• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: thorium; protactinium; seawater; Indian Ocean; ocean circulation; Antarctic; Indian; Antarc*; North Atlantic
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.591.7750; http://www.earth.ox.ac.uk/~gideonh/pdffiles/Thomas et al. 2006.pdf

hrom rather than averaging the whole water column. These findings suggest that 231Paxs/ 230Thxs in sediments provides information and carbon [1]. Tracers used to investigate the past [5,6], sortable silt [7,8] and 231Pa/230Th [9–13]. The use of 231Pa/230Th for this purpose has only previously. Here, we investi-Earth and Planetary Science Lettersbehaviour of the thermohaline circulation have oftenprimarily about deep-water masses. In this region, sedimentary records will therefore provide information about the past flow of Antarctic Bottom Water into the Indian Ocean. Interpretation of data from other regions, such as the North Atlantic where this proxy has most successfully been applied, requires careful consideration of regional oceanography and knowledge of the composition of the water masses being investigated.