• Is there a change in the groundwater flow system? If it is the case, could the change have been originated in the dammed water, after the construction and filling of the Yacyreta dykes (dam), given that the period when the increases were registered coincides with the closing of the main branch of the Parana River and the utilization of the derivation channel next to the Northern border of the...

An introduction to the Bouguer anomaly map of Finland is presented. Anomaly sources from surface to upper mantle are discussed both qualitatively and quantitatively. Related density variations are reviewed. The article is based on gravity data from the Finnish Geodetic Institute supplemented by petrophysical and gravity data from the Geological Survey of Finland. The Finnish Geodetic Institute ...

The major and trace element characteristics of the clinopyroxene from two generations dykes, dolerite olivine dykes Western Dharwar Craton were investigated by using electron microprobe LA–ICPMS. in show a compositional zoning with Mg# decreasing core to rim (85 51) Cr2O3 contents decrease towards rim. rare earth (REE) pattern shows lower concentrations REEs compared dolerites are devoid compos...

Abstract The Tikar plain is located on the Cameroon Central Shear Zone. It also part of North Equatorial Pan-African Belt. formed granitoids intruded in places by mafic and intermediate dykes. dykes are essentially banded gabbros composed plagioclases, pyroxenes, amphiboles, biotites opaques. Their textures range from porphyroblastic to porphyritic. monzonites monzodiorites characterized, respe...