Carbonate-hosted lead-zinc ore deposits and pyrite thus form. Commonly MVT deposits form by the combination of hydrocarbon pyrolysis liberating zinc-lead ions and sulfur to form an acidic solution which dissolves the host carbonate formation and replaces it with massive sulfide accumulations. This may also take the morphology of fault-hosted stockworks, massive tabular replacements and so forth. Porous limestones may form disseminated ores, however most MVT deposits are massive sulfides with knife-like margins between carbonate and sulfide mineralogies. Ore minerals in carbonate replacement deposits are typically lead sulfide, galena, and zinc sulfide sphalerite. Weathered equivalents form anglesite, cerussite, smithsonite, hydrozincite and secondary galena and sphalerite
The Galena Territory, Illinois Elementary School, Scaled Mound Junior High School, and Scales Mound High School. The Galena Territory, Illinois The Galena Territory is a census-designated place in Jo Daviess County, Illinois, United States. Its population was 1,058 as of the 2010 census. The community consists of a private development located several miles southeast of downtown Galena. The Territory, which is managed by a homeowners association, has set aside of protected recreational land. The remainder is filled with low-density residential development and Eagle Ridge Resort & Spa. As of August 2017, there were 4,082 property owners, 554 permanent residences, and 1,675 vacation residences. The