with 2 plate The surroundings of Tungtzu had been repeatedly visited and investigatedby geologists,betore we went there......

Many previous studies of Meishan, Changxing, have been made on paleontology,sedimentology and paleomagnetism, and less ......

Piperock, a kind of characteristic ichnofabrics in Phanerozoic, was thought to decline gradually from Cambrian to Ordovi......

During the latest Permian and earliest Triassic time, most parts of Tethys were entirely lacking in uppermost Permian (......

湖南二叠系层状硅质岩石SiO2含量为66.63%～93.66%,平均值为81.10%;TiO2和Al2O3较低,As、Sb富集,稀土总量较低,具有δCe和δEu负异常......