SkyeAFM             package:compositions             R Documentation

_A_F_M _c_o_m_p_o_s_i_t_i_o_n_s _o_f _2_3 _a_p_h_y_r_i_c _S_k_y_e _l_a_v_a_s

_D_e_s_c_r_i_p_t_i_o_n:

     AFM compositions of 23 aphyric Skye lavas. AFM diagrams formed
     from the relative proportions of A: alkali or Na2O + K2O, F:
     Fe2O3, and M: MgO,  are common in geochemistry.

_U_s_a_g_e:

     data(SkyeAFM)

_D_e_t_a_i_l_s:

     AFM compositions of 23 aphyric Skye lavas. AFM diagrams formed
     from the relative proportions of tive proportions of A: alkali or
     Na2O + K2O, F: Fe2O3, and M: MgO. Adapted from Thompson, Esson and
     Duncan: Major element chemical variations  in the Eocene lavas of
     the Isle of Skye, Scotland. All row percentage sums to 100.

_S_o_u_r_c_e:

     Aitchison: CODA microcomputer statistical package, 1986, the file
     name SKYEAFM.DAT, here included under the GNU Public Library
     Licence Version 2 or newer.

_R_e_f_e_r_e_n_c_e_s:

     Aitchison, J. (1986) The Statistical Analysis of Compositional
     Data, (Data 6) pp12.

     Thompson, Esson and Duncan: Major element chemical variations  in
     the Eocene lavas of the Isle of Skye, Scotland. 1972, J.Petrology,
     13, 219-235.

_S_e_e _A_l_s_o:

     'Skye'

