tag:blogger.com,1999:blog-5859094080858570248.post1178718352891308382..comments2024-03-28T13:00:43.523+05:30Comments on Rapid Uplift: Remotely India # 3: Left Lateral Yamuna FaultSuvrat Kherhttp://www.blogger.com/profile/18281172632784780810noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-5859094080858570248.post-13560286465634532712011-02-20T17:19:45.781+05:302011-02-20T17:19:45.781+05:30Yes, the fault has a fairly long history of moveme...Yes, the fault has a fairly long history of movement probably on the order of a few hundred thousand years ..although earthquakes and movements would be episodic<br /><br />regarding the course of the Yamuna, the Siwaliks and post Siwalik sediments were deposited as alluvial fans by smaller streams dumping their sediment ahead of the rising Himalayas. there is no sedimentological signature of a large axial river (paleo Yamuna) with a flow to the east south east towards Haridwar in this region around Dehra Dun at least in the last several million years or so<br /><br />Some people have proposed that the Yamuna flowed towards the Ghaggar (what is called as ancient Saraswati) and only recently turned eastwards around 4 thousand years ago. <br /><br />Regarding the Sutlej, there too the Himalayan frontal thrust makes a bend accommodated by a lateral fault. Again there is a proposal that the Sutlej flowed towards the Ghaggar and turned westward recently. <br /><br />Although these scenarios are possible, I have not come across convincing geological evidence for them.Suvrat Kherhttps://www.blogger.com/profile/18281172632784780810noreply@blogger.comtag:blogger.com,1999:blog-5859094080858570248.post-46538131590506222482011-02-20T11:11:50.170+05:302011-02-20T11:11:50.170+05:30Does this mean that the Yamuna fault is a conseque...Does this mean that the Yamuna fault is a consequence of gradual process rather than a sudden event.<br />Also that in remote history it may have flowed across Dehradun to join Ganga at Haridwar itself.<br /><br />How do the thrust fault for Satlaj and Beas fare ?Khalil Sawanthttps://www.blogger.com/profile/06525256825696217687noreply@blogger.com