Title

Geochemical Analysis of Colloidal Particles During Flood Stages in the Maramec Spring System

Presenter Information

Heather Pribil

Department

Geosciences and Geological and Petroleum Engineering

Major

Geology and Geophysics

Research Advisor

Wronkiewicz, David J.

Advisor's Department

Geosciences and Geological and Petroleum Engineering

Funding Source

Opportunities for Undergraduate Research Experiences (OURE)

Abstract

The Maramec Spring system has a milky blue-white color due to colloidal matter in the system. Previous researchers have determined mechanisms for mineral formation and occurrence in the system, also identifying the mineral constituents of its colloidal matter. These minerals include low-Mg calcite (CaCO3) and anglesite (PbSO4). Previous studies focused on the system during low-flow, ignoring the system during flood stages. This project aims to understand how turbulent flow affects the mineralogy and the regional distribution of lead phases of the system. Water samples were collected at several sites along the system and centriguged. Particle morphology and elemental composition will be analyzed using optical light microscopy, X-Ray Diffraction, and Scanning Electron Microscopy-Energy Dispersive Spectroscopy. Preliminary results obtained from SEM-EDS of particles indicate that the composition of this colloidal matter is mainly kaolinite (Al2Si2O5(OH)4). High density phases include barite (BaSO4), apatite (Ca10 (PO4)6(OH,F,Cl)2), and iron-bearing constituents. No lead phases were found.

Biography

Heather Pribil is a junior in Geology & Geophysics at Missouri University of Science and Technology, and a writer and assistant news editor for the Missouri Miner. The round rocks around her hometown of Weaubleau, Missouri served as her introduction to geology, inspiring countless trips to nearby creeks and springs in pursuit of these so called “Weaubleau eggs.”

Research Category

Research Proposals

Presentation Type

Poster Presentation

Document Type

Poster

Location

Upper Atrium/Hallway

Presentation Date

11 Apr 2016, 9:00 am - 11:45 am

Comments

Joint Project with Jia Sun

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Apr 11th, 9:00 AM Apr 11th, 11:45 AM

Geochemical Analysis of Colloidal Particles During Flood Stages in the Maramec Spring System

Upper Atrium/Hallway

The Maramec Spring system has a milky blue-white color due to colloidal matter in the system. Previous researchers have determined mechanisms for mineral formation and occurrence in the system, also identifying the mineral constituents of its colloidal matter. These minerals include low-Mg calcite (CaCO3) and anglesite (PbSO4). Previous studies focused on the system during low-flow, ignoring the system during flood stages. This project aims to understand how turbulent flow affects the mineralogy and the regional distribution of lead phases of the system. Water samples were collected at several sites along the system and centriguged. Particle morphology and elemental composition will be analyzed using optical light microscopy, X-Ray Diffraction, and Scanning Electron Microscopy-Energy Dispersive Spectroscopy. Preliminary results obtained from SEM-EDS of particles indicate that the composition of this colloidal matter is mainly kaolinite (Al2Si2O5(OH)4). High density phases include barite (BaSO4), apatite (Ca10 (PO4)6(OH,F,Cl)2), and iron-bearing constituents. No lead phases were found.