There is an obvious differentiation between high field--strength element (HFSE) and large ion lithophile
element (LILE) (Fig.
The higher content of large ion lithophile
elements (LILEs) and LREEs in the dykes could suggest stronger interactions with the granites, diffusion of water and alkalis, etc.
Multi-elemental patterns normalized to the primitive mantle of (Sun and McDonough, 1989) (FIGURE 7A) yielded a relative enrichment of large ion lithophile
elements (LILE) such as Ba, Rb, Sr and Th and well-defined negative Nb, P, and Ti anomalies, the high normalized HREE reveals no residual garnet in the melt and therefore is more akin to shallower melting conditions.
2]>56 %, enrichment in light rare earth elements (LREE) and large lithophile
elements (LILE), depletion in heavy REE (HREE) and Y, and high La/Yb>20 and Sr/Y>40 ratios (Kohnavard, 2015).
The spider diagrams of both Deosai volcanics and the meta-volcanics of the Burji-La Formation exhibit enrichment of large ion lithophile
elements as compared to high eld strength elements while well-dened negative and positive anomalies have been observed for Nb and Sr respectively.
Their mantle-normalized pattern is smooth showing low fractionation between large ion lithophile
elements (LILE) and high field strength elements (HFSE).
They found that the large ion lithophile
and light rare earth elements, especially K, Rb, Pb, Th, U, Zr and Nb correlated positively with terrigenous components, such as mica, rutile, tourmaline and zircon and with the maturity index of a sedimentary rock, while ferromagnesian elements Fe, Ti, Mn, Se and V and small cations Na, Ca and Sr correlates positively with chemically unstable components such as volcanic lithic, epidote and feldspar.
Uranium and thorium are lithophile
elements, mostly concentrated in crystal rocks with an average Th/U ratio of 3.
An exception is a group of closely correlated lithophile
elements, most specifically Al, Si, Ti, K, Rb, and Zr (less closely correlated Mg, Zn, Cu).
The alkalic lavas are enriched in the light-REE, large-ion lithophile
(LIL), and high-field-strength (HFS) elements, but display the same middle- to heavy-REE abundances as tholeiitic lavas.
2000) The color change after healing at 380[degrees]C of tanzanite crystals from Merelani Arusha (Tanzania): Preliminary EMPA-SIMS-LAM-ICP-MS study on major, trace, tight lithophile
and volatile elements.
2 show increasing ionic potential from left to right, with K, Na, Rb, Ba, and Sr representing the large ion lithophile
elements (LILE: Z/r < 2), and La-Yb the mostly trivalent lanthanoid (rare earth) elements (which can be grouped with Y which behaves like Yb).