At the same time, the volcanic rocks in the Late Jurassic and Early Cretaceous have similar distribution ranges, which are only distributed west of the Songnen Basin-North Hebei …
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1BGP CNPC, Zhuozhou, Hebei, China (dshsun@163) Abstract . ... The P&D of gas reservoirs faced many difficulties, including imaging of the volcano, identification of …
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Generally speaking, plate tectonic models and the mantle-plume hypotheses can reasonably explain the derivation of most mafic volcanic rocks from mantle-derived, mafic …
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The 40Ar/39Ar age of the first stage of Quaternary volcanic rocks is 2.36±0.05 Ma. Combined with the magnetostratigraphy of CK3 core, the time of volcanic activities in Hebei …
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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 …
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Quartz phenocrysts are common in many granites, volcanic rocks, metamorphic rocks and hydrothermal deposits. The Dongping porphyritic granite contains large amounts of rounded to …
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The ultramafic (komatiite)-mafic (minor felsic) volcanic rocks indicate mantle plume activity and crustal contamination.
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The Late Jurassic igneous rocks in the NCC are located mainly in northern Hebei and western Liaoning provinces, with further rocks occurring on Liaodong and Jiaodong peninsulas, as well as ...
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The petrogenesis and temporal–spatial distribution of these metamorphosed volcanic rocks and the intrusive granitoid gneisses in the WLP indicate that this basement terrane …
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Outline of geological setting and distribution map of gold deposits in the northern of the great xing'an range (after Zhao et al., 2023a, Meng et al., 2001, Qi et al., 2005). ... Most …
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Figure 4 U-Pb concordia diagram of zircons in volcanic samples of the Tuchengzi Formation in northern Hebei-western Liaoning. sample (Although these data are concordia, they are in- …
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Sketch map showing the distribution of Cenozoie basaltic rocks in North China. 1. Prec6nozoie basement; 2. Cenozoic uplifting region; 3. ... gene basahs from the central Hebei basin (the …
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The data for volcanic rocks from the Izu-Bonin-Mariana subduction system (A and B) ... The spatial and temporal distribution of (A) ~2.62–2.58 Ga and (B) ~2.55–2.49 Ga …
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Mesozoic volcanisms are widespread throughout northeastern China and its adjacent areas (Fig. 1a). In the Great Xing'an area, the Mesozoic volcanic rocks cover an area …
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A group of extremely rare coeval ultramafic–mafic and syenitic dykes was discovered in the Eastern Hebei region of the North China Craton. These dykes intrude the 3.8–2.55 Ga …
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The Paleoarchean Chentaigou supracrustal rocks in the Anshan area (Fig. 2) are the most ancient supracrustal rocks in the North China Craton, and these rocks are distributed …
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The outer edges of the basins or plains are very different, and varying degrees of multi-age mixed and multi-lithology coexisting rock masses dominated by acidic magma and …
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The Xiong'er volcanic belt is present along the southern margin of the NCC and is thought to be the result of outgrowth from the Columbia supercontinent (He et al., 2008, Zhao …
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The Yixian Formation is mainly represented by a set of volcanic-pyroclastic rock series. The Lower and Middle parts of the formation are mainly built up by yellow gray and gray black basalt, with basaltic breccia lava and sedimentary rocks, …
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The above diverse opinions were mainly arisen due to the scarcity of precise eruption ages and undetermined spatial distribution of these volcanic rocks. It has been …
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Figure 1. Geological distribution of Archean igneous lithological assemblages in eastern Hebei-western Liaoning provinces; Figure 2. Stereographic projections (Wulff net, lower hemisphere) showing the tectonic foliation and stretching …
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This association may have been more widespread during the Archean, however, as evidenced by the widespread distribution of inclusions of these rock types at higher …
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Figure 8.1 shows distribution of the Archean rocks, Palaeoproterozoic mobile/orogenic belts and a Meso-Neoproterozoic rift system. The Archean rocks are …
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The distribution of Banded iron formations (BIFs) in the North China Craton (NCC) has some obvious characteristics. Large-scale BIFs and BIF-type iron deposits occur mainly in …
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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 …
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To reveal the spatio-temporal evolution of regional volcanisms and their tectonic setting, we subdivide Mesozoic-Cenozoic volcanic activities into 6 volcanic cycles (I-VI), and …
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The eastern Hebei-western Liaoning provinces are the largest exposure regions of Archean basement rocks in the northern part of North China Craton.
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The Yanliao and Jehol biotas of northern China, preserved in two world-class Lagerstätten, appeared and flourished in the unique area where Mesozoic subduction-related …
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Among them, the composition of the 2.5 Ga Changyukou volcanic rocks and potassic granites as well as the clockwise hybrid ITD and IBC P–T paths of the HP granulites …
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The oldest supracrustal rocks and orthogneisses are located at Caozhuang in eastern Hebei Province (Fig. 2) and near Tiejiashan in Liaoning Province (Fig. 1) (Liu et al., …
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