Elements Covers

Posts by Jonathan D. Blundy

v14n4 From the Editors

This issue of Elements is the first of its kind. It is the first of the field-based thematic issues that features a specific geographic region of particular geological interest. It is not an easy task to encapsulate a massive geographic region in 6 mini-review articles for a readership that represents a broad spectrum of scientific interests. Obviously, one can’t cover everything in a single issue of Elements, so what topics should be featured? This is a new avenue to explore and we welcome your feedback. We also share the Elements 2017 Impact Factor in this report.

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Ethically Sourced Metals

The Central Andes is a land of llamas, salt flats and majestic volcanic peaks. It is one of most remote places on Earth and arguably the driest. In a not unconnected way, the Central Andes is also home to the world’s largest copper mines. The unique combination of magmas, tectonics and climate, described in this issue of Elements, has conspired to create hydrothermal ore deposits that provide a third of the world’s copper and a quarter of its molybdenum.

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v14n3 From the Editors

Geologists love their beer and wine. There is abundant proof of this statement if you have ever attended an international geoscience conference. Typically, included with an attendee’s registration packet received upon arrival at the conference are beer/wine tickets. Scientists may disperse through the day to attend talks, workshops, and poster sessions, but, late in the afternoons, kegs of beer and bottles of wine are rolled out and the scientists will quickly converge on the beer/wine stations. As the topic of this thematic issue of Elements is on wine, the question begs to be asked, where does all that wine originate?

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v14n2 From the Editors

We are excited to announce that John M. Eiler, Robert P. Sharp Professor of Geology and Geochemistry at the California Institute of Technology (USA) has agreed to join the Elements editorial team as our next geochemistry editor. His official term begins January 2019. He will replace Friedhelm von Blanckenburg whose term of office ends December 2018. We will introduce John more formally at a later date.

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Crustal Magmatic Systems from the Perspective of Heat Transfer

Crustal magmatic systems are giant heat engines, fed from below by pulses of hot magma, and depleted by loss of heat to their surroundings via conduction or convection. Heat loss drives crystallization and degassing, which change the physical state of the system from relatively low-viscosity, eruptible melt, to high-viscosity, immobile, partially molten rock. We explore the temporal evolution of incrementally grown magmatic systems using numerical models of heat transfer. We show that their physical characteristics depend on magma emplacement rates and that the majority of a magma system’s lifetime is spent in a highly crystalline state. We speculate about what we can, and cannot, learn about magmatic systems from their volcanic output.

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