Meeting/Event Information

Technical Talks: The Minnesota Section of AIPG holds technical talks September through May, generally the first Tuesday of the month. The talks are designed to fulfill 1 Professional Development Hour (PDH). Professional Geologists, as licensed in the State of Minnesota, are required to complete 24 PDHs every biennium licensing period, including 2 PDHs of ethics.  The technical talks feature important subjects of interest to professional geologists.

During the pandemic, we are webcasting our Technical Talks.  The cost is $10 for non-members and $5 for members. You must register by 11 AM the day of the talk to be sent the login link/information. Students may attend free of charge. Fees go toward supporting the online meeting platform and the Education Fund. Your contribution to the Education Fund helps support many activities, please see our Giving Back page.

The Minnesota Section of AIPG began using StarChapter Pay (instead of PayPal) as of February 24, 2021. StarChapter Pay is similar to PayPal and other online payment gateways.  Please follow the prompts on the registration screen and please note that there is a security prompt (I am not a robot - choose images as directed).  If you run into issues or have questions, please contact us!

As always, non-members and non-geologists are welcome to attend!

American Engineering Testing, Inc.

Introduction to Forensic Geology - Petrography

December 09, 2020
12:00 PM - 1:00 PM

American Geosciences Institute

Did you miss Chris Braaten's talk at our September meeting?  You're in luck!  Chris will be giving the talk again on Wednesday, December 9, 2020 at 12:00 PM Central Time, but this time through the Geoscience Online Learning Initiative (GOLI).

Webinar Description

Forensic Geology/Petrography is not a new tool in the construction industry; however, it is generally not a well-known discipline. Observations detailed in this presentation are not typically covered during University geological studies. Most of these skills are learned on the job and do require a minimum of 5 years of experience directly under a Petrographer to earn a Petrographer title. This presentation will provide the standards followed, typical observations, and a few fun projects. Petrography has proven a beneficial tool in the assessment of concrete and construction stone to aide in engineering and construction applications.

Instructor: Chris Braaten, PG, CPG

Chris Braaten, PG, CPG is a Senior Petrographer/Geologist at American Engineering Testing, Inc. He graduated from the University of Minnesota-Duluth with degrees in Geological Sciences and Environmental Studies. He has spent 15 years with American Engineering, holding positions in the Construction Materials Department as a Field Technician, Bridge Inspector, and Aggregate Laboratory Coordinator. For the last 9 years he has held a Petrographer position in the Petrography/Chemistry Department. He has performed petrography on construction aggregate from 46 US States and 17 different countries/territories.

CEU Credits

All registrants who attend the entire duration of this webinar will receive 0.1 CEUs from the American Institute of Professional Geologists (AIPG). CEUs for this webinar are sponsored by JEOL.


You can register for free online at