_:genid1 . _:genid1 "NSIDC-0542" . _:genid2 . _:genid2 . _:genid2 "-90"^^ . _:genid2 "-90"^^ . _:genid2 "0"^^ . _:genid2 "0"^^ . _:genid3 . _:genid3 . _:genid3 "2004-01-01T00:00:00"^^ . _:genid3 "2005-12-31T00:00:00"^^ . "nsidc-0542" . "Major Ion Concentrations in 2004 South Pole Ice Core"^^ . "10.7265/N5HX19N8" . _:genid1 . . "A 180 m ice core drilled at South Pole in 2004/2005 was analyzed for concentrations of major ions at a depth resolution of approximately 2 cm. Measured ions are chloride, nitrate, sulfate, sodium, potassium, magnesium and calcium. The bottom of the core has been dated to 1830 years before 2004."^^ . "2013-11-19T00:00:00"^^ . _:genid2 . _:genid3 . . _:genid4 . _:genid4 . _:genid4 . _:genid4 . "oai:nsidc/NSIDC-0542" . "http://nsidc.org/api/dataset/2/oai?verb=GetRecord&metadataPrefix=dif&identifier=oai:nsidc/NSIDC-0542" . .