GEOLOGY
GEOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Carbonate rocks can be not only source rocks (mainly argillaceous carbonate rocks), but also reservoirs (mainly carbonate rocks with fewer clay minerals) (Palacas, 1984, Palacas, 1988, Li et al., 1998b, Zhang et al., 2002a, Qin et al., 2005).
Detailed explanation-2: -Carbonate rocks are also a class of sedimentary rocks that are composed primarily of carbonate minerals. The two major types of carbonate rocks are limestone (CaCO3) and dolostone, primarily composed of the mineral dolomite (CaMg(CO3)2).
Detailed explanation-3: -Source rocks are rocks that contain sufficient organic material to create hydrocarbons when subjected to heat and pressure over time. Source rocks are usually shales or limestones (sedimentary rocks).
Detailed explanation-4: -Source rocks are commonly shales and lime mudstones, which contain significant amount of organic matter [2].