Reevaluating carbon fluxes in subduction zones, what goes down, mostly comes up

PB Kelemen, CE Manning - Proceedings of the National Academy of …, 2015 - pnas.org
Carbon fluxes in subduction zones can be better constrained by including new estimates of
carbon concentration in subducting mantle peridotites, consideration of carbonate solubility …

Heat as a ground water tracer

MP Anderson - Groundwater, 2005 - Wiley Online Library
Heat carried by ground water serves as a tracer to identify surface water infiltration, flow
through fractures, and flow patterns in ground water basins. Temperature measurements …

Measuring methods for groundwater–surface water interactions: a review

E Kalbus, F Reinstorf, M Schirmer - Hydrology and Earth …, 2006 - hess.copernicus.org
Interactions between groundwater and surface water play a fundamental role in the
functioning of riparian ecosystems. In the context of sustainable river basin management it is …

[PDF][PDF] Geothermal heat as a tracer of large-scale groundwater flow and as a means to determine permeability fields

MO Saar - Hydrogeology Journal, 2011 - Citeseer
A review of coupled groundwater and heat transfer theory is followed by an introduction to
geothermal measurement techniques. Thereafter, temperaturedepth profiles (geotherms) …

Depth dependence of permeability in the Oregon Cascades inferred from hydrogeologic, thermal, seismic, and magmatic modeling constraints

MO Saar, M Manga - Journal of Geophysical Research: Solid …, 2004 - Wiley Online Library
We investigate the decrease in permeability, k, with depth, z, in the Oregon Cascades
employing four different methods. Each method provides insight into the average …

Distinguishing Sources of Ground Water Recharge by Using δ2H and δ18O

KW Blasch, JR Bryson - Groundwater, 2007 - Wiley Online Library
Stable isotope values of hydrogen and oxygen from precipitation and ground water samples
were compared by using a volumetrically based mixing equation and stable isotope gradient …

Controls of summer stream temperature in the Pacific Northwest

TD Mayer - Journal of Hydrology, 2012 - Elsevier
This is a regional study of the landscape, stream, and channel factors that control summer
stream temperatures in the Pacific Northwest. The study focusses on two characteristics of …

Variation of δ18O and δD in precipitation and stream waters across the Kashmir Himalaya (India) to distinguish and estimate the seasonal sources of stream flow

G Jeelani, US Kumar, B Kumar - Journal of Hydrology, 2013 - Elsevier
The spatial and temporal distribution of δ18O and δD measurements of precipitation and
stream waters were used to distinguish various sources and components of stream flow and …

AGU Centennial Grand Challenge: Volcanoes and Deep Carbon Global CO2 Emissions From Subaerial Volcanism—Recent Progress and Future Challenges

TP Fischer, A Aiuppa - Geochemistry, Geophysics, Geosystems, 2020 - Wiley Online Library
Quantifying the global volcanic CO2 output from subaerial volcanism is key for a better
understanding of rates and mechanisms of carbon cycling in and out of our planet and their …

Using springs to study groundwater flow and active geologic processes

M Manga - Annual Review of Earth and Planetary Sciences, 2001 - annualreviews.org
▪ Abstract Spring water provides a unique opportunity to study a range of subsurface
processes in regions with few boreholes or wells. However, because springs integrate the …