This chapter describes the structural features and the formation of the oceanic lithosphere. The oceanic crust has a seismically well-defined layered structure. The first layer consists mostly of sediments overlying the igneous crust of the second and third layers. The second layer is volcanic, ...
Ophiolites exposed along the Western Alpine - Northern Apennine (WA-NA) orogenic chain represent the oceanic lithosphere of the Ligurian Tethys which separ... GB Piccardo,E Rampone,A Romairone - 《Ofioliti》 被引量: 61发表: 2002年 INSIGHTS INTO THE ORIGIN OF MANTLE GRAPHITE FROM A NEW OC...
Role of metasomatized mantle lithosphere in the formation of giant lode gold deposits: Insights from sulfur isotope and geochemistry of sulfides[J]. Geoscience Frontiers, 2023, 14(5): 101587. DOI: 10.1016/j.gsf.2023.101587 Citation: Baisong Du, Zuoman Wang, M. Santosh, Yuke Shen, Shuf...
southern margin of Lhasa massif 拉萨地块(又称冈底斯带)是位于雅鲁藏布江缝合带与班公湖-怒江缝合带间的近东西向地块[1], 记录了特提斯洋壳俯冲、印度-亚洲大陆碰撞的重要信息, 是研究板块构造理论的天然实验室[2]。拉萨地块南缘发育大量中新生代火山岩, 叶巴组火山岩因其记录了特提斯洋的早期俯冲消减过程...
•New oceanic plate material is formed along the mid-ocean ridge. Here molten rock slowly rises up through a deep trench and forces the two sides of the plate apart. Because the molten lava is very hot, it is not very dense and so forms high "mountains" besides the trench. As new ...
In addition, transient thermal excursion was revealed, in region, from strikingly concordant chemical zonation of garnet in coesite-bearing oceanic eclogites34, disclosing the potential translation of ultra-high-pressure rocks (UHP) refrigerated slices near to a relatively hotter mantle wedge. In this...
Honnorez J (1981) The ageing of the oceanic crust at low temperature. In: Emiliani C (ed) The oceanic lithosphere. The sea, vol 7. John Wiley, New York, pp 525–587 Google Scholar Horton DG (1985) Mixed-layer illite/smectite as a paleotemperature indicator in the Ametheyst vein syst...
Effects of Matter in Atmospheric Neutrino Oscillations and the Formation of MagmaAbstractThe current magma formation theory has many shortcomings and is unable to address issues such as the origin of granites and the source of oceanic seamount magmas, and its evolution is ambiguous. Here, based on...
Crustal geothermal gradients in thick lithospheric plates are colder than in thin, earth-like lithosphere, but this effect may be countered by increased mantle potential temperatures on young planetary bodies2. On early Mars, geothermal gradients predicted from the thermal conductivity and density of ba...
The results demonstrate that more than 500 ppm graphite are required to fit the data in the mantle lithosphere (Fig. 4D). Subducting slabs can contain more than 100,000 ppm, 500–600 ppm, and 700 ppm carbon in sediments, altered oceanic crust, and serpentinized peridotites, respectively, ...