Abstract:

The systematic multi variable analysis of sedimentary environment on the grain size data and geochemical data of AB 67 drilling core in Barrow is given in this paper. Results show that 32-60 cm section of the core is continental deposits, and this sedimentary environment and process are stable and steady;20-32cm section is a transition period from continental deposits to marine sediments, and magnetic mineral with Cr decrease sharply,the oxides of Si and Ca reduce, one of Ti and Fe increase, organic matter raise;10-20 cm is marine sediments, coase grain is a little, oxide, silt, organic matter and adsorbed composition fluctuate greatly, leached remain composition speed to increase in surface layer, the source of matter is stable, but dynamic environment change greatly.