Experimental Studies of Igneous Rock Series Central Sierra Nevada Batholith, California

Piwinskii, A.J.

doi:10.1086/627359

Cited by 188 publications

(51 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We consider submagmatic deformation as the ductile strain occurred in the presence of proportion of residual melt below the necessary to allow magmatic flow (Paterson et al, 1989). These observations are in agreement with temperature estimates between 620º and 690ºC that are close to slightly below solidus for intermediate compositions (Piwinskii, 1968;Huang and Wyllie, 1986;Schmidt, 1993).…”

Section: Emplacement Under Transtension In Cmdssupporting

confidence: 80%

Transtension y transpresion del Jurasico Medio-Superior al Cretacico Inferior durante la construccion del arco magmatico en Chile central: evidencia a partir de enjambres de diques maficos.

Creixell¹,

Parada²,

Morata³

et al. 2011

Andgeo

View full text Add to dashboard Cite

AbstrACt. The Middle-Late Jurassic mafic dike swarms of central Chile between 33º and 33º45'S register the tectonic activity of the contemporaneous arc represented by the Coastal batholith. These dike swarms evidence alternate episodes of transtension and transpression across NW-striking structures, which controlled the construction of the magmatic arc. The Middle-Upper Jurassic and Lower Cretaceous mafic dike swarms in the Coastal range of central Chile has been studied through field observations, geochronology and AMS (anisotropy of magnetic susceptibility) to document the tectonic and magmatic evolution of the Jurassic-Cretaceous arc at this latitude. Middle to Upper Jurassic dike swarms (Concón and Cartagena mafic dike swarms) were emplaced between 163 and 157 Ma, along NW-SE to WNW-ESE-striking host fractures, registering a first stage of magma emplacement under sinistral transtension. During this stage, dikes acquired a fabric characterized by magnetic foliation clockwise oblique to dike trend and gently plunging lineations. This stage was followed rapidly by dike emplacement under sinistral transpression, with associated steeply plunging lineations in the dikes, reverse shear zones in the country rocks and local occurrence of horizontal mafic dikes. On the other hand, the Lower Cretaceous El Tabo Dike Swarm was emplaced along tensile fractures that do not register shear displacements along their walls. These dikes were emplaced at shallower crustal levels along tensile fractures.Within each dike swarm, differences in the tectonic style of emplacement correlates with changes in the geochemical composition of the dikes, suggesting a strong coupling between tectonics and nature of magma supplies in the arc. Finally, the current results show that the Mesozoic evolution of the Coastal Batholith of central Chile occurred in several stages of deformation and not under a simple scenario of extensional tectonics. This magmatism and deformation were strongly controlled by NW-to WNW-striking fractures. These structures are spatially correlated with regional-scale Cenozoic lineaments that are oblique to the orientation of the Andean orogen. We suggest that these lineaments are features inherited at least from Jurassic times. Middle-late Jurassic to early cretaceous transtension and transpression during arc building in central chile... rEsuMEn. transtensión y transpresión del Jurásico Medio-superior al Cretácico Inferior durante la construcción del arco magmático en Chile central: evidencia a partir de enjambres de diques máficos. Los enjambres de diques máficos del Jurásico Medio-Superior de Chile central entre los 33º y 33º45'S registran la actividad tectónica del arco contemporáneo representado por el batolito costero. Estos enjambres de diques evidencian episodios alternados de transtensión y transpresión a lo largo de estructuras de rumbo NW, las cuales controlaron la construcción del arco magmático. Los enjambres de diques máficos del Jurásico Medio-Superior y del Cretácico Inferior de la Cordillera de la Costa...

show abstract

Section: Emplacement Under Transtension In Cmdssupporting

confidence: 80%

Transtension y transpresion del Jurasico Medio-Superior al Cretacico Inferior durante la construccion del arco magmatico en Chile central: evidencia a partir de enjambres de diques maficos.

Creixell¹,

Parada²,

Morata³

et al. 2011

Andgeo

View full text Add to dashboard Cite

show abstract

“…This is relevant to the magmatic-hydrothermal environment wherein melts commonly undergo volatile exsolution across a depth range of several kilometers, corresponding to lithostatic pressures between ϳ50 and ϳ150 MPa (e.g., Audétat and Pettke, 2003). Within this pressure range the solidus temperature for wet granite ranges from ϳ650°C to ϳ700 (Tuttle and Bowen, 1958;Luth et al, 1964;von Platten, 1965;Piwinskii, 1968;Merrill et al, 1970;Robertson and Wyllie, 1971). However, magmatic fluid exsolution and, therefore, the scavenging of iron by this fluid start at super-solidus temperatures as a result of decreasing lithostatic pressure (defined as first boiling) and/or second boiling.…”

mentioning

confidence: 99%

Magnetite solubility and iron transport in magmatic-hydrothermal environments

Simon

Pettke

Candela

et al. 2004

Geochimica et Cosmochimica Acta

163

View full text Add to dashboard Cite

“…Small open circle, S-type Koetong Suite granitic rocks (Price, 1983); small solid circle, I-type and W-type Kitakami granitic rocks (Kanisawa et al, 1984); small square, A-type igneous rocks from Cape Ashizuri (Murakami et al, 1983;Murakami and Masuda, 1984); solid square, Cenozoic volcanic rocks in Northeast Japan (Ishikawa et al, 1981 ;Yoshida et al, 1983). Piwinskii (1968Piwinskii ( , 1973a; 2), Piwinskii (1973bPiwinskii ( , 1974Piwinskii ( , 1975; 3), Boettcher and Wyllie (1968), Stern and Wyllie (1981); 4), Gibbon and Wyllie (1969); 5), Oba (1980); 6), Wyllie (1968, 1970); 7), Wyllie (1973, 1981); 8), Yamamoto (1977 …”

mentioning

confidence: 99%

Trace elements behavior in Miocene I-type and S-type granitic rocks in the Ohmine district, central Kii peninsula.

Murata¹,

Yoshida²

1985

J. Japan. Assoc. Min. Petr. Econ. Geol.

View full text Add to dashboard Cite

Experimental Studies of Igneous Rock Series Central Sierra Nevada Batholith, California

Cited by 188 publications

References 21 publications

Transtension y transpresion del Jurasico Medio-Superior al Cretacico Inferior durante la construccion del arco magmatico en Chile central: evidencia a partir de enjambres de diques maficos.

Transtension y transpresion del Jurasico Medio-Superior al Cretacico Inferior durante la construccion del arco magmatico en Chile central: evidencia a partir de enjambres de diques maficos.

Magnetite solubility and iron transport in magmatic-hydrothermal environments

Trace elements behavior in Miocene I-type and S-type granitic rocks in the Ohmine district, central Kii peninsula.

Contact Info

Product

Resources

About