USGS - Pontchartrain Geochemistry - Sediment Database Inorganics Table Sample

Environmental Geochemistry and Sediment Quality in Lake Pontchartrain

Table 6. Sample of Inorganic Data (metals)

Example of selected fields from Inorganic Data Table (spreadsheet format). All chemical components have a minimum of three fields to define analytical values in normal units (units are reflected in the field name, e.g. UG_G denotes µg/g), qualifying data, and detection limits. In this case only Ca is shown with its three fields. The original reported units were "% CaCO₃" for Unique ID numbers 652-654.

2	108	111	116	133	134	135	138	149	152	155	186	194	231
UNIQUE_ID	AG_UG_G	AL_UG_G	AS_UG_G	CA_UG_G	CA_Q	CA_DL	CD_UG_G	CR_UG_G	CU_UG_G	FE_UG_G	NI_UG_G	PB_UG_G	ZN_UG_G
Unique Sample ID	Ag (silver) µg/g	Al (aluminum) µg/g	As (arsenic) µg/g	Ca (calcium) µg/g	Ca q	Ca det. lim.	Cd (cadmium) µg/g	Cr (chromium) µg/g	Cu (copper) µg/g	Fe (iron) µg/g	Ni (nickel) µg/g	Pb (lead ) µg/g	Zn (zinc) µg/g
1	0.157		0.822				0.260	9.20	12.6		5.05	9.44	37.5
4	0.206		1.06				0.854	30.7	30.7		7.00	66.6	201.0
7	0.091		0.634				0.290	23.4	22.4		8.80	14.0	61.3
516		19514		13152.7			1.3	135.0	31.0	20734	27.80	422.33	300.17
527		27114		13652.7			1.7	522.5	43.9	22444	30.20	293.67	413.00
530		34014		18816.0			2.9	1155.3	60.1	25374	36.10	281.83	579.33
652				5	% CaCO3			70.04	20.57	26425	22.49	26	47.98
653				4.5	% CaCO3			55.1	27.1	34364	18.15	59	62.63
654				5	% CaCO3			66.93	25.65	28129	16.06	21	54

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