N3是1999年12月05日尹雪斌在南极Nelson Island in the northern ice-free areas on the southern margin, Tripe close to the lake采集的柱状沉积物。

该沉积物发现的位置是南极Nelson Island in the northern ice-free areas on the southern margin, Tripe close to the lake，经度58°56'W，纬度62°13'S，采集区域地址是Nelson Island in the northern ice-free areas on the southern margin, Tripe close to the lake。