安庆师范学院学报：自然科学版2012，Vol.18Issue(4)：88-90,103,4.
川东北宋家洞石笋氧碳同位素及锶含量突变分析
Abrupt Change Analyses of Oxygen, Carbon Isotope Values and Sr Contents in a Stalagmite Retrieved from Songjia Cave, NE Sichuan
曹益瑰 1李娇 1汤静2
作者信息
- 1. 湖南师范大学资源与环境科学学院,湖南长沙410081
- 2. 华南师范大学地理科学学院,广东广州510631
- 折叠
摘要
Abstract
We analyze the abrupt changes of oxygen, carbon isotope values and Sr contents in stalagmite S J3 retrieved from Songjia Cave, Central China. Some conclusions are given below : ( 1 ) Oxygen isotope values record the transition from Last Glacial Maximum to Heinrich Event One period;(2) Carbon isotope values record the transition from H1 cold period to BoilingAllerod warm period ; (3) The correlation between Carbon isotope values and Sr contents indicate that the local East Asian summer monsoon were in - phase with the winter monsoon during 19.8 - 15.3ka while out of phase during 15.3 - 14.8ka. It' s obvious that stalagmite SJ3 records the palaeoclimate changes between colddry and warmwet conditions while different climate proxies were dissimilar in sensitivities with regard to climate changes.关键词
氧碳同位素/锶含量/突变/Mann—Kendall/testKey words
oxygen and carbon isotopes/Sr contents/abrupt change/Mann - Kendall test分类
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曹益瑰,李娇,汤静..川东北宋家洞石笋氧碳同位素及锶含量突变分析[J].安庆师范学院学报：自然科学版,2012,18(4):88-90,103,4.
