Recognizing juvenile and relict lithospheric mantle beneath the North China Craton: Combined analysis of H2O, major and trace elements and Sr–Nd isotope compositions of clinopyroxenes

Hao, Yawei; Xia, Qunke; Liu, Shaochen; Feng, Min; Zhang, Yaping

doi:10.1016/j.lithos.2012.03.013

Cited by 39 publications

(41 citation statements)

References 52 publications

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“…Rare opx grains have a band at 3100 cm − 1 . The positions of the absorption bands are similar to those reported in previous studies on both natural and experimental minerals and interpreted as the vibration of structural OH (Skogby and Rossman, 1989;Skogby et al, 1990;Bell and Rossman, 1992;Ingrin and Skogby, 2000;Peslier et al, 2002;Grant et al, 2007;Li et al, 2008;Yang et al, 2008;Bonadiman et al, 2009;Gose et al, 2009;Green et al, 2010;Xia et al, 2010;Hao et al, 2011;Sundvall and Stalder, 2011). The relative absorbance of these bands varies among grains in a given sample due to variable orientation of grains with respect to the IR beam direction.…”

Section: Hydrogen Speciation and H 2 O Contentssupporting

confidence: 84%

“…Mg# values of ol and Cr# values of sp for Beishan and Fansi peridotites fall within the olivine-spinel mantle array, as shown in Fig. 2 which also include samples from Hannuoba and Yangyuan of WNCC (Xia et al, 2010;Hao et al, 2011), suggesting that different degrees of partial melting were responsible for the observed compositional variations.…”

Section: Mineral Chemistry and Thermometrymentioning

confidence: 65%

“…Equilibrium temperatures are estimated by the Ca-in-opx and the two-pyroxene geothermometers of Brey and Kohler (1990) at a pressure of 15 kbar (Table 2); they range from~850 to 1100°C and~900 to 1050°C for Beishan and Fansi samples respectively, similar to Hannuoba and Yangyuan samples of WNCC (Xia et al, 2010;Hao et al, 2011) and samples of ENCC (Xia et al, 2010).…”

Section: Mineral Chemistry and Thermometrymentioning

confidence: 90%

“…H 2 O contents of the Cenozoic lithospheric mantle beneath ENCC revealed by mantle xenoliths hosted by alkali basalts have been well studied, including the localities of Penglai, Qixia, Changle, Hebi, Nushan, Panshishan, Lianshan, Fangshan and Beiyan (Yang et al, 2008;Bonadiman et al, 2009;Xia et al, 2010;Hao et al, 2011). Still, the H 2 O content data of the Cenozoic WNCC lithospheric mantle are only reported for peridotites from Hannuoba (Aubaud et al, 2007;Yang et al, 2008) and Yangyuan .…”

Section: Introductionmentioning

confidence: 99%

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Water contents of the Cenozoic lithospheric mantle beneath the western part of the North China Craton: Peridotite xenolith constraints

et al. 2013

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Section: Hydrogen Speciation and H 2 O Contentssupporting

confidence: 84%

Section: Mineral Chemistry and Thermometrymentioning

confidence: 65%

Section: Mineral Chemistry and Thermometrymentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

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Water contents of the Cenozoic lithospheric mantle beneath the western part of the North China Craton: Peridotite xenolith constraints

et al. 2013

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“…Laboratory experiments demonstrate that the difference of hydrogen diffusivities between olivine and pyroxene (Ingrin Histograms of water contents in NAMs from craton, off-craton, oceanic lithosphere, mantle wedge and lava. References: craton (Skogby et al, 1990;Rossman, 1992a, 1992b;Kurosawa et al, 1997;Matsyuk et al, 1998;Bell and Ihinger, 2000;Bell et al, 2004b;Matsyuk and Langer, 2004;Mosenfelder et al, 2006a;Grant et al, 2007;Matveev and Stachel, 2007;Li et al, 2008;Peslier et al, 2008Peslier et al, , 2010Peslier et al, , 2012Yang et al, 2008;Bonadiman et al, 2009;Xia et al, 2010Xia et al, , 2013aSundvall and Stalder, 2011;Baptiste et al, 2012;Hao et al, 2012;Doucet et al, 2014;Li et al, 2015;Pintér et al, 2015); off-craton Rossman, 1992a, 1992b;Yu et al, 2011;Hao et al, 2014); oceanic lithosphere (Bonadiman et al, 2009;Bizimis and Peslier, 2015;Demouchy et al, 2015); mantle wedge (Kurosawa et al, 1997;Peslier et al, 2002;Peslier and Luhr, 2006); phenocrysts from lava (Skogby et al, 1990;Bell and Rossman, 1992b;Jamtveit et al, 2001;Matsyuk and Langer, 2004;Matveev et al, 2005;Koch-Müller et al, 2006;…”

Section: Intra-mineral Water Distributionmentioning

confidence: 99%

On water in nominally anhydrous minerals from mantle peridotites and magmatic rocks

Hui

Pan

2016

Sci. China Earth Sci.

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Trace amount of water associated with the lattice defects of nominally anhydrous minerals (NAMs) can be measured using Fourier transform infrared spectroscopy (FTIR) and secondary ion mass spectrometry (SIMS). Lots of data on water in NAMs from different lithologies, especially mantle peridotite xenoliths, have been published. The water distribution in olivine from peridotite xenoliths often displays a diffusion profile with high water concentration in the core and low at the rim, which indicates water loss via diffusion during the ascent of host magma. On the other hand, water is homogeneously distributed in pyroxene and its concentration is typically interpreted to represent a mantle value. The water concentration of magma in equilibrium with NAM can be estimated using specific partition coefficient, from which the water content of parental magma and the mantle source can be inferred. The accuracy of this method, however, depends on the selection of appropriate partition coefficient for the system. Using hydrogen isotope compositions and H 2 O/Ce ratios of mantle NAMs, water source regions can be traced and water heterogeneity can be mapped in the upper mantle. Water plays an important role in the stability of cratonic mantle. The water contents and vertical distribution patterns can be significantly different among different cratonic mantles, which may result from different geologic activities. However, the mantle-plume interaction may not necessarily result in significant change of water content in cratonic mantle. The estimation of the water content in the upper mantle is still largely based on geochemical models due to the limitations of data on water in mantle NAMs.Keywords Nominally anhydrous minerals, Fourier transform infrared spectroscopy, Craton stability, Water in the upper mantle, Magma ascent rate, Water in magma Citation:Hui H J, Xu Y J, Pan M E. 2016. On water in nominally anhydrous minerals from mantle peridotites and magmatic rocks.

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Regional heterogeneity in the water content of the Cenozoic lithospheric mantle of Eastern China

et al. 2016

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The major and trace elements and H2O contents of minerals in peridotite xenoliths hosted by the Cenozoic basalts in Northeast China (NEC) were evaluated using electron microprobe, laser‐ablation inductively coupled plasma–mass spectrometry and Fourier transform infrared spectroscopy, respectively. Although a potential loss of H during the xenoliths' ascent cannot be excluded for olivine, orthopyroxene (opx) and clinopyroxene (cpx) largely preserved the H2O contents of their mantle source in all of the samples, as inferred from (1) the homogenous H2O contents within single pyroxene grains and (2) the equilibrium H2O partitioning between cpx and opx. No OH was detected for pyroxenes of peridotite xenoliths from the north part of NEC (NNEC). Combined with previously published data from the North China Craton (NCC) and the South China Block (SCB), the regional heterogeneity in the water contents in the Cenozoic lithospheric mantle beneath the whole Eastern China has been revealed. The lithospheric mantle beneath the NNEC is completely dry. The “bulk” water contents of the lithospheric mantle of the south part of NEC and the NCC have similar ranges and average values, whereas those of the SCB are much higher (12–195 ppm, average 90 ± 45 ppm for whole rock). The regional variations in the H2O content of the Cenozoic lithospheric mantle of Eastern China cannot be caused by partial melting, mantle metasomatism, or variations in redox state. We propose that the lithospheric mantle beneath the different regions of Eastern China may have distinct origins and may have undergone distinct geodynamic processes.

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Recognizing juvenile and relict lithospheric mantle beneath the North China Craton: Combined analysis of H2O, major and trace elements and Sr–Nd isotope compositions of clinopyroxenes

Cited by 39 publications

References 52 publications

Water contents of the Cenozoic lithospheric mantle beneath the western part of the North China Craton: Peridotite xenolith constraints

Water contents of the Cenozoic lithospheric mantle beneath the western part of the North China Craton: Peridotite xenolith constraints

On water in nominally anhydrous minerals from mantle peridotites and magmatic rocks

Regional heterogeneity in the water content of the Cenozoic lithospheric mantle of Eastern China

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