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首页> 外文期刊>Economic geology and the bulletin of the Society of Economic Geologists >CEMENTATION, HYDROTHERMAL ALTERATION, AND Zn-Pb MINERALIZATION OF CARBONATE BRECCIAS IN THE IRISH MIDLANDS: TEXTURAL EVIDENCE FROM THE COOLEEN ZONE, NEAR SILVERMINES, COUNTY TIPPERARY--A REPLY
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CEMENTATION, HYDROTHERMAL ALTERATION, AND Zn-Pb MINERALIZATION OF CARBONATE BRECCIAS IN THE IRISH MIDLANDS: TEXTURAL EVIDENCE FROM THE COOLEEN ZONE, NEAR SILVERMINES, COUNTY TIPPERARY--A REPLY

机译：爱尔兰中部碳酸盐岩角质层的胶结，水热蚀变和Zn-Pb矿化：酷冷带，近银矿和县大风口的织纹证据—一份

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Sir: We are delighted to respond to the comments of Reed and Wallace on our paper on the origin of breccia-hosted base-metal mineralization in the Irish ore field (Lee and Wilkinson, 2002). Reed and Wallace's thesis is that the mineralized breccias we have described within the Mississippian Waulsortian Limestone Formation at Cooleen are not of sedimentary origin and therefore, by extension, that synsedimentary breccias do not exist elsewhere in the ore field. If correct, one of a number of lines of evidence that have been used to infer a near-sea-floor origin for at least a component of sulfide mineralization in Ireland-that of reworked clasts of sulfide within sedimentary breccias-would he invalidated. Contrary to the suggestion of Reed and Wallace, the existence of sedimentary breccias spatially associated with mineralization in the Waulsortian is universally accepted in the literature. Mine-based investigations that include underground observations as well as drill core data and sedimentological studies have concluded that the stratiform, wedge-shaped breccia bodies commonly developed within the Waulsortian Limestone facies are sedimentary debris flows of Courceyan age (Boyce et al., 1983; Taylor, 1984; Andrew, 1986; Clifford et al., 1986; Somerville et al., 1992). Submarine fault scalp sedimentary breccias are common in sediment-hosted Zn-Pb deposits (e.g., Goodfellow et A., 1993) and display the same characteristics as the breccias at Cooleen.
机译：主席先生：我们很高兴回应里德和华莱士在我们关于爱尔兰矿场角砾岩层状贱金属矿化成因的论文中的评论（Lee和Wilkinson，2002）。里德（Reed）和华莱士（Wallace）的论点是，我们在Cooleen的密西西比州Waulsortian石灰岩地层中描述的矿化角砾岩不是沉积成因的，因此，从广义上讲，同沉积角砾岩在矿场的其他地方不存在。如果是正确的话，那么在爱尔兰，至少有一部分硫化物矿化成分已被用来推断近海底成因的证据之一，即沉积角砾岩中返工的硫化物碎片的证据，他将无效。与里德（Reed）和华莱士（Wallace）的建议相反，Waulsortian中与矿化作用在空间上相关的沉积角砾岩存在于文献中。包括地下观测以及钻芯数据和沉积学研究在内的基于矿山的调查得出的结论是，通常在Waulsortian石灰岩相中发育的层状楔形角砾岩体是库尔西扬时代的沉积泥石流（Boyce等人，1983年;泰勒（Taylor），1984;安德鲁（Andrew），1986;克利福德（Clifford）等人，1986;萨默维尔（Somerville）等人，1992）。海底断层头皮沉积角砾岩在沉积物沉积的Zn-Pb沉积物中很常见（例如Goodfellow等人，1993），并且表现出与库林角砾岩相同的特征。

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