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Browsing by Author "Metcalfe, S. E."

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Climate variability over the last two millennia in the North American monsoon region, recorded in laminated lake sediments from Laguna de Juanacatlan, Mexico

Metcalfe, S. E.; Jones, Matthew D; Davies, S. J.; Noren, A.; Mackenzie, A. B. (2010-12)

High-resolution titanium (Ti) data obtained using an ITRAX XRF core scanner from a laminated sediment core from the Laguna de Juanacatlan, western central Mexico yield a unique high-resolution record of runoff (precipitation) ...
Developing diatom-based transfer functions for central Mexican lakes

Davies, Sarah J.; Metcalfe, S. E.; Caballero, M.; Juggins, S. (2002-01)

This paper is the first attempt to produce diatom-based transfer functions for the northern tropical Americas. A dataset of 53 modern diatom samples and associated hydrochemical variables from 31 sites in the volcanic ...
Environmental changes in the Zirahuen Basin, Michoacan, Mexico, during the last 1000 years

Davies, Sarah J.; Metcalfe, S. E.; MacKenzie, A.; Newton, A.; Endfield, Georgina H; Farmer, John G (2004-01)

Lago de Zirahuén (19° 26 N, 101° 44 W) lies within a montane basin in highland Michoacán, Mexico at 2075 m a.s.l. The lake basin has high recreational value and is promoted as a tourist attraction. Four short (
Lake sediments record sensitivity of two hydrologically closed upland lakes in Mexico to human impact

Davies, Sarah J.; Metcalfe, S. E.; Chacon, A.; Bernal-Brooks, F.; Farmer, John G; MacKenzie, Angus B; Newton, Anthony J (2005-08)

We provide evidence of rapid, recent environmental change in two lakes in the highlands of central Mexico. Multiple sediment cores were obtained from Lago de Zirahuén (Michoacán) and Laguna de Juanacatlán (Jalisco). Analysis ...
Long and short-term change in the Patzcuaro Basin, central Mexico

Metcalfe, S. E.; Davies, Sarah J.; Braisby, J.; Leng, Melanie J.; Newton, Anthony J; Terrett, Nicola L; O'Hara, Sarah L (2007-04-30)

Data are presented from four new cores from the Pátzcuaro basin in the volcanic highlands of central Mexico, which provide new insights into climate change and human impact over the last 23,000 cal. yr (19,000 14C yr) BP. ...

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