Journal article

A bigger tent for CAMP

Steven W Denyszyn, Marco L Fiorentini, Roland Maas, Gregory Dering

GEOLOGY | GEOLOGICAL SOC AMER, INC | Published : 2018

Abstract

We present new high-precision geochemical and isotopic data showing that magmas related to the Central Atlantic Magmatic Province (CAMP) were emplaced at the base of the continental crust in the Ivrea Zone of northwest Italy. These results significantly extend the known footprint of one of the largest examples of a large igneous province (LIP) on the planet. The La Balma-Monte Capio (LBMC) intrusion ranges from dunitic at the base to plagioclasebearing pyroxenitic at the top. Zircons were extracted from two samples at different levels, and dated using the chemical abrasion-isotope dilution-thermal ionization mass spectrometry (CA-ID-TIMS) U-Pb method. The two weighted-mean 206Pb/238U ages at..

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University of Melbourne Researchers

Grants

Awarded by Australian Research Council (ARC)


Awarded by ARC Centre of Excellence for Core to Crust Fluid Systems


Funding Acknowledgements

We acknowledge the financial support of Australian Research Council (ARC) grants CE110001017, FT110100241, and LP120100668. Alison Davis is thanked for field and laboratory assistance. R. Ernst and F. Corfu are thanked for useful reviews. This is contribution 1188 from the ARC Centre of Excellence for Core to Crust Fluid Systems.