Outputs (247)

New 40Ar/39Ar dating of the Grande Ronde lavas, Columbia River Basalts, USA: Implications for duration of flood basalt eruption episodes (2010)
Journal Article
Barry, T. L., Self, S., Kelley, S. P., Reidel, S., Hooper, P., & Widdowson, M. (2010). New 40Ar/39Ar dating of the Grande Ronde lavas, Columbia River Basalts, USA: Implications for duration of flood basalt eruption episodes. Lithos, 118(3-4), 213-222. https://doi.org/10.1016/j.lithos.2010.03.014

Grande Ronde Basalt (GRB) lavas represent the most voluminous eruptive pulse of the Columbia River-Snake River-Yellowstone hotspot volcanism. With an estimated eruptive volume of 150,000km3, GRB lavas form at least 66% of the total volume of the Colu... Read More about New 40Ar/39Ar dating of the Grande Ronde lavas, Columbia River Basalts, USA: Implications for duration of flood basalt eruption episodes.

An 80 million year oceanic redox history from Permian to Jurassic pelagic sediments of the Mino-Tamba terrane, SW Japan, and the origin of four mass extinctions (2010)
Journal Article
Wignall, P. B., Bond, D. P., Kuwahara, K., Kakuwa, Y., Newton, R. J., & Poulton, S. W. (2010). An 80 million year oceanic redox history from Permian to Jurassic pelagic sediments of the Mino-Tamba terrane, SW Japan, and the origin of four mass extinctions. Global and planetary change, 71(1-2), 109-123. https://doi.org/10.1016/j.gloplacha.2010.01.022

Fabric and pyrite framboid size analysis of Permian to Jurassic samples from the Mino-Tamba terrane of Japan provide an 80myr redox history from the Panthalassa Ocean. Fully oxygenated conditions dominated but were punctuated by three phases of anoxi... Read More about An 80 million year oceanic redox history from Permian to Jurassic pelagic sediments of the Mino-Tamba terrane, SW Japan, and the origin of four mass extinctions.

Lithofacies architecture of a proximal ignimbrite: Diego Hernandez Wall, Las Canadas Caldera, Tenerife (2010)
Presentation / Conference Contribution
Smith, N., & Kokelaar, P. (2010, January). Lithofacies architecture of a proximal ignimbrite: Diego Hernandez Wall, Las Canadas Caldera, Tenerife. Poster presented at Volcanic and Magmatic Studies Group, Glasgow, Jan 2010

Volcanism, mass extinction, and carbon isotope fluctuations in the Middle Permian of China (2009)
Journal Article
Wignall, P. B., Sun, Y., Bond, D. P. G., Izon, G., Newton, R. J., Védrine, S., Widdowson, M., Ali, J. R., Lai, X., Jiang, H., Cope, H., & Bottrell, S. H. (2009). Volcanism, mass extinction, and carbon isotope fluctuations in the Middle Permian of China. Science, 324(5931), 1179-1182. https://doi.org/10.1126/science.1171956

The 260-million-year-old Emeishan volcanic province of southwest China overlies and is interbedded with Middle Permian carbonates that contain a record of the Guadalupian mass extinction. Sections in the region thus provide an opportunity to directly... Read More about Volcanism, mass extinction, and carbon isotope fluctuations in the Middle Permian of China.

A humid corridor across the Sahara for the migration of early modern humans out of Africa 120,000 years ago (2008)
Journal Article
Osborne, A. H., Vance, D., Rohling, E. J., Barton, N., Rogerson, M., & Fello, N. (2008). A humid corridor across the Sahara for the migration of early modern humans out of Africa 120,000 years ago. Proceedings of the National Academy of Sciences of the United States of America, 105(43), 16444-16447. https://doi.org/10.1073/pnas.0804472105

It is widely accepted that modern humans originated in sub-Saharan Africa ≈150-200 thousand years ago (ka), but their route of dispersal across the currently hyperarid Sahara remains controversial. Given that the first modern humans north of the Saha... Read More about A humid corridor across the Sahara for the migration of early modern humans out of Africa 120,000 years ago.

A dynamic explanation for the origin of the western Mediterranean organic-rich layers (2008)
Journal Article
Rogerson, M., Cacho, I., Jimenez-Espejo, F., Reguera, M. I., Sierro, F. J., Martinez-Ruiz, F., Frigola, J., & Canals, M. (2008). A dynamic explanation for the origin of the western Mediterranean organic-rich layers. Geochemistry, Geophysics, Geosystems, 9(7), n/a-n/a. https://doi.org/10.1029/2007gc001936

The eastern Mediterranean sapropels are among the most intensively investigated phenomena in the paleoceanographic record, but relatively little has been written regarding the origin of the equivalent of the sapropels in the western Mediterranean, th... Read More about A dynamic explanation for the origin of the western Mediterranean organic-rich layers.

Evaluation of the Titan2D two-phase flow model using an actual event: case study of the 2005 Vazcún Valley Lahar (2008)
Journal Article
Williams, R., Stinton, A. J., & Sheridan, M. F. (2008). Evaluation of the Titan2D two-phase flow model using an actual event: case study of the 2005 Vazcún Valley Lahar. Journal of Volcanology and Geothermal Research, 177(4), 760-766. https://doi.org/10.1016/j.jvolgeores.2008.01.045

Titan2D is a depth-averaged, thin-layer computational fluid dynamics (CFD) code, suitable for simulating a variety of geophysical mass flows. Titan2D output data include flow thickness and flow momentum at each time step for all cells traversed by th... Read More about Evaluation of the Titan2D two-phase flow model using an actual event: case study of the 2005 Vazcún Valley Lahar.