Fault lubrication then is the phenomena whereby the friction on the fault surface decreases as it slips, making it easier for the fault to slip as it does so.
12.
The average angular deviation is insignificant when compared with the total of instrumental ( measuring tools ) and observation ( unevenness of fault surfaces and striae ) errors in majority of the cases.
13.
The earthquake was at the time the longest recorded normal-fault surface rupture in historic time . It was later described as an outstanding study and a pioneering achievement .
14.
The stress field is assumed to be spatially uniform for a faulted fault surface from the known stress field and the slip on each of the fault surface has the same direction and magnitude.
15.
The stress field is assumed to be spatially uniform for a faulted fault surface from the known stress field and the slip on each of the fault surface has the same direction and magnitude.
16.
As a fault slips, this layer of molten rock is smeared and spread across the fault surface, and is forced into any other cracks or interstices that may exist in the surrounding rock.
17.
The earthquake was at the time the longest recorded normal-fault surface rupture in historic time . His report was later described as an outstanding study and a pioneering achievement .
18.
With the end of the outpouring, when emplacement ceased, cooling of the magma started, leaving the potholes filled, and creating a fault surface at the interface of the pothole and the filling magma.
19.
Each detachment fault has three notable features : a breakaway zone where the fault began, an exposed fault surface that rides over the dome and a termination, which is usually marked by a valley and adjacent ridge.
20.
The overall fault displacement was summarized by geologist Barclay Kamb and others as " nearly equal amounts of north south compression, vertical uplift ( north side up ), and left lateral slip and hence may be described as a thrusting of a northern block to the southwest over a southern block, along a fault surface dipping about 45?north ."
