论文部分内容阅读
太古代及其以后的岩生金矿床中,碳酸盐化是一种显著和重要的蚀变作用,它与金有直接的成因联系,利用碳酸盐化及其蚀变组合,还可作为找矿和评价的标志.因此,对岩生矿床中的碳酸盐及其碳质的来源问题,就成了普遍重视的研究课题.本刊发表的《太古代碳的储集层及与金矿床成矿流体来源之间的关系》和《太古代的碳和金》有关太古代绿岩带金矿床中碳的来源及与金矿关系的两篇译文.旨在为从事金矿的研究者提供有关研究新资料,也希望通过它们能引起同行们的关注,并开展一些讨论.从这两篇简短而精辟的译文内容来看,文章作者通过各自的研究,提出了一些相似但侧重面不同的学术观点,即碳酸盐中的碳不是主要来源于单一的海水(碳酸盐沉积物、有机碳和海水热液碳酸盐),而与地幔的脱气作用有关.但澳大利亚的学者比较强调碳主要是来自地幔,并受区域断裂带的控制,海水来源则不是主要的,局部的岩浆来源也不是必要条件.而加拿大的学者则比较重视侵入到地壳中的岩浆熔体的脱气作用,并依据板块俯冲消减带的特征来解释碳的循环作用.作者还特别重视生物有机质在形成碳酸盐中的作用.由此看来,对这一重要而复杂的问题虽然已经取得了很大的进展,但对形成机制均一些具体问题,认识上还表现得不够一致,也许看来对立的观点是互为补充的,这有待今后进一步的研究和论证.
Carbonation is a significant and important alteration in the Archean and later Yaningsu gold deposits. It has a direct genetic association with gold and can be used as a proxy for carbonate and alteration combinations Ore and evaluation of the sign.Therefore, the source rock carbonate deposits and carbonaceous matter has become a research topic of universal importance.This publication published "Archean carbon reservoirs and with gold deposits into The relationship between sources of ore fluids and Archean Carbon and Gold Two translations on the source of carbon in the Archean greenstone gold deposits and their relationship to the gold mine are intended to provide information to researchers engaged in gold mining Also hope that through them they can attract the attention of colleagues and conduct some discussions.From these two brief and incisive translation content, the author of the article through their own research, put forward some similar but different aspects of the academic In view of the fact that carbon in carbonates is not mainly derived from a single seawater (carbonate sediments, organic carbon and hydrothermal carbonates), it is related to de-aeration of the mantle, but Australian scholars place more emphasis on carbon Mainly from the mantle, and by the district The control of the fault zone is not the main source of seawater and the local magma source is not a necessary condition, while Canadian scholars pay more attention to the degassing of the magma melt intruded into the crust. Based on the characteristics of slab subduction zone Explain the role of carbon in the circulation of carbon The author also attaches particular importance to the role of bioorganic matter in the formation of carbonates, and although significant progress has been made on this important and complex issue, some of the formation mechanisms are specific Problems and understandings are not consistent enough. It may seem that the opposite view is complementary to each other, which needs further study and demonstration in the future.