1989 Vol. 24, No. 1
Article Contents

Zhang Zhongying, Liu Ruihua. THE STAGE-DIVISION OF QUATERNARY VOLCANIC ROCKS IN HAINAN ISLAND[J]. Chinese Journal of Geology, 1989, 24(1): 67-76.
Citation: Zhang Zhongying, Liu Ruihua. THE STAGE-DIVISION OF QUATERNARY VOLCANIC ROCKS IN HAINAN ISLAND[J]. Chinese Journal of Geology, 1989, 24(1): 67-76.

THE STAGE-DIVISION OF QUATERNARY VOLCANIC ROCKS IN HAINAN ISLAND

  • The volcanic rocks in Hainan Island are mainly distributed in the northern part of the island with an area of 4159.79 km2 about 12% of the total area of the island. These vol. canic rocks are mainly basalte and volcaniclastics.The stage-division of the volcanic rocks are mainly based on the stratigraphy and chronology of the volcanic rocks and the development stages of weathering crust from basalts The development stages of weathering crust from basalts are depend on the ratio between the contents of SiO2 Fe2O3, Al2O3 of laterite and basalt, i.e. the weathering coefficient.The development of the volcanic rocks in Hainan Island can be divided into 6 periods:1. Jinniuling period(N2). 2. Quangcuan period (N2 - Q11).3. Duowenling period (Q12 - Q12). 4. Deyiling period (Q23). 5. Changliu period(Q31). 6. Leihuling period(Q41).
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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