Description: 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).
Global identifier:
Doi(
"10.1594/GFZ.SDDB.1058",
)
Origins: /Wissenschaft/Helmholtz-Gemeinschaft/GFZ
Tags: Kalium ? Mangan ? Titandioxid ? Eisen ? Salpetersäure ? Schwefel ? Verdunstung ? Vergleichsanalyse ? Berechnung ? Aluminium (%) ? Calcium (%) ? Fe normalised ? Fe/Mn ? ICP-AES ? Magnesium (%) ? Mn normalised ? Na ? P ? P norm ? P/Mn ? R/V Vereshchagin ? Si ? Vereshchagin 98 Expedition ? Vereshchagin Long Cores Expedition 2001 ? atomic emission spectrometer ? sample depth ? type of main lithological unit ?
License: unbekannt
Language: Englisch/English
Issued: 2006-01-01
Time ranges: 2006-01-01 - 2006-01-01
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