Transport and Fate of Nitrogen in a Glacial Outwash Aquifer-Stream System: Upland Processes

Transport and Fate of Nitrate in a Glacial Outwash Aquifer in Relation to Ground-Water Age, Land Use Practices and Redox Processes

Table 1. Bulk and <1 mm fraction mineralogy of sediment samples collected at various depths from sites 1 and 3.

Site	Depth (m)	Location	Bulk fraction†	<1 mm fraction	Total C (%)	Organic C (%)	Inorganic C (%)
OF1	1.5	Top OF1S	qtz, plag, cal.	NA	1.49	0.74	0.76
OF1	3.0	Bottom OF1S	qtz, plag, cal., dol.	NA	1.19	0.3	0.89
OF1	4.6	Thin organic layer	qtz, plag, dol., cal.	smect., illite, kaol., chlor., dol., cal., feld., horn., qtz.	3.17	1.45	1.71
OF1	12.2	Top OF1D	qtz, plag, kspar, dol.,cal.	smect., illite, kaol., chlor., dol., cal., feld., horn., qtz.	1.11	0.21	0.9
OF3	1.5	Unsat. Zone	qtz, kspar, plag, dol.,cal.	smect., illite, kaol., chlor., dol., cal., feld., horn., qtz.	0.06	0.02	0.05
OF3	6.1	OF3S	qtz, kspar, plag, dol.,cal.	NA	0.84	0.04	0.8
OF3	11.6	Top clay lens below OF3M	qtz, plag, kspar, dol., cal.	smect., illite, kaol., chlor., dol., cal., feld., horn., qtz.	0.89	0.09	0.81
OF3	18.3	OF3D	plag, qtz, dol., cal.	NA	0.89	0.01	0.88

†qtz=quartz; plag=plagioclase; kspar=potassium feldspar; cal.=calcite; dol.=dolomite; smect.=smectite; kaol=kaolinite; chlor=chlorite; feld=feldspar; horn.=hornblend

Nutrients National Synthesis Project