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PETM（古新世-始新世极热事件）发生在距今约5600万年前，是新生代以来最强烈的一次全球快速升温事件。在此期间，大量轻碳（13C同位素含量较少的碳）从岩石圈释放到大气海洋系统中，造成了地球表层碳库中的碳同位素组分发生了显著的负漂。学者们认为PETM时期的碳释放触发了（或者至少加剧了）这次全球升温。PETM持续了大约20万年，其中碳释放持续的时间大约为1000-50000年。在千年到万年的时间尺度...
Changes in alkenone and alkenoate distributions during acclimatization to salinity change in Isochrysis galbana: Implication for alkenone-based paleosalinity and paleothermometry
alkenone Isochrysis acclimatization paleothermometry saleosalinityon
2017/4/11
A cultured strain of Isochrysis galbana UTEX LB 2307 was grown at 20°C and 15°C under salinity of 35‰, 32‰,
27‰, 20‰, and 15‰, and analyzed for long chain (C37–C39) alkenones and (C37–C38) alkyl alke...
Systematic change in relative stabilities of REE-humic complexes at various metal loading levels
humic substances stability constants metal loading REE pattern binding site
2017/8/9
Complexation of rare earth elements (REEs) with humic substances (HSs) at various REE loading levels was studied by solvent extraction and equilibrium dialysis methods coupled with inductively coupled...
On the change of 3He/4He ratios in hot spring gases after The Iwate-Miyagi Nairiku Earthquake in 2008
helium isotopes noble gas earthquake epicenter Japan
2017/8/10
The Iwate-Miyagi Nairiku Earthquake in 2008 (M7.2) occurred on June 14th 2008 in the northeastern Japan, Iwate Prefecture. We collected water and gas samples in hot springs from seven localities aroun...
期刊信息
篇名
Geochemistry of Rare-earth Elements and its Significance in the Study of Climatic and Envirnonmental Change in Barrow, Arctic Alaska.
语种
英文
撰写或编译
撰写
作者
Yang Weili,,et al.
第一作者单位
中国科学院地理科学与资源研究...
Climate change affects Southern Ocean carbon sink（图）
Climate change greenhouse gases carbon
2007/5/22
18/05/2007，New research by the University of East Anglia provides the first evidence that recent climate change has weakened one the Earth’s natural carbon ’sinks’.Published this week in the journal S...