新质生产力为我国新征程上推动高质量发展提供了科学指引,是符合新发展理念的先进生产力质态。为清晰全面深入地掌握新质生产力的演化过程与研究进展,对中国知网和Web of Science数据库中新质生产力、先进生产力和绿色生产力相关领域在2...新质生产力为我国新征程上推动高质量发展提供了科学指引,是符合新发展理念的先进生产力质态。为清晰全面深入地掌握新质生产力的演化过程与研究进展,对中国知网和Web of Science数据库中新质生产力、先进生产力和绿色生产力相关领域在2014—2024年的14351篇文献进行计量分析。在科学计量学理论基础上,以CiteSpace和VOSviewer软件为研究工具,研究新质生产力领域的共词网络、关键词时序图、文献共引网络等知识图谱,从新质生产力的研究热点、研究现状、发文数量、研究机构等方面进行可视化分析、内容分析及统计分析。研究结果旨在为新质生产力的演化过程、发展趋势及未来应用提供方向性指导。展开更多
Linxia Basin is a late Cenozoic fault-block basin along the border between the Tibet plateau and the Loess plateau in Northwestern China. Its formation and sediments record may be directly affected by the structural d...Linxia Basin is a late Cenozoic fault-block basin along the border between the Tibet plateau and the Loess plateau in Northwestern China. Its formation and sediments record may be directly affected by the structural dynamics and the uplift of the Tibet Plateau. For this reason, we studied the mineral characteristics of the Maogou formation of Miocene sediments using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD results showed that quartz, chlorite, illite, calcite, plagioclase, orthoclase, kaolinite, and trace palygorskite are present throughout the sequence of the cross-section in Linxia basin. In contrast, gypsum and ankerite occur occasionally in the upper portion of the Miocene deposits. The content of calcite varied with layers in the profile and was relatively concentrated in mudstone. Chlorite and illite were observed transforming into palygorskite under SEM observation. Based on the mineral characteristics and the change of mineral composition, especially the clay minerals, it could be inferred that an arid environment prevailed in the region with warm and cold intervals during Miocene time.展开更多
文摘新质生产力为我国新征程上推动高质量发展提供了科学指引,是符合新发展理念的先进生产力质态。为清晰全面深入地掌握新质生产力的演化过程与研究进展,对中国知网和Web of Science数据库中新质生产力、先进生产力和绿色生产力相关领域在2014—2024年的14351篇文献进行计量分析。在科学计量学理论基础上,以CiteSpace和VOSviewer软件为研究工具,研究新质生产力领域的共词网络、关键词时序图、文献共引网络等知识图谱,从新质生产力的研究热点、研究现状、发文数量、研究机构等方面进行可视化分析、内容分析及统计分析。研究结果旨在为新质生产力的演化过程、发展趋势及未来应用提供方向性指导。
文摘Linxia Basin is a late Cenozoic fault-block basin along the border between the Tibet plateau and the Loess plateau in Northwestern China. Its formation and sediments record may be directly affected by the structural dynamics and the uplift of the Tibet Plateau. For this reason, we studied the mineral characteristics of the Maogou formation of Miocene sediments using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD results showed that quartz, chlorite, illite, calcite, plagioclase, orthoclase, kaolinite, and trace palygorskite are present throughout the sequence of the cross-section in Linxia basin. In contrast, gypsum and ankerite occur occasionally in the upper portion of the Miocene deposits. The content of calcite varied with layers in the profile and was relatively concentrated in mudstone. Chlorite and illite were observed transforming into palygorskite under SEM observation. Based on the mineral characteristics and the change of mineral composition, especially the clay minerals, it could be inferred that an arid environment prevailed in the region with warm and cold intervals during Miocene time.
