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云南腾冲位于印度板块与欧亚板块敛合带上,近代曾发生多期多次火山喷发;现代水热活动强烈,规模宏大,是喜马拉雅地热带唯一的火山地热区。它又处于中欧—南亚—小亚细亚环球 CO_2 排放带,除高温水热区常发生水热爆炸外,该区地气雾现象亦时有发生。2000年10月5日7时半,当人们进入和顺乡乡镇企业办公室院内时,闻到一股刺鼻呛人气味,院内雾气迷漫。经查大门东南4m 处出现一喷气孔,气孔内发出似熬柏油(沥青)时的嘶嘶爆裂声,气水喷出呈沸腾状,孔周围土黑色,间有黄色颗粒(硫磺),冒气强烈,人被气所熏,眼睛流泪,呼吸困难,呛人咳嗽,具 SO_2、SO_3 气味。气体波及范围最大时半径达10m,气体所及,树叶、
Yunnan Tengchong is located on the converging belt between India Plate and Eurasia Plate. There have been many volcanic eruptions in modern times. The modern hydrothermal activity is intense and the scale is huge. It is the only volcanic geothermal zone in the Himalayan geothermal belt. It is also located in the Central Europe - South Asia - Asia Minor Global CO2 emission zone, in addition to high temperature hydrothermal areas often occur hydrothermal explosion, the area of aerosol phenomenon also occur. At half past seven on October 5, 2000, when people entered the homes of township and village enterprises in Heshun Township, they could smell an irritating smell and the hospital was foggy. 4m at the southeast gate of the checkpoint, an air blow hole appeared in the stomata, a sizzling sound like boil asphalt (bitumen) was emitted in the air hole. The gas-water jet was boiling, the soil around the hole was black with yellow particles (sulfur) Strong, people are gas by the smoke, eyes cry, breathing difficulties, choking cough, with SO_2, SO_3 smell. When the gas reaches the scope of the largest radius of 10m, the gas and leaves,