Recently during a conversation, we were discussing how powerful water is . As an example, we were discussing how River Colorado has carved out Grand Canyon as what it is today. I usually get a little more interested about such things and immediately get to read more details.
When I visited GrandCanyon, I was only 15 days old in US of A and had absolutely no idea about what I was going to experience. When I stood there, it just seemed as though I had gone to a totally different world. But I did not know the trivia or the geological background of it.
So this time after the discussion in office, I started reading (ofcourse started with Wiki) and looked at some of the other examples of canyons in the world. It actually surprised me that Grand Canyon is not really the biggest one in the world, its the Capertree valley in Australia.
But what amazed me out of all my readings is the variety of rock beds and how it has taken billions of years, few volcanoes and the river colarado to get Grand Canyon to what it is today. The most amazing thing is that the oldest rock bed in the layers is about 1.x billion years old and is called Vishnu Schist. Upon further reading, I found out there are Rama and Brahma Schists as well. It is amazing to see the names of indian gods to be associated with something so old. I tried finding out how they got these names for rock beds but to no vail. But just a thought got into my head - might be our Puranas and Vedas and Upanishads are all true.
After some more search , I found this link which has a beautiful picture of Vishnu Schist and also explains how these got the names, check it out Vishnu Schist
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