The morphological and petrologico-geochemical features, and the time-space evolution history of Mesozoic dyke-swarms in Da Hinggan Mts. are studied to explore the polytopism and polytrope of the driving forces for deformation of the continental lithosphere. It is found that two dynamic mechanisms were coupled in the deformation of the upper lithosphere when upwelling and intrusion of the mantle-derived magma occurred.
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