, the sediments are overwhelmingly dominated by quartz followed by calcite.
Petrographic and geochemical details suggest that the Tredian sandstone ranges from sub-feldspathic arenite to feldspathic arenite and hence is mineralogically
The formation has been sampled and mineralogically
analyzed from the Klaipeda well 1I and several nearby wells.
Talc was histologically observed and mineralogically
identified in contralateral lung to the site of talc pleurodesis, supporting the notion that talc instillation may circulate remote from the pleural space.
As shown in Figure 1, AFt phases are chemically and mineralogically
complex, in which columns of [Ca.sub.6]Al[(OH).sub.6]*24[H.sub.2]O are lines of Al[(OH).sub.6.sup.3-] octahedrally bonded with three calcium polyhedrons, and each calcium polyhedron is with O[H.sup.-] and four water molecules, which presents an orientational column structure on the whole.
This chemical composition corresponds mineralogically
to the transformation of C-S-H to M-S-H, and other mineral phases present (Figure 8) that due to the chemical composition, it can be concluded that gypsum is formed (CaS[O.sub.4]) which for graphic effects will be abbreviated as CS .
"That means your rare earths are tied up mineralogically
with thorium and uranium," Kennedy said.
Altogether 385 samples from 10 geochemically and mineralogically
studied drill cores were used for the present description.
These rocks are mineralogically
composed of amphibole (actinolite and hornblende), quartz, garnet, clinozoisite, plagioclase, epidote, titanite and rutile.
brick differs mineralogically
from the San Pantaleo clays, suggesting
The salts deposited by the lake brine were mineralogically
identified by XRD analysis and include not only calcite and dolomite, but also trona ([Na.sub.2]C[O.sub.3] x NaHC[O.sub.3] x 2[H.sub.2]O), burkeite ([Na.sub.2]C[O.sub.3] x 2[Na.sub.2]S[O.sub.4]), and halite (NaCl), thus confirming the mineralogical similarity between these deposits and those from Wadi Natron in Egypt.
The experiment was carried out in a screened greenhouse at the Center of Agricultural Sciences of the Federal University of Paraiba, using samples of six soils from the Paraiba state, classified according to EMBRAPA (2006) as Regolithic Neosol (RR), Grey Argisol (PAC), Haplic Luvisol (TX), RedYellow Argisol (PVA), Dystrophic Red Argisol (PVd) and Haplic Vertisol (VX), which were chemically, physically and mineralogically
characterized (Table 1).