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Nummulitic limestones of Lower Tertiary age, in the Panjab, in the North West Frontier Province, and in the Jammu division of Kashmir. The largest output has been obtained from the Salt Range, where mines have been opened up on behalf of the North Western Railway. The mines at Dandot in the Jhelam district have considerable fluctuations in output, which, however, for many years ranged near 50,000 tons. These mines, having been worked at a financial loss, were finally abandoned by the Railway Company in 1911, but a certain amount of work is still being continued by local contractors. At Bhaganwala, 19 miles further east, in the adjoining district of Shahpur, coal was also worked for many years for the North Western State Railway, but the maximum output in any one year never exceeded 14,000 tons, and in 1900, owing to the poor quality of material obtained, the collieries were closed down. Recently, small outcrop workings have been developed in the same formation further west on the southern scarp of the Salt Range at Tejuwala in the Shahpur district. ~Gold~ to a small amount is washed from the gravel of the Indus and some other rivers by native workers, and large concessions have been granted for systematic dredging, but these enterprises have not yet reached the commercially paying stage. ~Other Metals.~--Prospecting has been carried on at irregular intervals in Kulu and along the corresponding belt of schistose rocks further west in Kashmir and Chitral. The copper ores occur as sulphides along certain bands in the chloritic and micaceous schists, similar in composition and probably in age to those worked further east in Kumaon, in Nipal, and in Sikkim. In Lahul near the Shigri glacier there is a lode containing ~antimony~ sulphide with ores of ~zinc~ and ~lead~, which would almost certainly be opened up and developed but for the difficulty of access and cost of transport to the only valuable markets. ~Petroleum~ springs occur among the Tertiary formations of the Panjab and Biluchistan, and a few thousand gallons of oil are raised annually. Prospecting operations have been carried on vigorously during the past two or three years, but no large supplies have so far been proved. The principal oil-supplies of Burma and Assam have been obtained from rocks of Miocene age, like those of Persia and the Caspian region, but the most promising "shows" in North West India have been in the older Nummulitic formations, and the
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