摘要
田洋玛珥湖位于我国雷州半岛东南部,是一个已经消亡的古玛珥湖。通过对位于古玛珥湖中心部位、具有完整而连续沉积的TY-2井岩心的仔细观察,认为该岩心38.23 m以上层段属于湿地沉积序列,并揭示了我国华南热带地区50 kaBP以来经历了3期主要气候变化,相对着温暖的玉木冰期中期、寒冷的玉木冰期后期和温暖湿润的冰后期。这些气候变化与日本琵琶湖、加勒比海和南海北部具有较好的可比性。
Tianyang Maar Lake is an extinct ancient maar lake,and located in the southeast of the Leizhou Peninsula.Based on detailed observation of the integrated and continuous core of TY-2 well in the middle of the ancient maar lake,the wetland depositional sequences can be identified in the interval of 1.50~38.23 m core depth.Three paleoclimatic stages since 50 kaBP are revealed,which are warm middle Würm Glacial Stage,cold late Würm Glacial Stage,and warm-wet post-glacial stage.These climate changes are well comparable to the Pipa Lake,Caribbean Sea and the northern South China Sea.
出处
《海洋地质动态》
2006年第7期26-29,共4页
Marine Geology Letters
关键词
湿地
沉积记录
玉木冰期
田洋玛珥湖
wetland
depositional records
Würm Glacial Stage
Tianyang Maar Lake
