Rocks that have solidified from molten or partly molten material. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
Topics by Level of Interest: IGNEOUS ROCKS | ||||
| Topics sorted by level of Interest | Level (1=low, 600=high) | Topics sorted Alphabetically | Level (1=low, 600=high) | |
| Ultrapotassic igneous rocks | 5 | Ultrapotassic igneous rocks | 5 | |
Source: the editor, created by/for EVE to gauge likely levels of human interest in linguistically triggered topics (compiled across various sources, such as Wikipedia and specialty expression glosses). | ||||
