山东张里金矿床是与碱性次火山岩有关的、赋存于隐爆角砾岩体内的石英-冰长石-萤石型中低温热液矿床.岩石化学、稀土元素和同位素分析结果表明:控矿岩石系列分为:①高钾钙碱性岩石系列,SiO2平均含量为57.6％,稀土总量为373.98×10-6～297.43×10-6,δEu为0.85 ～0.82,Sr=0.704 41；②高钾碱性岩系列,SiO2平均含量为56.65％,稀土总量为371.19×10-6～41.62×10-6,8Eu为0.89 ～0.93,Sr=0.717 11.这两种控矿岩石系列分别由两个不同的幔源岩浆在上升过程中,各自经过长时期的分异作用,并且混染了部分壳源物质而成,其含矿热液来自碱性次火山岩.%Zhangli gold deposit is a quartz-ice feldspar-fluorite type middle-low temperature hydrothermal deposit hosted in concealed explosive breccia pipe related with alkaline sub-volcanic rocks. The results of rock chemistry, REE and isotope analysis indicate that the ore-controlling rock can be divided into two series including; (D high-K calc-alkaline rock series, which SiO2 content is 57. 6% on average, total rare earth is 373.98 x 10 ~6 ~ 297.43 x 10'6, 8Eu is 0.85 -0.82, Sr is 0.704 41; (D high-K alkaline rock series, which SiO2 content is 56.65% on average, total rare earth is 371. 19 xlO~6-41. 62 x 10~6, 8Eu is 0. 89 -0.93, Sr is 0. 717 11. The two rock series were formed by different mantle magma, which experienced long differentiation, and mixed partial crustal material in rising process, and the ore-bearing hydrothermal solution came from alkaline sub-volcanic rocks.
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