随着光伏产业和新能源汽车产业的蓬勃发展,国内外锂资源需求持续增加,黏土型锂矿逐渐成为矿产勘查的重点。经地质调查,南漳县西部梁山组黏土岩存在锂的超常富集现象,具备形成独立锂矿床的潜力,而梁山组富锂黏土岩物源特征、沉积环境和...随着光伏产业和新能源汽车产业的蓬勃发展,国内外锂资源需求持续增加,黏土型锂矿逐渐成为矿产勘查的重点。经地质调查,南漳县西部梁山组黏土岩存在锂的超常富集现象,具备形成独立锂矿床的潜力,而梁山组富锂黏土岩物源特征、沉积环境和成矿规律的研究仍为空白。因此,有必要研究南漳县西部梁山组富锂黏土岩物源特征,以进一步揭示其源区地质特征,为后续找矿工作提供有效指导。经测定,南漳县西部梁山组富锂黏土岩样品Al_(2)O_(3)/TiO_(2)比值为14.45~37.69,平均值为27.68;K_(2)O/Al_(2)O_(3)比值为0.0017~0.0206,平均值为0.0098;Cr/Zr比值为0.1449~0.3519,平均值为0.2775。结果表明,黏土岩物源区主要为长英质岩石。La/Sc-Th/Co图解、Zr-TiO_(2)图解中,所有样品点均落在长英质物源区,显示物源的单一性。大多数样品的化学蚀变指数(Chemical Index of Alteration,CIA)、化学风化指数(Chemical Index of Weathering,CIW)均在90以上,说明源岩经历强烈化学风化作用。展开更多
以通行全球100多个国家的互联网专业人员国际权威认证CIW(Certified Internet Webmaster)的IT产业能力指标为依据,提出将CIW认证融入网络类课程,以Web技术基础课程为例,构建融入国际认证指标的课程教学模式,将CIW应用能力指标融入学生...以通行全球100多个国家的互联网专业人员国际权威认证CIW(Certified Internet Webmaster)的IT产业能力指标为依据,提出将CIW认证融入网络类课程,以Web技术基础课程为例,构建融入国际认证指标的课程教学模式,将CIW应用能力指标融入学生的专业能力培养中,使课程的目标既符合教学要求又符合全球认证要求,从而提高学生的就业竞争力。展开更多
The thick, Eocene to Pliocene, sedimentary sequence in Qaidam Basin at the northern margin of the Tibetan Plateau records the surface uplift history of the northeastern Tibetan plateau. In this study, we present detai...The thick, Eocene to Pliocene, sedimentary sequence in Qaidam Basin at the northern margin of the Tibetan Plateau records the surface uplift history of the northeastern Tibetan plateau. In this study, we present detailed geochemistry, heavy mineral, and clay mineralogy data of the well preserved sedimentary record in the Dahongou section in the northeast of the Qaidam Basin. The results suggest that the sedimentary sequence recorded a 30 Ma young uplift/unroofing event in the northern edge of the Qaidam Basin, which is characterized by high ZTR index value and chlorite content, and low CIW＇. The results are consistent with previous sedimentological studies of the Qaidam Basin, which indicated rapid increase of the accumulation rates around 30 Ma. Based on past thermochronological data from the mountains around the Qaidam Basin and the accumulation rates of the Cenozoic basins in the northeastern Tibetan Plateau, we infer a regional uplift and denudation event along the northeastern Tibetan Plateau during early Oligocene （-30 Ma）, indicating that the Tibetan Plateau had expanded north-eastward of the study area at that time.展开更多
On November 26, 2017, the China Cultural Center in Tel Aviv was unveiled in Tel Aviv, a coastal ciw in Israel, it is China＇s 35th cultural center in foreign countries, and it is also the second China Cultural Center ...On November 26, 2017, the China Cultural Center in Tel Aviv was unveiled in Tel Aviv, a coastal ciw in Israel, it is China＇s 35th cultural center in foreign countries, and it is also the second China Cultural Center besides the other one in Egypt in Middle East region. The China Cultural Center in Tel Aviv is an official cultural organization, which was established by Chinese government in Israel with a goal of disseminating Chinese excellent cultures and promoting Sino-Israeli cultural exchanges and cooperation.展开更多
文摘随着光伏产业和新能源汽车产业的蓬勃发展,国内外锂资源需求持续增加,黏土型锂矿逐渐成为矿产勘查的重点。经地质调查,南漳县西部梁山组黏土岩存在锂的超常富集现象,具备形成独立锂矿床的潜力,而梁山组富锂黏土岩物源特征、沉积环境和成矿规律的研究仍为空白。因此,有必要研究南漳县西部梁山组富锂黏土岩物源特征,以进一步揭示其源区地质特征,为后续找矿工作提供有效指导。经测定,南漳县西部梁山组富锂黏土岩样品Al_(2)O_(3)/TiO_(2)比值为14.45~37.69,平均值为27.68;K_(2)O/Al_(2)O_(3)比值为0.0017~0.0206,平均值为0.0098;Cr/Zr比值为0.1449~0.3519,平均值为0.2775。结果表明,黏土岩物源区主要为长英质岩石。La/Sc-Th/Co图解、Zr-TiO_(2)图解中,所有样品点均落在长英质物源区,显示物源的单一性。大多数样品的化学蚀变指数(Chemical Index of Alteration,CIA)、化学风化指数(Chemical Index of Weathering,CIW)均在90以上,说明源岩经历强烈化学风化作用。
文摘以通行全球100多个国家的互联网专业人员国际权威认证CIW(Certified Internet Webmaster)的IT产业能力指标为依据,提出将CIW认证融入网络类课程,以Web技术基础课程为例,构建融入国际认证指标的课程教学模式,将CIW应用能力指标融入学生的专业能力培养中,使课程的目标既符合教学要求又符合全球认证要求,从而提高学生的就业竞争力。
基金supported by the Foundation of Geological Survey of China (No.1212011121261)the National Natural Science Foundation (Nos.: 40921062 and 40830212)
文摘The thick, Eocene to Pliocene, sedimentary sequence in Qaidam Basin at the northern margin of the Tibetan Plateau records the surface uplift history of the northeastern Tibetan plateau. In this study, we present detailed geochemistry, heavy mineral, and clay mineralogy data of the well preserved sedimentary record in the Dahongou section in the northeast of the Qaidam Basin. The results suggest that the sedimentary sequence recorded a 30 Ma young uplift/unroofing event in the northern edge of the Qaidam Basin, which is characterized by high ZTR index value and chlorite content, and low CIW＇. The results are consistent with previous sedimentological studies of the Qaidam Basin, which indicated rapid increase of the accumulation rates around 30 Ma. Based on past thermochronological data from the mountains around the Qaidam Basin and the accumulation rates of the Cenozoic basins in the northeastern Tibetan Plateau, we infer a regional uplift and denudation event along the northeastern Tibetan Plateau during early Oligocene （-30 Ma）, indicating that the Tibetan Plateau had expanded north-eastward of the study area at that time.
文摘On November 26, 2017, the China Cultural Center in Tel Aviv was unveiled in Tel Aviv, a coastal ciw in Israel, it is China＇s 35th cultural center in foreign countries, and it is also the second China Cultural Center besides the other one in Egypt in Middle East region. The China Cultural Center in Tel Aviv is an official cultural organization, which was established by Chinese government in Israel with a goal of disseminating Chinese excellent cultures and promoting Sino-Israeli cultural exchanges and cooperation.
