Overall, the analysis shows little evidence for a complementary relationship between typical volcanic and plutonic rocks in which plutons represent unerupted cumulate residues from differentiating magma systems; rather, pluton compositions are dominantly equivalent to those of volcanic rocks. However, subtle...
"deep rocks," which often form the massive roots of modern mountain ranges. The processes that produce plutons and volcanoes make the rocks look different, and they also end up producing characteristic mineralogical differences. That the rocks look different means that plutonic and volcanic rocks ...
& Persson, P.-O., 1998: U-Pb ages of plutonic and volcanic rocks in the Svecofennian Bothnian Basin, central Sweden, and their implications for the Palaeoproterozoic evolution of the Basin. GFF 120, 357-363.Lundqvist, Th., Vaasjoki, M. & Persson, P.-O., 1998. U-Pb ages of ...
1966. K-Ar dating of plutonic and volcanic rocks in orogenic belts. In Potassium-Argon Dating, ed. OA Schaeffer, J Za¨hringer, pp. 117-33. Berlin: Springer-VerlagARMSTRONG, R. L. 1966: K-Ar dating of plutonic and volcanic rocks in orogenie helts. In ScHAEFFER, O. A. & ZAHRINGER...
How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-) 'Canceled' or 'cancelled'? Why is '-ed' sometimes pronounced at the end of a word? What's the difference between 'fascism' and 'socialism'? More Commonly Misspelled Words ...
D. Feigenson, Igneous petrogenesis and tectonic setting of plutonic and volcanic rocks of the Cordillera de Talamanca, Costa Rica-Panama, Central American Arc, Am. J. Sci., 295, 875 - 919, 1995.Drummond, M.S., Bordelon, M., de Boer, J.Z., Defant, M.J., Bellon, H., Feigenson...
conditions of crystallization, and the age characteristics of subvolcanic felsic rocks that are spatially associated with rare-metal granite massifs in the ore units of Transbaikalia (Sherlovaya Gora, Khangilay, Bukuka, Belukha, and Shumilovka) give grounds for defining cogenetic volcanoplutonic ass...
Heat generation of plutonic rocks and continental heat flow provinces The Cretaceous volcanic-plutonic province of the central Queensland (Australia) coast—a rift related ‘calc-alkaline’ province Prediction of some weathering trends of plutonic and volcanic rocks based on thermodynamic and kinetic consi...
These rocks imply the presence of an already differentiated felsic crust at >3.5 Ga, which has Nd and Hf model ages indicating mantle extraction ages extending back to the Eoarchaean. The combined record of plutonic and volcanic rocks of the Kaapvaal craton provides a more complex scenario than...
Compared with volcanic rocks, plutonic rocks have cooled more slowly, under greater pressure and in the more protracted presence of volatiles. All three factors combine to influence the structure, texture and mineralogy of plutonic rocks but it is usuall