搜索结果: 1-15 共查到“地球物理学 state”相关记录21条 . 查询时间(0.093 秒)
UTILIZATION OF LANDSAT-8 DATA FOR LITHOLOGICAL MAPPING OF BASEMENT ROCKS OF PLATEAU STATE NORTH CENTRAL NIGERIA
Landsat-8 Plateau State Lithological Map Remote Sensing
2016/10/14
This paper utilized the Landsat-8 image data to map the lithology’s of Plateau state north central Nigeria. This is includes the rocks, with particular emphasis on their description and classification...
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...
The effects of the overriding plate thermal state on the slab dip in an ocean-continent subduction system
Lithosphere thermal state, numerical models, slab dip,subduction zones
2011/9/5
To evaluate the e ects of variations in the thermal state of the overriding plate on the slab dip in an ocean-continent subduction system, a 2-D nite element thermo-mechanical model was implemented. ...
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.
On a nonlinear state of the electromagnetic ion/ion cyclotron instability
nonlinear state electromagnetic ion/ion cyclotron instability
2009/11/13
We have investigated the nonlinear properties of the electromagnetic ion/ion cyclotron instability (EMIIC) by means of hybrid simulations (macroparticle ions, massless electron fluid). The instability...
State dependent predictability:impact of uncertainty dynamics,uncertainty structure and model inadequacies
State dependent predictability uncertainty dynamics uncertainty structure model inadequacies
2009/11/11
The implications of state dependent, finite time error growth has been studied using singular values in a chaotic 2-dimensional map. Earlier studies have demonstrated the superiority of the singular v...
Modelling the outer radiation belt as a complex system in a self-organised critical state
outer radiation belt complex system self-organised critical state
2009/11/11
The dynamic behaviour of the outer electron radiation belt makes this area of geo-space a candidate for the concept of self-organized criticality. It is shown here that frequency distributions of meas...