介绍一个现代化的普物实验--液晶光阀

介绍了晶光阀实验的原理、内容、方法和结果,着重讨论了该实验作为一个新的现代化的普通物理实验的优点。     

华北与扬子板块志留—泥盆纪对接的沉积地球化学证据

本文根据对秦岭造山带与其相邻华北地台南缘,以及扬子地台北缘元古宙至第三纪各时代细粒碎屑沉积岩大量样品的主量、微量元素的研究结果,从沉积地球化学的角度论证了华北与扬子板块的对接应发生在志留-泥盆纪.     

SILURIAN-DEVONIAN COUPLING OF THE NORTH CHINA AND YANGTZE PLATES: EVIDENCE FROM THE GEOCHEMISTRY OF SEDIMENTARY ROCKS

Major and trace element compositions of a large number of Proterozoic-Tertiary finegrained clastic sedimentary rocks from the Qinling Orogenic Belt and its adjacent southern margin of the North China Platform and northern margin of the Yangtze Platform reveal that the North China and Yangtze plates were coupled during the period of Silurian to Devonian.