Environmental Networking Platform for Children and Youth by SAMSUNG E&A
Stay connected with Eco-generation :
| Share 
| 
- Home >
- Our Actions >
- World report
19
Comments
Siwalik |
|---|
|
by Soyam Dhamala | 29-03-2020 19:04
|
|
Mass movement in Siwalik Siwalik is a highland region between the Mahabharat and Chure mountain ranges in Nepal. The region has huge deposits of calcium carbonate. Common types of mass movement in the siwalik are gully erosion, slumping, toppling and rock fall. b. Mud flow when a rapidly moving stream of water mixes with sufficient amount of debris, it forms a pasty mass. The movement of such mass downward the slope is called mudflow. It contains about 50% of sand, slit, and clay sized particles. Many mudflows start after heavy rains in mountain valleys. They have a long, narrows track and spread out on reaching the lower ground. c. toppling A topple is a block of rock that rotates on a hinge and then separates from the main mass falling on the slope. It involves considerable volume of rock. If we weight vector lies outside the base of the block, toppling will occur. the danger of toppling increases slopes as well as discontinuity angle. d. gully erosion it is the removable of soil from rivulets, which are formed due to sufficient accumulation of overland flow on the slope ground. If the turbulence in the flow through the rivulets is strong enough, it may dislodge soil particles from bed and banks leading gully erosion. e. Slumping The frequency of sliding increases considerably in rainy season as the soft rock saturated with the rain water acts like semi-fluid. The rain water penetrates the rocks along the fractures and joints, thus exerting enormous pressure and causes high slumps. Image: Wikipedia, Distribution of the Siwalik sediments |
|
|
|
|
|
Previous : WHAT IS SEISMIC WAVE?
19 Comments
nice report
Posted 18-08-2020 18:39
Nice report.
Posted 31-03-2020 01:15
Hello
I do hope you are all good..
Thank you so much for sharing this report!!
It was great and wonderful..
Keep writing and sharing!!
Green cheers
Regards
Jasmine karki
Posted 30-03-2020 18:00
Thank you Susma.
Posted 30-03-2020 14:54
Great Article
Posted 30-03-2020 13:33
Thank you ramesh.
Posted 29-03-2020 23:42
Thank you Apsara.
Posted 29-03-2020 23:42
Thank you Ganga.
Posted 29-03-2020 23:42
Thank you Rijana.
Posted 29-03-2020 23:42
Thank you for your report, GREEN CHEERS
Posted 29-03-2020 22:51
Nice to know thanks for your report!!
Posted 29-03-2020 22:48
I hope you are doing great!!
Keep on writing!!
GREEN CHEERS!!
Posted 29-03-2020 22:43
Thanks for your report.
Posted 29-03-2020 22:38
Thank you Sonika.
Posted 29-03-2020 21:31
Thank you Rachu.
Posted 29-03-2020 21:31
Hello Soyam!!
I hope you are doing great!!
Keep on writing!!
GREEN CHEERS!!
Regards,
Sonika
Posted 29-03-2020 20:41
Thank you for your report
Posted 29-03-2020 20:09
Thank you Swesha.
Posted 29-03-2020 19:26
Hello Soyam!!
Knowing about different types of mass movement in Siwalik is nice.
Keep writing and shining.
Yours,
Swesha
Posted 29-03-2020 19:25