in Central Tibet: an example of post-collision magmatism.
This hiatus, delineated radiometrically by the age of the youngest suprasubduction-zone related volcanism (432 [+ or -] 2 Ma) and oldest non-arc plutonism
(428 [+ or -] 1 Ma) constrains the timing of the closure of the Acadian Seaway and collision of Avalonia with the Ganderian margin of composite Laurentia to the mid-Silurian.
Crystallography of 228 244 32 Early geologic studies Minerals including a reprint of Maclure's 1818 geologic map of the United States, Werner's proposed geologic history, Hutton's concept of Plutonism
We present detailed whole-rock chemical and Sr-Nd-Pb isotopic data of the MMEs and host granitoids from the HP, and use these data to constrain in granitic plutonism
Early Mesozoic plutonism
of the Cordillera de la Costa (34[degrees]-37[degrees]S), Chile: constraints on the onset of the Andean orogeny.
A low density was used in the Central System upper crust because of the abundance of granitic lithologies as a result of the extensive Variscan plutonism
, while the density of Cenozoic sediments was averaged from Gomez-Ortiz et al.
and metamorphism in a latest Oligocene metamorphic core complex in northwest Turkey.
2006) Granitic batholiths: from pervasive and continuous melting in the lower crust to discontinuous and spaced plutonism
in the upper crust.
1999, Late Paleozoic-Early Mesozoic plutonism
and related rifting in the Eastern Cordillera of Peru: Gottingen, 4th International Symposium on Andean Geo dynamics, ORSTROM Collection Colloques et Seminaires, p.
The simple fact that he was dependent for his living on the practical applications of geology--on drainage and surveying and the holding back of the sea--meant that he was wholly unsuitable to mingle with men who liked to debate in contented languor over the competing virtues of Neptunism and Plutonism
Topics include: Plutonism
versus Neptunism, the sanukitoid series, the geochemistry of Archaean plagioclase-rich granites as a marker of source enrichment and depth of melting, chemical structure in granitic magmas, and more.
Rocks in this belt underwent several different cycles of tectonism, as well as extensive metamorphism, plutonism
, folding and faulting, with thrust-faulting playing a particularly important role in the localization of primary gemstone deposits.