Genesis and oxygen isotope signature of hematite and magnetite from magmatic-hydrothermal BIF-hosted iron ore_SEG 100

Flávia Cristina Silveira Bragaab, Carlos Alberto Rosièreb, Andreas Packc, Steffen G. Hagemannd, João Orestes Schneider Santose

The formation of the high-grade iron orebodies in the Ediacaran–Cambrian Araçuaí/Brasiliano oroge...

Crustal evolution, tectonics and magma fertility of the Paleoproterozoic Alta Floresta Mineral Province, Amazonian Craton_SEG 100

Veronica Trevisan, Roberto Xavier, Steffen Hagemann, Robert Loucks, João MottaAndreas Petersson, Anthony Kemp, Gonzalo Henríquez, Luis Parra-Avila , Jian-Feng Ga, Rafael Assis

The Alta Floresta Mineral Province (AFMP) constitutes a belt approximately...

Assessment of gold systems in Brazil: majour deposits, camps and future exploration potential_SEG 100

Lydia Lobato, Marco A. Costa, Steffen Hagemann, Rosaline C. Figueiredo e Silva

Gold has a significant historical role in Brazil, since the discoveries of deposits by the so-called bandeirantes initially in Minas Gerais (MG) and Bahia, then Goiás and Mato Gro...

Platinum-group element and Au geochemistry of Late Archean to Proterozoic calc-alkaline and alkaline magmas in the Yilgarn Craton, Western Australia

The Yilgarn Craton of Western Australia is one of the largest Archean cratons in the world and is well-known for its metal endowment. In order to provide new insights into its metallogenic fertility and the nature of the upper mantle that lies underneath the craton, this study...

Nd isotope re-equilibration during high temperature metamorphism across an orogenic belt - Evidence from monazite and garnet

Monazite is a powerful U-Th-Pb geochronometer commonly used to determine the tempo of orogenic processes. As a light rare earth element (LREE)-enriched mineral, monazite also records key information for understanding the behavior of Sm-Nd isotope systematics during tectonotherm...

Formation of early Archean Granite-Greenstone Terranes from a globally chondritic mantle: Insights from igneous rocks of the Pilbara Craton, Western Australia

The continental crust grows via juvenile additions from the mantle. However, the timing of initial continent stabilisation and the rate of subsequent continental growth during the first billion years of Earth history is widely debated, in part due to uncertainty over the compos...

Lithostratigraphic evolution of the Bandamian Volcanic Cycle in central Côte d'Ivoire: Insights into the late Eburnean magmatic resurgence and its geodynamic implications

Late- to post-collisional volcanism in the southern portion of the West African Craton (sWAC) has been described along the paleo-craton margin between the Paleoproterozoic Baoulé-Mossi domain and Archean Kénéma-Man nucleus. New lithostratigraphic and isotop...

Reviews in Economic Geology_2011_Barnes et al

An integrated mineral system model for the gold deposits of the giant Jiaodong province, eastern China

The giant Jiaodong gold province, with more than 5000 t of proven gold resources, is unique in that its Mesozoic gold deposits are hosted in a Precambrian basement block. There has long been debate on the source of gold, the mechanism for its extreme enrichment, and a holistic...

A magmatic barcode for the São Francisco Craton: Contextual in-situ SHRIMP U–Pb baddeleyite and zircon dating of the Lavras, Pará de Minas and Formiga dyke swarms and implications for Columbia and Rodinia reconstructions