Composition Typomorphic Characteristics of Pyrite in Various Genetic Type Gold Deposits

Abstract

Pyrite is an ordinary mineral which appears in different types of deposits and it is an important gold-bearing mineral in gold deposits. Through studying the composition typomorphic characteristics of pyrite, we have achieved some genesis information. However, the study on pyrite composition typomorphism in different genesis gold deposits is rare. The paper studied major and trace elements of pyrite of different genetic deposits by using δFe—δS, δFe/δS—As, (Fe+S)—As and Co—Ni—As plot method and achieved major elements characteristics of different deposits. The results show that each genetic type gold deposit has its typical characteristics. This result are well applicable to genetic studies of pyrite in gold deposits and the distribution characteristics are helpful for studying pyrite in gold deposits

Fluid Inclusions and CHOSPb Isotopes: Implications for the Genesis of the Zhuanshanzi Gold Deposit on the Northern Margin of the North China Craton

“…This indicates that the gold mine had characteristics of multistage mineralization and different orders of different sulfide precipitation. Pyrite is a common and important gold‐bearing mineral in gold deposits (Deditius et al, ; Prolledesma et al ., 2010; Yan et al, ) and is also a penetrating mineral in most gold deposits. It can occur in various mineralization stages (Mao et al ., 1999; Deng et al, ; Liu et al, ).…”

Relationships Between Gold and Pyrite at the Xincheng Gold Deposit, Jiaodong Peninsula, China: Implications for Gold Source and Deposition in a Brittle Epizonal Environment

“…Therefore, trace elements in pyrite have been widely used to constrain the characteristics of ore fluid and explain the genesis of gold deposits (Thomas et al, 2011;Deol et al, 2012;Li et al, 2014;Zhang et al, 2014). Pyrite is the main gold-associated mineral of the Jiaodong gold deposits (Yan et al, 2013), including the Xincheng gold deposit, where gold enrichment is positively correlated with pyrite content. However, quantitative mineralogical and geochemical studies of pyrite, combined with its textural relationship to discrete gold grains that are designed to constrain gold depositional processes, have so far not been conducted in the Jiaodong gold province, although some microscopic native gold has been recorded within pyrite (Li et al, 2003;Yan et al, 2013).…”

“…Pyrite is the main gold-associated mineral of the Jiaodong gold deposits (Yan et al, 2013), including the Xincheng gold deposit, where gold enrichment is positively correlated with pyrite content. However, quantitative mineralogical and geochemical studies of pyrite, combined with its textural relationship to discrete gold grains that are designed to constrain gold depositional processes, have so far not been conducted in the Jiaodong gold province, although some microscopic native gold has been recorded within pyrite (Li et al, 2003;Yan et al, 2013). Du (1988), in particular, reported that micrometer-size inclusions of native gold and electrum are sited along grain boundaries and in microfractures in pyrite and other sulfide minerals, with complex grain relationships.…”

Geogas prospecting for igneous ore deposits covered by regolith: The Zijinshan high-sulfidation epithermal Cu-Au deposit in the Cathaysia Block

“…Trace elements can also serve as indicators of hydrothermal ore deposits 17,[68][69][70] . Moreover, high temperatures favor Co and Ni isomorphism replacing Fe, with Co and Fe being easier to form complete isomorphism 67,71 . In this study, Co/Ni values ranged from 0.09 to 1.42 across cores, altered rocks (excluding ZJal-28), and bedrock, with a mean of 0.62, which is similar to the mean of geogas samples.…”