RSS 1.0Department of Geological Sciences (MU)
The Department of Geological Sciences has a dynamic faculty who, along with their students, are making significant contributions to numerous areas of basic and applied research. This research is supported by excellent, state-of- the-art analytical facilities in the department and on campus. The areas of research covered by our faculty are broad and diverse, however, our research expertise is strongest in the general areas of geochemistry and tectonics. These strengths allow us to focus on problems identified by the National Research Council to be socially relevant and to be fundamental to an understanding of earth processes.
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A geochemical, taxonomic, and phylogenetic investigation of paleozoic arthropods : case studies on the cambrian spice event and the silurian waukesha lagerstatte
(University of Missouri--Columbia, 2020)This thesis details two stand-alone projects: Chapters 1 and 2 comprise a quantitative investigation of controls on the [delta]13C record of the Steptoean Positive Carbon Isotope Excursion (SPICE); Chapter 3 describes a ... -
Spatiotemporal patterns of earthquakes and their implications for earthquake hazards
(University of Missouri--Columbia, 2022)[EMBARGOED UNTIL 5/31/2023] This work focuses on characterizing spatiotemporal patterns of earthquakes, their possible causes, and their implications for seismic hazard assessment. I studied both local and global earthquakes ... -
Another one bites the host : driving forces of increased complex life-cycle parasite traces during the Holocene as affected by sea-level rise in Northern Adriatic, Po Plain Basin
(University of Missouri--Columbia, 2022)[EMBARGOED UNTIL 8/1/2023] Holocene deposits of the Adriatic coastal plain are rich with clams parasitized by trematodes (complex life cycle parasites), as indicated by diagnostic pits on the interior of their valves. ... -
Structural style of the San Francisco Mountains, Sevier fold-thrust belt, Utah
(University of Missouri--Columbia, 2022)[EMBARGOED UNTIL 8/1/2023] The Sevier fold-thrust belt contains thrust sheets that are overprinted by extensional faults, distorting correlations of geologic structures in the region. The Frisco thrust is exposed within ... -
Geochronologic and thermochronologic constraints on the Mesozoic to Cenozoic deformation history of southeastern California
(University of Missouri--Columbia, 2022)[EMBARGOED UNTIL 8/1/2023] Southeastern California hosts a complex zone of deformation defined by structures related to the San Andreas fault, such as the sinistral Garlock fault and the largely dextral eastern California ... -
Constraining the slip rate of the Owl Lake Fault by using LiDAR data and fault scarp degradation models
(University of Missouri--Columbia, 2022)[EMBARGOED UNTIL 8/1/2023] The Owl Lake Fault is an active, 19 to 25-km-long, left-lateral strike-slip fault that divaricates NE from the Garlock Fault toward Death Valley in eastern California and transfers regional strain ... -
Vignettes on preservation, preparation, and paleoecology
(University of Missouri--Columbia, 2022)[EMBARGOED UNTIL 8/1/2023] Preservation exercises strong control over what can be observed and interpreted from the fossil record. The research projects presented here seek to examine the ways in which certain preservational ... -
Biotic interactions in the fossil record: an investigation on the patterns of predation and parasitism of Plio-Pleistocene bivalves from the Nashua Formation of Florida
(University of Missouri--Columbia, 2022)[EMBARGOED UNTIL 8/1/2023] The present study investigated for patterns of predation and parasitism among a collection of Plio-Pleistocene bivalves from the Nashua Formation of Florida. The processed sample yielded 2010 ... -
Neotectonic assessment of the southern Wassuk Range, western Nevada
(University of Missouri--Columbia, 2021)Active deformation across western North America is distributed across a broad zone spanning from the San Andreas fault system to the Basin and Range Province. The Wassuk Range fault zone (WRFZ), located within the Walker ... -
Coprolites of the late eocene using virtual paleontology from the Pipestone Springs Main Pocket, Montana
(University of Missouri--Columbia, 2022)[EMBARGOED UNTIL 6/1/2023]The study of coprolites and their internal constituents has previously employed a predominantly destructive means of extraction, resulting in the partial or complete loss of the specimen. Recently, ... -
Active deformation of the South Granite Mountain Fault System : reactivated compressional faults vs. extensional overprinting
(University of Missouri--Columbia, 2022)[EMBARGOED UNTIL 6/1/2023] Quaternary faulting in and around Wyoming's Wind River Basin may pose a moderate earthquake risk for dams and other infrastructure within the region. The South Granite Mountains Fault Zone, located ... -
Examining dissolution procedure effects on trace and rare earth element concentrations and U/Pb ages in conodonts
(University of Missouri--Columbia, 2022)[EMBARGOED UNTIL 6/1/2023] The ability to quantitatively date carbonate rocks and shales using geo- and thermochronometry has eluded geologists due to the scarcity of requisite minerals. A small number of investigations ... -
Diagnostic competencies of those administering and interpreting cognitive (IQ) assessments for special education placement within Missouri: perceptions of special education directors and process coordinators
(University of Missouri--Columbia, 2022)This study explored the policies and laws established to govern the process school districts within Missouri use to administer and interpret cognitive assessments, as well as the perceptions of special education administrators ... -
When they see us: racial criminalization, racial stigma, and identity in a Midwest college town
(University of Missouri--Columbia, 2022)Racial stigma and racial criminalization have been centralizing pillars of the construction of Blackness in the United States. Taking such systemic injustice and racism as a given, then question then becomes how these ... -
Preservation and bias in the Cambrian fossil record
(University of Missouri--Columbia, 2022)Paleontology views deep time ecosystems through a taphonomic lens, biased and restricted by the controls enacted on each fossil deposit by various environmental factors, and including chemical and biological variables. ... -
Emplacement styles of obsidian lavas: an integrated field and laboratory study
(University of Missouri--Columbia, 2021)Previously accepted models of emplacement dynamics of obsidian lavas have recently been called into question by observations made during the effusive eruptions of Chaiten in 2008-2009 and Cordon Caulle in 2011-2012 in ... -
Propagation of regional seismic phases (Sn and Lg) in the Middle East and East Asia
(University of Missouri--Columbia, 2021)I have studied the propagation of the regional seismic waves (Sn and Lg) in the Middle East (ME) and East Asia. The methods used in this study are : (1) the reverse two-station method (RTM) to determine the attenuation and ... -
Taxonomy, taphonomy, and ecology of Silurian (late Telychian) conulariids from the Waukesha Lagerstatte, Wisconsin
(University of Missouri--Columbia, 2021)The Silurian (late Telychian Stage) Brandon Bridge Formation, Wisconsin, USA, hosts a diverse biota including arthropods, annelids, graptolites, brachiopods, corals, sponges, and algae, some of which exhibit exceptional ... -
Atypical planetary lavas: rheological evolution of cooling and crystallizing flows from lunar impact melts and cryovolcanic processes
(University of Missouri--Columbia, 2021)Volcanism is common to many of the solid planets and moons throughout the solar system. On Earth, volcanic research is mainly targeted at hazard assessment and prediction but volcanism on other worlds helps us understand ... -
Investigations of Mississippi valley-type mineralizing fluids via analytical geochemistry, numerical modeling, and experimental geochemistry
(University of Missouri--Columbia, 2021)Mississippi Valley-type (MVT) deposits represent enrichments of base metals and other elements up to 1000's of times greater than their average concentrations in the Earth's crust. These enrichments most commonly consist ...