Stalagmite; carbon stable isotope;oxygen stable isotope;palaeoclimatic significance

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Approximately 30,000 years ago, long on stable sand dune plant root, passes through the long time the decency, has formed the limestone, after the plant dies, the sand dune unceasing migration, causes these calcifications the limestone to reveal the surface, has formed the stalagmite which the present sees.

大約在3萬年前日韩久久无码视频，長在穩(wěn)定的沙丘上的植物根部，經(jīng)過長時間的風(fēng)化亚洲老年黄色毛片，形成了石灰?guī)r久久一级a级高清片，植物死后，沙丘的不斷移動九九精品视频免费在线观看，使這些鈣化的石灰?guī)r露出地表自拍偷拍一页，形成了現(xiàn)在所看到的石筍。

By comparing the carbon and oxygen isotope records of stalagmite P001 and flowstone P007 with the modern rainfall amount,it can be seen that the oxygen isotopes reflects the strength of precipitation or monsoon in annual to decadal time scale.

通過P001石筍和P007流石的碳欧美性爱黄色视频在线观看、氧同位素記錄與現(xiàn)代降雨記錄的比較可知亚洲中文字幕第一网站，在年際至10年際尺度上，氧同位素反映的為降水或者季風(fēng)的強弱羞羞视频在线观看入口页面。

Through extracting sedimentologic, geomagnetic, geochemical, organic geochemical, pigment, biological and microbiology fossil etc. from loess, periglacial landform, lake landform and sediment, stalagmite, coral and sea landform, the research about Holocene palaeomonsoon in eastern part of China has maken important progress.

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