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)