The frontier evolution and emerging trends of hydrological connectivity in river systems: a scientometric review

Li, Bowen; Yang, Zhifeng; Cai, Yanpeng; Li, Bo

doi:10.1007/s11707-020-0852-y

Cited by 8 publications

(2 citation statements)

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“…Geophysics and fluid inclusion studies have already confirmed the existence of fluids in the deep crust, especially in the subduction zones. These fluids are mainly dominated by H 2 O-CO 2 compounds and may also include varying quantities of halogens, alkalis, and dissolved silicates [4,22,47,[86][87][88][89][90][91].…”

Section: Fluid-assisted Partial Meltingmentioning

confidence: 99%

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The Role of Fluids in Melting the Continental Crust and Generating Granitoids: An Overview

Ding

Liu

2022

Geosciences

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Granite is a distinctive constituent part of the continental crust on Earth, the formation and evolution of which have long been hot research topics. In this paper, we reviewed the partial melting processes of crustal rocks without or with fluid assistance and summarized the role of fluids and volatiles involved in the formation of granitic melts. As a conventional model, granitoids were thought to be derived from the dehydration melting of hydrous minerals in crustal basement metamorphic rocks in the absence of external fluids. However, the external-fluid-assisted melting of crustal metamorphic rocks has recently been proposed to produce granitoids as extensive fluids could be active in the deep continental crust, especially in the subduction zones. It has been demonstrated experimentally that H2O plays a crucial role in the partial melting of crustal rocks, in which H2O can (1) significantly lower the solidus temperature of the melted rocks to facilitate partial melting; (2) affect the melting reaction process, mineral stability, and the composition of melt; and (3) help the melt to separate more easily from the source area and aggregate to form a large-scale magma chamber. More importantly, dissolved volatiles and salts in the crustal fluids could also lower the solidus temperature of rocks, affect the partitioning behaviors of trace elements between minerals and melts, and facilitate the formation of some distinctive granitoids (e.g., B-rich, F-rich, and high-K granitoids). Furthermore, various volatiles dissolved in fluids could result in elemental or isotopic fractionation as well as the diversity of mineralization during fluid-assisted melting. In-depth studies regarding the fluid-assisted partial melting of crustal rocks will facilitate a more comprehensive understanding of melting of the Earth’s crust, thus providing strong theoretical constraints on the genesis and mineralization of granitoids as well as the formation and evolution of the continental crust.

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Section: Fluid-assisted Partial Meltingmentioning

confidence: 99%

“…Fluids usually contain large quantities of salts and volatile components [86][87][88][89][90]98], which not only have significant influences on crustal melting but are also closely associated with rare metal mineralization.…”

Section: Effect Of Dissolved Components In Fluidsmentioning

confidence: 99%