搜索结果: 1-15 共查到“固体地球物理学 state”相关记录15条 . 查询时间(0.171 秒)
The 3550 year BP-1944 A.D.magma-plumbing system of Somma-Vesuvius: constraints on its behaviour and present state through a review of Sr-Nd isotope data
Somma-Vesuvius magma chamber crustal contamination
2015/9/15
Vesuvius, dominating the densely-populated Neapolitan area, is one of the most dangerous volcanoes in the World. Its destructive power derives from energetic subplinian and plinian eruptions, such as ...
State-of-the-art of historical earthquake investigation in Bulgaria
macroseismology bulletins and catalogues supporting data set site seismic histories
2015/9/14
This paper deals with non-instrumental seismology development in Bulgaria (the central-eastern part of the Balkan peninsula). The first steps and products of this scientific branch are discussed becau...
State-of-the-art of historical earthquake research in Fennoscandia and the Baltic Republics
historical earthquakes mandatory seismic
2015/9/14
We review historical earthquake research in Northern Europe. 'Historical' is defined as being identical with seismic events occurring in the pre-instrumental and early instrumental periods between 107...
State-of-the-art of the historical seismology in Colombia
earthquakes historical seismology catalogue intensity
2015/9/14
In Colombia are available a discreet number of historical seismology investigations, dating back 50 years. This paper reviews basic information about earthquakes studies in Colombia, such as primary s...
Polymerisation, basicity, oxidation state and their role in ionic modelling of silicate melts
polymerisation basicity oxidationstate water speciation Temkin model
2015/9/10
In order to describe and quantify the reactivity of silicate melts, the ionic notation provided by the Temkin formalism
has been historically accepted, giving rise to the study of melt chemical equil...
Modeling the dynamic rupture propagation on heterogeneous faults with rate- and state-dependent friction
dynamic rupture fault constitutive law fault friction stress heterogeneities
2015/9/10
We investigate the effects of non-uniform distribution of constitutive parameters on the dynamic propagation of
an earthquake rupture. We use a 2D finite difference numerical method and we assume tha...
A rate-state model for aftershocks triggered by dislocation on a rectangular fault: a review and new insights
aftershocks earthquake triggering fault parameters rate-and-state Omori law
2015/9/8
We compute the static displacement, stress, strain and the Coulomb failure stress produced in
an elastic medium by a finite size rectangular fault after its dislocation with uniform stress drop
but ...
The Greek Database of Seismogenic Sources (GreDaSS): state-of-the-art for northern Greece
North Aegean seismotectonics earthquake geology active faults
2015/8/26
The Greek Database of Seismogenic Sources (GreDaSS) is a repository of geological, tectonic and active-fault data for the Greek territory and its surroundings. In this report, we present the state-of-...
3-D geomechanical–numerical model of the contemporary crustal stress state in the Alberta Basin (Canada)
Alberta basin geothermal energy deep sediments crystalline rock stress state
2015/1/6
In the context of examining the potential usage of safe and sustainable geothermal energy in the Alberta Basin, whether in deep sediments or crystalline rock, the understanding of the in situ stress s...
Associate Professor Randy Keller，The Department of Geosciences at Oregon State University（图）
Associate Professor Randy Keller mantle plumes subduction zones
2009/12/22
Associate Professor Randy Keller，The Department of Geosciences at Oregon State University.Research interests: Chemical geodynamics of mantle plumes and subduction zones.
Anomalies of critical state in fracturing geophysical objects
Anomalies critical state geophysical objects
2009/11/2
Non-linear time-sequences of fracture-related events were studied in drifting sea-ice and fracturing rock. A reversible drop of the b-value was detected prior to the large-scale sea-ice cover fragment...
On the degassing state and the chemical structure of the Earth's interior inferred from noble gas isotopes—Past and recent views
Earth's interior degassing state noble gas isotopes undegassed reservoir non-convective mantle
2017/8/10
The degassing state of the Earth's interior is one of the main issues in relation to the evolution of the Earth and has been discussed by many investigators over several decades. I outline some trials...
Scaling of small repeating earthquakes explained by interaction of seismic and aseismic slip in a rate and state fault model
Scaling small repeating earthquakes explained by interaction seismic aseismic slip in a rate state fault model
2014/4/8
Because of short recurrence times and known locations, small repeating earthquakes present a rare predictable opportunity for detailed field observations. They are used to study fault creeping velocit...
Spectral element modeling of spontaneous earthquake rupture on rate and state faults: Effect of velocity-strengthening friction at shallow depths
Spectral element modeling spontaneous earthquake rupture rate and state faults:velocity-strengthening friction at shallow depths
2014/4/8
We develop a spectral element method (SEM) for simulating dynamic rupture on rate and state faults and use it to study how the rupture is affected by a shallow fault region of steady state velocity-st...
Variability of earthquake nucleation in continuum models of rate-and-state faults and implications for aftershock rates
Variability earthquake nucleation continuum models rate-and-state faults implications for aftershock rates
2014/4/8
Using two continuum models of rate-and-state faults, one with a weaker patch and the other with rheological transition from steady state velocity-weakening to velocity-strengthening friction, we simul...