Uttarkashi District Research Articles

A Study of Inverted Metamorphism in the Higher Himalayan Yamuna Valley, Uttarkashi District, Uttar Pradesh

Abstract The distinctive feature of the Higher Himalaya of Yamuna Valley is that with in the hanging wall greenschist metapellitic nappe, quartzite and marble of footwall are exposed both with inverted disposition of isograds in the eyelid windows. These Barrovian type syn- to post-tectonic events of metamorphism are recorded in the rocks. Chlorite to garnet zone paragenesis in metapelitic rocks and chlorite-biotite zone paragenesis in quartzite and marble are developed by stronger earlier event of metamorphism (M1). The second event of metamorphism (M2) is mild, followed by another feeble retrogressive event (M3). While inversion of isograds in metapelites is attributed to hot slab thrust over the cold, in quartzite and marble, evidences suggest additional role of shear heating and contact effect by a sub-surface cooling igneous body.

Observations on the Ethnobotany of the Tons Valley Region in the Uttarkashi District of the Northwest Himalaya, India

Since time immemorial plants containing beneficial and medicinal properties have been known and used in some form or other, even by primitive peoples. Today there are thousand-year-old traditions and records of popular healing methods that have maintained their importance despite new developments and progress in the fields of chemistry, pharmaceuticals, and medicine. Indeed, interest in herbal drugs is increasing. Ethnobotany is a multidisciplinary science that deals with a direct relationship between man and plants. Ethnobotanical studies have led to the introduction of new or less-known

Collection of Plants around Agora-Dodital in Uttarkashi District of Uttar Pradesh, with Medicinal Values and Folk-lore Claims

AbstractThe Agora and Dodi Tal areas about 16 and 32 km respectively distant from Uttarkashi town are little known pockets for herbal wealth in Garhwal Himalayas. The only route to the places bifurcates to the left of Gangori at a place about 4 km from Uttarkashi town enroute to the holy shrine of Gangotri. The entire route right from Gangori up to Dodi Tal is trekked on foot. Nowadays a motorable road is under construction.

Evaluation of the geological setting and its contribution in planning and construction of Maneri-Bhali tunnel, India

A 8.55 km long tunnel is under construction for the Maneri-Bhali Hydro-Project, Stage I to utilise the waters of the Bhagirathi river for 93 MW of power generation in the Uttarkashi district of India. The entire area lies in geologically complex Himalayan terrain. The adverse geology with complex structures has posed the problem of choice of tunnel alignment. The surface geological features coupled with subsurface explorations and geophysical survey have been utilised to portray and predict geotechnical problems at the tunnel grade. Geotechnical investigations have helped in selecting the lest problematic alignment. The presence of a water-saturated synclinal structure which the tunnel will negotiate and other tectonic features which may require special tunnelling techniques and/or treatment are predicted during the planning stage geological investigation. The geotechnical aspects, which favoured the final alignment and possible tunnelling hazards have been elucidated in this paper.

Haemaphysalis (Herpetobia) sundrai Sharif (Ixodoidea: Ixodidae), a Tick Parasitizing Sheep in the Western Himalayas, Redescription of Female, Description of Male, and Ecological Observations

The female of Haemaphysalis (Herpetobia) sundrai Sharif, 1928, was inadequately described and sketched. Adults of this species have now been found on domestic sheep near the type locality in the Himalayas of Uttar Pradesh, India. The male is described and the female is redescribed. Adults are compared with those of H. sulcata Canestrini and Fanzago, H. kashmirensis Hoogstraal and Varma, and H. nepalensis Hoogstraal. The collection localities, 3,400 and 6,000 ft altitude, are in a temperate area with monsoon rains averaging 60 to 65 inches annually and surrounded chiefly by pine or scrub forest with oak forest in ravines and recently by extensive fruit orchards. Haemaphysalis (Herpetobia) sundrai Sharif (1928) was inadequately described and sketched from three syntype females from Bhowali, 6,000 ft altitude, Naini Tal District, Uttar Pradesh, India. Until recently, no other samples of this taxon have been found and relatively few structural details could be included in an earlier redescription of the single syntype specimen remaining in the Indian Museum (Hoogstraal and Varma, 1962). We are now fortunate to have obtained two males and females of this species from Uttarkashi, 3,400 ft altitude, Uttarkashi District, Uttar Pradesh, and describe the male and redescribe the female. Haemaphysalis (Herpetobia) sundrai Sharif, 1928 Sundra's Indian mountain haemaphysalid