ICDP Project SUSTAIN (Scientific Drilling of Surtsey Volcano):Experimental studies on formation and thermal history of Surtsey

为了更好地了解50年前的苏尔特西火山喷发，并找到关于喷发机制、能量以及水下和海底过程产生火山灰的悬而未决的问题的答案，将利用具有代表性的玄武岩熔体在岩浆温度下进行碎裂实验。这些实验将包括爆炸性岩浆和云雾岩浆碎裂，以及通过熔体和水冷却剂的非爆炸性相互作用进行的热造粒。热造粒实验将在量热仪中进行，因此有关产品(即透明碎屑岩)的热历史的信息将会出现。与皮巴赫(大学)工作组合作。为了研究喷发后早期的热历史，特别是矿床和地热流体的物质性质对热输运的影响，提出了用新鲜的实验生产的玻璃颗粒(后来也是Surtsey的原始样品)进行水热量热实验。这将与参考热流模型特别相关。

Experimental studies on formation and thermal history of Surtsey.With the aim to provide constraints for a better understanding of the Surtsey eruptions 50 years ago and to find answers to still open questions about the eruption mechanisms, the energetics, and the production of volcanic ash by subaerial and submarine processes, fragmentation experiments will be conducted using representative basaltic melt at magmatic temperatures. The experiments will cover explosive magmatic and phreatomagmatic fragmentation and thermal granulation by non-explosive interaction of melt and watery coolants. Thermal granulation experiments will be performed in a calorimeter, thus information on the thermal history of the products (i.e. hyaloclastites) will emerge. In cooperation with the working group of PI Bach (Univ. Bremen) hydrothermal calorimetric experiments using fresh, experimentally produced glass particles (later also original samples from Surtsey) are proposed to investigate the early post eruptive thermal history, especially the influence of material properties of the deposits and geothermal fluids on the heat transport. This will have particular relevance to reference heat flow models.