The Santanghu area is located on the northeastern margin of the Junggar Basin,northern Xinjiang,Northwest China.The Carboniferous volcanic rocks in this area are widely distributed in Kaokesaiergaishan,Santanghu,Dahei...The Santanghu area is located on the northeastern margin of the Junggar Basin,northern Xinjiang,Northwest China.The Carboniferous volcanic rocks in this area are widely distributed in Kaokesaiergaishan,Santanghu,Daheishan and Naomaohu districts,which are located to the north of the Kalameili Fault.These rocks,sourced from a cognate magma,consist of basic,intermediate,and acidic lavas,and pyroclastic rock.The basic volcanic rocks are enriched with large-ion lithophile elements(LILE),but are relatively depleted in high field strength elements(HFSE),and have an obvious negative Nb-Ta-Ti anomaly.They were most probably derived from a depleted mantle source,and during their ascent,these magmas were not contaminated by the crustal material as they underwent magma crystallization differentiation.Based on the Carboniferous volcanic assemblage and geochemical data,it is apparent that the early Carboniferous volcanism occurred in a subduction-related tectonic setting.New LA-ICP-MS zircon U-Pb analyses constrain the age of the andesite within the volcanic rocks as the early Carboniferous(328.9-331.3 Ma).Combined with the regional geological record,comprehensive analysis of the isotope geochronological data indicates that the subduction of the Junggar Ocean predates the early Carboniferous,and that the Santanghu island arc magmatism was induced by the subduction of the Junggar Ocean in the Carboniferous.展开更多
Research on modern Chinese literature has achieved results that have attracted wide attention. However, its state of near ＂saturation＂ has placed it in a dilemma with no clear way forward. Finding new academic growt...Research on modern Chinese literature has achieved results that have attracted wide attention. However, its state of near ＂saturation＂ has placed it in a dilemma with no clear way forward. Finding new academic growth points has become exceptionally important and urgent. The relationship between the ＂culture of calligraphy＂ and ＂modem Chinese writers＂ is virtually a research blank and has so Ihr attracted regrettably little attention. In fact, many modem Chinese writers have had close ties with calligraphy, making important contributions to its collection, creation and scholarly exploration. Conversely, the culture of calligraphy has exerted a profound influence on such things as the mode of existence, textual forms, emotional expression, ways of thought and aesthetic tastes of modem literature. Moreover, an examination of this relationship may stimulate us to reflect more deeply on literature, calligraphy, culture, education and related issues, which may help us gain a larger space for the development of Chinese culture and literature in the new century.展开更多
基金supported by Land and Resources Survey Project of China(Grant No. 1212011085009)the Sinopec Project "Study and Map Compilation for Structure,Lithofacies,and Paleogeography in Northwestern China" (Grant No. YPH08103)National Natural Science Foundation of China (Grant No. 40802051)
文摘The Santanghu area is located on the northeastern margin of the Junggar Basin,northern Xinjiang,Northwest China.The Carboniferous volcanic rocks in this area are widely distributed in Kaokesaiergaishan,Santanghu,Daheishan and Naomaohu districts,which are located to the north of the Kalameili Fault.These rocks,sourced from a cognate magma,consist of basic,intermediate,and acidic lavas,and pyroclastic rock.The basic volcanic rocks are enriched with large-ion lithophile elements(LILE),but are relatively depleted in high field strength elements(HFSE),and have an obvious negative Nb-Ta-Ti anomaly.They were most probably derived from a depleted mantle source,and during their ascent,these magmas were not contaminated by the crustal material as they underwent magma crystallization differentiation.Based on the Carboniferous volcanic assemblage and geochemical data,it is apparent that the early Carboniferous volcanism occurred in a subduction-related tectonic setting.New LA-ICP-MS zircon U-Pb analyses constrain the age of the andesite within the volcanic rocks as the early Carboniferous(328.9-331.3 Ma).Combined with the regional geological record,comprehensive analysis of the isotope geochronological data indicates that the subduction of the Junggar Ocean predates the early Carboniferous,and that the Santanghu island arc magmatism was induced by the subduction of the Junggar Ocean in the Carboniferous.
文摘Research on modern Chinese literature has achieved results that have attracted wide attention. However, its state of near ＂saturation＂ has placed it in a dilemma with no clear way forward. Finding new academic growth points has become exceptionally important and urgent. The relationship between the ＂culture of calligraphy＂ and ＂modem Chinese writers＂ is virtually a research blank and has so Ihr attracted regrettably little attention. In fact, many modem Chinese writers have had close ties with calligraphy, making important contributions to its collection, creation and scholarly exploration. Conversely, the culture of calligraphy has exerted a profound influence on such things as the mode of existence, textual forms, emotional expression, ways of thought and aesthetic tastes of modem literature. Moreover, an examination of this relationship may stimulate us to reflect more deeply on literature, calligraphy, culture, education and related issues, which may help us gain a larger space for the development of Chinese culture and literature in the new century.
