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地中海是太平洋之外弧后盆地较为发育的海区。巴利阿里海盆和第勒尼安海盆是西地中海两个位置相邻、互有成因联系的弧后盆地。海盆莫霍面埋深分别为 1 2～ 1 5km和 1 0 km,热流密度分别为 1 0 0 m W/m2和 2 0 0 m W/m2 ,发育有大洋型磁条带异常 ,大洋钻探和拖网取样均采到了拉斑玄武岩。较之巴利阿里海盆 ,第勒尼安海盆更富年青性。两弧后盆地的成生演化是与欧洲板块与非洲 -阿普利亚板块的相互作用息息相关的。中新世 ,随着非洲 -阿普利亚板块向西、西北俯冲 ,科西嘉、撒丁裂离欧洲大陆 ,巴利阿里海盆被打开 ;上新世 ,阿普利亚微板块进一步俯冲 ,导致亚平宁与科西嘉、撒丁之间的裂离 ,形成第勒尼安海盆。
The Mediterranean Sea is a more developed area behind the Pacific Basin. The basin of the Balearic and Tyrrhenian basins is a backarc basin that is adjacent to and interconnected by two genesis in the Western Mediterranean. The Moho depths of the basin are respectively 12 km to 15 km and 10 km, with heat fluxes of 100 mW / m2 and 200 mW / m2, respectively. There is anomalous oceanic magnetic stripe, Trawl sampling were taken to tholeiite basalt. The Tyrrhenian basin is more youthful than the Balearic basin. The evolution of the two backarc basins is closely related to the interaction between the European plate and the African-Apulian plate. Miocene, with the Africa - Apulia plate west and northwest subduction, Corsica, Sardinia split off from mainland Europe, the basin of Balearic was opened; Pliocene, Apulia plate further subduction, Led to a rift between Apenin and Corsica and Sardinia to form the Tyrrhenian basin.