Shield volcano are cave-like volcanic straights formed by the hardening of overlaying lava. These structures help further the propagation of lava, as the walls of the tube insulates the lava within. Lava tubes can account for a large portion of shield volcano activity; for example, an estimated 58% of the lava forming Kīlauea comes from lava tubes. In some shield volcano eruptions, basaltic lava pours out of a long fissure instead of a central vent, and shrouds the countryside with a long band of volcanic material in the form of a broad plateau. Plateaus of this type exist in Iceland, Washington, Oregon,
Legend of the Liquid Sword (album) on heavy rotation on hip-hop stations right now." Though many opinions varied on whether the album was the classic "Wu-Tang sound", Ari Levenfeld of PopMatters feels: "If Legend of the Liquid Sword is any indication of the Wu-Tang Clan's efforts to come, it doesn't seem like the group is all that interested in expanding their fan base or growing musically. Maybe they've done what they set out to do. The franchise is working... GZA isn't trying to be something or someone he's not. He's all about the original recipe." Legend of the Liquid Sword (album) Legend of the Liquid Sword