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We present new palaeomagnetic data from two generations of mafic dykes in the Yanbian region of the western South China Block, dated by the zircon U–Pb method at 824±6 and 806±8 Ma, respectively. The primary origin for the characteristic remanent magnetizations is supported by a positive baked contact test, a dyke-tilt test and rock magnetic data. After tilt corrections, 10 dykes from the c. 824 Ma group gave a mean remanent direction of D=230.1°, I=−72.6° with k=16.3 and α95=12.3°, corresponding to a palaeopole at 42.5 °N, 131.8 °E with A95=19.0°. Three dykes...

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