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Citation: Caricchi L, Simpson G and Schaltegger U (2016) Estimates of Volume and Magma Input in Crustal Magmatic Systems from Zircon Geochronology: The Effect of Modeling Assumptions and System Variables. Front. Earth Sci. 4:48. doi: 10.3389/feart.2016.00048 Estimates of Volume and Magma Input in Crustal Magmatic Systems from Zircon Geochronology: The Effect of Modeling Assumptions and System V...

Recent analytical improvements have provided a new wave of geochronology data, but developments in understanding of the analytical process and the application of statistically robust interpretative/visualisation tools have lagged. Some tools are emerging, but there is a strong need for further development. A fundamental concern is simply how to manage the volumes of data now being acquired. Wor...

The Cyber Infrastructure Research and Development Lab for the Earth Sciences (CIRDLES) collaboratively integrates domain-specific software engineering with the efforts of two NSF-supported initiatives in geochronology. Geochronology is the science of determining the age of geological formations. The EARTHTIME initiative pursues consensus-based approaches to geochemical data reduction, and the E...

Single grain zircon U-Pb geochronology has demonstrated great potentials in extracting tectonic and atmospheric circulation signal carried by aeolian, fluvial, and fluviolacustrine sediments. A routine in this sort of studies is analyzing 100-150 grains and then compares zircon U-Pb age spectra between the measured sample and the potential sources. Here we compared the zircon U-Pb age results o...

Stratigraphy is the science that studies the strata, or beds, of (mainly) sedimentary rocks in order to extract from them the history of the earth’s surface. By grouping the bed successions in stratigraphic units and by studying their geometrical relationships with some simple rules, it creates the fundamental temporal relative framework necessary to understand the origin of the rock units them...

Rayleigh distillation models are developed to describe theoretical growth zoning of Lu, Hf, Rb, Sr, Sm, and Nd in typical garnet crystals from metapelites and metabasites. Effects of diffusion-limited transport within the matrix and intracrystalline diffusion are also considered qualitatively. Theoretical zoning profiles show strong depletions of Lu in garnet rims compared to cores, but virtual...

a Department of Environmental Science, Policy and Management, University of California, 130 Mulford Hall, Berkeley 94720, USA b School of Earth and Space Exploration, Arizona State University, Tempe, AZ, USA c Universidad Católica del Norte, Antofagasta, Chile d Berkeley Geochronology Center, 2455 Ridge Rd., Berkeley 94709, USA e Department of Earth and Planetary Science, University of Californ...

DEEP TimE is what separates geology from all other sciences. This report presents recommendations for improving how we measure time (geochronometry) and use it to understand a broad range of Earth processes (geochronology). This report is drawn from the presentations and discussions held at a workshop prior to the V.