The metallogenesis of subvolcanic deposits is controlled by subvolcanic activities. The copper polymetallic deposits are genetically related to intermediate-acid rocks, and the silver polymetallic deposits are more cl...The metallogenesis of subvolcanic deposits is controlled by subvolcanic activities. The copper polymetallic deposits are genetically related to intermediate-acid rocks, and the silver polymetallic deposits are more closely related to acid rocks. The abundance of Cu is relatively high in the intermediate-acid rocks and subvolcanic rocks, whereas the abundances of Pb, An and Ag are high in acid rocks, indicating rich ore-forming elements in original magmas. The study of REEs shows that the magmatic type related to copper deposits is the syntectic type, and that related to silver polymetallic deposits is mainly the re-melting type. The deposits were formed under medium-low temperatures and low salinity. The metallogenic times were the late stage of the early Yanshanian or the late Yanshanian, dating 78–147 Ma.展开更多
在现有的审查检索过程中,为了保证检索的全面性,或者为了给申请人提供更多的现有技术信息,需要进行全面检索,尤其是需要进行非专利检索。然而,现有的非专利检索往往聚焦在中国知网等中文非专利文献数据库,而忽略了外文非专利文献的检索...在现有的审查检索过程中,为了保证检索的全面性,或者为了给申请人提供更多的现有技术信息,需要进行全面检索,尤其是需要进行非专利检索。然而,现有的非专利检索往往聚焦在中国知网等中文非专利文献数据库,而忽略了外文非专利文献的检索。本文通过介绍外文非专利数据库Web of Science平台的相关信息和其使用方法,并结合具体的实际案例,探讨了一些Web of Science的使用技巧,旨在为有检索需求的专利从业人员提供一种外文非专利文献的检索途径,供检索人员参考。展开更多
文摘The metallogenesis of subvolcanic deposits is controlled by subvolcanic activities. The copper polymetallic deposits are genetically related to intermediate-acid rocks, and the silver polymetallic deposits are more closely related to acid rocks. The abundance of Cu is relatively high in the intermediate-acid rocks and subvolcanic rocks, whereas the abundances of Pb, An and Ag are high in acid rocks, indicating rich ore-forming elements in original magmas. The study of REEs shows that the magmatic type related to copper deposits is the syntectic type, and that related to silver polymetallic deposits is mainly the re-melting type. The deposits were formed under medium-low temperatures and low salinity. The metallogenic times were the late stage of the early Yanshanian or the late Yanshanian, dating 78–147 Ma.
文摘在现有的审查检索过程中,为了保证检索的全面性,或者为了给申请人提供更多的现有技术信息,需要进行全面检索,尤其是需要进行非专利检索。然而,现有的非专利检索往往聚焦在中国知网等中文非专利文献数据库,而忽略了外文非专利文献的检索。本文通过介绍外文非专利数据库Web of Science平台的相关信息和其使用方法,并结合具体的实际案例,探讨了一些Web of Science的使用技巧,旨在为有检索需求的专利从业人员提供一种外文非专利文献的检索途径,供检索人员参考。
