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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 ...
The River Brent is a river in west and northwest London, England, and a tributary of the River Thames. 17.9 miles (28.8 km) in length, it rises in the Borough of Barnet and flows in a generally south-west direction before joining the Tideway stretch of the Thames at Brentford.
Prehistoric Norfolk. The prehistory of the County of Norfolk, England is broken into specific time periods, these being Palaeolithic, Mesolithic and Neolithic . Norfolk has a very rich prehistoric past, from the Palaeolithic era 950,000 years ago, to end of the Iron Age 2000 years ago. Indeed, Norfolk has the earliest evidence of human ...
Dark grey clays and light grey shelly clays overlay the yellow-brown weathering sands of the Upnor Formation. 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 ...
0.60 m 3 /s (21 cu ft/s)14 September 1990. • maximum. 53.1 m 3 /s (1,880 cu ft/s)4 February 1990. The River Thame / ˈteɪm / is a river in Southern England. A tributary of the River Thames, the river runs generally south-westward for about 40 mi (64 km) from its source above the Buckinghamshire town of Aylesbury to the Thames in south-east ...
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.
List of crossings of the River Thames. London Bridge, in central London. Newbridge, in rural Oxfordshire. The River Thames is the second-longest river in the United Kingdom, passes through the capital city, and has many crossings. Counting every channel – such as by its islands linked to only one bank – it is crossed by over 300 bridges.