IRES: From the Roots to the Roof - the Anatomy of the Volcanic-Magmatic-Plutonic System

IRES：从根部到屋顶——火山-岩浆-深成系统的解剖

• 批准号: 1658085
• 负责人: Michael Petronis
• 金额: $ 24.91万
• 依托单位: New Mexico Highlands University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-04-15 至 2023-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1658085&HistoricalAwards=false
• 关键词: IRES; Roots; Roof; Anatomy; Volcanic

The near-surface roof of volcanic systems is often considered geologically simple. Lava erupts from depth and flows out at the surface. This project examines whether the evolution of the system is more complex, with multiple injections of molten rock over time transported vertically and laterally toward and away from the central vent of the volcano. Documentation of these patterns could indicate that this more complex model may be the norm, leading to a transformative discovery of the most abundant volcanic constructs on Earth. The project will also study whether primary features of the roots of volcanic systems are often preserved, providing a mechanism to track the growth of the deeper parts of the volcanic system. At least 15 students from New Mexico Highlands University - a Hispanic Serving Institution - and other participating universities - also Hispanic Serving Institutions - will study volcanic systems in the Czech Republic to achieve the project goal of fully characterizing the anatomy of volcanoes from the deep roots to the near-surface roof. Geology graduate and undergraduate students will expand their research skills by working collaboratively with an international team of geologists. A small team of media arts students from underrepresented backgrounds will document the project to share the overall experience of international research with a broad audience through public outreach programs. Through this 3-year project, undergraduate and graduate students will use a unique multidisciplinary approach to geologic investigation that involves field- and laboratory-based research to better understand and challenge long-standing volcano growth models. While building their research experience, the students will advance understanding of volcano anatomy. In the Jièín Volcanic Field in the Central Bohemian Paradise (Èeský ráj), Czech Republic, natural erosion and quarrying activities from medieval times through today have unearthed many volcanoes to expose levels between 100 m to 4 km below the original surface of the volcano. Teamed with mentors from the Czech Republic, France, and Poland students will interpret the magma flow pattern, as well as the physical process of dike intrusion, cryptodome formation, and magma breakout at the surface. In terms of the roots of the system, students will focus on well-exposed, deeply eroded volcanic-plutonic systems near Prague and in the northeast Czech Republic. The project team will use methods such as: 1) primary field observations, structural measurements, sample collection for petrology, economic ore genesis, paleomagnetic, and anisotropy of magnetic susceptibility analysis; and 2) geophysical surveys to map the subsurface structure. Team experts contribute skills sets including physical volcanology, volcanostratigraphy, geochemistry, exploration geophysics, magma emplacement mechanics, structural geology, and economic ore mineralization. Collectively, these analytical tools will be used to evaluate the volcanic system in the field and a laboratory setting. Engaging the skills of underrepresented media arts students in documenting the learning and research process will contribute to building the next generation of media arts and geology students, instilling in them a sense of global competency.This project is co-funded by the Directorate for Geosciences, Division of Earth Sciences.

火山系统的近地表顶部通常被认为在地质上很简单，熔岩从深处喷发并从地表流出，该项目研究了该系统的演化是否更复杂，随着时间的推移，熔岩会多次注入垂直和横向。这些模式的记录可能表明，这种更复杂的模型可能是常态，从而导致地球上最丰富的火山构造的革命性发现。火山系统根部的主要特征通常被保留下来，从而提供了一种追踪火山系统深层部分生长的机制。至少有 15 名来自新墨西哥高地大学（西班牙裔服务机构）和其他参与大学（也是西班牙裔）的学生。服务机构 - 将研究捷克共和国的火山系统，以实现全面描述火山从深层到近地表屋顶的解剖结构的项目目标，地质学研究生和本科生将通过与火山研究所合作来扩展他们的研究技能。由来自代表性不足的背景的媒体艺术学生组成的小团队将记录该项目，通过公共推广项目与广大受众分享国际研究的整体经验。独特的多学科地质调查方法，包括基于现场和实验室的研究，以更好地理解和挑战长期存在的火山生长模型，在积累研究经验的同时，学生们将加深对吉恩火山领域火山解剖学的了解。中央波西米亚天堂在捷克共和国 (Èeský ráj) 的指导下，从中世纪到今天的自然侵蚀和采石活动已发掘出许多火山，暴露出火山原始表面以下 100 m 至 4 km 的深度。波兰学生将解释岩浆流动模式，以及岩脉侵入、隐穹形成和地表岩浆爆发的物理过程。学生将解释系统的根源。该项目团队将重点关注布拉格附近和捷克共和国东北部暴露良好、遭受深度侵蚀的火山-深成系统，该项目团队将使用以下方法：1）初级实地观测、结构测量、岩石学样本收集、经济矿石成因、古地磁、磁化率各向异性分析；2) 绘制地下结构的地球物理调查 团队专家提供包括物理火山学、火山地层学、地球化学、勘探在内的技能。地球物理学、岩浆侵位力学、构造地质学和经济矿石成矿作用，这些分析工具将用于评估现场和实验室环境中的火山系统，让代表性不足的媒体艺术学生记录学习和研究过程。将有助于培养下一代媒体艺术和地质学学生，向他们灌输全球能力意识。该项目由地球科学局地球科学部共同资助。