Distribution of apparent magnetization for Asia

Magsat total field anomalies over Asia were used to construct an equivalent magnetization model, which represents the apparent magnetization distribut ion within an equivalent layer 40 km thick and correlates well with large-s cale tectonics, for example, the Kazakhstan, Tarim, Yangtze, India, Sino-Ko rea and Indochina blocks. The basin, plain, sea basin, and islands are deli neated by magnetization lows whereas the plateau and marine ridge correspon d to magnetization highs. The boundary between Tibetan Plateau and India ma rked by a strong gradient along its length coincides with the Yarlung Zangb o River fault roughly. The Tanlu fault belt is the boundary between positiv e and negative anomalies. This boundary stretches in southwest direction an d joins Sanjiang fault belt. The boundary between the Southeast China block and the Yangtze block is also clearly delineated by the magnetization anom alies. Generally, the magnetization boundaries are consistent with the coll isional suture of blocks.