Dating of the vredefort dome

Posted by / 19-Oct-2017 23:59

Dating of the vredefort dome

The presence of shatter cones, impact deformation of basalt layers comprising its rim, shocked breccia inside the crater, and non-volcanic ejecta blanket surrounding the crater are further proof of the impact origin of Lonar crater. The meteorite impact came from the east, at an angle of 35 to 40 degrees. The first European to visit the lake was a British officer, J. The Chalukyas and Rashtrakutas also ruled this area. Some extracts from Mr Plymen's report, given in quotes, are informative.

This greater age is in line with the degree of erosion processes of crater rims. There is a small circular depression at a distance of around 700m from the main lake, believed to be caused by a splinter of the meteor that hit the ground to also make a crater. The modes of formation are also entirely different and it is practically certain that the Lonar salts are derived from an unknown source in the bed of the lake.This lake, which lies in a basalt impact structure, is both saline and alkaline in nature.Geologists, ecologists, archaeologists, naturalists and astronomers have published studies of various aspects of this crater lake ecosystem.Lonar Lake has a mean diameter of 1.2 kilometres (3,900 ft) and is about 137 metres (449 ft) below the crater rim.The meteor crater rim is about 1.8 kilometres (5,900 ft) in diameter.

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