摘要
The gold deposits of Triassic period in the northwestern Guangxi are all located in the marine, fine -grained ,fragmental rock series containing organic matter ,i.e .the distribution districts of black rock series . The fine-grained gold deposits occur in organic matter -bearing C, D,E,or D,E divisions of the classical Bouma sequences. The evolution degree of organic matters through oil window stage reached the over -mature degree. Both the bio-sources of the organic matters and the distribution of gold in the organic matters disclose the close association between gold , living beings and organic matters . The thermal evolution of organic matters led to the gold to be activized . migrated and enriched , and finally formed gold deposits in the fault belt and crushed zone of black rock series .
The gold deposits of Triassic period in the northwestern Guangxi are all located in the marine, fine -grained ,fragmental rock series containing organic matter ,i.e .the distribution districts of black rock series . The fine-grained gold deposits occur in organic matter -bearing C, D,E,or D,E divisions of the classical Bouma sequences. The evolution degree of organic matters through oil window stage reached the over -mature degree. Both the bio-sources of the organic matters and the distribution of gold in the organic matters disclose the close association between gold , living beings and organic matters . The thermal evolution of organic matters led to the gold to be activized . migrated and enriched , and finally formed gold deposits in the fault belt and crushed zone of black rock series .
基金
The paper is supported by the National Natural Science Foundation of China
