February 25, 2021: Dr. Steve Reynolds, Virtual Meeting

Mesozoic evolution of western Arizona and southeastern California

Abstract: Western Arizona occupies key segment of the North American cordillera. It represents the transition between subduction-related magmatism to the southwest with the stable continental platform to the northeast. Exploratory geologic mapping of mountain ranges in western Arizona led to the discovery of a key sequence of early Mesozoic rocks that record the arc-platform transition in space and time. The sequence correlates with well-known Mesozoic units on the Colorado Plateau, as verified by detrital zircon geochronology. It also records a previously unknown early Mesozoic uplift event. The Mesozoic rocks, along with underlying Paleozoic units, are spectacularly deformed by overturned folds and ductile thrust faults of the Maria Fold and Thrust Belt.


Reynolds is a professor in the School of Earth and Space Exploration at Arizona State University, where he has taught Physical Geology, Structural Geology, Advanced Field Geology, Orogenic Systems, Cordilleran Regional Geology, Teaching Methods in the Geosciences, and others. He helped establish the ASU Center for Research on Education in Science, Mathematics, Engineering, and Technology (CRESMET) and was president of the Arizona Geological Society. He has authored or edited more than 200 geologic maps, articles, and reports, including the 866-page “Geologic Evolution of Arizona.” He has authored three innovative textbooks for introductory college geoscience courses: “Exploring Geology,” “Exploring Earth Science,” and “Exploring Physical Geography.” He also coauthored “Structural Geology of Rocks and Regions,” a widely used structural geology textbook and “Observing and Interpreting Geology, a Laboratory Manual for Physical Geology.” His current geologic research focuses on structure, tectonics, stratigraphy, detrital-zircon provenance studies, and mineral deposits of the Southwest, including northern Mexico. For nearly 20 years, he has done science-education research on student learning in college geology courses, especially the role of visualization. He was the first geologist with his own eye-tracking laboratory, where he and his students have researched student learning, demonstrating that students learn more when using materials with integrated text and figures compared to material in traditional textbooks. Steve is known for innovative teaching methods, has received numerous teaching awards, and has an award-winning website. He was a National Association of Geoscience Teachers (NAGT) distinguished speaker, and he travels across the country presenting talks and workshops on how to infuse active learning and inquiry into large introductory geoscience classes. He is commonly an invited speaker to national workshops and symposia on active learning, visualization, and teaching methods in college geoscience courses. He has been a long-time industry consultant in mineral, energy, and water resources and environmental issues, and has received outstanding alumni awards from UTEP and the University of Arizona.

President’s Professor Steve Reynolds’s body of work on the geology of Arizona and surrounding regions of the North American Cordillera is, put simply, unmatched—encompassing his graduate work at UA, his years with the Arizona Geological Survey, and his tenure as a revered faculty member here at Arizona State University. In addition to numerous published papers, reports, and geologic maps, Steve’s ubiquitous products on Arizona geology include the widely cited volume Geologic Evolution of Arizona and the State Geological Map of Arizona. Arizona geology also flavors the many innovative geoscience textbooks and lab manuals Steve has authored. His research spans tectonics, structural geology, stratigraphy, geochronology, groundwater and environmental geology, mineral deposits, and geoscience education. Steve has shared his incredible expertise in the field and in the classroom with generations of ASU Geological Science and SESE students (and colleagues!) and has mentored many successful MS and PhD students. -Dr. Steve Semken

More resources: http://reynolds.asu.edu/

Land Subsidence and Earth Fissures: Workshop, Field Trip & Social

We are pleased to host the final meeting of the UNESCO-IGCP641 Project regarding land subsidence and earth fissuring in Arizona and the Southwest! The meeting will take place November 4-6, 2019 at Arizona State University’s Tempe Campus. 

Monday, November 4th:

We will be holding an IGCP641 Board and local experts meeting. This meeting is by invitation only. You will be contacted individually to join this meeting.

Tuesday, November 5th: Land Subsidence/Earth Fissures Workshop

RSVP for the Land Subsidence and Earth Fissures Workshop by CLICKING HERE. This event will be limited to 200 attendees. Registration and payment through PayPal is required prior to the event, cash or credit will not be accepted onsite.

There is a great series of presentations running throughout the day. For a full list of those presenting and other details, CLICK HERE. The workshop will run from 8:00am to 5:00pm in the Memorial Union Ventana Room, 214BC. Breakfast and lunch will be provided, with coffee, lemonade, water, and snacks available throughout the day. Vegan and Vegetarian options will be available. Everyone is on their own for dinner, but we highly encourage collaborating with those you know and meet at this workshop!

Wednesday, November 6th: Land Subsidence/Earth Fissures Field Trip

RSVP for the Land Subsidence and Earth Fissures Field Trip by CLICKING HERE. This event will be limited to 65 participants. Registration and payment through PayPal is required prior to the event, cash or credit will not be accepted onsite.

This field trip is a great opportunity for those seeking to observe three local areas of interest, with demonstrations on how earth fissures affect structures, and methods to detect fissures. For a listing of field trip activities, in addition to parking and other details, CLICK HERE.

The field trip will run from 8:00am to around 3pm. We will meet at the Gammage Theater parking lot near the Memorial Union on Tempe campus at 8:00am to get on a charter bus to visit 3 areas of interest. These areas are within the Phoenix metropolitan area, so long bus rides are not expected. Please remember to wear appropriate footwear and clothing. We will not be doing anything strenuous, but will be walking on dirt roads for short periods of time under the sun. There will be water and snacks available, but please bring anything else you require to make this trip comfortable and enjoyable. Lunch will be provided and will eat in the field during our field trip. Vegan and Vegetarian options will be available. Once we get closer to the time, we will reach out for lunch orders. 

To conclude the day and the final meeting of the UNESCO-IGCP641 project, we will be holding a social event after the field trip on November 6th from 7pm to 10pm at Fate Brewing Company, Scottsdale: 1312 N Scottsdale Rd, Scottsdale, AZ 85257. Dinner and drinks will be provided, with additional drinks and items available for purchase from the bar menu. We will have some brief closing statements and plan to spend the evening celebrating and socializing together. It should be a blast, and we look forward to seeing you! RSVP for the November 6th social event by CLICKING HERE. Cash or credit payment will also be accepted at the door.

If you have any questions, please reach out to Danielle Smilovsky (AEG contact): dsmilovs@asu.edu or Brian Conway (IGCP641 contact): bdconway@azwater.gov

Fall Meeting: Oct. 15, 2019

AEG 2019 Fall Social at GSA

The Association of Environmental and Engineering Geologists welcomes the public to attend our social event on Monday, September 23rd, 2019. We are excited to have the 2018-2019 Jahn’s Distinguished Lecturer- Deborah Green speaking on a topic relating to applied geology. Please click to RSVP here, payment will not be accepted at the door! There will be food and drinks offered throughout the event. This social will be held outside of GSA conference hours, thus a GSA pass is not required for entry.

Date and Time: Monday, September 23rd, 2019 from 5:00 to 8:30pm

Location: Phoenix Convention Center- North Building, Room 226 ABC

Food Selection (Free with ticket)

  • Southwestern chicken skewer, cilantro creme
  • Chipotle steak skewers, onion poblano, red pepper
  • Chacuterie board
  • One drink ticket per person, cash bar afterwards

Biography of Jahns Distinguished Lecturer- Deborah Green

I’ve worked as an environmental and engineering geologist for 34 years in consulting and industry. For more than 20 of those years I’ve been self-employed. I discovered my love for geology as a kid when my earth science teacher father informally taught me all sorts of things about rocks on our summer camping adventures. I earned a B.S. in geology from the University of Rochester and an M.S. in engineering geology from Texas A&M University.

These days, I spend most of my work time writing. I recently completed my first novel, which is loosely based on a period in my late husband’s life when he was the Chief Foundation Geologist for a large dam in East Central Turkey from the late 1960’s to the early 1970’s. On my website, www.geologistwriter.com, you can read essays in which I strive to understand and convey the wonder of the landscape and the complexity of earth processes, while also exploring the terrain of our lives.

July Dinner Meeting – 2019

2019 ASU Geosciences Career Night

Join the Phoenix Chapters of the Association of Environmental and Engineering Geologists (AEG) and Geo-Institute (G-I) at the 13th annual student night on April 16th, 2019 from 6-9pm. This is an opportunity for students to learn how diverse the geologic field is and what types of positions are available as a professional. We will pair students and professionals for mock-interviews for the students and lightening talks by professionals. This is also a night for professionals to meet students and learn what they are studying and what they hope to do once they graduate. Don’t miss out on this terrific networking opportunity!                                

The event will be held at the Ventana Room of the ASU Tempe Student Memorial Union (301 E. Orange Mall, Tempe, AZ 85281). For directions, please refer to the map of the ASU Campus and Student Memorial Union, or visit http://www.asu.edu/map/interactive/.

Cost is 40 dollars for non-members, 30 dollars for AEG or G-I members, and free for all students. A buffet dinner will be provided. For companies wishing to sponsor a table at the event, the cost is $100 per table and will include admission for two representatives. Companies represented with a table will also have sponsorship recognition in a slideshow. There is a limited number of tables and speaker slots available. Please contact Daniel Rosenbalm with G-I at 480-659–4101 with questions, or email aeg.arizona@gmail.com.

RSVP (including table and speaker reservations) at: http://events.constantcontact.com/register/event?llr=k98vleyab&oeidk=a07eg5sf9dz2a55067b

Hosted By: AEG, G-I

March Dinner Meeting – 2019

March Dinner Meeting – 2019

Mapping Grand Canyon Conference

Join us February 28 through March 1, 2019 at the Mapping Grand Canyon conference at ASU!


AEG Holiday Social – 2018

RSVP – Click here

Join us December 3, 2018 for our Holiday Social.

September Dinner Meeting 2018 – Joint Meeting with GI


Geotechnical Special Presentation

Arizona Chapters for the Geo-Institute and Association of Engineering and Environmental Geologists Presents:


Speaker: Julian Tao, Ph.D,
Associate Professor at Arizona State University

Date: Wednesday, September 19, 2018 — 5:30 p.m – 8:00 p.m.

Location: McFate Brewing Company 1312 North Scottsdale Road Scottsdale, Arizona 85257

$30.00 Members and Non-Members; $15.00 Government Employees and retirees; $10.00 Students Please RSVP by Monday, September 17, 2018