Dead Sea hypothesis is that the Dead Sea lies in a true rift zone, an extension of the Red Sea Rift, or even of the Great Rift Valley of eastern Africa. A more recent hypothesis is that the Dead Sea basin is a consequence of a "step-over" discontinuity along the Dead Sea Transform, creating an extension of the crust with consequent subsidence. Around 3.7 million years ago, what is now the valley of the Jordan River, Dead Sea, and the northern Wadi Arabah was repeatedly inundated by waters from the Mediterranean Sea. The waters formed in a narrow, crooked bay that is
River Hertford River Hertford The River Hertford is a river in Yorkshire in the north of England. It is part of the River Derwent catchment area. The River Hertford starts close to Muston near the seaside town of Filey. Despite being only from the North Sea (to its eastern side) the river flows westwards for into the River Derwent at Haybridge. It is sometimes referred to as a 'Backward River' because it flows away from the sea. Ekwall suggests the name derives from a ford over the river, which became the name by back formation. Star Carr, a Mesolithic archaeological site, lies