RIDGE Field School on the Structure and Genesis of the Troodos Ophiolite, Cyprus

1999年6月将在塞浦路斯举办一所山脊野外学校，研究Troodos蛇绿岩的野外地质，这是一个典型的古老洋壳岩石区域，可以对现代洋壳的结构和成因提供重要的见解。该学校将专注于蛇绿岩段的上部，在那里暴露出海底火山岩和下伏的侵入岩席状岩脉和上部深成岩段。本节还显示了古海底以下高温和低温热液蚀变过程的记录。特罗多斯蛇绿岩是唯一存活下来的主要蛇绿岩，不仅几乎没有变形，而且没有变质。因此，它提供了对洋壳结构和构造的极好洞察。对于在大洋中脊研究火山和热液过程的任何科学家来说，对这一独特地点的访问是一次宝贵的经验，提供了对支撑在活跃的大洋中脊表面所看到的那些次表面特征的性质的新见解。在为期6天的实地考察过程中，可以对地质部分进行全面的考察，在露头进行辩论，并通过几个有针对性的讲座来进一步说明。这种形式使各级科学家对扩散中心的地壳结构有了更好的了解，但该学院的重点将是研究生和职业生涯早期的科学家。实地考察学校将由11名受邀研究人员领导，他们对特罗多斯蛇绿岩和(或)大洋中脊过程的地质有专门知识。召集人将是利兹大学的Joe Cann、维多利亚大学的Kathy Gillis和塞浦路斯地质调查局的Costas Xenophontos。后勤将由俄勒冈州立大学的里奇办公室负责。

A RIDGE Field School will be held in Cyprus during June, 1999 to study the field geology of the Troodos Ophiolite, a classic region of old ocean crustal rocks which can provide important insights into the structure and genesis of modern oceanic crust. The school will focus on the upper parts of ophiolite section, where seafloor volcanics and the underlying intrusive sheeted dikes and upper plutonic sections are exposed. This section also displays a record of hydrothermal alteration processes below the ancient seafloor, at both high and low temperatures. The Troodos Ophiolite is the only accessible major ophiolite to have survived not only almost undeformed, but also unmetamorphosed. As such, it provides an excellent insight into the structure and construction of the ocean crust. A visit to this unique locality is an invaluable experience for any scientist working on volcanic and hydrothermal processes at mid-ocean ridges, providing new insight into the nature of the sub-surface features that underpin those seen at the surface in active mid-ocean ridges. In the course of a 6-day field trip, the geological section can be comprehensively inspected, argued over in outcrop, and further illustrated by a few, well-targeted lectures. This format leads to a much improved understanding of crustal construction at spreading centers, for scientists at all levels, but the focus of the school will be for graduate students and early-career scientists. The field school will be lead by a group of eleven invited researchers with an expertise in the geology of the Troodos Ophiolite and/or mid-ocean ridge processes. The convenors will be Joe Cann, University of Leeds; Kathy Gillis, University of Victoria; and Costas Xenophontos, Cyprus Geological Survey Department. Logistics will be handled by the RIDGE office at Oregon State University.