论文部分内容阅读
近二十多年来对碳酸盐岩的研究突破了传统的理论概念,成为沉积学新理论的主要支柱之一。这些碳酸盐岩除了对油气的形成和储存密切有关外,与很多金属非金属固体矿产的赋存也有密切关系。过去在岩浆热液成矿理论占主导的理论统治下,对这些产在碳酸盐岩中的固体矿产,一般均认为矿质来自岩浆热液。近年来同位素、包裹体、微量元素等精密研究手段的采用,人们逐渐相信多数产在碳酸盐岩地层中的矿床,其矿质主要来自碳酸盐岩地层本身,然而不排除后期热液的改造作用,因而对碳酸盐岩的研究日益受到重视。在粤北的泥盆纪地层中蕴藏着丰富的铅锌、铜、锑、硫铁矿等矿床,这些矿床大都有一定的层位,因而加
In the last two decades, the study of carbonate rocks has broken through the traditional theoretical concepts and become one of the main pillars of the new theory of sedimentology. In addition to being closely related to the formation and storage of hydrocarbons, these carbonate rocks are also closely related to the occurrence of many metallic non-metallic solid minerals. In the past, dominated by the theory of magmatic hydrothermal mineralization, it is generally accepted that these minerals are derived from magmatic hydrothermal fluids for these solid minerals produced in carbonate rocks. In recent years, the use of sophisticated research methods such as isotopes, inclusions, and trace elements has led to the belief that most of the mineral deposits in carbonate formations are derived mainly from the carbonate strata, however, it is not ruled out that later hydrothermal alteration Therefore, the research on carbonate rocks is getting more and more attention. The Devonian strata in northern Guangdong are rich in deposits of lead, zinc, copper, antimony and pyrite. Most of these deposits have a certain horizon,