Late Archaean crust-mantle interactions: geochemistry of LREE-enriched mantle derived magmas. Example of the Closepet batholith, southern India
نویسندگان
چکیده
منابع مشابه
Crust - Mantle Differentiation Copper Systematics in Arc Magmas
clicking here. colleagues, clients, or customers by , you can order high-quality copies for your If you wish to distribute this article to others here. following the guidelines can be obtained by Permission to republish or repurpose articles or portions of articles ): April 5, 2012 www.sciencemag.org (this information is current as of The following resources related to this article are availa...
متن کاملReactive Melt Transport in the Mantle and Geochemical Signatures of Mantle-derived Magmas
predicted effects, but more complete sample suites yielding detailed Modeling of equilibrium reactive melt transport in the mantle, temporal–compositional variations of clearly cogenetic lavas are including the effects of mineralogic reactions and changes in porosity needed to test the petrogenetic significance of reactive melt transport in the solid matrix, provides a series of robust predicti...
متن کاملSignatures of subduction-related hydrous magmas from the geochemistry of the upper mantle rocks of the northern Semail ophiolite
Concentrations of the incompatible trace elements and REEs in the upper mantle rocks of the Northern Semail ophiolite are very low, as typical in the residua of partial melting and in the early products of a fractionating magma. However, their geochemical characteristics have shown indications of hydrous magmas that more likely related to a subduction environment. Melt extraction can play a cru...
متن کاملTapping of Magmas from Ubiquitous Mantle Heterogeneities' An Alternative to Mantle Plumes?
Long-lived heterogeneities in the mantle are indicated by Nd-Sr-Pb isotopic systematics. Explanations for these variations have invoked either distinct layers in the earth that are preferentially tapped by some source regions (such as plumes rising from the base of the mantle) or small-scale heterogeneities which are ubiquitously distributed through the mantle and tapped differentially in vario...
متن کاملClockwise Rotation of Upper-Mantle Strain and Crust-Mantle Coupling Beneath the Eastern Syntaxis Tibet
AB: We performed shear-wave splitting of core phases using a subset of 33 selected events within an array composed of 48 broadband stations that spans a 650x350 km area crossing the Lhasa and the southern part of the Qiangtang terranes. Our results reveal the presence of azimuthal anisotropy with small-to-moderate delay times (0.5-1.4s). The consistency of the splitting parameters with respect ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Contributions to Mineralogy and Petrology
سال: 1995
ISSN: 0010-7999,1432-0967
DOI: 10.1007/bf00307290