Shivam Sharma posted an Question
August 31, 2020 • 22:50 pm 30 points
  • CSIR NET
  • Earth Sciences

A river flows from north to south along a v-shaped valley with steep slopes ranging from 60-70. ihe country rocks in the area are metamorphic, with a prominent

A river flows from north to south along a V-shaped valley with steep slopes ranging from 60-70. Ihe country rocks in the area are metamorphic, with a prominent fol1ation striking NIOE and dipping at an angle of 40 towards west. There is a proposal of road alignment. Considering the geological conditions described above, suggest which bank of the river is more suitable for road construction. --- ----- -- ---- ----- -- -------------------------------------------- Ans: *********************************************************************************************************************************** The type of plate boundary associated with deep focus earthquakes is *********** ****************************************************************************************} Ans: *********=***************************************** *** **** ********** ** ******-*********

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    Sajan sarthak best-answer

    trench type plate boundary that is subduction zone shows deep focus Earth quake

  • comment-profile-img>
    Rahul kumar Best Answer

    1. Western bank of river will be suitable for the road construction. East bank will be very prone to landslides (because foliation is dipping towards west). For details refer to the attached block and sectional view. 2. Convergent plate Boundaries (Benioff zone) are associated with deep focus earthquake.

    cropped3552757065855085717.jpg
  • comment-profile-img>
    Sajan sarthak

    The east part of the River bank is highly unstable because bed dips less than river valley so beds can get slipped into valley but West part is stable as both bed and valley dips opposite.

    cropped5251179224007845403.jpg
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