Central America Volcanoes: Cerro Negro, Ilopango, Irazu, Telica, and Turrialba

Short write-ups and KML files of five volcanoes from the RU_CAGeoChem (Rutgers University Central America Geochemistry) database. The write-ups are general descriptions, aimed at the undergraduate level. They are background material for a MARGINS mini-lesson being created by Bob Stern and others. The KML files, when opened in Google Earth, show the sample locations. The volcanoes were selected to cover a range of compositions from basalt at Cerro Negro and Irazu, to rhyodacite at Ilopango. There is also a very large volcano, Irazu, a very small one, Cerro Negro, an intermediate size one, Telica, and a caldera, IIlopango. Turrialba has returned to activity after a long quiescence and so the Rutgers sample locations were placed in a kml file as well as a short description.

本数据集包含来自RU_CAGeoChem（美国罗格斯大学中美洲地球化学数据库）的五座火山的简要说明文档与KML（Keyhole Markup Language）文件。上述说明文档为通用性质的介绍材料，面向本科阶段学习者，是Bob Stern等人正在开发的MARGINS微型课程的配套背景资料。KML文件可在谷歌地球（Google Earth）中打开，用于展示采样点位的空间分布。本次选取的火山涵盖了多样的岩石组分：从塞罗内格罗（Cerro Negro）与伊拉苏（Irazu）火山的玄武岩，到伊洛潘戈（Ilopango）火山的英安流纹岩。其中既有体量庞大的伊拉苏火山，也有规模极小的塞罗内格罗火山，还有中等体量的特利卡（Telica）火山，以及作为破火山口的伊洛潘戈火山。图里亚尔瓦（Turrialba）火山在长期休眠后恢复活动，因此罗格斯大学针对其布设的采样点位被录入KML文件，并附带相应的简要说明。