The greenstone belt and metamorphosed microclastic rock\|type superlarge gold deposits in China are hosted in metamorphic rocks and later intrusive bodies. Sedimentation, regional metamorphism and mineralization contr...The greenstone belt and metamorphosed microclastic rock\|type superlarge gold deposits in China are hosted in metamorphic rocks and later intrusive bodies. Sedimentation, regional metamorphism and mineralization contributed a lot to the formation of the deposits, so did remelting magmatic process to some deposits, but the deposits were finally formed by reworking processes. The key factor leading to the formation of superlarge gold deposits is the reworking intensity, which for superlarge gold deposits is reflected by the large\|scale reworked source rocks and even ore materials of various sources, strongly oxidized ore\|forming fluids with a long and repeated active history and stable geothermal heat current. The factor which decides the reworking intensity is the network consisting of structures of different classes.展开更多
Taihu Lake is a well-known economic lake in China, and is also a famous scenic lake all over the world (Fig. 1). Scientists have long paid attention to the origin of Taihu Lake and put forward several hypotheses for i...Taihu Lake is a well-known economic lake in China, and is also a famous scenic lake all over the world (Fig. 1). Scientists have long paid attention to the origin of Taihu Lake and put forward several hypotheses for its formation, for example, the river-derivation hypothesis, the tectonic subsidence hypothesis, the lagoon hypothesis etc., and recently the展开更多
The region of our research lies between the Longchuan (龙川) River and the Binlang (槟榔) River. Here Cenozoic volcano rocks are widely developed. They are mostly basalts, though petrographically different. According ...The region of our research lies between the Longchuan (龙川) River and the Binlang (槟榔) River. Here Cenozoic volcano rocks are widely developed. They are mostly basalts, though petrographically different. According to the sequence of volcanic eruptions and the fossils in sedimentary strata, it is suggested that these volcanic eruptions took place in the Late Tertiary and the Quaternary. The Quaternary eruptions may be further divided into 4 subperiods,展开更多
文摘The greenstone belt and metamorphosed microclastic rock\|type superlarge gold deposits in China are hosted in metamorphic rocks and later intrusive bodies. Sedimentation, regional metamorphism and mineralization contributed a lot to the formation of the deposits, so did remelting magmatic process to some deposits, but the deposits were finally formed by reworking processes. The key factor leading to the formation of superlarge gold deposits is the reworking intensity, which for superlarge gold deposits is reflected by the large\|scale reworked source rocks and even ore materials of various sources, strongly oxidized ore\|forming fluids with a long and repeated active history and stable geothermal heat current. The factor which decides the reworking intensity is the network consisting of structures of different classes.
基金Project supported by the National Natural Science Foundation of China.
文摘Taihu Lake is a well-known economic lake in China, and is also a famous scenic lake all over the world (Fig. 1). Scientists have long paid attention to the origin of Taihu Lake and put forward several hypotheses for its formation, for example, the river-derivation hypothesis, the tectonic subsidence hypothesis, the lagoon hypothesis etc., and recently the
文摘The region of our research lies between the Longchuan (龙川) River and the Binlang (槟榔) River. Here Cenozoic volcano rocks are widely developed. They are mostly basalts, though petrographically different. According to the sequence of volcanic eruptions and the fossils in sedimentary strata, it is suggested that these volcanic eruptions took place in the Late Tertiary and the Quaternary. The Quaternary eruptions may be further divided into 4 subperiods,
