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• Placer deposits are formed by the concentration of a particular metal or mineral over a period of time. • The river while flowing through the rocks extract the minerals from there and they are deposited downstream under the influence of gravity. • These deposits are a result of depositions made by water, therefore placer deposits are found in or near subaqueous environments. • They are found in or near water bodies also in the sands of ancient river channels, dried valleys, beaches and coasts. • Generally, the inert metal like Gold and Platinum forms these kinds of deposits. • The reaction resistant ores like magnetite, monazite, zircon and rutile are also found in placer deposits. • The coastal plains of Alaska, India, NewZealand, Indonesia and South Africa are rich in placer deposits.
What is the reason behind cell elongation in internodal regions of plants?
The inflorescence of fennel is which of the following?
Which of the following chemical is used for polyploidy breeding?
Which hormone plays a role in inducing tolerance to abiotic stresses such as salt and drought?
Which method of Vegetable gardening is called as Extensive gardening?
What is the minimum concentration of fruit pulp/ Juice in the ideal squash?
Which of the following system of training of grapes has highcost benefit ratio
Mughal garden is an example of which type of garden?
International Rubber Research and Development Board is situated at ____
Anthracnose in guava is caused by which pathogen?
