Analysis of the Distribution and Microscopic Characteristics and Disintegration Characteristics of Carbonaceous Rocks: A Case Study of the Middle Devonian Luofu Formation in Western Guangxi of China

Figure 5

Field investigation of carbonaceous rocks in the Luofu formation, Western Guangxi province. (a) Combination of silty mudstone and carbonaceous mudstone. (b) Pyrite-enriched layer in carbonaceous mudstone. (c) Iron and manganese nodules in carbonaceous mudstone. (d) Precipitated from semiweathered carbonaceous rocks. (e) Horizontal bedding structure in semiweathered cleavage carbonaceous shale. (f) Carbonaceous mudstone.

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