摘要：The study area is located at coastal and offshore Kundur and Adjacent Area, geographically located at coordinates of 0º 39'00 "0º 50'00" N and 103º 10'00 "103º 25 '00" S. Rare earth elements are found in seven seafloor surfacial sediment and 3 core samples are Cerium (15.41 to 16.88 ppm), Lanthanum (5.40 to 6.80 ppm), Ytrium (5.18 to 5, 58 ppm), Zirconium (5.05 to 5.95 ppm) and Neodymium 20.25 to 20.95 ppm). The minerals that containing of rare earth elements at the study area are apatite, zircon, monazite, and pyrochlore and xenotime. Seafloor surfacial sediment at Kundur are composed by silt (Z), sandy silt (sZ), sandy gravel, mud and sand. Silt unit covering nearly 55% of the study area and followed by sandy gravel, sand, silt and sandy silt. Seafloor morphology varies those are flat morphology with gradually depth changes and a regularly shaped identation curves and holes likely a result of sand mining. Coastal characteristics consists of: sandy and muddy beach. Sandy beach has medium relief (5° - 8°), composed by medium to coarse sand, brownish yellow. The muddy beach has low relief (1° - 5°) where the edges of the beach is mangroves planted by the local peoples.
其他摘要：Daerah penelitian terletak di kawasan pantai dan lepas pantai perairan Pulau Kundur dan Sekitarnya. Secara geografis terletak pada koordinat 0º 39’00” - 0º 50'00” LU dan 103º 10'00”- 103º 35' 00”BT. Mineral di daerah penelitian yang mengandung unsur tanah
关键词：rare earth elements;seabed sediments;sea floor morphology;and Kundur Island
其他关键词：unsur tanah jarang;sedimen permukaan dasar laut;morfologi permukaan dasar laut;dan Pulau Kundur
