Ultramafic-hosted volcanogenic massive sulfide deposits (UM-VMS) located in the Havana-Matanzas ophiolite (Cuba) are the only known example of this type of mineralization in the Caribbean realm. UM-VMS from Havana-Matanzas are enriched in Cu, Ni, Co, Au, and Ag. The mineralization consists of massive sulfide bodies mostly composed of pyrrhotite and hosted by serpentinized upper mantle peridotites. Chemical composition of unaltered cores in Cr-spinel grains found within the massive sulfide mineralization and in the peridotite host indicates formation in the fore-arc region of the Greater Antilles volcanic arc. A first stage of serpentinization probably took place prior to the sulfide mineralization event. The UM-VMS mineralization formed by the near-complete replacement of the silicate assemblage of partially serpentinized peridotites underneath the seafloor. The sequence of sulfide mineralization has been divided into two stages. The first stage is characterized by a very reduced hydrothermal mineral assemblage consisting of pyrrhotite, Co–Ni–Fe diarsenides, chalcopyrite, Co-rich pentlandite, and electrum. In the second stage, pyrite and Co–Ni–Fe sulfarsenides partially replaced pyrrhotite and diarsenides, respectively, under a more oxidizing regime during the advanced stages of ongoing serpentinization. The proposed conceptual genetic model presented here can be useful for future exploration targeting this type of deposit in the Caribbean region and elsewhere.

位于哈瓦那-马坦萨斯蛇绿岩（古巴）的超镁铁质火山成因块状硫化物矿床（UM-VMS）是加勒比地区此类矿化的唯一已知例子。来自 Havana-Matanzas 的 UM-VMS 富含铜、镍、钴、金和银。矿化由块状硫化物体组成，主要由磁黄铁矿组成，并以蛇纹石化的上地幔橄榄岩为主体。在块状硫化物矿化和橄榄岩主体中发现的铬尖晶石晶粒中未改变的岩心的化学成分表明形成于大安的列斯群岛火山弧的弧前区域。蛇纹石化的第一阶段可能发生在硫化物矿化事件之前。UM-VMS 矿化是由海底下部分蛇纹石化橄榄岩的硅酸盐组合几乎完全替代而形成的。硫化物成矿序列分为两个阶段。第一阶段的特征是由磁黄铁矿、Co-Ni-Fe二砷化物、黄铜矿、富钴镍铬铁矿和金银矿组成的非常减少的热液矿物组合。在第二阶段，黄铁矿和 Co-Ni-Fe 硫砷化物分别部分取代了磁黄铁矿和二砷化物。这里提出的概念遗传模型可用于未来在加勒比地区和其他地方针对此类矿床的勘探。第一阶段的特征是由磁黄铁矿、Co-Ni-Fe二砷化物、黄铜矿、富钴镍铬铁矿和金银矿组成的非常减少的热液矿物组合。在第二阶段，黄铁矿和 Co-Ni-Fe 硫砷化物分别部分取代了磁黄铁矿和二砷化物。这里提出的概念遗传模型可用于未来在加勒比地区和其他地方针对此类矿床的勘探。第一阶段的特征是由磁黄铁矿、Co-Ni-Fe二砷化物、黄铜矿、富钴镍铬铁矿和金银矿组成的非常减少的热液矿物组合。在第二阶段，黄铁矿和 Co-Ni-Fe 硫砷化物分别部分取代了磁黄铁矿和二砷化物。这里提出的概念遗传模型可用于未来在加勒比地区和其他地方针对此类矿床的勘探。在正在进行的蛇纹石化的晚期阶段，处于更加氧化的状态。这里提出的概念遗传模型可用于未来在加勒比地区和其他地方针对此类矿床的勘探。在正在进行的蛇纹石化的晚期阶段，处于更加氧化的状态。这里提出的概念遗传模型可用于未来在加勒比地区和其他地方针对此类矿床的勘探。