Robert Bolhar
University of the Witwatersrand
81 Papers
301 Citations
Robert Bolhar is an academic researcher from University of the Witwatersrand. The author has contributed to research in topics: Zircon & Trace element. The author has an hindex of 24, co-authored 57 publications. Previous affiliations of Robert Bolhar include University of Johannesburg & University of Mainz.
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Papers
Characterisation of early Archaean chemical sediments by trace element signatures
TL;DR: In this article, the authors presented new rare earth element (REE) plus yttrium (Y) data for two distinct suites of early Archaean metamorphosed rocks from southern West Greenland, whose interrelationships have been much debated in recent literature.
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A trace element study of siderite-jasper banded iron formation in the 3.45 Ga Warrawoona Group, Pilbara Craton - Formation from hydrothermal fluids and shallow seawater
TL;DR: In this article, the authors proposed a volcanic caldera setting as a likely depositional environment where jasper and siderite precipitated as alternating bands in response to episodic changes in ambient water chemistry.
167
Volcanic resurfacing and the early terrestrial crust: Zircon U-Pb and REE constraints from the Isua Greenstone Belt, southern West Greenland
TL;DR: The oldest known bona fide succession of elastic metasediments Occurs in the Isua Greenstone Belt in SW Greenland and consists of a variety of mica schists and rare metaconglomerates as mentioned in this paper.
156
Sources and evolution of arc magmas inferred from coupled O and Hf isotope systematics of plutonic zircons from the Cretaceous Separation Point Suite (New Zealand)
TL;DR: In this paper, the authors used separation point suite (SPS) samples from individual plutons in the Nelson and Fiordland regions of New Zealand, obtained by cathodoluminescence imaging-guided micro-beam methods (SIMS, LA-ICPMS), to record evolving magma compositions in a prominent Mesozoic arc system.
140
An integrated zircon geochronological and geochemical investigation into the Miocene plutonic evolution of the Cyclades, Aegean Sea, Greece: Part 1: Geochronology
TL;DR: In this paper, the authors used 369 individual U-Pb zircon ages from 14 granitoid samples collected on five islands in the Cyclades in the Aegean Sea, Greece, for constraining the crystallisation history of I- and S-type plutons above the retreating Hellenic subduction zone.
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