Volcanic Rock Geochemistry

Table 2: List of variables describing the trace elements analysed (see Table 1 for a list of major elements analysed).

Variable	Description	Count
LabNum	lab sample number	5081
Longitude	east geographic coordinate	5081
Latitude	north geographic coordinate	5081
Datum	datum upon which the latitude and longitude are based	5081
Ag_ppm_AAS	Silver, ppm, by AAS	518
Ag_ppm_DCP	Silver, ppm, by DCP	481
As_ppm_DCP	Arsenic, ppm, by DCP	479
Au_ppb_DCP	Gold, ppb, by DCP	479
Ba_ppm_AAS	Barium, ppm, by AAS	534
Ba_ppm_DCP	Barium, ppm, by DCP	479
Ba_ppm_ICS	Barium, ppm, by ICS	834
Ba_ppm_XRF	Barium, ppm, by XRF	2655
Be_ppm_AAS	Beryllium, ppm, by AAS	130
Be_ppm_DCP	Beryllium, ppm, by DCP	479
Be_ppm_ICS	Beryllium, ppm, by ICS	209
Cd_ppm_AAS	Cadmium, ppm, by AAS	108
Ce_ppm_ICM	Cerium, ppm, by ICM	434
Ce_ppm_ICS	Cerium, ppm, by ICS	788
Ce_ppm_XRF	Cerium, ppm, by XRF	308
Co_ppm_AAS	Cobalt, ppm, by AAS	611
Co_ppm_DCP	Cobalt, ppm, by DCP	481
Co_ppm_XRF	Cobalt, ppm, by XRF	208
Cr_ppm_AAS	Chromium, ppm, by AAS	236
Cr_ppm_DCP	Chromium, ppm, by DCP	481
Cr_ppm_ICS	Chromium, ppm, by ICS	315
Cr_ppm_XRF	Chromium, ppm, by XRF	2483
Cu_ppm_AAS	Copper, ppm, by AAS	1455
Cu_ppm_DCP	Copper, ppm, by DCP	481
Cu_ppm_ICS	Copper, ppm, by ICS	758
Cu_ppm_XRF	Copper, ppm, by XRF	1554
Dy_ppm_ICM	Dysprosium, ppm, by ICM	434
Dy_ppm_ICS	Dysprosium, ppm, by ICS	146
Dy_ppm_XRF	Dysprosium, ppm, by XRF	199
Er_ppm_ICM	Erbium, ppm, by ICM	434
Er_ppm_XRF	Erbium, ppm, by XRF	203
Eu_ppm_ICM	Europium, ppm, by ICM	434
Eu_ppm_XRF	Europium, ppm, by XRF	205
F_ppm_ISE	Fluorine, ppm, by ISE	902
Ga_ppm_ICS	Gallium, ppm, by ICS	1050
Ga_ppm_XRF	Gallium, ppm, by XRF	1547
Gd_ppm_ICM	Gadolinium, ppm, by ICM	434
Gd_ppm_XRF	Gadolinium, ppm, by XRF	212
Hf_ppm_ICM	Hafnium, ppm, by ICM	388
Hg_ppm_AAS	Mercury, ppm, by AAS	190
Ho_ppm_ICM	Holmium, ppm, by ICM	434
La_ppm_ICM	Lanthanum, ppm, by ICM	434
La_ppm_ICS	Lanthanum, ppm, by ICS	425
La_ppm_XRF	Lanthanum, ppm, by XRF	965
Li_ppm_AAS	Lithium, ppm, by AAS	477
Li_ppm_DCP	Lithium, ppm, by DCP	479
Li_ppm_ICS	Lithium, ppm, by ICS	243
Lu_ppm_ICM	Lutetium, ppm, by ICM	434
Mo_ppm_AAS	Molybdenum, ppm, by AAS	501
Nb_ppm_ICM	Niobium, ppm, by ICM	383
Nb_ppm_ICS	Niobium, ppm, by ICS	872
Nb_ppm_XRF	Niobium, ppm, by XRF	2074
Nd_ppm_ICM	Neodymium, ppm, by ICM	434
Nd_ppm_XRF	Neodymium, ppm, by XRF	253
Ni_ppm_AAS	Nickel, ppm, by AAS	1308
Ni_ppm_DCP	Nickel, ppm, by DCP	481
Ni_ppm_ICS	Nickel, ppm, by ICS	703
Ni_ppm_XRF	Nickel, ppm, by XRF	1958
Pb_ppm_AAS	Lead, ppm, by AAS	826
Pb_ppm_DCP	Lead, ppm, by DCP	481
Pb_ppm_ICM	Lead, ppm, by ICM	245
Pb_ppm_ICS	Lead, ppm, by ICS	683
Pb_ppm_XRF	Lead, ppm, by XRF	839
Pr_ppm_ICM	Praseodymium, ppm, by ICM	434
Pr_ppm_XRF	Praseodymium, ppm, by XRF	123
Rb_ppm_AAS	Rubidium, ppm, by AAS	1314
Rb_ppm_XRF	Rubidium, ppm, by XRF	2552
Sc_ppm_DCP	Scandium, ppm, by DCP	479
Sc_ppm_ICM	Scandium, ppm, by ICM	186
Sc_ppm_ICS	Scandium, ppm, by ICS	657
Sc_ppm_XRF	Scandium, ppm, by XRF	261
Sm_ppm_ICM	Samarium, ppm, by ICM	434
Sm_ppm_XRF	Samarium, ppm, by XRF	211
Sr_ppm_AAS	Strontium, ppm, by AAS	519
Sr_ppm_DCP	Strontium, ppm, by DCP	479
Sr_ppm_ICS	Strontium, ppm, by ICS	855
Sr_ppm_XRF	Strontium, ppm, by XRF	2637
Ta_ppm_ICM	Tantalum, ppm, by ICM	290
Tb_ppm_ICM	Terbium, ppm, by ICM	434
Th_ppm_ICM	Thorium, ppm, by ICM	448
Th_ppm_ICS	Thorium, ppm, by ICS	704
Th_ppm_XRF	Thorium, ppm, by XRF	674
Tm_ppm_ICM	Thulium, ppm, by ICM	434
U_ppm_INA	Uranium, ppm, by INA	739
U_ppm_XRF	Uranium, ppm, by XRF	181
V_ppm_AAS	Vanadium, ppm, by AAS	541
V_ppm_DCP	Vanadium, ppm, by DCP	479
V_ppm_ICS	Vanadium, ppm, by ICS	240
V_ppm_XRF	Vanadium, ppm, by XRF	2005
Y_ppm_ICM	Yttrium, ppm, by ICM	320
Y_ppm_ICS	Yttrium, ppm, by ICS	993
Y_ppm_XRF	Yttrium, ppm, by XRF	2144
Yb_ppm_ICM	Ytterbium, ppm, by ICM	434
Yb_ppm_XRF	Ytterbium, ppm, by XRF	117
Zn_ppm_AAS	Zinc, ppm, by AAS	1396
Zn_ppm_DCP	Zinc, ppm, by DCP	481
Zn_ppm_ICS	Zinc, ppm, by ICS	742
Zn_ppm_XRF	Zinc, ppm, by XRF	1827
Zr_ppm_DCP	Zirconium, ppm, by DCP	479
Zr_ppm_ICS	Zirconium, ppm, by ICS	1042
Zr_ppm_XRF	Zirconium, ppm, by XRF	2879