earthquakesseismic waves/ Indian regioniteration processepicentresupper mantlelower mantledeep focus earthquakesIndiaanomalous regionsIn this study all the deep-focus earthquakes occurring in the Indian region (6°–37° N; 70°–100° E) during the years 1936–1969, and which were widely recorded,...
A new self-organizing mechanism for deep-focus earthquakes THE mechanism of deep-focus earthquakes has been a puzzle since their discovery almost 70 years ago, because brittle fracture and frictional sliding at dep... II H.,PC Burnley - 《Nature》 被引量: 589发表: 0年 Rupture Characteristics...
摘要: The hypothesis has been advanced that major portions of the annual pole motion are caused by the seasonal transport of air masses. These pole motions in turn can act as trigger forces on earthquakes. This is tested by observations of northern hemisphere pressures, pole motion, and occurren...
Deep-focus earthquakes that occur at 350–660 km are assumed to be caused by olivine → spinel phase transformation (PT). However, there are many existing puzzles: (a) What are the mechanisms for jump from geological 10−17 − 10−15 s−1to seismic 10 − 103...
必应词典,为您提供deep-focus-earthquakes的释义,用法,发音,音标,搭配,同义词,反义词和例句等在线英语服务。
It appears that the most immediate and important direction in which geologists can assist in seismological-geological research lies along the line of cooperative study of deep-focus earthquakes, the discovery of which by the seismologists has opened an exceedingly interesting new chapter in earth ...
The cause of deep-focus earthquakes beneath subduction zones remains unclear, but dehydration of hydrated minerals within the subducting slab is a strong candidate for seismicity between 70 and 350 km depth. At greater depths, the transition from metastable olivine to the Mg2SiO4 spinel phases is ...
the body wave recordings of deep focus distant earthquakes were selected for several times to be as observed seismograms.Urually,for each seosmic station,the theoretical seismograms of 60 different models were calculated.In fact,the obtained result is deeper than the crust,being the medium structure...
Deep-Focus Earthquakes and Recycling of Water into the Earth's Mantle For more than 50 years, observations of earthquakes to depths of 100 to 650 kilometers inside Earth have been enigmatic: at these depths, rocks are expecte... C Meade,R Jeanloz - 《Science》 被引量: 509发表: 1991年 ...
A PROMINENT phase appearing a few minutes after ScS on the seismograms at the Dominion Observatory, Wellington, of seven deep-focus earthquakes in the south-west Pacific, has been identified as a transverse wave reaching the station after having been reflected, first at the earth's surface near...