Now showing items 1-6 of 6
Broadening theories of soils genesis: Insights from Tanzania and simple models
Three basic assumptions of soil formation are challenged herein: the degree of chemical weathering decreases with depth; increased physical weathering due to high topographical gradients causes an increase in chemical ...
The Antarctic Peninsula ice sheet since the Last Glacial Maximum
Antarctic is the coldest, driest, and most poorly understood climate system on the planet. Data within these pages contributes to the understanding of the Antarctic Peninsula region, a global warming "hot spot" roughly the ...
The Effects of Land Use and Human Activities on Carbon Cycling in Texas Rivers
I investigated how land use and human activities affect the sources and cycling of carbon (C) in subtropical rivers. Annually rivers receive a large amount of terrestrial C, process a portion of this C and return it to the ...
Near-surface seismic reflection investigations at a groundwater contamination site
A 3-D seismic reflection survey was conducted at a groundwater contamination site to adequately image the near surface (<20m) at a level of detail to enhance ongoing remediation activities at the site. The site, Operable ...
Reconstruction of eastern Pacific climate variability using multiple geochemical tracers in Cocos Island corals
Multiple isotopic and geochemical tracers were employed to unravel the complex history of recent environmental variability at Cocos Island. Downcore variations in delta18O, U/Ca, Sr/Ca, and Ba/Ca within coral skeletal ...
Atmospheric carbonyl compounds in rural and urban Texas: Formation, methodology, and statistical modeling
Atmospheric carbonyl compounds, specifically aldehydes and ketones, were measured in both rural and urban regions in Texas. The biogenic or rural study examined the extent of conversion from primary biogenic hydrocarbons ...