Mineralogical assemblage in sediment core GeoB12309-5 and in area samples from the Makran subduction zone@en

In order to study late Holocene changes in sediment supply into the northern Arabian Sea, a 5.3 m long gravity core was investigated by high-resolution geochemical and mineralogical techniques. The sediment core was recovered at a water depth of 956 m from the continental slope off Pakistan and covers a time span of 5 kyr. During the late Holocene source areas delivering material to the sampling site did, however, not change and were active throughout the year.为探究阿拉伯海北部晚全新世的沉积物补给变化，研究团队对一根长5.3米的重力岩芯（gravity core）采用高分辨率地球化学与矿物学技术展开分析。该沉积岩芯采自巴基斯坦外大陆坡，采集水深为956米，时间跨度达5千年。晚全新世期间，向该采样点输送物质的物源区未发生变化，且全年均保持活跃。