Studies of Blueschist Materials From Mariana Forearc Mud Volcanoes

油炸锅。pi将调查早先在马里亚纳前弧巡航期间收集的蓝片岩样本。马里亚纳是唯一一个可以从泥火山带到海底的深层物质中直接获得样本的地区，而泥火山的深断层是这种深弧前物质的管道。孔隙流体、封闭固体物质和流体/气体包裹体的同位素研究将反映烃源区和全程水岩相互作用。该研究将更好地约束深前弧地幔楔在滑脱附近的温压条件和会聚边缘水岩相互作用的性质。

Fryer. et. al.The PIs will investigate the blueschist samples collected during earlier cruises from the Mariana Forearc. The Mariana is the only area where direct samples are available from deep-seated material brought to the seafloor by mud volcanoes with deep faults acting as conduits for this deep forearc material. Isotopic studies of the pore fluids, enclosing solid material and fluid/gas inclusions will reflect the source regions and enroute water-rock interactions. The study will provide better constraints on temperature-pressure conditions of the deep forearc mantle wedge near the decollement and nature of the water-rock interactions in convergent margins.