搜索结果: 1-15 共查到“地球物理学 origin”相关记录15条 . 查询时间(0.145 秒)
Experiments call origin of Earth's iron into question
Experiments call origin Earth's iron
2017/3/14
New research from The University of Texas at Austin reveals that the Earth’s unique iron composition isn’t linked to the formation of the planet’s core, calling into question a prevailing theory about...
The May 2012 Emilia (Italy) earthquakes:preliminary interpretations on the seismogenic source and the origin of the coseismic ground effects
Seismic methods Earthquake geology and paleoseismology Structural geology Earthquake source and dynamics Tectonics
2015/8/26
On May 20, 2012, a Ml 5.9 earthquake (T1) occurred in the Emilia-Romagna Region of northern Italy. This was preceded by a Ml 4.1 foreshock on May 19, 2012, and followed by several aftershocks, includi...
Corrigendum to "A database of plagioclase crystal preferred orientations (CPO) and microstructures – implications for CPO origin, strength, symmetry and seismic anisotropy in gabbroic rocks" published in Solid Earth, 4, 511–542, 2013
plagioclase crystal preferred orientations (CPO) microstructures – implications CPO origin strength symmetry seismic anisotropy gabbroic rocks Solid Earth
2015/1/6
Corrigendum to "A database of plagioclase crystal preferred orientations (CPO) and microstructures – implications for CPO origin, strength, symmetry and seismic anisotropy in gabbroic rocks" published...
Floating stones off El Hierro, Canary Islands: xenoliths of pre-island sedimentary origin in the early products of the October 2011 eruption
Floating stones off El Hierro Canary Islands xenoliths of pre-island sedimentary origin early products
2015/1/4
A submarine eruption started off the south coast of El Hierro, Canary Islands, on 10 October 2011 and continues at the time of this writing (February 2012). In the first days of the event, peculiar er...
First observational evidence for the CO2-driven origin of Stromboli's major explosions
CO2-driven origin Stromboli's major explosions
2014/12/31
We report on the first detection of CO2 flux precursors of the till now unforecastable "major" explosions that intermittently occur at Stromboli volcano (Italy). An automated survey of the crater plum...
Origin of the gases released from the Acqua Passante and Ermeta wells (Mt. Amiata, central Italy) and possible environmental implications for their closure
Central Italy Amiata volcano Hydrothermal gases CO_2 Environmental impact
2015/8/18
The Mt. Amiata volcano (Tuscany, central Italy) hosts the second largest geothermal field of Italy. Its SW and NE sectors are characterized by the presence of several CO2-rich (>95% by vol.) gas disch...
Upper Eocene coal and coaly shale in the Central Myanmar Basin: Origin of organic matter and the effect of weathering
Upper Eocene coal and coaly shale depositional environment weathering paleovegetation Central Myanm
2017/4/11
Extensive coals and coaly shales were deposited at the western margin of the Central Myanmar Basin (CMB) during
the Late Eocene. Carbon, nitrogen and sulfur (CNS) elemental analyses, vitrinite reflec...
Origin of giant wave ripples in snowball Earth cap carbonate
Origin of giant wave ripples snowball Earth cap carbonate
2014/4/8
The most extreme climate transitions in Earth history are recorded by the juxtaposition of Neoproterozoic glacial deposits with overlying cap carbonate beds. Some of the most remarkable sedimentary st...
The origin and detection of spike-like anomalies in soil gas radon time series
radon detection spike-like anomaly
2017/4/12
Desorption of radon is of short duration but longer than telluric noises and is usually accomplished in less than one
minute based on our binary event counting with a 16 second interval. Adapting an ...
Mulifractal phase transitions:the origin of self-organized criticality in earthquakes
Mulifractal phase transitions self-organized criticality in earthquakes
2009/11/16
Fractal and occasionally multifractal behaviour has been invoked to characterize (independently of their magnitude) the spatial distribution of seismic epicenters, whereas more recently, the frequency...
An example of resonances,coherent structures and topological phase transitions-the origin of the low frequency broadband spectrum in the auroral zone
coherent structures topological phase transitions low frequency broadband spectrum auroral zone
2009/11/12
We consider the phenomena of intermittent turbulence in magnetized space plasmas from the point of view of topological phase transitions involving the merging and interactions of anisotropic coherent ...
On the origin of time-dependent behaviour in a barotropically unstable shear layer
time-dependent behaviour unstable shear layer
2009/11/12
An experimental study on the instability of a detached Stewartson layer, using an annular, rotating tank with flat, rigid upper and lower boundaries, showed an instability to steady vortices at a crit...
SEISMIC DEFORMATION IN BOUNDARY ZONES OF THE ADRIATIC MICROPLATE：THE MODELS FOR THE THREE REPRESENTATIVE ORIGIN ZONES
SEISMIC DEFORMATION BOUNDARY ZONES THE ADRIATIC MICROPLATE
2009/4/8
On the basis of reliable fault plane solutions and other geological
and geophysical evidence, we defined the three models of the seismic deformation.
Each of them is characteristic of the correspond...
The origin of deep ocean microseisms in the North Atlantic Ocean
microseisms wave – wave interaction acoustic resonance wave model Stoneley waves
2014/4/10
Oceanic microseisms are small oscillations of the ground, in the frequency range of 0.05–0.3 Hz, associated with the occurrence of energetic ocean waves of half the corresponding frequency. In 1950, L...
Three-dimensional deformation caused by the Bam, Iran, earthquake and the origin of shallow slip deficit
Three-dimensional deformation Bam, Iran, earthquake shallow sleep deficit
2014/4/9
Our understanding of the earthquake process requires detailed insights into how the tectonic stresses are accumulated and released on seismogenic faults. We derive the full vector displacement field d...