In-situ LA-ICPMS analysis of a giant spicule of a deep sea sponge Jochum, K. P. ; Müller, W. E. G. ; Stoll, B. ; Wang, X. Abstract Publication: Geochimica et Cosmochimica Acta Supplement Pub Date: July 2008 Bibcode: 2008GeCAS..72Q.433J