Water that seeps out of the top of the tank is particularly ominous. If you fear a leak as soon as you begin to use your new gas heater, donât panic. The first time a gas heater starts up, it will produce condensation. That is the reason for the dripping sound, and perhaps a tiny puddle.
Rift valleys can be very deep, and both such valleys known to exist in continental areas on Earth, the East African Rift and the Siberian Baikal Rift, have large, deep lakes in them. As the walls of a rift valley are pulled apart, the floor of the valley tends to sink. If this subsidence happens faster than erosion from the walls can fill it in with sediment, the floor of the valley continues to fall relative to the surrounding terrain.
Great Rift Valley. Great Rift Valley, geological fault system of SW Asia and E Africa. It extends c.3,000 mi (4,830 km) from N Syria to central Mozambique. The northernmost extension runs S through Syria and Lebanon, the Jordan valley, the Dead Sea, and the Gulf of Aqaba.ake Victoria does not lie in the Great Rift Valley but between its main and western branches. The Great Rift Valley ranges in elevation from c.1,300 ft (395 m) below sea level (the Dead Sea) to c.6,000 ft (1,830 m) above sea level in S Kenya.