UNL Geophysics Group

 

The Geophysics Research Group exists at the Department of Earth and Atmospheric Sciences since August 2016. Unlike many other geophysical research programs that focus on the application or development of a single geophysical method, our group, led by Dr. Irina Filina, utilizes the integrative approach in geophysical data analysis. We are looking for the answer (i.e. the geological model of the subsurface) that fits ALL available geophysical data and remains geologically valid. The data we use include seismic (reflections, refractions, earthquakes), gravity and magnetics both from public domain sources, as well as acquired by our own instruments.

Research

Our group conducts research in several directions (more details here and here):

  • Tectonic history of the Gulf of Mexico
  • Geophysical studies in Nebraska
  • Crustal structures of the Cascadia subduction zone
  • Investigating the continental status of Zealandia

The students of UNL Geophysics team present their results at  professional meetings (see here), and at the local venues as well.

  • Nebraska Academy of Sciences annual meetings
2019 H. Botten*, I. Filina, Variations in subsurface seismic velocities in Central Nebraska determined from 2018 earthquake cluster, Proceedings of 139th annual meeting of Nebraska Academy of Sciences, p. 113
2019 E. Parsons*, I. Filina, Assembling the Huskers seismometer, Proceedings of 139th annual meeting of Nebraska Academy of Sciences, p. 113
2019 E. Jacobson*, I. Filina, Developing a drone-based magnetic field surveying system, Proceedings of 139th annual meeting of Nebraska Academy of Sciences, p. 115
2019 P. Szopinski*, I. Filina, Geophysical analysis of the Midcontinent Rift’s subsurface structures in Southeastern Nebraska, Proceedings of 139th annual meeting of Nebraska Academy of Sciences, p. 114
2018 C. Richardson*, C. Burberry, I. Filina, Geologic history of the New Caledonia basin with implications for the geodynamic history of Zealandia, Proceedings of 138th annual meeting of Nebraska Academy of Sciences, p. 91
2018 K. Guthrie*, I. Filina, C. Burberry, M. Searls, Subsurface faults related to midcontinent rift in Nebraska from integrated geophysical analysis, Proceedings of 138th annual meeting of Nebraska Academy of Sciences, p. 91
2018 M. Liu*, I. Filina, Integrated analysis of geological and geophysical data in the northeastern Gulf of Mexico, Proceedings of 138th annual meeting of Nebraska Academy of Sciences, p. 94
2018 L. Hartford*, I. Filina, Subsurface structures of southeastern Gulf of Mexico from integrated geophysical analysis, Proceedings of 138th annual meeting of Nebraska Academy of Sciences, p. 95
2017 E. Quartoroli, M. Searls*, I. Filina, Subsurface structure of the Midcontinent Rift in SE Nebraska, Proceedings of 137th annual meeting of Nebraska Academy of Sciences, p. 80
2017 M. Liu*, I. Filina, Integrated geophysical studies in the Northeastern Gulf of Mexico, Proceedings of 137th annual meeting of Nebraska Academy of Sciences, p. 81

  • ULN Spring Student Research Fairs
2019 H. Botten*, I. Filina, Variations in subsurface seismic velocities in central Nebraska determined from 2018 earthquake cluster
2019 E. Parsons*, I. Filina, Assembling the Huskers seismometer
2019 E. Jacobson*, I. Filina, Developing a drone-based magnetic field surveying system
2019 P. Szopinski*, I. Filina, Geophysical analysis of the Midcontinent Rift’s subsurface structures in Southeastern Nebraska
2018 C. Richardson*, C. Burberry, I. Filina, Geologic history of the New Caledonia basin with implications for the geodynamic history of Zealandia
2018 M. Liu*, I. Filina, Integrated geophysical analysis in the northeastern Gulf of Mexico
2018 L. Hartford*, I. Filina, Subsurface modeling by integrated geophysical analysis in the Southeastern Gulf of Mexico
2017 P. Szopinski*, I. Filina, Comprehensive geophysical analysis of the Kwanza Basin of Angola, Africa
2017 E. Quartoroli*, M. Searls, I. Filina, Geophysical data analysis of the Midcontinent Rift, Nebraska
2017 L. Hartford*, I. Filina, Geophysical analysis of Southern Gulf of Mexico
2017 M. Liu*, I. Filina, Potential fields analysis in the Northeastern Gulf of Mexico

FieldWorks 2019

Drone-based magnetic measurements

Walking magnetic survey

                                                

Gravity Surveying

   

Please check out our Publications, Opportunities, and Outreach

 

Geophysics classes

Dr. Filina teaches the following courses:

Course ID

Course title

Description

Semester offered

GEOL344

Introduction to Geophysics

Geophysical techniques to study the Earth: seismology, gravity, magnetics and heat flow.

Every Fall

GEOL445/845

Advanced Geophysics

Integrative analysis of geophysical data (gravity, magnetics, seismic) with geological information (well logs, tectonic history, etc.)

Spring semester of every even year

(ongoing in Spring 2020)

GEOL446/846

Exploration Geophysics

Geophysical methods used for petroleum exploration: potential fields, seismology, electrical and electromagnetic surveying.

Spring semester of every odd year

(next will be taught in Spring 2021)

GEOL947

Seminar in Geophysics

An essential seminar for students conducting research in Geophysics.

will be offered in Spring 2021

GEOL498/898

Field Methods in Geophysics

Collecting multiple geophysical datasets in Nebraska with instrumentation from UNL Geophysics Lab; data processing and interpretation

Was offered in Fall 2019; please let me know if you are interested in this class

GEOL498/ 898

GIS in Earth and Atmospheric Sciences

Basic principles of ArcGIS

Offered in Spring and Fall 2019; will be offered again in Fall2021

GEOL498/898

Basin Analysis

Principles and application to petroleum play assessment

Will be offered if there is enough interest from students seeking a petroleum-oriented career. Please let Dr. Filina know if you want this class!