PALEOMAGNETISM OF THE JIAMUSI TERRANE IN THE LATE JURASSIC EPOCH AND CRETACEOUS PERIOD AND ITS TECTONIC SIGNIFICANCE,NE CHINA
Zhang Shihong;Yang Huixin (China University of Geosciences, Beijing 100083)(Changchun University of Earth Sciences.Changchun 130026)
samples have been selected from the cover sequences of Jiamusi terrane,after successive thermal demagnetization treatment and field tests,The paper suggests that the paleomagnetic pole positions of Upper Jurossic and Cretoceous are (63. 4N, 71. 0E,A95=6.1) and(72. 2N, 73. 7E,A95=3.6), and the paleolatitude are 52. 5N and 52. 6N, The result indicate that the Jiamusi terrane have taken a large scale movement after Cretaceous Period.