%0 Journal Article
%T Influences of temperature and saturation states on the precipitation rate of calcium carbonates in seawater I. Mg-calcite<br>温度和过饱和度对海水中碳酸钙沉淀速率的影响I.镁方解石
%A QU Cheng-li
%A LIU Gang
%A LU Bo
%A <br>瞿成利
%A 刘刚
%A 路波
%J 海洋科学
%D 2009
%I 
%X Using the constant addition system, the precipitation of Mg-calcite in seawater was experimentally investigated at 5, 15, and 25 ℃. It was observed that, at each temperature, the relation between Mg-calcite precipitation rates and saturation states can be well expressed in the kinetic form of R=k(Ω-1)<'n> or Log(R)=nLog(Ω-1)+Log(k). The change of pCO2 would result in the remarkable variation of Mg-calcite precipitation rates, while it would not affect the kinetic expression of Mg-calcite precipitation. On the other hand, there are remarkable discrepancies among the kinetic expressions obtained at different temperatures, which indicate the thermodynamic relevance of the kinetic process of Mg-calcite precipitation.
%K seawater
%K Mg-calcite
%K precipitation rate
%K temperature
%K saturation states<br>海水
%K 镁方解石
%K 沉淀速率
%K 温度
%K 过饱和度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=2D9C75573FA3E416&jid=DFE7B94EB76B8F26135C9890832CEF6A&aid=87B6B4B3DC7B798A3D7B0D83DD5ADADF&yid=DE12191FBD62783C&vid=27746BCEEE58E9DC&iid=DF92D298D3FF1E6E&sid=EA389574707BDED3&eid=771469D9D58C34FF&journal_id=1000-3096&journal_name=海洋科学&referenced_num=0&reference_num=20