A regional suite of mafic and ultramafic rocks in the Matthews Ridge (MR) region of NW Guyana, Guiana Shield, South America, is the focus of geochronology and geochemistry studies to characterize the number of distinct magmatic suites, and for each, their ages, mantle sources and differentiation histories. Four groups have been distinguished using their petrographic types, termed MR-1 (meta-gabbro and dolerites), MR-2 (meta-ultramafic-cumulates) , MR-3 (meta-basalts) and unmetamorphosed… Show more A regional suite of mafic and ultramafic rocks in the Matthews Ridge (MR) region of NW Guyana, Guiana Shield, South America, is the focus of geochronology and geochemistry studies to characterize the number of distinct magmatic suites, and for each, their ages, mantle sources and differentiation histories. Four groups have been distinguished using their petrographic types, termed MR-1 (meta-gabbro and dolerites), MR-2 (meta-ultramafic-cumulates) , MR-3 (meta-basalts) and unmetamorphosed dolerites, part of the Avanavero Large Igneous Province-LIP. Show less

The Earth System; Optical mineralogy; Fieldwork I

Petrology and geochemistry of alkali basalts from Serra de São Pedro, Pernambuco, Brazil

Characterization of the mineralogy of polished thin sections and mounts of meteorites and impact rocks from terrestrial craters, using:  Optical microscopy High resolution imaging using scanning electron microscopy Quantitative mineralogy using automated mineral liberation analyzer In situ

NEG/LABISE – Nucleus for Geochemical Studies/ Stable Isotope Laboratory, Recife, Brazil.  Sample preparation for geochemical studies Sample preparation for X-ray fluorescence analysis Honours Thesis research project

Geological Survey of Brazil – CPRM, Recife, Brazil. Internship  Sample preparation Aflora database – Outcrop database Geological mapping Geochemical samples database