U.S.-Italy Cooperative Research: The Campanian Ignimbrite Eruption and Emplacement

该奖项将支持理查德费舍尔教授的 加州大学圣巴巴拉分校的一项研究 与G教授合作。奥尔西湾卡帕尔迪，以及 L.那不勒斯大学的西维塔。 南欧最大的城市之一那不勒斯， 位于一个年轻的（约33，500年），大 体积（大于80立方千米）熔结凝灰岩 由火山爆发而形成的一片。 这个坎帕尼亚人 火山灰岩（CI），出现在100公里。从其可能的 源，作为一个充满活力的火山碎屑流移动 穿越高山山脊 CI的来源是 据信是在Phlegrean领域，位于 那不勒斯郊区。 研究人员打算（1）建立年表， 最初坎帕尼亚火山爆发的化学趋势， 产生了最初的火山灰和熔结凝灰岩 （2）确定喷发类型 （冻土和/或水碎屑）和随后的 喷发活动;（3）解释流动机制 通过研究薄地层的起源， 发生在CI下方。 详细的现场和实验室 为此，有必要对这种熔结凝灰岩进行研究 揭开它的历史以及这预示着什么 未来的活动。 如果线人来自地下 海，这将是第一个这样的熔结凝灰岩， 记录在案，这将是第一次有可能 表征的物理和化学属性 水下熔结凝灰岩并提供岩石学标准 为了他们的认可。

This award will support Professor Richard Fisher of the University of California at Santa Barbara in a research collaboration with Professors G. Orsi, G. Capaldi, and L. Civetta of the University of Naples. One of southern Europe's great cities, Naples, is located on a young (approximately 33,500 years), large volume (greater than 80 cubic kilometers) ignimbrite sheet resulting from a volcanic eruption. This Campanian Ignimbrite (CI), occurs up to 100 km. from its probable source, having moved as an energetic pyroclastic flow across high mountain ridges. The source of the CI is believed to be in the Phlegrean Fields, located in the Neapolitan suburbs. The researchers intend (1) to establish chronology and chemical trends of the initial Campanian eruption that produced the first-deposited tephra and the ignimbrite sheet; (2) to determine the type of initiating eruption (pryoclastic and/or hydroclastic) and subsequent eruptive activity; and (3) to interpret flow mechanisms by studying the origin of the thin ground layer that occurs beneath the CI. Detailed field and laboratory studies of this ignimbrite are necessary for the purpose of unraveling its history and what that portends for future activity. If the CI originated from beneath the sea, it will be the first such ignimbrite to be documented, and it would be possible for the first time to characterize physical and chemical attributes of subaqueous ignimbrite and provide petrologic criteria for their recognition.