It is surrounded by a circular depression and an outer ridge of diameter 20 km. Lake Bosumtwi can be used to argue that the drought over sub-Saharan Africa and the Sahel during the late 1970s originated from that of natural variability forced by a multi decadal oscillation in the thermohaline circulation, which in turn modulates sea surface temperature in the north Atlantic. The Bosumtwi impact crater is centered at 06 32'N and 01 25'W, and is almost completely filled by a lake. Lake Bosumtwi (also spelled Bosomtwe), situated within an ancient meteorite impact crater, is approximately 8 kilometres (5.0 mi) across and the only natural lake in Ashanti and Ghana. Polymict breccias averaging at least 20 m thick with clasts as much as 5 m long occur on the outer ridge, and the crater rim shows in situ shattered rock. The lake is surrounded by about 30 small villages which makes a population of about 70, 000 people. Oral tradition has it that the lake was formed in 1648 when a hunter pursuing and antelope shot and injured the antelope “Otwe” – in the Twi dialect. Culture A deeper look into the different cultures of the African continent, its food, people, music, art, language and more. The lake is a popular resort area with local people for swimming, fishing and boat trips. Lake Bosumtwi is a natural inland freshwater lake that originated due to a meteoritic impact. Lake Bosumtwi (also spelled Bosomtwe), situated within an ancient meteorite impact crater. It is located about 30 km from Kumasi - the second largest city of Ghana. Lake Bosumtwi is the only fresh water body and natural lake in Ghana. Lake Bosumtwi also sometimes spelled Bosomtwe, is a lake formed by an ancient meteorite strike in the Ashanti Region. Lake Bosumtwi is one of the most widely studied palaeoclimate archives in West Africa. It is situated about 30 km south-east of Kumasi the capital of Ashanti and is a popular recreational area. The lowstands of Lake Bosumtwi evidenced from the seismic and sediment core data are interpreted as a response to increased aridity in this part of the equatorial tropics and may correlate to other observed continent-wide shifts in African climate over the past 100 ka, and possibly to rapid climatic shifts observed at high latitudes. The 1-m.y.-old Bosumtwi Crater, Ghana, has a nearly circular shape with a rim diameter of 11 km north-south and 10 km east-west. Lake Bosumtwi has been known to the scientific community since the beginning of the 20th century, but its origin was the subject of a controversy until the 1960, when petrological and isotope geochemical studies on tektites and impact glasses showed evidence for meteorite impact. DCIM100MEDIADJI_0225.JPG. According to Tripadvisor travellers, these are the best ways to experience Lake Bosumtwi: Kumasi Lake Bosomtwe Boat Cruisely & Green Range Horse Riding (From US$150.00) 2 Days Lake Bosomtwi & Cape Coast Tour (From US$605.13) 8-Day Guided Safari of Ghana from Accra (From US$4,644.06) 2days kumasi City Tours (From US$180.00) Lake Bosumtwi is the largest natural lake in Ghana and lies within a crater formed by a meteorite impact. The lakeside village of Amakom has a small hospital with a doctor residing on premise, called Lake Bosumtwi Methodist Clinic, providing emergency services by boat and 4x4 ambulance. It is located in the Ashanti Region, about 30 kilometers south east from Kumasi, the Capital town of the Ashanti Region. Results from numerous AMS 14 C dates of samples from four piston cores from Lake Bosumtwi show that an abrupt sedimentary transition from a mid-Holocene sapropel to calcareous laminated muds occurred at about 3200 cal yr B.P. 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