Featured Articles
Eason Thumbnail Eason, D.E. and Dunn, R.A. (2015) Petrogenesis and structure of oceanic crust in the Lau back-arc basin

Back-arc basins such as the Lau at the Australian-Pacific plate boundary are of particular interest as productive centers of crustal formation. They host a diversity of crustal structure, compositions, and processes not found at mid-ocean ridges. Using geochemical data culled from PetDB and other sources from the Eastern Lau Spreading Center and the Valu Fa Ridge, Eason… Read More



Li Thumbnail Li et al. (2015), Trace element indiscrimination diagrams

During the past 40 years trace element indiscrimination diagrams have been widely used as a reliable method to determine the tectonic settings of mafic-ultramafic rocks. Li et al. argue that these diagrams, while widely utilized and cited, have often been based on small data sets, containing limited numbers of trace elements and using outdated analytical techniques. Although they are still… Read More



Bataille Thumbail Bataille et al. (2012), Mapping multiple source effects on the strontium isotopic signatures of ecosystems from the circum-Caribbean region

Strontium (Sr) isotope ratios (87Sr/86Sr) can provide insights into a range of environmental processes. Previous authors have mapped 87Sr/86Sr in both bedrock and water across large spatial scales, but these efforts have assumed that the weathering of primary minerals in bedrock is the only source of environmentally available Sr. Bataille et al.





Yuri_Taran IEDA Data Rescue Mini-Award: Legacy Russian Volcanic and Hydrothermal Gas Data

Geochemical analyses of volcanic and hydrothermal gas samples from 20 publications have been translated and compiled by Tobias Fischer (DCO DECADE; University of New Mexico, USA), with expert Russian gas geochemist Yuri Taran (Universidad Autonoma de Mexico; pictured at right), Elena Kalacheva (IVS, Kamchatka) and Nicole Thomas (UNM). These data, which were previously… Read More



Carmichael Thumbnail Carmichael (2014), Chemical Analysis of Silicate Rocks: A Manual

The late Dr. Ian S. E. Carmichael (pictured) was known as "a giant in the field of igneous processes and volcanoes." His groundbreaking work included the development and use of a suite of analytical techniques for the determination of silicate rock composition. He compiled these… Read More