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大火成岩省(LIPs)指的是短时(<1~3Ma)喷发形成的巨量(百万立方千米量级)岩浆岩,其主体是玄武质岩浆,这是地幔岩浆活动在地表最宏伟的展现,具有极其重要的环境(气候变化、生物灭绝等)和资源(超大型金属矿床等)效应。位于印度中西部的德干玄武岩(Deccan Traps)是世界上最大的LIPs之一,其喷发时代(~65Ma)与白垩纪-古近纪生物灭绝时间一致,
Large igneous provinces (LIPs) refer to massive (millions of cubic kilometers) magmatic rocks formed by short-term (<1 ~ 3Ma) eruptions and are mainly composed of basaltic magma, which is the mantle of magmatic activity on the surface of the earth’s most magnificent Has the extremely important environment (climate change, extinction, etc.) and the resource (super-large metal deposit etc.) effect. The Deccan Traps, located in central and western India, is one of the largest LIPs in the world. Its eruption age (~ 65 Ma) coincides with the Cretaceous-Paleozoic extinction time,