The Great Plume Debate Chapman Conference

natlanda Chapman会议，“羽流之争”，将于2005年8月在苏格兰的威廉堡举行。关于地幔柱是否存在、深层地幔柱的数量以及其他模型的可行性，目前正在进行一场全球性的辩论。最近的会议要么集中在羽流理论，要么集中在替代方案上，现在是时候召开一次讨论会，把辩论双方的代表聚集在一起。主要目标将是：a)澄清和定义羽流和其他理论、它们的预测以及它们如何被检验；b)将它们相互匹配；确定未来研究的最重要途径，最终可能导致解决争论。会议将在理论、地幔物理和动力学、现场证据、年龄定年、地震学、温度、岩石学和地球化学以及行星方面的会议上，平衡和结构地呈现支持羽流和替代观点。召集人包括两名支持羽流的人，以及两名反对羽流的人。选择在苏格兰的场地是为了促进国际参与，并允许参加实地考察。这些将是对苏格兰赫布里底群岛几个主要的中央火山复合体和侵入中心的考察，这些火山复合体和侵入中心长期以来为现在被称为北大西洋大火成岩省的火成岩构造地质学和岩石成因提供了许多重要的概念。根据目前美元对英镑的汇率，美国与会者参加这次会议的平均费用约为2100美元，其中包括1000美元的机票费用。目前，共有52名美国申请者提交了摘要，其中包括5名学生。其中许多人要求财政援助。这项奖金（2万美元）将为25名参与者，特别是学生和年轻科学家，平均支付800美元的费用。

0540686NatlandA Chapman Conference, "The Great Plume Debate", will be held in Fort William,Scotland in August, 2005. A global debate is now in progress concerning the existenceof mantle plumes, the number of deep mantle plumes, and the viability of alternativemodels. Recent meetings have focused either on plume theory or alternatives, and it isnow timely to hold a discussion meeting that brings together representatives of both sidesof the debate. The primary objectives will be to:a) Clarify and define both the plume and alternative theories, their predictions and howthey may be tested;b) Match them against one another; andc) Identify the most important avenues of future research that may ultimately lead toresolution of the debate.The meeting will be balanced and structured to present both pro-plume and alternativepoints of view in sessions dealing with theory, mantle physics and dynamics, fieldevidence, age dating, seismology, temperature, petrology and geochemistry, andplanetary aspects. The conveners include two who are arranging the pro-plume side ofthe discussion, and two who are arranging the plume-skeptic side. The venue in Scotlandwas chosen to facilitate international participation, and to allow participation in fieldtrips. These will be to several of the major central volcanic complexes and intrusivecenters of the Scottish Hebrides that have long provided many of the important conceptsof igneous structural geology and petrogenesis in what is now termed the North AtlanticLarge Igneous Province.Average expenses for this meeting for US participants, based on the currentdollars to sterling exchange rate will be about $2100, including $1000 for air fare.Presently, there are 52 U.S. applicants who have submitted abstracts including 5 students.Many of these have requested financial assistance. This award ($20,000) will defray costs for 25 participants, especially students and young scientists, by an average amount of $800.