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• W3203043780 abstract "Large Igneous Provinces, and by extension the mantle plumes that generate them, are frequently associated with platinum-group element (PGE) ore deposits, yet the processes controlling the metal budget in plume-derived magmas remains debated. In this paper, we present a new whole-rock geochemical data set from the 135 Ma Paraná-Etendeka Large Igneous Province (PELIP) in the South Atlantic, which includes major and trace elements, PGE, and Au concentrations for onshore and offshore lavas from different developmental stages in the province, which underwent significant syn-magmatic continental rifting from 134 Ma onwards. The PELIP presents an opportunity to observe magma geochemistry as the continent and sub-continental lithospheric mantle (SCLM) are progressively removed from a melting environment. Here, we use an unsupervised machine learning approach (featuring the PCA, t-SNE and k- means clustering algorithms) to investigate the geochemistry of a set of (primarily basaltic) onshore and offshore PELIP lavas. We test the hypothesis that plume-derived magmas can scavenge precious metals including PGE from the SCLM and explore how metal concentrations might change the metal content in intraplate magmas throughout rifting. Onshore lavas on the Etendeka side of the PELIP are classified as the products of deep partial melts of the mantle below the African craton but without significant PGE enrichment. Offshore lavas on both continents exhibit similarities through the multi-element space to their onshore equivalents, but they again lack PGE enrichment. Of the four onshore lava types on the Paraná side of the PELIP, the Type 1 (Southern) and Type 1 (Central-Northern) localities exhibit separate PGE-enriched assemblages (Ir-Ru-Rh and Pd-Au-Cu, respectively). It follows that there is a significant asymmetry to the metallogenic character of the PELIP, with enrichment focused specifically on lavas from the South American continent edge in Paraná. This asymmetry contrasts with the North Atlantic Igneous Province (NAIP), a similar geodynamic environment in which continent-edge lavas are also PGE-enriched, albeit on both sides of the plume-rift system. We conclude that, given the similarities in PGE studies of plume-rift environments, SCLM incorporation under progressively shallowing (i.e., rifting) asthenospheric conditions promotes the acquisition of metasomatic and residual PGE-bearing minerals, boosting the magma metal budget." @default.
• W3203043780 created "2021-10-11" @default.
• W3203043780 creator A5006290700 @default.
• W3203043780 creator A5025235779 @default.
• W3203043780 creator A5026026792 @default.
• W3203043780 creator A5031254031 @default.
• W3203043780 creator A5085935997 @default.
• W3203043780 date "2021-10-04" @default.
• W3203043780 modified "2023-09-27" @default.
• W3203043780 title "From Continent to Ocean: Investigating the Multi-Element and Precious Metal Geochemistry of the Paraná-Etendeka Large Igneous Province Using Machine Learning Tools" @default.
• W3203043780 cites W103978119 @default.
• W3203043780 cites W109865423 @default.
• W3203043780 cites W1449351719 @default.
• W3203043780 cites W1509335520 @default.
• W3203043780 cites W1511542771 @default.
• W3203043780 cites W1902280165 @default.
• W3203043780 cites W1914890451 @default.
• W3203043780 cites W1941456882 @default.
• W3203043780 cites W1968122867 @default.
• W3203043780 cites W1969859799 @default.
• W3203043780 cites W1971419367 @default.
• W3203043780 cites W1972164452 @default.
• W3203043780 cites W1975382122 @default.
• W3203043780 cites W1977743275 @default.
• W3203043780 cites W1978220312 @default.
• W3203043780 cites W1983426763 @default.
• W3203043780 cites W1987275845 @default.
• W3203043780 cites W1987405372 @default.
• W3203043780 cites W1989036108 @default.
• W3203043780 cites W1989809075 @default.
• W3203043780 cites W1993734272 @default.
• W3203043780 cites W1994834243 @default.
• W3203043780 cites W1997088988 @default.
• W3203043780 cites W1997228875 @default.
• W3203043780 cites W2001397154 @default.
• W3203043780 cites W2002054709 @default.
• W3203043780 cites W2003143784 @default.
• W3203043780 cites W2003199473 @default.
• W3203043780 cites W2005272853 @default.
• W3203043780 cites W2011176927 @default.
• W3203043780 cites W2012348947 @default.
• W3203043780 cites W2012760325 @default.
• W3203043780 cites W2015149055 @default.
• W3203043780 cites W2015167263 @default.
• W3203043780 cites W2015262698 @default.
• W3203043780 cites W2016020127 @default.
• W3203043780 cites W2016361185 @default.
• W3203043780 cites W2019339918 @default.
• W3203043780 cites W2019707119 @default.
• W3203043780 cites W2022648729 @default.
• W3203043780 cites W2025708996 @default.
• W3203043780 cites W2028110446 @default.
• W3203043780 cites W2033091726 @default.
• W3203043780 cites W2035020311 @default.
• W3203043780 cites W2036853755 @default.
• W3203043780 cites W2037380844 @default.
• W3203043780 cites W2039826047 @default.
• W3203043780 cites W2040615406 @default.
• W3203043780 cites W2041657674 @default.
• W3203043780 cites W2045068986 @default.
• W3203043780 cites W2052105902 @default.
• W3203043780 cites W2054934915 @default.
• W3203043780 cites W2056466913 @default.
• W3203043780 cites W2056670083 @default.
• W3203043780 cites W2064372567 @default.
• W3203043780 cites W2066862440 @default.
• W3203043780 cites W2067061797 @default.
• W3203043780 cites W2067134963 @default.
• W3203043780 cites W2068530941 @default.
• W3203043780 cites W2071128523 @default.
• W3203043780 cites W2073099066 @default.
• W3203043780 cites W2073990616 @default.
• W3203043780 cites W2075627347 @default.
• W3203043780 cites W2077212053 @default.
• W3203043780 cites W2078417878 @default.
• W3203043780 cites W2078584777 @default.
• W3203043780 cites W2081151322 @default.
• W3203043780 cites W2082920669 @default.
• W3203043780 cites W2085338101 @default.
• W3203043780 cites W2088715187 @default.
• W3203043780 cites W2088828678 @default.
• W3203043780 cites W2089147623 @default.
• W3203043780 cites W2089645958 @default.
• W3203043780 cites W2090490857 @default.
• W3203043780 cites W2090546440 @default.
• W3203043780 cites W2091869523 @default.
• W3203043780 cites W2093438039 @default.
• W3203043780 cites W2098701409 @default.
• W3203043780 cites W2102214617 @default.
• W3203043780 cites W2116394159 @default.
• W3203043780 cites W2119622666 @default.
• W3203043780 cites W2119742702 @default.
• W3203043780 cites W2122856225 @default.
• W3203043780 cites W2132759499 @default.
• W3203043780 cites W2137681879 @default.
• W3203043780 cites W2138356919 @default.
• W3203043780 cites W2141759440 @default.
• W3203043780 cites W2142096011 @default.
• W3203043780 cites W2146645019 @default.
• W3203043780 cites W2149217788 @default.

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