Investigating the geochemical and physical response to fluid rock reaction beneath an active hydrothermal system in an arc environment.

研究弧环境中活跃热液系统下流体岩石反应的地球化学和物理响应。

• 批准号: NE/S006303/1
• 负责人: Stephen Roberts
• 金额: $ 4.84万
• 依托单位: University of Southampton
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FS006303%2F1
• 关键词: Investigating; geochemical; physical; response; fluid

What goes on beneath active and extinct hydrothernal vent sites forming within the caldera of a submarine volcano? Establishing the processes active beneath the vent sites is crucial to our understanding of how these vent systems work. Moreover, such systems effectively represent a natural laboratories, which provide insights into the processes widely considered to be responsible for massive sulphide, copper, lead, zinc and gold, mineral resources we find, and presently exploit, from within the geological record. The Brothers volcano is of particular interest, as submarine arc volcanoes differ substantially from those in mid-ocean spreading environments in that they commonly contain a large component of fluid, likley to have derived from the magma chamber below. These magmatic fluids generate contrasting fluid rock reactions which influence the composition and the ore mineral forming potential of the hydrothermal fluids. In addition, these fluids are anticipated to alter the surrounding rocks in a manner not encountered in other environments and which may prove to be distinct signatures that can utimately aid exploration for resources in both submarine and terrestrial environments.

在潜艇火山火山口内形成的活跃和灭绝的热液排气位置下发生了什么？在通风口站点下建立活动的过程对于我们对这些通风系统的工作方式的理解至关重要。此外，此类系统有效地代表了自然实验室，该实验室对被认为负责大量硫化物，铜，铅，锌和黄金的过程的过程提供了见解，我们发现并目前从地质记录中发现并利用了矿物资源。由于海底弧火山与海洋中期扩散环境的差异很大，因此火山尤其引起了人们的关注，因为它们通常含有大量的流体，而Likley则来自下面的岩浆室。这些岩浆流体会产生对比鲜明的流体岩石反应，从而影响水热流体的组成和矿物矿物质的潜力。此外，预计这些流体将以在其他环境中没有遇到的方式改变周围的岩石，并且可能被证明是不同的签名，可以在海底和地面环境中促进资源探索。

项目成果

Hydrothermal Alteration Within the Brothers Submarine Arc Volcano, Kermadec Arc, New Zealand

新西兰克马德克弧兄弟海底弧火山内的热液蚀变

• DOI: 10.5382/econgeo.4962
• 发表时间: 2023
• 期刊: Economic Geology
• 影响因子: 5.8
• 作者: Martin A

Critical role of caldera collapse in the formation of seafloor mineralization: The case of Brothers volcano

• DOI: 10.1130/g46047.1
• 发表时间: 2019-08-01
• 期刊: GEOLOGY
• 影响因子: 5.8
• 作者: de Ronde, Cornel E. J.;Humphris, Susan E.;Reyes, Agnes G.
• 通讯作者: Reyes, Agnes G.