The Djebel El Hamra Pb-Zn-Ba-Sr (Hg) deposits in northern Tunisia are hosted in a post-nappe anticline with a core of a Triassic evaporite diapir affected by the NE–SW-trending Ghardimaou-Cap Serrat lineament. Three stages of mineralization occurred in the Triassic dolostone: stages I and II caused alternating deposition of sulfate (Ba, Sr) and sulfide (sphalerite, galena) minerals; stage III formed late-stage calcite-marcasite-cinnabar. Zebra textures record the syntectonic transition from compression to extension in the Late Tortonian-Messinian interval. Two fluid end-members were involved in sulfate deposition: one low-salinity (L1, ~3 wt% eq. NaCl) fluid, probably from a meteoric origin, and a Na-Ca-Cl brine (L2, ~22 wt% eq. NaCl) solution which originated from the Triassic diapiric source. A third end-member fluid (L3) with long residence time in the basement was also involved in the Pb-Zn deposition. The δ³⁴S values from a cluster of sulfates around +16‰, show a Triassic evaporate source. The sulfur in sphalerite resulted from bacterial sulfate reduction (BSR); however, crystallization in a closed system resulted in a range of δ³⁴S between +1.6 and +26.5‰. The δ³⁴S values in galena (−28.4 to +8.2‰) are consistent with a BSR and thermochemical sulfate reduction (TSR) origin of the sulfur. Secondary ion mass spectrometry (SIMS) lead isotope data in galena (²⁰⁷Pb/²⁰⁴Pb: 15.595 to 16.193, ²⁰⁶Pb/²⁰⁴Pb: 18.673 to 18.939, ²⁰⁸Pb/²⁰⁴Pb: 38.330 to 40.572) point to local contributions (sedimentary and Cenozoic magmatic rocks) to the main source from the Precambrian basement. Ore deposition occurred at a depth of about 2 km at temperatures between 80 and 250 °C. A shallow magmatic heat source was the cause of these thermal fluctuations.

突尼斯北部的Djebel El Hamra Pb-Zn-Ba-Sr（Hg）矿床位于一个喷水后的背斜中，其芯部为三叠纪蒸发斜di的核心，受到NE-SW趋势Ghardimaou-Cap Serrat的影响。三叠纪白云岩中发生了三个阶段的成矿作用：第一阶段和第二阶段引起硫酸盐（Ba，Sr）和硫化物（闪锌矿，方铅矿）矿物的交替沉积。第三阶段形成了后期方解石-菱镁矿-朱砂。斑马纹理记录了晚Tortonian-Messinian区间从压缩到伸展的构造过渡。硫酸盐沉积涉及两个流体端部成员：一种可能来自陨石来源的低盐度（L1，约3 wt％eq。NaCl）流体，和一种Na-Ca-Cl盐水（L2，约22 wt％eq） NaCl）解决方案，该解决方案源自Triassic diapiric来源。在地下室中具有较长停留时间的第三种末端流体（L3）也参与了Pb-Zn的沉积。δ来自+ 16‰附近的硫酸盐簇的³⁴ S值显示为三叠纪蒸发源。闪锌矿中的硫是由于细菌硫酸盐还原（BSR）而产生的。然而，结晶在封闭系统中产生了范围δ的³⁴ 1.6和26.5 +‰之间S上。的δ ³⁴在方铅矿的价值观（-28.4至+ 8.2‰）是具有BSR和硫的热化学硫酸盐还原（TSR）原点相一致。二次离子质谱法（SIMS）的方铅矿铅同位素数据（²⁰⁷ PB / ²⁰⁴的Pb：15.595到16.193，²⁰⁶的Pb / ²⁰⁴的Pb：18.673到18.939，²⁰⁸的Pb / ²⁰⁴铅：38.330至40.572）指出了前寒武纪基底对主要来源的局部贡献（沉积岩和新生代岩浆岩）。在80至250°C的温度下，矿石沉积发生在约2 km的深度。浅层岩浆热源是这些热波动的原因。