Silicate Weathering

Silicates, Silicate Weathering, and Microbial Ecology

Mineralogy, microbial ecology, and mineral weathering in the subsurface are an intimately linked biogeochemical system. Although bacteria have been implicated indirectly in the accelerated weathering of minerals, it is not clear if this interaction is simply the coincidental result of microbial metabolism, or if it represents a speciŽ c strategy offering the colonizing bacteria a competitive ec...

Silicate weathering in anoxic marine sediments

K. WALLMANN*, G. ALOISI, M. HAECKEL, P. TISHCHENKO, G. PAVLOVA, J. GREINERT, S. KUTTEROLF AND A. EISENHAUER 1 IFM-GEOMAR Leibniz Institute of Marine Sciences, Wischhofstrasse 1-3, 24148 Kiel, Germany 2 Laboratoire de Paléoenvironnements et Paléobiosphère, Université Claude Bernard Lyon I, 2, rue Dubois, F69622 Villeurbanne cedex, France 3 Pacific Oceanological Institute (POI), 43, Baltiyskaya S...

Spatial Correlations between Silicate and Metal Weathering in Antarctic

Geoengineering potential of artificially enhanced silicate weathering of olivine.

Geoengineering is a proposed action to manipulate Earth's climate in order to counteract global warming from anthropogenic greenhouse gas emissions. We investigate the potential of a specific geoengineering technique, carbon sequestration by artificially enhanced silicate weathering via the dissolution of olivine. This approach would not only operate against rising temperatures but would also o...

Negative CO2 emissions via enhanced silicate weathering in coastal environments

Negative emission technologies (NETs) target the removal of carbon dioxide (CO2) from the atmosphere, and are being actively investigated as a strategy to limit global warming to within the 1.5-2°C targets of the 2015 UN climate agreement. Enhanced silicate weathering (ESW) proposes to exploit the natural process of mineral weathering for the removal of CO2 from the atmosphere. Here, we discuss...