Petrology Lab

The UAF Petrology Laboratory is a modern research facility for studying magmatic processes at high temperatures and pressures. The Petrology Lab also conducts research on porous materials. The lab provides high quality spectroscopic and porous media analytical services for a wide range of research and industry applications. Combined with the resources housed in the UAF AIL, the Petrology Lab and affiliated personnel can provide a comprehensive suite of analytical and research data products for a variety of geoscience research needs.

Research and analytical capabilities:

1) High pressure-temperature experimental petrology research. The UAF Petrology lab houses hydrothermal and solid media experimental apparti in support of petrology and volcanology research: a) phase equilibria studies from 1 atmosphere to ~1GPa pressure and temperatures to ~2000 C using established hydrothermal or solid media (piston-cylinder) methods and controlled or monitored oxygen fugacity; b) volatile solubility and speciation research applicable to natural volcanic and synthetic melts/glasses; c) vesiculation and crystallization kinetics studies during stepwise and continuous decompression pathways

2) Pore structure analyses on natural and experimental rock samples. Current lab resources include equipment to measure porosity, skeletal density, granular sample density, permeability, electrical resistivity, and maximum pore throat radius in porous rock samples. Although the lab applies these analyses to volcanic processes, the equipment can be applied to other areas of geoscience and enigneering including: petroleum and gas exploration, permafrost and soil studies, construction materials.

3) Micro - Fourier Transform Infrared Spectroscopy. The Petrology Lab maintains a Thermo Fisher Nicolet 6700 research grade infrared spectrometer with attached Continuum Microscope. This instrument provides transmission and reflectance infrared spectra of a wide variety of materials, including: hydrous and CO2 bearing silicate glasses, minerals, chemicals, plastics, and other materials with molecular vibrational bands in the mid-infrared. The microscope has two detectors, with its small area detector capable of resolving features as small as 10 by 10 microns. The instrument also has Attenuated Total Reflectance objectives with diamond and ZnSe crystals and a Linkham heating and cooling stage for in-situ analyses under elevated or reduced temperatures and variable gas atmospheres.

Analytical Fees

The Petrology Lab will provide analytical services to customers within and outside of the state of Alaska. Please contact the lab PI Jessica Larsen to arrange for analytical services, discuss data needs, and review analytical service costs. A list of analytical fees associated with each type of data service can be found in the drop down menu by hovering the mouse over the Analytical Fees menu item to the right.

Micro-FTIR Spectroscopic Analyses

The UAF Petrology Lab provides microspectroscopic analyses suitable for customers and researchers investigating a wide range of research topics. The research grade, Thermo Fisher Nicolet instrument is capable of qualitative (peak identification) and quantitative (concentrations of absorbing molecules) transmission, reflectance, and attenuated total reflectance analyses:

Training rate - $150 per day for instrument training or assistance requiring more than 60 minutes of PI Larsen's time.

Basic daily usage rate - $75 per day for self sufficient and independent use after completing training.

Expert data collection services - $120 per hour for PI Larsen to collect analyses for your project. This includes experimental design and novel research services.

Basic data collection services - $60 per hour for student collected analyses for non-critical or basic assessment analyses.

Pore Structure Analyses

The Petrology Lab houses equipment to analyze porous material structural properties. The lab maintains the following pore structure analytical equipment:

1) HumiPyc 2 helium pycnometer for solid and granular material densities
2) Bench-top gas permeameter (employing compressed air) with a versatile sample holder that can accommodate (core and non-core) samples from <5 mm to >5 cm in both diameter and length
3) Electrical resistivity analyses using a versatile sample holder and Instek LCR-821 LCR meter
4) Maximum pore throat radius analyses are also produced using modified sample holders in the permeameter and pycnometer
5) Portable field permeameter (TinyPerm 3) and rock core drilling equipment

Pore Structure Analytical Rates (1 analysis per sample). Replicate analyses available on request for additional fee:

He-pycnometer analyses - $50 per sample.
Permeability analyses (lab) - $75 per sample.
Electrical resistivity analyses - $100 per sample.
Pore throat radius - $25 per sample
Field permeameter rental - price available on request
Core drill rental - price available on request

Field permeability and core sampling services - $120 per hour, 4 hour minimum. Costs for transportation to and from field location negotiable.

Contact

The UAF Petrology Lab is located in the Reichardt building on the West Ridge part of the campus.

To contact the lab regarding analytical work, please email Jessica Larsen: jflarsenalaska.edu or call 907-474-7992

Physical Address:
Room 225 Reichardt Building

Mailing Address:
Jessica Larsen
Room 308 Reichardt
Department of Geosciences
900 Yukon Drive
Univ. of Alaska, Fairbanks
Fairbanks, AK 99775

Lab Phone Number: 907-474-7686
Prof. Larsen: 907-474-7992

Links

Personnel

Professor Jessica F. Larsen - Lab Director

Amanda Lindoo - PhD student

Rebecca deGraffenried - MS student

Andrew Dunn - Lab Technician

Dakota Reimann-Kershner - Undergraduate Research Assistant

Publications

The UAF Petrology Lab has amassed a number of publications and published abstracts since it was established in 1998 at UAF. Lists of publications can be difficult to keep up to date. We invite you to visit our Google Scholar page to see a partial list and citation statistics for Petrology Lab related publications from the past 15 years.

UAF Petrology Lab Google Scholar Citations

Research

This area is under construction.

Student Research Opportunities

This area is under construction!