There are numerous occurrences of
basemetals throughout the 3200 km length of the
The Pithoragarh district of Uttarakhand is notable for its spectacular, glaciated scenery, dominated by deep gorges and summits, many of them above 6000 m. The mountainous terrain of the district consists of a thrust bound sector. The Vaikrita thrust separating the high grade metamorphics of the Central Crystallines from the Tethyan sedimentary sequences in the north runs parallel to the Indo-Tibetan border in the north, while the North Almora Thrust marking the plane of juxtaposition between the overlying older Almora Crystallines and the underlying younger Rameshwar Formation of the Garhwal Group marks the southern extent of the district. In the northern part, at least 40 percent of the total area of 7199 sq km constituting the district is under permanent ice cover.
This project documented, in general,
the mode of occurrence, extent, lithologic, stratigraphic and structural control
of known mineralization areas in the district and, in particular, investigated
those at Rain Agar and Askot. It also investigated the prominent wallrock
alteration associated with the Askot Mineralization in terms of the alteration
mineral assemblages and spectral signatures thereof. The project also
investigated the extent to which geological lineaments in the region influenced
geomorphic evolution and metallogeny.
The results shed new light on the role of geological structure in establishing the basic framework of the eastern part of Kumaon Lesser Himalaya. Linear metallotects resulted from hydrothermal fluids as they passed through fracture systems. Zones of altered wallrock are found to be aligned with major landforms, as also lineaments identified through processing of multispectral satellite data.
The project has transformed existing geological datasets into computer compatible formats, and generated new datasets, all of which have been organized in a Geographic Information System and made available in the public domain through this website. Some datasets have been used to build computer-generated surface models to aid visualization and interpretation of the geology, structure and landscape of the eastern Kumaon region. It is envisaged that these datasets will provide the basis for future, novel interpretative methods that can be used widely to model the nature of metallogeny in the region and identify areas of potential mineralization.
This website is hosted by
Department of Geology
Aligarh Muslim University, Aligarh - 202 002 (India)