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The terms lava stone and lava rock are more used by marketers than geologists, who would likely say "volcanic rock" (because lava is a molten liquid and rock is solid). "Lava stone" may describe anything from a friable silicic pumice to solid mafic flow basalt, and is sometimes used to describe rocks that were never lava, but look as if they ...
Rivers of lava spewed from a fissure in the mountainside, snaking downwards and erupting in fountains of red and gold molten rock when the Fagradalsfjall volcano erupted this week in a fishing ...
The lava flows formed the conditions for the creation of Lake Superior agates. As the lava solidified, water vapor and carbon dioxide trapped within the solidified flows formed a vesicular texture (literally millions of small bubbles). Later, groundwater transported ferric iron, silica, and other dissolved minerals passed through the trapped ...
The Petroglyph Point is an archaeological site within the Lava Beds National Monument, located southeast of Tulelake, California. Petroglyph Point contains one of the largest panels of Native American rock art in the United States.
Zuni-Bandera volcanic field (also known as Bandera lava field, Grants Malpais and Malpais volcanic field) is a volcanic field located in the state of New Mexico, United States. [1] The volcanic field has been considered for geothermal exploitation. [2] It is on the Trails of the Ancients Byway, one of the designated New Mexico Scenic Byways. [3]
Basalt (UK: / ˈ b æ s ɒ l t,-ɔː l t,-əl t /; [1] [2] US: / b ə ˈ s ɔː l t, ˈ b eɪ s ɔː l t /) [3] is an aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the surface of a rocky planet or moon.