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...
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 plutonic and volcanic rocks in the...
L. 1966: K-Ar dating of plutonic and volcanic rocks in orogenie helts. In ScHAEFFER, O. A. & ZAHRINGER, J. (Eds.) Potassium-Argon Dating. Springer, Berlin Heidelberg-Gottingen.Armstrong, R. L.: K-Ar dating of plutonic and volcanic rocks in orogenic belts. In: Potassium-argon ...
Experimental calibration of the aluminum-in-hornblende geobarometer with application to Long Valley caldera (California) volcanic rocks A new geobarometer based on the Al content of igneous hornblendes in equilibrium with melt, fluid, biotite, quartz, sanidine, plagioclase, sphene, and magn... ...
Igneous petrogenesis and tectonic setting of plutonic and volcanic rocks of the Cordillera de...Igneous petrogenesis and tectonic setting of plutonic and volcanic rocks of the Cordillera de...Presents a petrologic description and petrogenetic interpretation of the plutonic and volcanic rocks of the Cordi...
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...
The Rio Capim volcanic–plutonic–sedimentary belt lies in sharp tectonic contact with Archaean rocks of the Uauá block in the northern part of the São Francisco craton. Field relationships and high-precision geochronology indicated that the Rio Capim basalts, gabbros, diorites, and dacites ...
Plutonic rocks of intermediate composition on Gran Canaria: The missing link of the bimodal volcanic rock suite. Contrib. Mineral. Petrol. 141, 430-445 (2001).Freundt-Malecha B, Schmincke H-U, Freundt A (2001) Plutonic rocks of intermediate composition on Gran Canaria: the missing link of ...
This document is part of Subvolume A1 'Light Metal Systems. Part 1: Selected Systems from Ag-Al-Cu to Al-Cu-Er' of Volume 11 'Ternary Alloy Systems - Phase Diagrams, Crystallographic and Thermodynamic Data critically evaluated by MSIT' of Landolt-Brnstein - Group IV Physical Chemistry. It...
The quantitative estimation of eruptible magma is essential to assess volcanic hazard. In case of high and frequent volcanic activity, different episodes and cycles can be observed and used to gain insights on magma residence and volcano dynamics. Here,