Abstract: Based on the mineralogical analysis of 15 surface sediment samples and a core sample obtained on the northeastern off Antarctic Peninsula，the depositional environment and sediment provenance were studied. As revealed by this study 31 kinds of mineral were recognized，including 19 species of heavy mineral and 12 species of light mineral. Garnet，hypersthenes，amphibole，epidote are dominated heavy mineral，and quartz，plagioclase，volcanic glass (brown and white ) are main species of light mineral. According to the distribution of mineral assemblages，two minerral provinces could be identified，namely province I that is pyroxene - magnetite - volcanic glass type and province II of garnet- epidote - amphibole - quartz type. Volcanic rock and volcanic eruptions of the South Shetland Islands and the northern of the Antarctic Peninsula， transported by glacial process，are the main source of province I. Meanwhile，detrital materials from local area of South Orkney Islands and Antarctic Peninsula and adjacent islands carried by the Antarctic circumpolar circulation are the predominated source of province II.

Key words: detrital minerals, provenance, northeast waters of the Antarctic Peninsula