2023年4月23日 · Basalt is a type of volcanic rock that is formed from the solidification of molten lava. It is an igneous rock, meaning it is formed through the cooling and solidification of …

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 …

Basalt is one of the most common and widespread igneous rocks on Earth, making up much of the oceanic crust and significant portions of continental crust. This dark-colored volcanic rock …

2025年1月24日 · Basalt, extrusive igneous (volcanic) rock that is low in silica content, dark in color, and comparatively rich in iron and magnesium. Basalts may be broadly classified on a …

Basalt is a dark-colored, fine-grained, igneous rock composed mainly of plagioclase and pyroxene minerals. It most commonly forms as an extrusive rock, such as a lava flow, but can also form …

Basalt is a fine-grained, dark-colored igneous rock that makes up over 90% of the Earth's volcanic rock and covers vast areas of the ocean floor. It's formed from the rapid cooling of molten lava, …

Basalt is a dark-colored, dense rock composed primarily of plagioclase feldspar and pyroxene. It is the most common rock type found in oceanic crust and is an important component of the …

2023年8月17日 · Basalt rock is fine-grained, dark-colored volcanic rock with essentially Mg-rich plagioclase and augite. It is basic or low in silica (42-52 wt. %) mafic (Mg- and Fe-rich) rock, …

Basalt is an extrusive igneous rock composed primarily of plagioclase feldspar and large amounts of mafic minerals like pyroxene. It has an aphanitic texture, meaning its interlocking crystals …

2024年1月4日 · Basalt is a fine-grained, extrusive igneous rock predominantly formed from the rapid cooling of mafic lava, which is low in silica and rich in magnesium and iron. In geology, …