Dissolved Fluxes of the Taiwan Orogen: active mountain belts and Earth's thermostat
Chemical weathering of Earth’s surface and silicate weathering in particular, through consumption of atmospheric CO2, regulates the global carbon cycle and thus mediates climate over geological timescales. Investigations that quantify global weathering rates focus primarily on fluvial fluxes, yet riverine input to the oceans is out of balance with the partnered loss of elements via subsequent reactions with, for example, the oceanic crust, giving rise to discrepencies in studies that rely on a quantification of ocean geochemical budgets. My research is focused on the role that groundwater circulation might play in drawing down CO2 by silicate weathering, and in quantifying the chemical weathering fluxes to the ocean attributable to subsurface processes.
I collect groundwater samples primarily from two distinct reservoirs in the tectonically and climatically hyperactive Taiwan: alluvial-fill coastal plains and fractured-bedrock mountain aquifers. Access to municipal wells enables the sampling of groundwaters at low elevations, but the exploitation of disused and used transport network tunnels is required in intercepting and tapping high-altitude, deeply sequestered H2O.
I am jointly funded by the O'Reilly Foundation and a Benefactors' Scholarship from St. John's College, Cambridge. I have three, equally-invested supervisors here at Cambridge: Niels Hovius, Albert Galy and Mike Bickle, and rely on the personal and professional help of many friends here at the department to conduct my laboratory work. I have been lucky enough to travel to Taiwan several times to collect samples, adventures which could not have been undertaken without the generous and kind assistance of too-many-to-mention-individually collaborators in Taiwan, and my honorary geologist, English literature professor husband, Deep.
American Geophysical Union Fall Meeting, San Francisco, 3-7 December 2012: Martin CEA, Galy A, Calmels D, Hovius N, Bickle M, Chen M-C. 'Landslide-induced weathering: insight from a deep bedrock tunnel in Taiwan and implications for the carbon cycle'.
York College, CUNY, November 2012 (Invited): ‘Landslides: a new link between climate and bacteria’.
Goldschmidt Conference, Montreal, June 2012: Martin C, Galy A, Hovius N, Bickle M, Lin I-T, Horng M-J, Calmels D, Chapman H & Chen H. 'Chemical weathering fluxes through a coastal aquifer, the Pingtung Plain, southwest Taiwan', Mineralogical Magazine, 76(6) 2072
Friends of the Sedgwick Museum, Cambridge, November 2011 (Invited): ‘Groundwater chemistry in Taiwan’.
Goldschmidt Conference, Prague, August 2011: Martin C, Galy A, Hovius N, Bickle M, Lin I-T, Horng M-J, Calmels D, Chapman H & Chen H. 'Contribution of groundwater to chemical weathering fluxes in the Pingtung Plain, Taiwan', Mineralogical Magazine, 75(3) 1411
Dept. Earth & Physical Sciences, York College, CUNY, March 2011 (Invited): ‘Dissolved fluxes from the Taiwan Orogen’.
Dept. Earth & Ocean Sciences, NUIG, November 2009 (Invited): ‘Possibilities for undergraduates: from the classroom to Taiwan’.
Martin, C.E.A., Galy, A., Hovius, N., Bickle, M., Lin, I-T., Horng, M-J., Calmels, D., Chapman, H. and Chen, H. 2013. Chemical weathering fluxes through a coastal aquifer, the Pingtung Plain, southwest Taiwan. Applied Geochemistry 33, 222-236.
Last updated on 27-May-13 12:43