The geotectonic setting, age and mineral deposit inventory of global layered intrusions

In the present paper, we have compiled data on 565 layered and differentiated igneous intrusions globally, documenting their (i) location, (ii) age, (iii) size, (iv) geotectonic setting, (v) putative parent magma(s), (vi) crystallisation sequence, (vii) mineral deposits. Most studied occur in Russia (98), Australia (72), Canada (52), Finland (37), South Africa (38), China (33), Brazil (31). Notable clusters of: Archaean (~ 15%) include those of McFaulds Lake Area (commonly known as Ring Fire, Canada), Pilbara Yilgarn cratons (Australia), Barberton (South Africa); Proterozoic 56%) Giles Event Halls Creek Orogen Kaapvaal craton its margin Botswana), Kola Karelia (Finland Russia), Midcontinent Rift (Canada USA); Phanerozoic 29%) eastern Greenland, Central Asian Orogenic Belt (China Mongolia) Emeishan large province (China). Throughout geological time, occurrence many correlate broadly with amalgamation break-up supercontinents, yet size inventory shows no obvious secular changes. our compilation, 337 possess one or more types occurrences, including: 107 stratiform PGE reef-style mineralisation, 138 Ni-Cu-(PGE) contact-style 74 Fe-Ti-V-(P) horizons, ≥ 35 chromitite seams. Sill-like chonolithic extensional tectonic settings spanning time are most prospective for mineralisation. contrast, deposits prevalent larger, commonly lopolithic that generally >1 Ga age 75%). Stratiform horizons common central upper portions larger intrusions, occurring Phanerozoic. Approximately 80% seams older than 1 > 50% them also contain reefs. Based distribution relatively well explored terranes (e.g., Finland, Africa, Western Australia), propose remain to be discovered Earth, particularly poorly inaccessible regions Australia, Russia, Antarctica, America, northern Canada.