Geochemical Modelling of Magmatic Resurgence at Raboul Caldera, Papua New Guinea by Rn and Hg Detection

这项为期一年的计划将测量土壤中的氡和汞 在巴布亚新几内亚活跃的拉包尔火山口上空， 为了测试在加州的长谷开发的模型， 意大利的Phlegrean Fields。 拉包尔灾难性地爆发了 在过去的3,500年里发生过几次地震 强烈暗示了1983年的一次大喷发 这并没有 但潜力仍然存在，火山仍然是一个 严重威胁。 私家侦探收集的初步数据 在1983年危机之前， 两种气体的浓度都与隆升中心有关 火山口边界断层 探测器将被放置在 火山口的边缘，以及拉包尔港的水下 （火山口内）。 这些应提供基线测量 有必要确定Rn和Hg排放的有用性， 火山喷发 当地火山观测站的工作人员 我也很感兴趣，他们作为一个额外的工具， 他们对这座火山的监控

This year-long program will measure soil gas Rn and Hg at sites over the active silicic Rabaul Caldera in Papua New Guinea, in order to test a model developed at Long Valley, California and the Phlegrean Fields, Italy. Rabaul has erupted catastrophically several times in the last 3,500 years, and seismic evidence strongly suggested a major eruption in 1983. This did not take place but the potential is still there and the volcano remains a serious threat. Preliminary data, collected by the PIs just before the crisis of 1983, indicated that substantial anomalous concentrations of both gases were related to the center of uplift and caldera boundary faults. Detectors will be placed over the margins of the caldera, as well as under water in Rabaul harbor (inside the caldera). These should provide baseline measurements necessary to establish the usefulness of Rn and Hg emissions as eruption precursers. The local volcano observatory personnel are also very interested in them as an additional tool to be used in their efforts to monitor this specific volcano.