PEER REVIEW PAPER

Peer Review Paper

Peer Review Paper

a. Is the overall purpose of the paper clear to you?

The overall purpose of the paper is very clear. It describes the importance of the clay minerals for carbon sequestration in the greenhouse ocean. The bulk of the carbon in the surface of the earth in the marine environment appears in the continental sediments from the edge of a fine-grained mineral, whose properties depend on the climatic conditions of the Continental.There are many non-silicates that form under similar conditions to proper' clay minerals, and which are likely to have been part of a mineral origin of life. His main topic, though, is hydrothermal mineralization at crustal spreading centers. Here, are places on the Earth today that may to some extent at least, resemble sites of active mineral synthesis on the early Earth. Climate change is linked to a global energy model dependent oil, coal and gas. Burning fossil fuels releases carbon dioxide from (CO2) into the atmosphere. Atmospheric concentrations of CO2 have been risen to the 379 ppm (measured at Mauna Loa, Hawaii) in March 2004, 35% above pre-industrial levels, which atmospheric concentration was 280 ppm (Zhu et al, 2006, 4933-4949). Because the issue of carbon capture and sequestration appears every time more as a possible alternative to mitigation for different governments, it is necessary to highlight some of the critical constraints and concerns raised by this technology.

b. Does this paper adequately analyze the experimental data?

Yes. This paper analyzes the experimental data very adequately. The data show that not only looks homogeneous mudstone interval of OAU 3 on the site of ODP 959 to be surprisingly complex and highly variable geochemical records of carbon sequestration, but changes in the content directly coincides with changes in land received smectite mineral-related and substrate interacts directly with the redox conditions. The combination silicon and aluminum for the formation silica-deficient; mineral deficiency is only possible when extensive erosion has removed other more soluble cations such as calcium, potassium , iron, magnesium (Arnarson and Keil, 2007, from 3545 to 3556). However, erosion. effects associated with heavy rains, some continental plains, there may be lead to moderate weather conditions locally and accumulation or cations such as in lakes, for example, these conditions are favorable for the formation of the characteristic function smectite water main. or the formation of smectite increases continent.

a. Does every paragraph and sentence in the paper clearly support the argument?

Almost every paragraph and sentence in the paper clearly supports the main argument of the paper. Such as in starting of the paper, the authors says that the relative contribution of the marine versus terrestrial influence is unresolved but likely holds the key to a more fundamental understanding of the underlying mechanisms and potential capacities of carbon sequestration in marine systems. This means that the movement of clay minerals is one of the more important soil formation processes. Clay minerals are very small particles even less than 0.002 millimeters that have a wide range of chemical composition ...