Kuandian Huangyishan Basalt
Kuandian Volcanic Centre, Kuandian County, Dandong, …
Kuandian Volcanic Centre, Kuandian County, Dandong, Liaoning, China :
Elemental and Sr–Nd–Pb isotopic geochemistry of
Volcanic rocks obtained from boreholes through the paleo-weathered crust of the Junggar basin in the southern belt of the CAOB (see Fig. 1 A) offer an ideal opportunity to probe the nature of the basement beneath the basin. In this paper, elemental and Sr–Nd–Pb isotopic geochemistry and zircon Pb–Pb ages of drill core samples are used to investigate the …
(PDF) Major element, REE, and Pb, Nd and Sr …
Geochemical characteristics of major element and trace element show that these basaltic rocks belong to alkali basalt magma series, and are similar to OIB-type basalt. ... One of the m a j o r volcanic cones in K u a n d i a n, called …
REE and Sr, Nd, Pb isotopic geochemistry of Huangyishan Basalt
REE and Sr, Nd, Pb isotopic geochemistry of Huangyishan Basalt, Kuandian, Liaoning, Northeast China Xie Guanghong; Wang Junwen; Wei Ke jian; Liu Cong Qiang. Scientia Sinica, Series B Chemical, Biological, Agricultural, Medical and Earth Sciences = Chung-Kuo K'o Hsueh Yuan, Chu Pan 33(6): 749-756 1990. Accession: 019836044.
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REE and Sr, Nd, Pb isotopic geochemistry of Huangyishan basalt, Kuandian, Liaoning, Northeast China Pagination. Current page 1; Page 2; Page 3; Page 4; Page 5; Page 6; Page 7; Page 8; Page 9; Next page ›› Last page Last » Back to Top. Science Science Explorer; Mission Areas ...
Pyroxenite from Kuandian Volcanic Centre, Kuandian County, …
Isotope and trace-element geochemistry of alkali basalts and associated megacrysts from the Huangyishan volcano, Kuandian, Liaoning, NE China. Chemical geology, 97(3-4), 219-231. Data
Major element compositions and rare-earth element …
Major element compositions and rare-earth element (REE) and transition element (Ni, Cr and V) abundances have been determined on 44 basalt samples from eastern China. These basalts have SiO2 contents ranging from 38.63 to 55.24 (wt. %), and Na2O+K2O from 3.1 to 9.4 (wt. %). Ni and Cr abundances are largely variable, respectively falling in ranges 60–605 and 78–1150 …
Tectonic environments of Cenozoic volcanic rocks in China …
Extensive volcanism is one of the important features of Cenozoic geology in China. Based on temporal-spatial distribution, the volcanism was associated with three major different geological settings: 1) the continental rift basalts in Northeast and North China; 2) the tension-fault basalts on the continental margins of Southeast China; and 3) the collision-zone high-K volcanics in the …
Fertile upper mantle peridotite xenoliths indicate no …
Continental mantle roots may preserve the evidence of the mantle's geochemical evolution over hundreds of millions of years, according to the study of mantle xenoliths preserved in basalts from ...
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Isotope and trace-element geochemistry of alkali basalts and …
Isotope and trace-element geochemistry of alkali basalts and associated megacrysts from the Huangyishan volcano, Kuandian, Liaoning, NE China Authors=LIU Cong-Qiang, MASUDA …
Isotope and trace-element geochemistry of alkali basalts and …
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Kuandian Huangyishan Basalt
Helium and argon isotopic composition of cenozoic alkali … Liu Congqiang, Xie Guanghong, Wei Kejian, and M. Tatsumoto, 1993, Isotope and rare-element geochemistry of the Huangyishan basalt in Kuandian, Liaoning Province, China [J]: Acta Petrologica Sinica, v. 9, p. 9–19 (in Chinese with English abstract). ... 1989, Study on REE and Sr, Nd, Pb isotope compositions of …
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Helium and argon isotopic composition of cenozoic alkali …
The noble gas isotopic composition and content data of 2 alkali basalts, 3 lherzolite xenoliths and one clinopyroxene megacryst from the Kuandian region have confirmed the occurrence of a ...
In-situ trace elements and Li and Sr isotopes in peridotite …
The variations in the Li contents and isotopic compositions of major minerals in the Kuandian peridotite xenoliths encode both the melt/fluid metasomatism and the cooling process. The Li contents in the Cpx (up to 34.8 ppm) and orthopyroxenes (Opx) (up to 28.0 ppm) are typically higher than those in the coexisting olivines (Ol) (< 9.19 ppm), suggesting silicate melt …
Geochemical insights into the role of metasomatic …
Experimental petrology suggested the role of hornblendite in generating alkali basalt. This mechanism is confirmed by an integrated study of major-trace elements and radiogenic isotopes for Mesozoic alkali basalts from the Qinling orogen in China.
Titanium-bearing Augite: Mineral information, data and …
25fac1fc-740d-4d19-bdbb-1b2bf7fcf0bb (as Titanium-bearing Augite) 7dea6009-a086-4aaf-bd49-c1d2b441a54e (as Augite)
Nd–Sr isotopic and REE geochemical compositions of Late Quaternary
Among desert–loess transitional zones throughout northern China, the transitional zone between the Ordos Desert and the Loess Plateau is the most representative because of the direct contact of the desert with the loess (Jin et al., 2001).The Salawusu River Valley is a main component of this transitional zone (Fig. 1).Thick deposits with multiple facies have been …
REE and Sr, Nd, Pb isotopic geochemistry of Huangyishan basalt
In the light of major element geochemistry, mineral chemistry and REE and isotopic data, the small but apparent isotopic differences between the Cenozoic volcanic rocks east and west of the Tancheng-Lujiang fault are believed to be caused by the mixing and metasomatism of crustal and mantle material in tho mantle source region in response to Pacific plate subduction. The …
He, Sr and Nd isotopes of mantle-derived xenoliths in volcanic rocks …
Huangyishan volcano is the largest of 20 volcanoes in the Kuandian volcanic province covering an area of 35×15 km. It erupted in the Holocene (0.274 Ma) and is composed of five main lava flows (Xie et al., 1990).Except that most of the xenoliths in basalts are spinel lherzolite, many different types of megacrysts (olivine, clinopyroxene, etc.) are also occurred in …
Petrochemistry and Sr, Pb and Nd isotopic geochemistry of …
The Kuandian amphibolite and granite give an imprecise 1.9±0.4 Ga (all errors are 2σ) Rb-Sr "errorchron" with (87 Sr / 86 Sr) o = 0.711 ± 0.006, a 2.11 ± 0.06 Ga Pb Pb isochron with a first-stage growth μ= 8.43, and a 2.31 ± 0.10 Ga SmNd isochron with (143 Nd / 144 Nd) o =0.50970±0.00009 or ϵ nd (T) =1 ± 1. Nd-depleted mantle model dates (TDM) of amphibolite …
Major element, REE, and Pb, Nd and Sr isotopic
One of the major volcanic cones in Kuandian, called Huangyishan, is a composite volcano composed of lavas in the lower strata and volcaniclastic rocks in the upper strata. The …
Almandine megacrysts from Yingfengling Cenozoic basalt …
This parental magma was generated by more than 60% of crystallization fractionation of clinopyroxene, garnet, plagioclase and ilmenite from quartz tholeiitic magma. It has not erupted to the surface, but stayed at the upper mantle and formed the megacrystic cumulate. Megacrysts and their host basalt are in disequilibrium.
Isotope and trace-element geochemistry of alkali basalts and …
Isotope and trace-element geochemistry of alkali basalts and associated megacrysts from the Huangyishan volcano, Kuandian, Liaoning, NE China
Geochemistry of Cenozoic basalts and mantle xenoliths in …
Fresh basalt samples were cut and cleaned for major and trace elements analysis. Major elements plus Rb, Sr and Zr were analyzed by X-ray fluorescence method (XRF). ... Huangyishan (HY) in the Kuandian (KD) volcanic field, and LG-DLW-1 means fieldwork stop 1, Dalongwan (DLW) in the Longgang (LG) volcanic field. In summary, care was taken during ...
Major element, REE, and Pb, Nd and Sr isotopic …
Major- and rare-earth-element (REE) concentrations and U sbnd Th sbnd Pb, Sm sbnd Nd, and Rb sbnd Sr isotope systematics are reported for Cenozoic volcanic rocks from northeastern and eastern China. These volcanic rocks, characteristically lacking the calc-alkaline suite of orogenic belts, were emplaced in a rift system which formed in response to the subduction of the …
Geochemical Records of Mantle Processes in Mantle …
Abstract Rare earth element (REE) contents, and Sr and Nd isotopic compositions were measured for three suites of mantle xenoliths from the Kuandian, Hannuoba and Huinan volcanoes in the north of the Sino-Korean Platform. From the correlations of Yb contents with Al/Si and Ca/Si ratios, the peridotites are considered to be the residues of partial melting of the …
Isotope and trace-element geochemistry of alkali basalts and …
Trace-element abundances and Sr, Nd isotopic compositions have been measured on three megacrysts of clinopyroxene, three of garnet and one of amphibole, as well as their …
REE and Sr, Nd, Pb isotopic geochemistry of Huangyishan …
In the light of major element geochemistry, mineral chemistry and REE and isotopic data, the small but apparent isotopic differences between the Cenozoic volcanic rocks east and west of …
Origin of gem-quality megacrysts in the Cenozoic alkali …
Multiple exsolutions in a rare clinopyroxene megacryst from the Hannuoba basalt, North China: Implications for subducted slab-related crustal thickening and recycling. Lithos (2013) ... Isotope and trace-element geochemistry of alkali basalts and associated megacrysts from the Huangyishan volcano, Kuandian, Liaoning, NE China. Chem. Geol. (1992)
Major element, REE, and Pb, Nd and Sr isotopic …
Major- and rare-earth-element (REE) concentrations and UThPb, SmNd, and RbSr isotope systematics are reported for Cenozoic volcanic rocks from northeastern and eastern China. These volcanic rocks, characteristically lacking the calc-alkaline suite of orogenic belts, were emplaced in a rift system which formed in response to the subduction of the western …
Magma-magma interaction in the mantle beneath eastern …
In addition to magma-rock and rock-rock reaction, magma-magma interaction at mantle depth has recently been proposed as an alternative mechanism to produce the compositional diversity of intraplate basalts.
In-situ trace elements and Li and Sr isotopes in peridotite …
The Huangyishan volcano (Fig. 1 c) is the largest and most representative of over 20 volcanoes in the Kuandian volcanic field covering an area of nearly 500 km 2. The …
Geochemical and Sr–Nd–Pb isotopic characteristics of basalt …
The basalt may have suffered from earlier partial melting of garnet-spinel peridotite and later rapid fractional crystallization of mafic minerals (olivine and pyroxene). Significant geochemical and petrological discrepancies between inland basalt and coastal basalt suggest a subduction-absent within-plate setting for inland basalt but a strong ...
Major- and trace-element compositions of Cenozoic basalts …
Variations in the ratios of highly incompatible elements of the basalts in eastern China demonstrate two mantle components. The enriched mantle component, primarily represented by the basalts in NE China, show high LILE/Nb, Ba/Th, Ba/U, Th/U and low La/Ba ratios, typical of the Walvis Bay Ridge, Gough and Tristan da Cunha oceanic island basalts …
Almandine megacrysts from Yingfengling Cenozoic basalt in …
DOI: 10.1007/BF02900606 Corpus ID: 129765678; Almandine megacrysts from Yingfengling Cenozoic basalt in Leizhou Peninsula and their parental magma origin @article{Yu2001AlmandineMF, title={Almandine megacrysts from Yingfengling Cenozoic basalt in Leizhou Peninsula and their parental magma origin}, author={Jinhai Yu and Suzanne Y. …
He, Sr and Nd isotopes of mantle-derived xenoliths in …
Abundances and isotopic compositions of He are listed in Table 2. In general, He concentrations in the xenoliths measured have a large variation, ranging from 2.3×10 −9 to 2.5×10 −7 cm 3 STP g −1.On average these values are lower than the values obtained for MORB glasses which are mostly within the range 10 −6 –10 −5 cm 3 STP g −1, and also somewhat …
Petrogenetic significance of high Fe/Mn ratios of the
The Cenozoic basalts from eastern China show commonly high Fe/Mn ratios (average = 68.6 ± 11.5) coupled with OIB-type trace element signature. The Cenozoic basalts form the northern margin and the southern margin of the North China Craton are studied in detail. Model calculations point out that the coupling feature of high Fe/Mn ratio with OIB-type trace element …