Robert Delaunay, 1912â13, Le Premier Disque, 134 cm (52.7 in.), Private collection. Abstract art uses a visual language of shape, form, color and line to create a composition which may exist with a degree of independence from visual references in the world. Western art had been, from the Renaissance up to the middle of the 19th century, underpinned by the logic of perspective and an attempt to reproduce an illusion of visible reality.
The magma here also cools into rock, but at a much slower speed than the lava at the surface. This gives crystals more time to grow, making the larger-grained rock known as gabbro. So thatâs why basalt is at the top of the ocean plate and gabbro is at the bottom. To put it in the form of the worldâs worst poem:
basalt. Basalt and related rock types like andesite and dacite are rocks that form when volcanoes erupt magma (lava) onto the surface of the earth and the magma cools. Basalt flows in Hawaii.Click on image for enlargement.asalts come in a wide variety of textures and colors. Some have vesicles (gas bubbles), some don't. Some are gray, others are reddish or even greenish. Basalt is one of the most common rock types on Earth. Except for the coral, all of the rocks of Hawaii are basalts.