Abers, G. , Hydrated subducted crust at 100–250 km depth , Earth Planet. Sci. Lett. , 176 , 323 – 330 , 2000Abers, G. A. ( 2000 ), Hydrated subducted crust at 100–250 km depth , Earth Planet. Sci. Lett. , 176
At least 4 causes for depth anomalies are identified: uparching around volcanic edifices, volcanic precursor uplift (either active or dead), uplift accompanying intraplate deep-sea volcanism and uparching on the outer swell of trenches. All these have deformed Pacific Mesozoic crust....
During the Phanerozoic Eon, these processes have gradually oxidized the crust to greater and greater depth, thus equilibrating successively deeper minerals to the rising oxygen fugacity of the atmosphere. Manganese minerals, which typically form in the shallow crust, thus require on average a ~66...
It shows that all the topography compensation is within the depth range from 0 to 1400 km. Different topographic irregularities are most likely to be compensated at depths that correspond to the upper crust (d =(4.5 +- 3.7)km), crust-mantle transition layer (d = (78 +- 24)km), ...
Closed-system, continuous melting and crystallisation to produce TTGs have also been questioned, with alternative models highlighting the importance of mineral segregation29, loss of interstitial liquids26, and hybridisation of melts formed at progressively increasing depth30. The source rocks provide an ...
Later positive Ps conversions represent the Moho, which occurs at 40-50km depth below the Sichuan basin and deepens to the NW to 55-70km depth under Tibet. An important finding of this study is that whereas in the NE, the Moho deepening from SE to NW is smooth, in the middle and SW...
Curie point depth based on spectrum analysis of the magnetic anomaly data in East and Southeast Asia The bottom of the magnetized crust determined from the spectral analysis of residual magnetic anomalies is generally interpreted as the level of the Curie ... A Tanaka,Y Okubo,O Matsubayashi - ...
deep crust 美 英 un.地壳深处 网络深部地壳 英汉 网络释义 un. 1. 地壳深处 例句 释义: 全部,地壳深处,深部地壳
For Mauritius, receiver function data were used34 to infer a Moho depth of ∼21 km; those authors favoured entirely oceanic crust thickened by magmatic underplating, although they could not rule out the presence of ‘embedded’ continental crustal relics. Clearly, geophysical data, in isolation...
H. The geochemistry of Archaean plagioclase-rich granites as a marker of source enrichment and depth of melting. Earth Environ. Sci. Trans. R. Soc. Edinb. 100, 35–50 (2009). CAS Google Scholar Champion, D. C. & Smithies, R. H. Geochemistry of Paleoarchean granites of the East ...