U.S.-Japan Joint Seminar : Magmatic Contributions to Hydrothermal Systems - Magnitude and Importance (November 1991, Kagoshima and Ebino, Japan)

该奖项为六名美国人的参与提供支持 科学家们在美日联合举办的“岩浆构造”研讨会上， 水热系统的作用：规模和重要性”。 水热系统是在水和热在地下水中相遇的地方形成的。 地壳 热液研究的一个重要方面 系统是岩浆的作用。 继续研究化石 和活跃的热液系统表明岩浆 可以通过多种不同的方式为这些系统做出贡献， 这种贡献可能难以确认， 描述。 困难出现，例如，因为 岩浆的贡献相对于总量来说很小 因为它们经历了 通过与其它组分的反应快速改性， 系统 另一个障碍是学科范围广泛 包括，例如，野外地质学，实验 地球化学、热力学模拟、水地球化学和 物理学。 为了全面了解 岩浆对演化的重要性 科学家之间的相互作用， 这些字段是必需的。 研讨会将于1991年11月10日至16日在鹿儿岛举行 和日本九州的埃比诺。主办单位为教授 Stephen E Kesler，地质学系，哥伦比亚大学 密歇根大学和九州矿业部Eiji Izawa博士 日本福冈大学。 拟讨论的具体议题 包括（1）岩浆的火成岩学;（2） 火山喷发物的组成及其与 流体包裹体和地球化学研究 超热和地热系统;（4）化学和 岩浆热液系统的物理模拟。 虽然美国和日本都有许多科学家活跃在 在这个领域，这两个群体之间的接触并不像 尽管它可能很大。 研讨会将允许代表- 来自两国的官员见面交流 信息，并预计更广泛的 研究合作将产生。

This award provides support for the participation of six US scientists in a joint US-Japan seminar on "Magmatic Contribu- tions to Hydrothermal Systems: Magnitude and Importance". Hydrothermal systems form where heat and water meet in the earths crust. One important aspect of research on hydrothermal systems is the role of magmas. Continuing study of fossil and active hydrothermal systems makes it clear that magmas can contribute to these systems in several different ways but such contributions can be difficult to recognize and characterize. Difficulties arise, for example, because magmatic contributions are small in relation to the total mass of the hydrothermal system and because they undergo rapid modification by reaction with other constituents of the system. A further impediment is the wide range of disciplines involved including, for example, field geology, experimental geochemistry, thermodynamic modelling, water geochemistry and geophysics. In order to gain a comprehensive understanding of the importance of magmatic contributions to the evolution of hydrothermal systems, interaction among scientists in these fields is required. The seminar will be held Novemeber 10-16, 1991 at Kagoshima and Ebino, Kyushu, Japan. The co-organizers are Professor Stephen E Kesler, Department of Geology, University of Michigan, and Dr Eiji Izawa, Department of Mining, Kyushu University, Fukuoka, Japan. Specific topics to be discussed include (1) igneous petrology of magmas; (2) the composition of volcanic discharges and their relation to magmatic fluids; (3) fluid inclusion and geochemical studies of epithermal and geothermal systems; and (4) chemical and physical modelling of magmatic hydrothermal systems. Although the US and Japan each have many Scientists active in this field, contact between these two groups is not as extensive as it could be. The seminar will allow represent- atives from the two countries to meet and exchange information and it is anticipated that more extensive research collaboration will result.