Geoscience

Events

Progressive aridification in East Africa over the last half million years and implications for human evolution	R. Bernhart Owen, Veronica M. Muiruri, Tim K. Lowenstein, Robin W. Renaut, Nathan Rabideaux, Shangde Luo, Alan L. Deino, Mark J. Sier, Guillaume Dupont-Nivet, Emma P. McNulty, Kennie Leet, Andrew Cohen, Christopher Campisano, Daniel Deocampo, Chuan-Chou Shen, Anne Billingsley, Anthony Mbuthia	F1.large (1).jpg	Fig. 1. Core location and lithology. (A) Location of MAG14-2A and MAG14-1A–C and geology. (B) Sediment log for MAG14-2A. c, clay; e, evaporites; m, mud; s, sand; si, silt.
Current evidence allows multiple models for the peopling of the Americas	Ben A. Potter1, James F. Baichtal, Alwynne B. Beaudoin, Lars Fehren-Schmitz, C. Vance Haynes, Vance T. Holliday, Charles E. Holmes, John W. Ives, Robert L. Kelly, Bastien Llamas, Ripan S. Malhi, D. Shane Miller, David Reich, Joshua D. Reuther, Stephan Schiffels, Todd A. Surovell	F1.large_.jpg	Fig. 1 - Northwest North America with archeological sites older than 10,000 calibrated years before the present (Supplementary Materials) and proposed colonization routes: IFC and NPC.
Arc Magmatic Tempos: Gathering the Evidence	Paterson, Scott R., and Ducea, Mihai N.	DuceaElements2.png Edit Delete	FIGURE 1 (A) Comparison of exposed bedrock U–Pb zircon ages with displaced detrital zircon U–Pb LA-ICPMS ages from the Sierra Nevada Batholith (California, USA).