Abstract A comprehensive mineralogical, geochemical and isotopic review of six ultramafic-alkaline-carbonatite magmatic intrusions the Shillong Plateau (Sung Valley, Jasra, Swangkre-Rongjeng, Mawpyut) Mikir Hills (Samchampi-Samteran Barpung) is presented here, using published data. These emplaced ca. 115–102 Ma ago, thus are significantly younger than tholeiitic flood basalts erupted in Rajmaha...

Brownfield areas are important targets of exploration; however, the extensive drilling present in these has not fully exploited their prospective potential. The appropriate use drill hole cores can play an role deep exploration. We a case study iron oxide-copper-gold (IOCG) Furnas Southeast deposit, located Carajás Mineral Province, Brazil. This deposit disseminated chalcopyrite, bornite and go...

, ABSTRACT Metabasaltic rocks in the Klamath Mountains of California with 'komatiitic' major element concentrations were investigated in order to elucidate the origin of the magnesian signature. Trace-element concentrations preserve relict igneous trends and suggest that the rocks are not komatiitic basalts, but im~at~re arc rocks and within-plate alkalic lavas. Correlation of 'excess' MgO with...

Regaining the agricultural potential of sodic soils in the Indo-Gangetic plains necessitates the development of suitable salt tolerant rice varieties to provide an entry for other affordable agronomic and soil manipulation measures. Thus selection of high yielding rice varieties across a range of sodic soils is central. Evaluation of breeding lines through on-station and on-farm farmers' partic...

Triassic eclogite and blueschist facies rocks occur as a thrust sheet, 25-km long and over 2-km thick, in an Eocene fold-andthrust belt in northwest Turkey along the İzmir–Ankara suture. The thrust sheet consists mainly of metabasites with minor marble, phyllite and metachert, and rare lenses of serpentinite. The common blueschist facies mineral assemblage in the metabasites is sodic amphibole ...

PURPOSE To investigate clinical and histologically the bone repair in treated animals with calcitonin and sodic diclofenac. METHODS Ninety-six femoral defects were created in forty-eight animals distributed in four groups (n=24): either left untreated, treated with the sodic diclofenac or calcitonin or both. Follow-up was 7, 14 and 21 days. Histological sections stained by haematoxylin-eosin ...

Abstract Potassium-rich adakitic rocks have been used to infer high-pressure (HP) melting of thickened or foundered mafic lower crust in post-collisional settings. However, their origin remains debated because potassic rather than sodic nature. We address this debate by investigating the source Oligocene high-K granites southern Tibet, which are widely attributed overthickened crust. Our new da...

a long-term field experiment was conducted for 7 years to evaluate the effect of different amendments to mitigate the adverse effect of saline-sodic water in a calcareous soil under cotton-wheat cropping system. the pooled results over 7 years revealed that the application of saline-sodic water decreased the mean cotton-seed yield by 20.7% as compared to good quality canal water. however, wheat...

Experiments were conducted to determine whether the rhyolites and basalts of the intraplate silicasaturated potassic suites could be genetically related through crystallization. Extreme crystallization (96–97%) of a high-MgO (10.62 wt%) olivine tholeiite from the Snake River Plain with an initial bulk water content of 0.4 wt% at a mid-crustal pressure of 4.3 kbar generated potassic rhyolitic li...