S. Farooq
Department of Geology
Aligarh Muslim University

We collect, compile and communicate information on the geology and earth resources of Uttarakhand

Structural Boundaries

 

Tectonic Units

 

Krol-Berinag Nappe
Ramgarh Nape
Almora Nappe

Autochthonous Zone

Main Boundary Fault

Main Central Thruse

Other Faults

 

The Askot Crystallines

 

The Kumaon Himalaya, lying between the Kali River in the east and Sutlej in the west, include a 320 km stretch of mountainous terrain.  Much pioneer work was done at the turn of the century followed by more modern investigations between 1930 and 1940.

The almost complete absence of fossils in the Lesser Himalaya leaves many structural and stratigraphic problems unsolved, since the correlation is based on stratigraphy alone.  This casts some doubts on certain stratigraphic interpretations.  The Lesser Kumaon Himalaya include a thrust-bound sector delineated by two tectonic planes - the Main Boundary Fault to the south and the Main Central Thrust to the north.  Many workers have postulated existence of the regional inversion of sedimentary pile.  There are two elongate tectonic belts of sedimentary/metasedimentary rocks separated by an ESE-WNW trending Almora-Dudhatoli Crystalline zone.  T he Outer Sedimentary Belt to the south of the crystalline mass is the Krol Belt while the Inner Sedimentary Belt to the north constitutes the Deoban-Tejam zone (Gansser, 1964), or the Jaunsar-Berinag nappe (Valdiya, 1978).

Geological Map of the Kumaon Lesser Himalayas (After Valdiya, 1978).

This is an interactive digital map in Scalable Vector Graphic (SVG) format.  For more information on navigating, click here.

A generalised tectonic sequence for the Lesser Kumaon Himalaya is tabulated below:

vaikrita Group
-------------Vaikrita Thrust-----------
Munsiari Formation
--------------Main Central Thrust------------
Almora Dudhatoli Nappe
and
Askote, Baijnath, Chiplakot and
Satpuli Klippen
----------- Almora Thrust ---------
 Outer Sedimentary Belt
Inner Sedimentary Belt
-------------Main Boundary Fault------------
Siwalik Group

 

 

 

 

Notes & Handouts

The Himalayas

Kumaon Himalayas

Askot Basemetals

University

   


This website is hosted by

S. Farooq

Department of Geology

Aligarh Muslim University, Aligarh - 202 002 (India)

Phone: 91-571-2721150

email: farooq.amu@gmail.com