其构造环境可能为小洋盆初始扩张时的扩张脊。
Its tectonic environment may be the spreading ridge of a small oceanic basin at the start.
结果表明,菲律宾海和南海显示了与磁条带、扩张脊对应或斜交的高频成分大地水准面起伏条带。
The results show that within the Philippine Sea and the South China Sea, short - wavelength lineations of the geoid undulation are parallel or cross to magnetic lineations and rifting ridges.
造山带富集型上地幔形成的构造环境是:洋壳从扩张脊向两侧运移并最终拼入造山带这段时间内。
Tectonic environment of formation of enriched upper mantle is oceanic crust displacement from the oceanic mid-ridge to the orogenic zone.
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