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Development of a New Method of Extraction of Interstitial Water from Low‐Porosity Consolidated Sediments Recovered During Super‐Deep Drilling Projects
Author(s) -
Toki Tomohiro,
Masuda Harue,
Rashid Harunur,
Hammerschmidt Sebastian,
Shinjo Ryuichi
Publication year - 2016
Publication title -
geostandards and geoanalytical research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.037
H-Index - 73
eISSN - 1751-908X
pISSN - 1639-4488
DOI - 10.1111/j.1751-908x.2015.00366.x
Subject(s) - grind , ultrapure water , porosity , extraction (chemistry) , drilling , geology , sediment , groundwater , mineralogy , environmental science , materials science , geotechnical engineering , metallurgy , chemistry , geomorphology , environmental engineering , chromatography , grinding
During the Integrated Ocean Drilling Program ( IODP ) Expedition 338, several methods were tested for the extraction of interstitial water in consolidated, low‐porosity deep‐sea sediments from Site C0002 in the Kumano Basin. On the basis of those tests, we propose a modified ground rock interstitial normative determination ( GRIND ) method of extraction of interstitial water. In separate runs of the new method, sediment samples were ground in a ball mill with either ultrapure water or a solution of HNO 3 . The interstitial water was then extracted with a conventional squeezer. Sufficient solution was extracted by this method to analyse most major and a few minor components of interstitial water that were comparable to those previously reported for samples extracted by the conventional squeezing method. The new method requires much smaller amounts of sediment than that of the conventional method and will be useful for analysis of samples recovered during super‐deep drilling programmes.