for better understanding of tehran ground water, samples were taken randomly from 340 out of 655 deep & semi deep wells in 1993, which dug by tehran water supply and sewage engineering company. 260 water specimens were examined chemically and physically and compared with the 1993 world health organization (who) and food and agriculture organization (fao) criteria and analyzed statistically. log...

We report petrologic studies and oxygen isotope analyses of normal anomalous eucrites, termed eucrite-type achondrites. Petrologically achondrites can have compositions, vice versa. Two basaltic eucrites with compositions contain pyroxenes Fe/Mn engendered by parent body processes acting on eucrites: solid-state reduction S gas in EET 87542, during crystallization magmatic QUE 94484. Cataclasti...

The Rb-Sr whole-rock isochron, age 1636 ± 66 Ma of Mirgarani granite, is the one oldest granite dated in northwestern part Chhotanagpur Granite Gneiss Complex (CGGC). initial Sr ratio 0.715 0.012 (MSWD = 0.11), showing an S-type affinity. has intruded migmatite complex Dudhi Group and forms formation comparable to granites Bihar Mica Belt around Hazaribagh (1590 30 Ma). present studies have est...

Idanre area which is situated within the Nigerian shield affected by orogenic activities accompanied emplacement of Pan-African granitoids. This paper presents a new information on geochemical behaviour Rare Earth Elements (REEs) and High Field Strength (HFSEs) Zr-Hf Y-Ho that can explain post magmatic processes relating to origin evolution granite. Zr-Hf, Hf-(Zr/Hf) Y-Ho, (Y/Ho)-Ho variation d...

Triticale is the first man made genus hybrid of wheat and rye. The basic aim its production was to combine yield potential grain quality with disease environmental tolerance In past decades, triticale crop area has been increasing in Hungary, which climate change also contributed. produce well dry climatic conditions, so it becomes more popular among farmers. Our country one top 10 producing co...

Dehydration melting of metasupracrustal rocks at mid- to deep-crustal levels can generate water undersaturated granitic melt. In this study, we evaluate the potential ?1.89–1.88 Ga Precambrian southern Finland as source for 1.86–1.79 late-orogenic leucogranites in region, using Rhyolite-MELTS approach. Melt close composition leucogranite is produced over a range realistic pressures (5 8 kbar) a...

We investigate an outcrop of 187 Ma lacustrine pillow basalts of the Talcott Formation exposed in Meriden, Connecticut, USA, focusing on coordinated analyses of one pillow lava to characterize the aqueous history of these basalts in the Hartford Basin. This work uses a suite of multidisciplinary measurements, including hyperspectral imaging, other spectroscopic techniques, and chemical and mine...

Abstract Quartz-diorites, monzogranites and pegmatites are the main rock units in studied area. The occur as zoned pockets within with zonal arrangement: border, wall, intermediate, core zones. wall zone have enrichment of radioactive RREs-bearing minerals. K-feldspar, plagioclase quartz essential minerals, whereas uranothorite, columbite, zircon, xenotime, monazite, sphalerite pyrite accessori...