Collaborative Research: Spatial and Temporal Growth of Upper Crustal Intrusions, Henry Mountains, Utah

合作研究：上地壳侵入的时空增长，亨利山，犹他州

• 批准号: 1220340
• 负责人: Sven Morgan
• 金额: $ 8.29万
• 依托单位: Central Michigan University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-08-15 至 2015-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1220340&HistoricalAwards=false
• 关键词: Collaborative; Research; Spatial; Temporal; Growth

The goal of this project is to take advantage of the exceptional exposures of shallow crustal igneous intrusions in the Henry Mountains of southern Utah to study in detail the spatial and temporal growth of plutons constructed from multiple magma pulses. Because the intrusions were emplaced during a tectonic lull, they are largely free of complicating tectonic structures and specific variables related to magma emplacement can be evaluated, some that is difficult to in many other geologic settings. Each of the five separate intrusive centers in the Henry Mountains preserves a different stage of the evolution of a shallowly constructed igneous system, ranging from a small-total-volume body comprised mostly of dikes to a fully mature body comprised of dozens of relatively large intrusions. This project is focusing on detailed studies of three of these intrusive centers: one each at an early, moderate, and advanced stage of development. Using data field, geochemical, geochronogical, and paleomagnetic data from these intrusive centers, a general construction model for a shallow igneous complex is being constructed. Synthesis of the data and construction of models for data emplacement are being facilitated by the integration of data into geographic information system. Ultimately, a series of fully 3-D models for each intrusive center will be created using constraints from the collected data to study growth of the composite intrusions in space and time. This research will advance our understanding of how igneous intrusions grow in the shallow crust. These intrusions are important for many reasons, including that they feed volcanic eruptions, they serve as heat reservoirs for geothermal fields, and that fluids associated with the intrusions are an important souce of economic mineral deposits. This project is specifically designed to further our knowledge of: (1) the geometries of the plumbing system in shallow igneous systems, (2) how these systems evolve as magma pulses intrude sequentially, (3) magma intrusion rates and their variability in space and time, and (4) the manifestation of magma pulses at different spatial and temporal scales structurally, geochemically, etc. The project is a collaborative effort between researchers at Eastern Carolina University, SUNY College at Geneseo, and Central Michigan University. In addition to the scientific goals of the project, the research is providing for the training of graduate and undergraduate students in STEM disciplines at all three institutions and results of the study will be used for the development of resources for teaching, research, and outreach.

该项目的目的是利用犹他州亨利山脉浅层火成岩侵入的特殊暴露，以详细研究由多种岩浆豆类构成的岩石的空间和时间生长。由于在构造过程中分配了入侵，因此可以评估它们在很大程度上没有复杂的构造结构，并且可以评估与岩浆再植物相关的特定变量，在许多其他地质环境中，这很难。亨利山脉中的五个独立侵入性中心中的每个中心都保留了一个浅层构造的火成岩系统演化的不同阶段，从大部分的小体积体内的堤坝到一个完全成熟的身体，包括数十个相对较大的侵入。 该项目重点介绍了其中三个侵入性中心的详细研究：一个在早期，中等和高级的发展阶段分别。 使用这些侵入性中心的数据字段，地球化学，地球文量和古磁数据，正在构建一种浅层火成岩复合物的一般建筑模型。通过将数据集成到地理信息系统中的数据促进了数据和数据构建模型的综合。最终，将使用收集到的数据的约束来创建一个针对每个侵入性中心的一系列完全3-D模型，以研究时空中复合侵入的增长。这项研究将促进我们对火成岩如何在浅层地壳中生长的理解。 这些侵入物的重要原因很重要，包括它们为火山喷发，它们充当地热场的热储存库，并且与入侵相关的液体是经济矿物质沉积物的重要souce。 该项目的专门设计旨在进一步了解我们：（1）浅的火成岩系统中管道系统的几何形状，（2）随着岩浆的脉冲脉冲的脉冲脉冲，（3）岩浆入侵率及其在空间和时间上的变异性，以及（4）在不同的空间和时间范围内的岩浆脉动之间的岩浆脉动，岩浆入侵率及其在岩浆脉动之间的变化。东部卡罗来纳大学，Geneseo的SUNY学院和中央密歇根大学。 除了该项目的科学目标外，该研究还提供了在所有三个机构中培训STEM学科的研究生和本科生的培训，研究结果将用于开发教学，研究和外展资源。