Search
Now showing items 1-7 of 7
Assessment of environmental variables and anthropogenic impacts on shallow marine bivalves
(University of Missouri--Columbia, 2016)
of a location. Indeed, these records are influenced by individual growth patterns as organic content of the shell is higher during growth checks. Shells analyzed from lagoons proximal to agriculture and urban settings typically have elevated levels...
Atrazine transport through a glacial till aquifer in north-central Missouri
(University of Missouri--Columbia, 2009)
Although the claypan of North Central Missouri is traditionally believed to protect the groundwater from contamination, low concentrations of the herbicide atrazine have been detected in a shallow glacial till aquifer. The ...
Midwestern climate records from tree ring [delta]¹³C and [delta]¹⁸O values
(University of Missouri--Columbia, 2009)
A 504-year tree ring carbon isotopic time series was generated using samples from living and subfossil white oak trees from northern Missouri. Over the interval from 1931-2002 [delta]¹³C is significantly correlated with ...
Entrainment and transport of coarse stream bed material in a fluviokarst watershed, south-central Missouri : a tracer particle study
(University of Missouri--Columbia, 2010)
The midcontinent of the U.S. is karstified and contains well developed subsurface drainage systems covered by beds of coarse-grained, poorly sorted sediments, resembling those in upland surface streams. Within Tumbling ...
Organic matter remineralization in the sediment of two acid mine drainage lakes
(University of Missouri--Columbia, 2013)
Acid mine drainage is a significant environmental problem throughout the world. At Rocky Forks Conservation Area near Columbia, MO numerous lakes have formed from old coal mining pits. Most of these lakes have a pH near ...
Biomineralizers from the proterozoic to today : assessing taxonomy and paleoecology through the lens of taphonomy
(University of Missouri--Columbia, 2018)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] The onset of metazoan predation is presumed to have triggered an evolutionary arms race of prey defenses, including the advent of biomineralization. ...
Rheological and morphological evolution of basaltic lava flows
(University of Missouri--Columbia, 2018)
Over 500 million people live in proximity of an active volcano globally. Although lava flows rarely endanger human life, they often destroy critical infrastructure. Advancing our understanding of lava flow dynamics is ...