Our department is housed in the Brehm Laboratory building
on Wright State University main campus. The research laboratories
in the Department are now located on the second floor of the Brehm Laboratory
building which recently underwent a multi-million dollar renovation (completed
in August, 2007). The renovation involves modernization and expansion
of the laboratory facilities. Further, the Department also maintains
Services Building on campus that houses a wide variety of specialized
field equipment, as listed below.
Multi-User Environmental Analytical Facility
This new facility houses and supports chemical instrumentation used by multiple faculty and students in the Department of Earth & Environmental Sciences. It is currently home to the following instruments:
- PerkinElmer flame atomic absorption spectrophotometer and autosampler
- Teledyne Tekmar total carbon and nitrogen analyzer with solid- and aqueous-phase sample introduction and autosampler
Applied Geophysics Laboratory
This facility has a variety of equipment for acquisition of geophysical data
(seismic, gravity, magentic, ground penetrating radar, etc.) in the field,
as well as a sophisticated suite of software for seismic data processing and
analysis in the laboratory, which includes:
- 120-channel truck-mounted seismic reflection recording system
- 36-channel Strataview(TM) portable seismic recording system
- Portable seismic refraction system (12-channel)
- Bison (TM, Bison) Elastic Wave Generator
- Geophysical Workstation for seismic modeling
- Sun SPARCstation for seismic data processing
- ProMAX (TM, Landmark) interactive seismic reflection processing system
- Three gravity meters (LaCoste-Romberg and Worden)
- Magnetic gradiometer system
- A brand-new Ground Penetrating Radar system
- Resistivity meter
- Global Positioning System (differential)
This facility includes a modern laboratory that is focused towards the
analysis of natural waters from lakes, wetlands, groundwater, etc. The equipment
in this lab include:
- Dionex Ion Chromatographs (ICS-2000 Reagent-Free Integrated IC System,
with autosampler) for the analysis of anions and cations
- A HACH Spectrophotometer (Model DR 5000 UV-Vis)
- YSI multiparameter stations (Model 556 MPS), and some portable meters.
- A Light Isotope preparation facility to support our ongoing project on
the carbon isotope fractionation in lake water.
This lab has a n extensive set of equipment for field sampling, drilling rigs,
and tools for logging of geochemical parameters and flow properties in the
borehole or surface waters. There is an extensive library of software for geospatial
data analysis and modeling ground-water flow and contaminant transport. The
Sycamore Farm Experimental Watershed and the Beavercreek Wetlands are used
as field laboratories for research and teaching.
Environmental Quality and Risk Assessment Facility
This facility is focused on aquatic surface water systems. It has a
range of equipment and instrumentation dedicated to water quality analyses,
culturing, and biological exposure and effect testing. This includes
support services of a statistical consulting center, instrument, carpentry
and electronics shops. Some of the equipment includes: field sediment
imaging system, stream recirculating flume systems, field vehicles, mobile
16 ft laboratory, boats and motors, YSI datasondes with telemetry, field and
lab spectrophotometers, flow meters, automatic stormwater samplers, and sampling
equipment for collection of aquatic biota, sediment particle size fractionator,
elevation/stream gradient laser, centrifuges.
In addition, the Brehm Environmental Research Laboratory at Wright State University
houses an extensive array of analytical facilities. Six major laboratories
within this building are dedicated to environmental analyses with several GCs,
GC-, LC-MS, HPLCs, ICP, and AAS. The Brehm Lab is internationally recognized
for their PCB and dioxin analytical capabilities at ultralow detection limits
in complex matrices.
Trace Metal Biogeochemistry Laboratory
This facility includes multipurpose research space as well as a state-of-the-art Class 100 clean lab for trace-metal studies. The laboratory is equipped with:
- Multiple polypropylene hoods (fume and laminar flow)
- A MilliQ Elix and Element water purification system
- Mettler-Toledo analytical and top-loading balances
- Sorvall T1 centrifuge
- Tekran 2500 mercury detectors with custom flow-injection systems for analysis of total mercury and methylmercury
- VirTis 7-L benchtop freeze drier
- Teflon impingers, water sampling bottles, filtration systems, and digestion vessels
- Elan 9000 inductively coupled plasma mass spectrometer (ICP-MS) for trace metal analysis.
Environmental Geochemistry Laboratory
This facility is dedicated to the analysis of organic and inorganic chemical
species in environmental (soil and water) matrices. This lab is focused on
studies related to measurements of groundwater pollutants by anthropogenic
organic compounds, and bench scale investigations of treatment techniques.
The analytical equipment availbale for research include:
- Gas chromatograph (Hewlett-Packard Model 6890) with autosampler (HP
Model 7630), and Flame Ionization & Electron Capture detectors,
controlled by HP Chemstation software; equipment configured for quantification
of trace-levels of volatile, chlorinated and other hydrocarbons in environmental
(aqueous and soil) samples; both detectors simultaneously analyze for
greater confidence and resolution at trace level. A Tekmar Velocity
Purge and Trap unit with an autosampler added in 2006 to improve the
detection level of volatile organics.
- Reagent-Free Modular Ion Chromatograph System, with autosampler
(Dionex ICS-2500) with conducvity detectors, full automation capability
with PC based software (Chromeleon). This equipment was acquired in
August 2005, configured to analyze both anions and cations.
- Reduction Gas Analyzer (Trace Analytical Model RGD-32) for trace
level monitoring of gases by an isothermal gas chromatograph configured
with a Reduction Gas Detector (RGD) with sensitivity down to low
ppb levels, and negligible matrix effects from permanent gases.
- Other equipment in the lab include a HPLC System & Dynamax
UV Absorbance Detectors (Rainin-Varian), a new Perkin-Elmer UV-Vis
Spectrophotometer (Lambda 45) in 2007, a Plas-Labs Glove Box,
walk-in and regular fume hoods, sonicators, centrifuges, Barnstead
nanopure DI water system, YSI multiparameter sonde (Model 556
MPS), several portable and high-end benchtop meters, and a student
computing area with 4 PCs and a network printer
- Field research site at the Wright-Patterson Air Force Base include a experimental
treatment wetland created and designed to study the biodegradation of chlorinated
ethenes at pilot scale.
Sedimentological and Petrographic Laboratory
The preparation and analysis of soft-sediment and hard-rock samples are carried
out in this facility, and the equipment include the following.
- Zeiss petrographic microscopes
- Nuclide Cathodoluminescence luminoscope
- Interactive video-computer microscope system
- UV luminescence equipment
- Complete Logitech thin-section and rock preparation facility
- Sedimentological laboratory
- Photographic equipment and darkroom
- Mineral separation facilities
- Facilities for chemical analysis of rock samples
The instrutional programs and activities at the graduate
and the undergraduate levels are supported by a modern fleet of departmental
vehicles, drilling rigs, and technichians. A computer laboratory within the
department include a number of PCs and Macs computers and Sun Workstations
with a variety of common and specialized software (including ArcView 9, Canvas).
In addition, a state-of-th-art Geographic Information System or GIS laboratory
is located in the Millet Hall building on the main WSU campus. In addition,
the computer labs of the university is located campus wide in different buildings
which includes PC, and Mac laboratories, as well as supercomputer capabilities.
Library Facility on Campus
Laurence Dunbar Library, one of the University Libraries,
has significant holdings in the geological sciences, including a large
collection of U.S. Geological Survey documents and maps. The library houses
640,000 books and 4300 periodicals. The University Libraries participate
in the Federal Depository Library Program, the state of Ohio Depository
Program, and the U.S. Patent and Trademark Depository Program. The collections
include extensive holdings of U.S. Geological Survey documents & maps.
The Libraries' web site provides
access to these resources as well as to the Central
Catalog of OhioLINK, a consortium of 78 Ohio college & university
libraries. Over 100 databases, including GeoRef and Science
Citation Index Expanded, and thousands of electronic journals are
also available at the Libraries' web site.