在夏威夷基拉韦亚火山下面的地幔断层区域,夏威夷
Cecily J Wolfe1, Paul G Okubo, Peter M Shearer
1Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, Honolulu, HI96822, USA. wolfe@hawaii.edu
概括
Kilauea 火山的深度地震源于构造断层,而不是岩. 地震性揭示了30公里深处的低角度断层平面上的向海滑动,表明了石压力.
科学领域:
- * 地质物理学和火山学,专注于深层地震活动.
背景情况:
- * Kilauea火山表现出深度地震事件 (>=13公里深度).
- *了解这些地震的来源对于评估火山危险至关重要.
研究的目的:
- * 分析基拉韦亚火山深度地震的特征和起源.
- * 要区分构造断层和由岩驱动的地震源.
主要方法:
- * 迁移深度地震低中心.
- *地震事件的焦点机制分析.
- * 整合地质数据来解释地震性.
主要成果:
- *深度地震力集中在一个30公里深的低角度断层区域,向海滑动.
- *地震主要表明在脆弱的石化层内发生了构造断层.
- *岩运动并不是这些深层事件的主要原因.
结论:
- * 基拉韦亚的深度地震主要是构造性的,可能是由岩应力引发的.
- *先前存在的断层和区域应力有助于观察到的地震性.
- * 发现区分了构造性地震源与深处的火山活动.
更多相关视频
07:58Data Processing Methods for 3D Seismic Imaging of Subsurface Volcanoes: Applications to the Tarim Flood Basalt
Published on: August 7, 2017
11:25Identification and Quantification of Decomposition Mechanisms in Lithium-Ion Batteries; Input to Heat Flow Simulation for Modeling Thermal Runaway
Published on: March 7, 2022
相关概念视频
Isothermal Processes
A thermodynamic process that occurs at constant temperature is called an isothermal process. Heat slowly flows into the system or out of the system to maintain thermal equilibrium. Processes involving phase changes like water evaporation into steam or freezing water into ice at a constant temperature are examples of Isothermal Processes.
An ideal gas can also undergo isothermal expansion or compression.
For example, consider 1 mole of an ideal gas inside an isolated cylinder at initial volume V...
An ideal gas can also undergo isothermal expansion or compression.
For example, consider 1 mole of an ideal gas inside an isolated cylinder at initial volume V...
Temperature Dependent Deformation
In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added together...
Fault Types
When analyzing a single line-to-ground fault from phase A to ground at a three-phase bus, it is important to consider the fault impedance. This impedance is zero for a bolted fault, equal to the arc impedance for an arcing fault, and represents the total fault impedance for a transmission-line insulator flashover. To derive sequence and phase currents, fault conditions are translated from the phase domain to the sequence domain.
For line-to-line faults occurring between phases B and C, the...
For line-to-line faults occurring between phases B and C, the...
Quarrying of Stone
Quarrying is the process of extracting stone from a quarry, where specialized techniques are employed to remove large blocks of stone safely and efficiently. This process can involve controlled explosions or more precision-oriented methods such as cutting and drilling.
One common method involves using a diamond belt saw to cut large blocks from the quarry face. These blocks can be about 50 feet long and 12 feet high. After the initial vertical cut, drilling is performed at the base of the block.
One common method involves using a diamond belt saw to cut large blocks from the quarry face. These blocks can be about 50 feet long and 12 feet high. After the initial vertical cut, drilling is performed at the base of the block.
Masonry Cavity Walls
Cavity walls feature a hollow space between the outer and inner wythes, connected only by corrosion-resistant metal ties. When water seeps through the outer wythe, it descends within this cavity, intercepted by flashing and eventually exiting through weep holes. To enhance moisture resistance, the inner wythe's cavity side often receives damp-proofing, doubling as an air barrier. The cavity can also house insulation to mitigate heat transfer.
Maintaining a clean cavity during construction is...
Maintaining a clean cavity during construction is...
Boundary Layer Characteristics
When a fluid encounters a solid surface, a boundary layer forms due to the interaction between the fluid's motion and the stationary surface. This phenomenon is characterized by a thin region adjacent to the surface where viscous forces dominate, influencing the fluid's velocity profile. The development of the boundary layer begins at the leading edge of the surface and evolves as the fluid moves downstream.As the fluid flows over the surface, friction between the fluid and the wall slows down...
