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Ancestral Thames. The Ancestral Thames is the geologically ancient precursor to the present day River Thames. The river has its origins in the emergence of Britain from a Cretaceous sea over 60 million years ago. Parts of the river's course were profoundly modified by the Anglian (or Elsterian) glaciation some 450,000 years ago.
The River Thames (/ tɛmz / ⓘ TEMZ), known alternatively in parts as the River Isis, is a river that flows through southern England including London. At 215 miles (346 km), it is the longest river entirely in England and the second-longest in the United Kingdom, after the River Severn. The river rises at Thames Head in Gloucestershire and ...
Cattle grazing below high water, Isle of Dogs, 1792 (Robert Dodd, detail: National Maritime Museum) The Embanking of the tidal Thames is the historical process by which the lower River Thames, at one time a broad, shallow waterway winding through malarious marshlands, has been transformed by human intervention into a deep, narrow tidal canal flowing between solid artificial walls, and ...
The Happisburgh footprints were a set of fossilized hominid footprints that date to the end of the Early Pleistocene, around 950–850,000 years ago. They were discovered in May 2013 in a newly uncovered sediment layer of the Cromer Forest Bed on a beach at Happisburgh in Norfolk, England, and carefully photographed in 3D before being destroyed ...
Shad Thames. 51°30′09″N 0°04′15″W / 51.5024°N 0.0708°W / 51.5024; -0.0708 (River Neckinger) north Southwark. 0.8 miles (1.3 km) (about; longer old catchment drains to other surface and combined water conduits) mainly diverted to surface and combined sewer drains. Wal River Walbrook or Walbrook.
The chalk basin has been infilled with a sequence of clays and sands of the more recent Paleogene Period, then Neogene Period (1.6 to 66.4 million years old). Most significant is the stiff, grey-blue London Clay , a marine deposit which is well known for the fossils it contains and can be over 150 metres thick beneath the city.
River Fleet. The River Fleet is the largest of London's subterranean rivers, all of which today contain foul water for treatment. It has been used as a culverted sewer since the development of Joseph Bazalgette 's London sewer system in the mid-19th century with the water being treated at Beckton Sewage Treatment Works.
London Clay. Geological map of the London Basin; the London Clay is marked in dark brown. The London Clay Formation is a marine geological formation of Ypresian (early Eocene Epoch, c. 54-50 million years ago) [1] age which crops out in the southeast of England. The London Clay is well known for its fossil content.