Magmartic Workshop in the McMurdo Dry Valleys, Antarctica

该奖项由极地项目办公室的南极地质和地球物理项目提供，支持在麦克默多干谷使用费拉超群技术来研究岩浆过程的基本方面的现场研讨会或讲习班。了解行星岩浆作用的最具挑战性的方面是，在任何实际情况下，可以直接检查整个岩浆生命周期的综合性质很少。行星岩浆活动本身是一个综合的、多方面的过程，包括一系列相互交织的化学和物理过程。这些物理过程负责将最初的原始岩浆化学转化为最终演化的喷发产物。每一种重要的物理成分都可以在地球上的某个地方找到，这些成分已经被研究了将近一个世纪。但事实证明，在一个完全整合的真实空间环境中，很难找到和研究整个过程本身的任何合理例子。麦克默多干谷（McM-DV）的费拉白云岩以精美的照片展示了一个形成于地球内部的广泛岩浆系统的详细三维结构和演化发展。大约180年前，美国上层地壳。McM-DV岩浆系统在可控范围内包含了主要岩浆系统的所有基本特征，而在世界其他地方，这些特征通常只能以零碎的方式看到。这个系统是一个独特的和宝贵的实验室，在其中研究第一手的动态行星岩浆活动。由于这个不寻常的区域对大多数研究人员来说是如此的难以接近，所以建议在这里举行一个实地研讨会，向其他研究人员介绍McM-DV场关系的奇迹，刺激前沿研究，并描绘这个岩浆系统所带来的许多基本和未解决的问题。20-25名研究人员将参与为期两周的实地和实验室活动，研究McM-DV岩浆系统的岩浆过程，作为了解岩浆系统基本力学和发展的核心。预计将召开一次工作会议，会议分为在麦克默多克雷实验室进行讨论和实验室工作以及在干谷进行实地考察。四个研究模块将考虑四个岩浆过程：1。东牛山口泥柱岩浆运移与分异东台地池岩浆的晶体输运与分选技能（潘多拉的尖塔/孤独的岩石）的凝固锋不稳定性（SFI）为了在实时和长期的研究中提供尽可能广泛的影响，参与者将分布在五个小组中：1)研究费拉系统其他部分的研究人员；2)全球层状侵入体和玄武岩岩的资深研究人员；3)研究岩浆过程的年轻研究人员；4)洋脊岩浆库与融板研究；5)火成岩岩石学研究生。本科生的参与也是一种可能。将这些工作人员聚集在一起的目的是作为一种催化剂，阐明所有岩浆过程共同的特定基本主题，了解费拉-跨南极岩浆省的区域动态，并通过接触一个独特的，世界级的领域，激发强大的科学家们的创造力的新视野。

This award, provided by the Antarctic Geology and Geophysics Program of the Office of Polar Programs, supports a field seminar or workshop to examine fundamental aspects of magmatic processes using the Ferrar Supergroup sills in the McMurdo Dry Valleys. The most challenging aspect of understanding planetary magmatism is that so little of the integrated nature of the full magmatic life cycle can be directly examined in any realistic context. Planetary magmatism itself is an integrated, multifaceted process involving a spectrum of interleaved chemical and physical processes. These physical processes are responsible for the chemical transformation of the initial primitive magma into the final evolved erupted product. Each essential physical component can be found well exposed somewhere on Earth, and these components have been studied piece by piece for nearly a century. But is has proven singularly elusive to find and study any reasonable example of the entire process itself in a fully integrated true spatial context. The Ferrar dolerites of the McMurdo Dry Valleys (McM-DV) exhibit in exquisite exposures the detailed three-dimensional structure and evolutionary development of an extensive magmatic system, which formed within Earth?s upper crust some 180 m.y. ago. The McM-DV magmatic system contains, on a manageable scale, all the essential features of major magmatic systems, which elsewhere in the world are commonly seen only in a piecemeal fashion. This system is a unique and an invaluable laboratory in which to study first hand the dynamics of planetary magmatism. Because this unusual area is so inaccessible to most researchers, it is proposed to hold a field workshop here to introduce other researchers to the wonders of the McM-DV field relations, to stimulate cutting edge research, and also to delineate the many fundamental and unsolved problems posed by this magmatic system.A two-week field and laboratory event involving 20-25 researchers will be conducted to study the magmatic processes of the McM-DV magmatic system as a centerpiece to understanding the fundamental mechanics and development of magmatic systems in the most general sense. A working conference is envisioned with sessions split between discussions and laboratory work at McMurdo in the Crary Laboratory and fieldwork in the Dry Valleys. Four magmatic processes will be considered by four research modules:1. Magma Transport and Differentiation in a Mush Column (East Bull Pass)2. Crystal Transport and Sorting in Ponded Magma (East Dais)3. Solidification Front Instability (SFI) in Sills (Pandora's Spire/Solitary Rocks)4. Mechanics of Sill Emplacement (Victoria Valley and East Wright Valley)To provide the widest possible impact on research, both in real time and the long term, participants will be spread among five groups: 1) Researchers working on other parts of the Ferrar system; 2) Senior researchers of layered intrusions and basaltic sills worldwide; 3) Young researchers studying magmatic processes; 4) Researchers of ocean ridge magma chambers and melt sheets; 5) Graduate students in igneous petrology. The involvement of undergraduates is also a real possibility.The bringing together of these workers is intended as a catalyst to enunciating a specific fundamental theme common to all magmatic processes, to understanding the regional dynamics of the Ferrar-Transantarctic magmatic province, and to stimulating strong scientists to new horizons of creativity through exposure to a singular, world class field area.