2026-06-30T16:26:47Zhttp://doidb.wdc-terra.org/oaip/oai

oai:doidb.wdc-terra.org:332026-06-10T10:05:45ZDOIDBDOIDB.SDDB

false4DOIDB.SDDB 10.1594/GFZ.SDDB.1058 Fagel, Natalie Alleman, Laurent Granina, L Hatert, F Thamo-Boszo, Edit Cloots, R André, Luc Deutsches GeoForschungsZentrum GFZ 2006 2006-09-15 Dataset 10.1016/j.gloplacha.2004.09.022 In order to get a complete geochemical signature, 14 P-rich concretions, chosen among the different cores, were acid digested (Table 3a and Table 3b). In a clean laboratory, 1.7 to 36 mg of concretions were digested overnight in a concentrated mixture of Suprapur acid (3 ml HCl/2 ml HNO3/1 ml HF) at 90 °C in sealed Teflon beakers. After evaporation to dryness, the residue was dissolved in 2.5 ml of 2% HNO3 Suprapur and diluted to 12 ml with Milli-Q water. During the same procedure, we have also dissolved and analysed, for comparison, a pure vivianite from Anlua, Cameroon (tubular crystals, MRAC collection).
105.857 108.914 52.0775 53.9632