Kim Jinwook, Dong Hailiang, Seabaugh Jennifer, Newell Steven W, Eberl Dennis D
Naval Research Laboratory, Seafloor Sciences Branch, Stennis Space Center, MS 39529, USA.
Science. 2004 Feb 6;303(5659):830-2. doi: 10.1126/science.1093245.
Temperature, pressure, and time have been thought to control the smectite-to-illite (S-I) reaction, an important diagenetic process used for petroleum exploration. We demonstrated that microorganisms can promote the S-I reaction by dissolving smectite through reduction of structural Fe(III) at room temperature and 1 atmosphere within 14 days. This reaction typically requires conditions of 300 degrees to 350 degrees C, 100 megapascals, and 4 to 5 months in the absence of microbial activity. These results challenge the conventional concept of the S-I reaction and of reaction kinetic models.
温度、压力和时间一直被认为控制着蒙脱石向伊利石（S-I）的转化反应，这是石油勘探中一个重要的成岩过程。我们证明，微生物可以在室温及1个大气压下，通过还原结构中的铁（III）溶解蒙脱石，从而在14天内促进S-I反应。在没有微生物活动的情况下，该反应通常需要300摄氏度至350摄氏度、100兆帕的条件以及4至5个月的时间。这些结果挑战了S-I反应及反应动力学模型的传统概念。
