An Integrated Study of the Earth's Environmental and Metallogenic Histories

对地球的环境和成矿史进行了系统的综合研究，以期验证和进一步发展作者最初的工作假设，即将日本中新世绿色凝灰岩地区的同生黑子型重金属矿床和原油矿床的来源与一种共同的沉积有机质PUMOS联系起来，推测是与古日本海弧后盆地的强烈海洋缺氧有关。目前对世界各地一些主要生物物质灭绝边界(PC/C、F/F、G/L、P/T、C/T和K/T)以及一些主要的受时间限制的层控同生成矿作用(基氏含铜黄铁矿矿床、层状锰矿床和黑子型块状硫化物矿床)的硫同位素研究表明，这些生物和成矿事件几乎总是与…同时发生，有时发生在之前和/或之后。这一发现将为地球环境演化与经济上重要的重金属矿化和油气资源形成之间的密切关系提供证据。另一个重要成果是对硫同位素地层学的基础性贡献。对现代生物地质碳酸盐贝壳和骨骼(软体动物、腕足类、海胆和珊瑚)的SSS(结构取代硫酸盐)进行的一些分析得出的同位素组成与环境中溶解的海水硫酸盐的平均值相似。这将提供可靠的证据，证明地质记录中的生物源SSS可以很好地替代古同时代海水硫酸盐的同位素组成。将基于SSS的同位素地层学应用于亚欧不同地区的石灰岩剖面(寒武系-奥陶系、泥盆系、石炭系、二叠系-三叠系、白垩系)，成功地获得了补充信息，以弥补显生界较少时期的高阶海洋同位素演化和海相氧化还原环境变化。

An integrated systematic study has been carried out on the earth's environmental and metallogenic histories, in the hope of verifying and further developing the author's original working-hypothesis linking derivation of both the syngenetic Kuroko-type heavy metal deposits and the crude oil deposits in the Miocene Green Tuff region of Japan to a common sedimentary organic source material named PUMOS presumably accumulated in association with an intense oceanic anoxia in the back-arc basin of paleo-Japan Sea. Present intensive sulfur isotope studies on some major biological mass extinction boundaries (PC/C, F/F, G/L, P/T, C/T and K/T) and also on some major time-restricted strataboud-type syngenetic mineralizations (Kieslager cupriferous pyritic deposits, bedded manganese deposits, and Kuroko-type massive sulfide deposits) from various localities in the world have revealed that these biological and metallogenetic events almost always concur with, or sometimes predate and/or postdate, the … More occurrence of intense oceanic anoxia throughout the geologic history This finding would provide evidence for the larger-than-expected intimate genetic relationship of the earth's environmental evolution to the economically important heavy metal mineralizations as well as hydrocarbon resource formation. Another important result is a fundamental contribution to the sulfur isotope stratigraphy. A number of analyses for the SSS (structurally substituted sulfate) of modern biogeic carbonate shells and skeletons (mollusks, brachiopods, urchins and corals) have yielded isotopic compositions similar to the average values of ambient dissolved seawater sulfates. This would provide sound evidence that the biogenic SSS in the geologic record can be utilized as a good proxy for the isotopic composition of ancient coeval seawater sulfate. Applying the SSS-based isotope stratigraphy to limestone sections (Cambro-Ordovician, Devonian, Carboniferous, Permo-Triassic, Cretaceous) from various localities in Asia and Europe, additional information has been successfully obtained to make up for the higher-order oceanic isotope evolution and the marine redox environmental change during the Phanerozoic time Less