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| 碳酸盐岩在全球碳循环过程中的作用 | |
| 引用本文： | 翁金桃.碳酸盐岩在全球碳循环过程中的作用[J].地球科学进展,1995,10(2):154-158. |
| 作者姓名： | 翁金桃 |
| 作者单位： | 地矿部岩溶地质研究所 |
| 摘 要： | 碳酸盐岩是地球上最主要的碳库，开展全球变化研究应重视碳酸盐岩在岩溶作用过程中的地球化学动力学研究。这方面的科学问题有二个。第一是关于全球碳酸盐岩的碳库容量问题，尚须利用全球沉积岩和碳酸盐岩数据库，根据全球地质历史时期碳酸盐岩的分布面积、厚度和岩石成分等进行重新计算。其次是关于碳酸盐岩在岩溶作用过程中对全球碳循环的动力学贡献问题。一方面碳酸盐岩的溶蚀作用不仅关系到海洋ＣａＣＯ＿３的供给量而影响海洋中碳通量的平衡，而且还可直接回收大气圈中的ＣＯ＿２；另一方面由于钙华的沉积又可向大气圈释放ＣＯ＿２，而影响温空气体的变化。它们构成了大气温室气体源汇关系中不可忽视的一项。 |
| 关 键 词： | 碳酸盐岩 岩溶作用 碳循环 全球变化 |
THE EFFECT OF CARBONATE ROCKS ON GLOBAL CARBON CYCLE |
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| Weng Jintao.THE EFFECT OF CARBONATE ROCKS ON GLOBAL CARBON CYCLE[J].Advance in Earth Sciences,1995,10(2):154-158. | |
| Authors: | Weng Jintao |
| Institution: | Institute of Karst Geology, MGMR Guilin 541004 |
| Abstract: | Regard carbonate rocks as major principal carbon storage in the Earth,not only took decisive effect for global carbon cycle and living evolution during geological history, but also take important effect for global carbon cycle and climatic change due to the corrosion and the sediment of carbonate rocks at present yet. Therefore, must be put a high value on geochemical kinetics study of karst process when carry into practice "IGBP". In the first place, carbon storage volume of global carbonate rocks must be afresh calculated according to the area, thickness and composition of carbonate rocks during geological history by the use of data bank of global sedimentary rock and carbonate rock. Secondly, kinetic contribution for global carbon cycle in karst process of carbonate rocks must bring to attention. On the one hand, the corrosion of carbonate rocks not only is affecting on supply volume of CaCO3 and the balance of carbon flux in the ocean, but also direct retrieves CO2 from the atmosphere;On the other hand ,CO2 is released toward atmosphere due to the deposition of calcareous tufa, which will be affecting variations of greenhouse gas. So that they make up a term not to be ignored relationship between source and converge of atmospheric greenhouse gas. |
| Keywords: | Carbonate rock Karst process Carbon cycle IGBP |
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