Significant Triassic clastic deposits with gypsum beds and volcanic clastics have been found between Xainza and Coqên. Early Devonian (Pragian-Emsian) rocks in Xainza County are said to "yield a shallow-marine, carbonate-platform fauna of corals, brachiopods, dacryoconarids, nautiloids and conodonts." Animal husbandry is the chief source of income in the county. Jiagang Hydropower Station was built in the 1990s and as of 2008 serves about 20,000 nomadic households across the county. Gold mining in the county has reportedly affected water quality and some area of grassland. An alluvial gold mine which generated "5 million yuan (US$617,300) of the county's 8.5-million budgetary income" was slated to be shut down in 2005. Other reserves include iron, lead, copper, salt, borax and phosphorus. The county has a reported geothermal resources area of about 100,000 square meters and is rich in fish resources. The county contains the following towns and townships, 8 township-level divisions in total. These in turn are divided into 73 village committees. "The county capital of Shentsa is located at Naktsang (Shentsa), 805 km from Lumaringpo in Gertse county, and 232 km from Palgon. However, due to the vastness of this region, there is a third administrative centre at Tsonyi (Twin Lakes) in the north. Naktsang (Shentsa) to Tsonyi is 442 km."