plutonic rock


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plutonic rock

[plü′tän·ik ′räk]
(geology)
A rock formed at considerable depth by crystallization of magma or by chemical alteration.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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(2) Ijolite refers to a series of plutonic rocks containing nepheline and 30-60% mafic minerals, generally clinopyroxene, and including titanite, apatite and sometimes andradite (Jackson, 1997).
Podlesnoite Ba[Ca.sub.2](C[O.sub.3])[.sub.2][F.sub.2]: a new mineral species from the Kirovskii mine Khibiny, Kola Peninsula, Russia
The oldest plutonic rocks in the Central plutonic belt are foliated granites that generally yield Floian to Darriwilian (Early to Middle Ordovician) U-Pb (zircon) ages (Whalen 1993; Whalen et al.
Geochronology and lithogeochemistry of granitoid rocks from the central part of the Central plutonic belt, New Brunswick, Canada: implications for Sn-W-Mo exploration
In addition, it is found that extrusive rocks (e.g., basalt and dacite) have much higher [kappa] compared to plutonic rocks; hypabyssal and pyroclastic rocks have relatively lower [kappa] (Table 2).
Petrophysical properties (density and magnetization) of rocks from the Suhbaatar-Ulaanbaatar-Dalandzadgad geophysical profile in Mongolia and their implications
Plutonic rock fragments and schist-slate fragments are present, especially towards the south and the top of the formation (AGE, BLA, SAN, ESP, VUR) (Figs.
Sand provenance and implications for paleodrainage in a rifted basin: the Tera Group (N. Spain)/Procedencia de areniscas e implicaciones en el paleodrenaje de una cuenca de rift: el Grupo Tera (N. Espana)
Geology, petrology, and geochemistry of the Neoproterozoic volcano plutonic rock association of the Indian Shield extension in Pakistan.
Petrography and major element chemistry of mafic dykes in the Nagar Parkar Igneous Complex, Tharparkar, Sindh
The intermediate plutonic rock samples, although having similar total REE to the gabbroic sample (27-33 ppm, from 4 to 18 times the chondritic abundances), have fractionated REE patterns an enrichment of the LREE compared to the HREE ([[La/Yb].sub.N] = 2.69-3.71, Fig.
The basal tectonic melange of the Cabo Ortegal Complex (NW Iberian Massif): a key unit in the suture of Pangea/La melange tectonica basal del Complejo de Cabo Ortegal (NW del Macizo Iberico): una unidad clave en la sutura de Pangea
Two leucogranite salnples have [[delta].sup.2][H.sub.WR] values of-60 and -56[per thousand], whereas values are lower for other plutonic rock types (-78 to -61[per thousand]).
Regional hydrothermal alteration and [sup.18]O-depletion of the ca. 620 Ma Huntington Mountain pluton and related rocks, Cape Breton Island, Canada
Plutonic rock geochemical and isotopic evidence for a transition from arc (ca.
The origin of mafic-ultramafic bodies within the northern Dashwoods Subzone, Newfoundland Appalachians
Major and trace elements study signify one common primary magma source composition for the plutonic rocks of the Chilas complex.
PETROLOGY OF THE CHILAS COMPLEX OF THE KOHISTAN ISLAND ARC IN THE KINER GAH AREA, CHILAS, PAKISTAN
(iii) The northern domain consists of subordinate 830 Ma old metavolcanic rocks of tholeitic and alkaline affinities, which are associated with metasediments known as the Poli series and widespread 630-660 Ma old calc-alkaline plutonic rocks known as orthogneisses, which result from a major crustal accretion episode.
New Geological and Structural Facts under the Lateritic Cover in Garga Sarali, Ndokayo (East Cameroon) Area, from Audiomagnetotellurics Soundings

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