| 词条 | Wansunt Pit |
| 释义 |
|image=Wansunt Pit.JPG |image_caption= |name= Wansunt Pit |aos= Greater London Kent |interest= Geological |gridref={{gbmappingsmall| TQ514736}} {{gbmappingsmall| TQ515738 }} |area= 1.9 hectares |notifydate=1990 |map=Magic Map }}Wansunt Pit is a 1.9 hectare geological Site of Special Scientific Interest in Dartford Heath between Crayford in the London Borough of Bexley and Dartford in Kent. It is also a Geological Conservation Review site. It is important geologically because it exposes the Dartford Heath Gravel, and the relationship of this exposure to the Swanscombe sequence and the Thames Terraces is a controversial issue in Thames Pleistocene studies.[1][2] The site is part of Braeburn Park,[3] a nature reserve managed by the London Wildlife Trust.[4] ArchaeologyThe site is also important archaeologically. Excavations going back over a hundred years have revealed stone tools of Homo Heidelbergensis, dating from Marine Isotopic Stage 11, equivalent to the geological Hoxnian Stage, an interglacial period between 424,000 and 374,000 years ago.[5] Other finds include sixteen Bronze Age axes and seventeen Iron Age gold armlets.[6] The siteThe site is divided into two units. The first is crossed by Galloway Drive and the second, which is inaccessible, is north west of Denton Road. Both are in an unfavourable condition.[7][8][9] See also
References1. ^Natural England, Wansunt Pit SSSI citation 2. ^{{cite web | url=http://jncc.defra.gov.uk/default.aspx?page=4174&gcr=846 | title=Wansunt Pit, Dartford Heath (Quaternary of the Thames) | publisher=Joint Nature Conservation Committee | accessdate=16 January 2016}} 3. ^{{cite web|url=http://www.bexley.gov.uk/CHttpHandler.ashx?id=13119&p=0|title=SINC Review|author=London Wildlife Trust|publisher=London Borough of Bexley|page=116|accessdate=18 January 2016}} 4. ^{{cite web|url=http://www.wildlondon.org.uk/reserves/braeburn-park |title=Braeburn Park |publisher=London Wildlife Trust|accessdate= 16 January 2016}} 5. ^Juby, Caroline (2011) London before London: Reconstructing a Palaeolithic Landscape, Royal Holloway, University of London, Department of Geography, p. 94 6. ^Dartford Town Archive, Prehistoric Industry 7. ^{{cite web|url=http://magic.defra.gov.uk/MagicMap.aspx?startTopic=Designations&activelayer=sssiIndex&query=HYPERLINK%3D%271003328%27|publisher= Natural England|title= Map of Wansunt Pit SSSI}} 8. ^Natural England, Wansunt Pit Unit 1 9. ^Natural England, Wansunt Pit Unit 2 Further reading
5 : Sites of Special Scientific Interest in London|Sites of Special Scientific Interest in Kent|Geology of London|Geology of Kent|Geological Conservation Review sites |
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