Distribution of columnar jointed basalt at Baihetan hydropower station (Fan et al., 2018): (a) geological profile for Baihetan hydropower station, (b) type I columnar jointed basalt, with column diameter of 0.13m–0.25 m, (c) type II columnar jointed basalt, with column diameter of 0.25 m–0.4 m, (d) type III columnar jointed basalt, with ...
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The global distribution map of basalt samples is shown in Figure 4. Each basalt sample was assigned with 11 major elements (SiO2, Figure 4. Global distribution map of basalt sample collection ...
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Herein, we report some major and trace elements of a weathering profile developed on Neogene basalt in northeast Hainan Island, South China. Because basalts are very sensitive to chemical weathering (Berner and Berner, 1997), and chemical weathering is significantly intensified by the tropical climate, most of the weathering profiles in this region have …
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China is the world's largest consumer of Mn resources. In recent years, this demand for Mn has increased because of the rapidly developing metallurgical and high-tech industries (Du et al., 2013; Cong et al., 2018; Deng et al., 2019; Hu et al., 2021).In particular, with the development of new infrastructure projects and new energy vehicles, the demand for stainless …
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Volcanic basalt eruption activity in the South China Sea and adjacent areas occurred strongly in Cenozoic E ra. However, it is difficult to define their ranges and spatial locations.This paper presents the methods of reduction to the magnetic equator in low latitudes to bring out a better correlation between magnetic anomalies and their causing-sources; high …
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The basalt samples in the coastal regions of SCB show large variations in 87 Sr/ 86 Sr and low 143 Nd/ 144 Nd ratios. ... Timing and spatial distribution of rifting in China. Tectonophysics., 197 (1991), pp. 225-243. View PDF View article View in Scopus Google Scholar. Gilder et al., 1996.
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The Cenozoic volcanicity of eastern China is entirely basaltic and occurred as relatively small eruptions widely dispersed in space and time, closely associated with graben …
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The magnetic properties and magnetic mineralogy of a weathering sequence of soils developed on basalt parent material from eastern China, were studied by rock magnetism, X-ray diffraction and soil chemical analyses to establish the connection between mineral magnetic properties and pedogenic development in a subtropical region.
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The distribution and geological conditions of terrestrial basalts in China were investigated, ... (Kumar et al., 2017), Siberia basalt, Jilin, Inner Mongolia, Heilongjiang, Yunnan in China (Zhang et al., 2023); (b) Basalt contains about 25 % calcium, magnesium and iron oxides. A large amount of Ca, Mg, Fe and other divalent cations can be ...
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Continental intraplate basalts (15.42–0.16 Ma) from Abaga–Dalinuoer volcanic field (ADVF) in central Inner Mongolia of eastern China, as a part of Cenozoic volcanic province along eastern margin of the Eurasian continent, provide a good opportunity to explore potential links between deep subduction of the Pacific slab and continental intraplate volcanism.
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The Leizhou Peninsula is located in the south tropical region of China, which has widely distributed basalt-cover soils and contains well-developed rock-soil profiles. In this study, two basalt weathering profiles with different degrees of weathering were chosen. ... This research studies the distribution and speciation of Cr under different ...
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Similarly, trends in the thickness of the massive core zone and the base vesicle zone relative to the basalt lava flow unit thickness can be expressed by a piecewise linear function. Vesicle distribution models provide an effective means of determining the proportion and distribution of vesicle zones in basalt with limited borehole data.
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This means that the water-content contrast between the basalt source and the lithospheric mantle for a specific area, and the regional water distribution in the lithospheric mantle and in the basalt source for entire eastern China could be explored. Chen et al.
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The distribution of Se in agricultural soils and terrestrial environments is not uniform. There are large areas with Se deficiency (Jones et al., 2017), and the intake of Se varies worldwide significantly (Dumont et al., 2006).China is a Se-deficient country, and there are ten provinces (cities) with varying degrees of Se deficiency.
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Extremely light apatite δD values indicate deep-originated water in intracontinental granites and basalts from the North China Craton, probably from a stagnant slab within the mantle transition zone.
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Chemical weathering results in the breakdown of primary minerals in the rocks and mobilizes all chemical elements. As a result, the distribution of elements in weathering products differs greatly from that in parent rocks (Nesbitt et al., 1980; Nesbitt and Young, 1984).The weathering of silicate rocks is responsible for the long-term regulation of carbon cycle (Amiotte …
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Cenozoic continental basalts in east-central China are characterized by OIB-like trace element patterns with more depleted to less enriched Sr–Nd isotope compositions. Such …
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In eastern China, deep-faulted tectonic Graham et al. (2008) blocks partly control the basaltic emplacements and zircon megacryst characteristics (Zou et al. 2000; Qiu et al. 2005 Qiu et al ...
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Who we are Hengdian GBF Basalt Fiber Co., Ltd. is a company specialized in the production and development of basalt fiber. The highly technological plant is located in Zhejiang Province, China. Belonging to the prestigious Hengdian Group, one of the main private industrial conglomerates, Hengdian GBF is at the forefront of the basalt fiber industry.
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The high-Si basalt endmember is characterized by low alkali, Fe2O 3 T and TiO2 contents, Indian Mantle-type Pb-Nd-Hf isotopic compositions, and a predominant garnet pyroxenitic source. ... Water in the upper mantle and deep crust of eastern China: Concentration, distribution and implications. Natl Sci Rev, 90. Xu Y G. 2007. Diachronous ...
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However, Kimura et al. examined the chemical geodynamics of the late Cenozoic basalts in East Eurasia and proposed that the late Cenozoic intraplate basalt in Northeast China is mainly controlled by the deep plume induced by the sinking Izanagi Plate and that fluid is mainly driven by the plume and moves upward and then laterally. In this case ...
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The geological-survey basalt is partly covered by vegetation that is thus hard to be identi fied by remote-sensing imageries, so we just used the bare-ba salt distribution of the geological-survey, that is without vegetati on coverage, to assess the identi fied results. The bare-basalt distribution is extracted through land-use classi ...
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The North China Craton (NCC) is considered to be a collage of four micro-continental blocks, including the Yinshan, Ordos, Longgang, and Rangrim blocks. ... this also shows the same zonal distribution as the basalt trend in the study area. However, most of this elliptical area was not predicted by the model. Class 4 features the areas with high ...
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The Mesozoic rift basins of northeast China are characterized by a significant proportion of basalt due to the progressive emplacement of basalt lava flows. The objective of this study was to construct vesicle distribution models of the basalt lava flow units, including conceptual geological models and thickness models, to understand the architecture of the …
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Mobilization and re-distribution of major and trace elements during extreme weathering of basalt in Hainan Island, South China July 2007 Geochimica et Cosmochimica Acta 71(13):3223-3237
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Here, we conduct an investigation on olivine (including gem-grade) hosted in ultramafic xenoliths from Damaping basalt in the northern part of the North China Block.
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Cenozoic basalts are widely distributed in eastern China, and some of them contain zircon megacrysts which are considered to be constituent mineral of the subcontinental lithospheric mantle...
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Notably, proven economic Cr deposits in China are dominated by ophiolitic chromite deposits, such as the Luobusa in Tibet and Saertuohai in Xinjiang Province (Zhu et al., 2013; Hu et al., 2014). Whether the distribution of chromite deposits is coupled to the distribution of high Cr geochemical anomalies or not remain unclear.
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Hainan (southern China), a basalt-derived lateritic soil at Nanyang, Hainan, was investigated comprehensively. The results show that the ... distribution of basalts of different ages (colors) and Cenozoic sediments (gray) (modified from Wang et al., 2012). Clays and Clay Minerals 3
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The results from the above-mentioned methods have shown that the distribution of the eruptive volcanic basalt is mainly concentrated along the South China Sea's sea floor-spreading axis ...
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Geochemical data from this study indicate that Cenozoic basaltic magmas of North China were derived from two different mantle sources. Epuptions of alkali and subalkali basalts occurred respectively during Paleogene, Neogene, and Quaternary in North China.
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Here we present a case study from eastern China, combining major and trace element analyses with Ar–Ar and K–Ar dating to show that the …
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The most recent studies of trace element distributions and radiogenic (Sr, Nd and Pb) and stable (O) isotope compositions have revealed that continental basalts of eastern China are highly …
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There are widespread Cenozoic basalts in Shandong province that are primarily distributed along the Tanlu fault ( Fig. 1a; Xu et al., 2009, and references therein). Based on geochronological …
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(b) Distribution of Cenozoic basalts in Nanjing basaltic field, central eastern China. Distributions of Cenozoic basalts in this area are after Anhui Institute of Geological Survey [1977], Jiangsu Institute of Geological Survey [1978], and Zhao et al .
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Cenozoic basalts in SE China may be derived from a mixture of depleted MORB mantle (DMM) and enriched mantle 2 (EM2) sources, but whether these basalts share a …
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The Emeishan Flood Basalt in SW China: A Mantle Plume Initiation Model and its Connection with Continental Breakup and Mass Extinction at the Permian-Triassic Boundary. Sun-Lin Chung, Sun-Lin Chung. Dept. of Geology, National Taiwan University, Taipei, Taiwan. Search for more papers by this author.
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The Hongge deposit in the Panxi region, SW China is renowned as one of the world's most giant Fe-Ti oxide deposits (Bai et al., 2012a, Bai et al., 2012b, Bai et al., 2024).Recent exploration efforts have revealed that the Co reserves in the southern sector of the deposit could potentially exceed 488,400 tons, with an annual production of Co concentrate …
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We propose that the Cenozoic basaltic volcanism in eastern Guangdong records an overall lithospheric thickening process beneath SE China, that is, a continental rift system from …
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