加拿大英属哥伦比亚ＷｒａｎｇｅｌｌｉａＴｅｒｒａｉｎ上三叠纪地层中复杂纤维状方解石脉的形成作用Ｉ．Ｓ．Ａｌ－Ａａｓｍ等本文提出一种在中生代早期与早期火成岩密切相关的热水溶液在浅......

Approximately 230 million years ago in the middle of the Carnian stage of the Upper Triassic, the sedimentary records in......