1. Recently the study of maar lake and varve chronology is becoming a new field for palaeoclimate research.
火山活动是影响全球变化的重要因素之一，玛珥湖和纹泥年代学是近年来古气候研究的新领域。
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2. Detailed investigations were carried out on the upper undisturbed sediments from Erlongwan maar lake, NE China, which are better annually laminated sediments(varve).
通过对东北二龙湾玛珥湖顶部无扰动岩心显微研究，证明此岩心发育有良好的年纹层。
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3. The aeolian silty sand in shale can provide good guide to study of paleoclimate about lacustrine shale and varve, and to reconstruct sedimentary environment of paleolake accurately.
4. The aeolian silty sand in shale can provide good guide to study of paleoclimate about lacustrine shale and varve, and to reconstruct sedimentary environment of paleolake accurately.
