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

小行星9614065 这笔赠款提供了130 000美元，用于支付拉蒙特-多尔蒂地球观测站岩石力学实验室升级的部分费用和一名实验室技术员的部分薪金。 具体而言，这些资金将用于购买必要的设备，以升级其目前的高温三轴压力机，包括一个新的气体介质伺服控制围压系统和流体分离器系统的建设，使热流体保持独立于冷流体和恒温。 该系统将用于热液条件下岩石变形的短期研究（4天）。 对于长期（几个月）的变形实验，五个廉价的三轴压力机系统将建成相对不敏感的停电，并将用于化学/机械诱导压力解决方案的研究。 该设备将使PI能够继续对溶液输运变形对断层带流变学的影响进行前沿研究，并记录在偏应力下存在反应性流体的情况下成岩沉淀和溶解对沉积和断裂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. ***