Upgrade and Development of LDEO Rock Mechanics Laboratory Equipment for Hydrothermal Deformation Experiments

9614065肖尔茨这笔赠款提供130,000美元，作为升级拉蒙特-多尔蒂地球天文台岩石力学实验室的部分费用和一名实验室技术员的部分工资支持。具体地说，这些资金将用于购买必要的设备，以升级其目前的三轴压力机，以适应高温任务，包括一个新的气体介质伺服控制围压系统，以及建造一个流体分离器系统，使热流体与冷流体保持独立，并保持恒温。该系统将用于热液条件下岩石变形的短期(4天)研究。对于较长期(几个月)的变形实验，将建造五个对停电相对不敏感的廉价三轴压力机系统，并将用于化学/机械诱导压力溶液的研究。该设备将使PI能够继续对溶液输送变形对断裂带流变学的影响进行尖端研究，并记录成岩沉淀和在偏应力下存在反应流体时的溶解对沉积和破裂的火成岩和变质岩渗透率的影响。***

9614065 Scholz This grant provides $130,000 as partial support of the costs of upgrading Lamont-Doherty Earth Observatory's rock mechanics laboratory and partial salary support for a laboratory technician. Specifically, these funds will be used to purchase equipment necessary to upgrade their current triaxial press for high temperature duty, including a new gas medium servo controlled confining pressure system and construction of a fluid separator system so that hot fluids are kept independently contained from cold fluids and at constant temperature. This system will be used for short term studies (4 days) of rock deformation under hydrothermal conditions. For longer term (several month) deformation experiments, five inexpensive triaxial presses systems will be built that are relatively insensitive to power outages and will be used for studies of chemical/mechanical induced pressure solution. This equipment will allow the PI to continue cutting edge research on the impact of solution transport deformation on fault zone rheology and to document the effects of diagenetic precipitation and dissolution in the presence of reactive fluids under deviatoric stress on permeability in sedimentary and fractured igneous and metamorphic rocks. ***