1. Alkalescent granites and gold-related silication and argillation are geological prerequisites for the formation of noticeable gold deposits.
   摘要偏碱性花岗岩及与金的成矿活动有关的硅化、粘土化蚀变是黑刺沟金矿田规模金矿床存在的地质前提。
2. The results showed that low temperature, high content of salt and acidic condition inhibited ammonifiers growth, and alkalescent condition showed little effect on ammonifiers.
   结果表明,低温、高盐度和酸性条件会抑制氨化菌的生长;中、碱性条件下,氨化菌仍能维持正常生长;苏州河的氨化菌无法以无机氮和尿素作为生长所需的氮源;

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