Abstract Two subvertical gabbroic dikes with widths of ~ 350 m (East-Muren) and ≥ 500 (West-Muren) crosscut continental flood basalts in the Antarctic extension 180 Ma Karoo large igneous province (LIP) Vestfjella, western Dronning Maud Land. The exhibit unusual geochemical profiles; most significantly, initial (at Ma) ε Nd values increase from dike interiors towards hornfelsed wallrock (from −...

Abstract The mantle–crust boundary beneath oceanic spreading centres is a major chemical and thermal interface on Earth. Observations in ophiolites reveal that it underlined by dunitic transition zone (DTZ) can reach few hundred meters thickness host abundant chromitite ore bodies. dunites have been deciphered as essentially mantle-derived most ophiolitic massifs; is, reactional residues of int...

nowadays, potato is one of the most important foods in the people¢s diet. daily consumption of potato is increasing in iran significantly; therefore the study and research on this product is essential. in order to the components of potato, three varieties of potato (diamant, aola and draga) were chosen from thirty six fields in north of khorasan province. each variety was harvested from 12 fiel...

nowadays, organic fertilizers play an important role in agriculture. they are progressively substituting chemical fertilizers to prevent their harmful impact on human health and the environment. they provide high yield, better quality products and a shorter period of harvesting crops. in this study, the mineral elements: primary macronutrient (n, po3- and k+), secondary macronutrient: (ca2+, mg...

Abstract The growth of continental crust through melt extraction from the mantle is a critical component chemical evolution Earth and development plate tectonics. However, mechanisms involved remain debated. Here, we conduct petrological geochemical analyses on large (up to 5000 km 2 ) granitoid body in Arabian-Nubian shield near El-Shadli, Egypt. We identify these rocks as largest known plagio...

a total of 90 species, belonging to 29 genera and 15 families, observed from an urban wetland of meghalaya is the species-rich rotifera assemblage known till date from any sub-tropical ecosystem of the indian sub-region. total richness (s) merits biodiversity value as ~56.0, ~ 38.0 and ~23.0 % of the species recorded from meghalaya, northeast india (nei) and india, respectively while several ro...

b a ckground: previous studies have suggested that sex may be a factor influencing basal metabolic rate (bmr) in adults and school age children. however, few data are available about the effects of sex on bmr in pre-school children. in the present study, we investigated whether sex differences contribute to variations in bmr in pre-school age children. m et h o ds : measurements were made on th...