Thallium isotope composition of the upper continental crust and rivers - An investigation of the continental sources of dissolved marine thallium - Nielsen, SG; Rehkämper, M; Porcelli, D; Andersson, P; Halliday, AN; Swarzenski, PW; Latkoczy, C; Günther, D (GEOCHIMICA ET COSMOCHIMICA ACTA, 2005)