Texture,mineralogy and composition of four sediment cores from Granite Harbour and New Harbour, southern Victoria Land, Antarctica

Publisher Website
Google Scholar
Abstract
Sediment cores have been taken from Granite Harbour (3) and New Harbour (1)in water From 254 to 550 m deep.The cores, which range m length from 36 to 56 cm, are muddy sand and sandy mud with a few scattered pebbles, and have been analysed in detail for size, mineralogy and composition. Thirty-two chemical analyses are presen ted. Each core varies little throughout its length, but there is a substantial difference between cores from Granite Harbour and New Harbour.Petrographic study shows that Granite Harbour cores are dominated by granitic material from the local basement, whereas the New Harbour core has mainly debris from the McMurdo Volcanics, probably windblown and ice-rafted from the south.The difference in source is the main influence on the major and trace element chemistry.