A5092362308- Geological and Geochemical Analysis
- CO2 Sequestration and Geologic Interactions
- Geological and Geophysical Studies
- Methane Hydrates and Related Phenomena
- Clay minerals and soil interactions
Middlebury College
2023-2024
Weathering of basaltic powders was studied experimentally at 35 °C in dilute solutions oxalic acid and carbonic to assess the effect grain size reactive surface area for materials under consideration carbon dioxide reduction (CDR) by enhanced rock weathering (ERW). The basalts chosen this study (with their mineralogical compositions) are Blue Ridge (BR) meta-basalt (chlorite > epidote plagioclase actinolite) Pioneer Valley (PV) basalt (plagioclase augite quartz chlorite). Powders BR PV were...
Tropical environments show great potential to sequester CO2 by enhanced rock weathering (ERW) of powdered mafic rocks applied agricultural fields. This study seeks assess carbon dioxide reduction (CDR) in the humid tropics (1) experimental basaltic-to-andesitic powders conditions simulating tropical soils, and (2) from rates determined a Holocene soil chronosequence where parent material is andesitic sediments. Experimentally basalts Costa Rica (Arenal Barva) indicate sequestration 2.4 4.5...