In 934 AD, the Eldgja eldgjÃ¡ basaltic eruption In iceland produced nearly 20 cubic km of, lava from a-30 km long. Fissure The eldgja eldgjÃ¡ eruption is the largest (flood basalt basaltic) flood eruption in, historic times covering an area of approximately. 800. sq km
A young woman deadlifting in a gym. Photo Credit AmmentorpDK/iStock/Getty Images. The deadlift is a strength exercise that works several muscle groups, including your back, glutes and legs. It is one of only a handful of exercises that target muscles in the upper and lower body.
When it's done right, the deadlift is an excellent back exercise. As you pick up and put down the weight, your upper-back musclesâincluding your rhomboids, traps, erector spinae, rear deltoids, and latsâmust fire on all cylinders to keep your torso straight and your lower back from rounding. It's when you fail to engage these muscles that injuries can occur.