Volcanic explosion craters such as Dallol form during phreatic eruptions& where rising magma comes into contact with water beneath the surface of the Earth, causing a steam explosion. 像宽干谷这样爆裂的火山口形成于蒸汽喷发的过程中,在那里,上升的岩浆与地表下的水接触形成了蒸汽喷发。
Photo Gallery: Plate Tectonics Sulfur, salt, and other minerals color the crater of Dallol volcano, part of the Danakil Depression in Ethiopia. 意译:板块构造的图片。硫,盐,和其他矿物颜色火山口的火山dallol,部分的danakil盆地在埃塞俄比亚。
Elevations range from 100m below sea level in the Dallol Depression ( Kobar sink) to the number of mountain peaks in excess of 4,000m above sea level. 海拔从达罗尔洼地(Kobar盆地)的海平面以下100米到许多山峰高出海平面4000米不等。