 PRESIDENT'S CORNER:
Hello SDAG Members,
We had an amazing joint meeting with Geo-Institute for our May meeting held at Sufi
Mediterranean Cuisine, where we had around 90 people attend! Dr. Sebastian Lobo-
Guerrero delivered a phenomenal presentation where he educated us on ways to evaluate
and approach slope stability problems. The way he delivered his talk was beyond
entertaining and captivating. Also, it was a perfect blend of geology and geotechnical
engineering! Thanks to everyone who was able to attend, and special thanks to Kelly
Overturf (Geo-Institute Secretary/Treasurer) for being the one who initiated having a joint
meeting with Geo-Institute this year! Let's do it again!
As many of you all know, one of our beloved SDAG members, Carole Ziegler, passed away
while hiking the Pacific Crest Trail on Saturday, May 10th. She will be deeply missed and we
will be including a memorial page for Carole in this year's Annual SDAG Field Trip
Guidebook.
Speaking of the Annual SDAG Field Trip, as a reminder the field trip will be held this
September 26th to 28th, where we will explore the San Andreas Fault near the Wrightwood
area! So, mark your calendars! If you're interested in attending or would like more
information, keep an eye out for an email from me following this June newsletter that will
include additional details and the registration form. These details and registration form will
be posted on our website. Please note, the field trip is limited to the first 50 paid attendees
and due to having to postpone this field trip from last year because of the Bridge Fire,
numerous folks kept their paid spots, so we actually only have 27 spots remaining!
For our June 18th joint meeting with South Coast Geological Society, I am happy to
announce we will be returning to El Adobe De Capistrano in San Juan Capistrano! Our
speaker will be Dr. Miles Kenney, an independent consulting geologist at Kenney
GeoScience, who will give a presentation on the controversial Beverly Hills fault. You're not
going to want to miss this presentation! Just a friendly reminder Wednesday June 11th is the
last day to sign up!
Thanks, and see you all at the June 18th Meeting!!
Heather Reynolds
2025 SDAG President
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Celebration of Life - Carole Ziegler
We invite you to join us in honoring the life of Carole Ziegler.
Date: Thursday, June 12, 2025
Time: 5:30 PM
Location: The Thursday Club
Address: 1224 Santa Barbara St, San Diego, CA 92107
Please dress casually and wear bright colors. [Link to Obituary HERE]
2025 Annual Field Trip - September 26-28, 2025!
SAN ANDREAS FAULT: EXPLORING QUATERNARY GEOLOGY ALONG BIG PINES HIGHWAY
This year's trip takes us exploring the San Andreas Fault within the Transverse Ranges in the San
Gabriel Mountains. The trip takes place September 26 to 28, 2025 (Fri, Sat, Sun). We will be staying
two nights at The Lions Camp at Teresita Pines located about 6 miles northwest of downtown
Wrightwood. The trip is planned for half day Friday and full days Saturday and Sunday. The trip
focuses on geological stops along the San Andreas Fault from northwest of Wrightwood to Valymero
along Big Pines Highway which are included in SDAG's 2025 Field Trip Guidebook San Andreas
Fault: Exploring Quaternary Geology along Big Pines Highway, Wrightwood, CA. The field trip will
be led by Dr. Miles Kenney who completed his dissertation in this area and will explore over a dozen
scenic stops revealing the interrelationship between late Quaternary time-transgressive
sedimentation of the Victorville Fan, and related uplift, folding, and faulting of underlying bedrock.
Dr. Monte Marshall will also provide a historical perspective of the scientific understanding of the
San Andreas Fault in the 120 years since it caused the terribly destructive 1906 San Francisco
Earthquake.
Our reserved lodging includes cabins with bunkbeds, bathrooms, and showers. There are plenty of
beds in the cabins but if attendees prefer to sleep in their own tent or an RV, there is a camping
area with a large bathhouse and limited space/access for a couple RV's. There are no RV hook
ups. Please let me know if you're planning to sleep in a tent or wish to bring an RV. Accommodations
outside of Lions Camp at Teresita Pines are not included in the registration cost and must be
reserved independently (Airbnb's, Motels/Hotels, etc.).
The registration form on page 3 can be paid by credit, cash or check at an SDAG meeting; or you
can print page 3 and see instructions to mail your form with a check. Paid reservations must be
received no later than Sept 5th, 2025. The trip is limited to the first 50 paid.
*A detailed itinerary will be emailed to attendees prior to the trip. Pay for your spot now!
What is included in your fee:
- 2 Nights Lodging at Lions Camp at Teresita Pines:
- Cabins:
- 8 cabins with a total of 50 bunkbeds. No bedding provided. Bring your own
sleeping bag and pillow. One cabin is ADA accessible.
- Insulated and heated with bathrooms and showers inside each cabin.
- Tent Camping:
- Tent sites, some with tables and fire pits. Bring your own camping
equipment.
- A bathhouse (9 bathrooms, 4 showers, 5 sinks and electricity).
- Lions Camp Property:
- Lodge/Dining Hall with A/C, heat, electricity, large fireplace, and lounge area. Will
use for evening talks and meals.
- Outdoor amenities - amphitheater, fire pits, volleyball, horseshoe pit, basketball,
gaga pit, hiking trails, and access to Jackson Lake.
- Option for use of climbing wall, swimming, archery, or canoeing. Please indicate
your interest in these activities on your registration form. I will try to arrange one or
more activities.
- NO WIFI (landline phone for emergencies). NO pets allowed.
- 6 Meals: Friday dinner. Saturday hot breakfast, field sack lunch, hot dinner. Sunday hot
breakfast, lunch. If you have vegetarian/vegan or other special requests please note on
your registration form. Meals served cafeteria style (except for sack lunch) in Dining
Hall. Hot and cold beverages available 24 hours a day in Dining Hall.
- Snacks and beverages throughout trip
- 2025 Field Trip Guidebook
- SDAG Trip Logo Item – souvenir insulated water bottle
What is NOT included in your fee:
- Transportation/4X4: Carpooling is highly recommended; we can help with
coordination. Parking is limited at field trip stops. High Clearance 4X4 vehicles are
recommended for a couple field trip stops.
- Fishing license
- Camping gear and bedding
- Other lodging accommodations: https://www.mthigh.com/site/mountain/during-your-
stay/lodging.html
- Be sure to bring your cameras, scales, hand lenses, rock picks, and other geology
gear!
Important Details:
- September 5, 2025 - Last day to Register.
- Field Trip is Limited to the first 50 paid attendees.
- September 26 – 28, 2025: Field trip starts at 12:00 pm Friday!
- Registration form and a signed release of liability waiver is on pages 3 and 4.
*Please make sure all attendees sign it including kids and spouses
Download information/reservation form.
2025 SDAG MEMBERSHIP
Renew or become a new SDAG Member - 2025 Member Dues are Due!
On-line Payment ($30 Member; $10 Student):
https://www.sandiegogeologists.org/MemberForm.pdf
Mail in or Bring FORM to Meeting:
https://www.sandiegogeologists.org/MemberForm.pdf
2025 Corporate SDGS Sponsors
Renew or become a new 2025 SDAG Sponsor - Minimum $100 includes annual Membership.
https://www.sandiegogeologists.org/Sponsors.html
On-line Payment or Mail in Form:
https://www.sandiegogeologists.org/SponsorForm.pdf
CALL FOR PAPERS
From Past President Jennifer Morton:
Hello Geo Community! I am currently working on my Master's degree at SDSU. Part of my thesis will include compiling a
geodatabase of investigations on the La Nacion fault system. If anyone has done any trenching or other work on the
fault and is willing and able to share the information I would greatly appreciate it! Thank you and Happy Holidays!
Publications
Based on the interest for the out of Print 1998 SDAG Book "Geology and Geothermal Resources of the Imperial and Mexicali Valleys" this book
is now available as a Google E-Book. Due to the age of this book, not having any electronic files, the need to update to color etc...
the decision was made to create an e-book from a scan of the book. The link to purchase this book is now live on the SDAG website
(Lowell Lindsay's 1998 Geothermal Book!).
Here is the link to the SDAG Publication web page https://www.sandiegogeologists.org/Publications.html and a screen shot below showing
this E-Book. Thanks for the donated book from the Lindsays, Dave Bloom for scanning the book and posting it on our Google E-Book site,
and Carolyn Glockhoff for adding the link to our SDAG Publication page - now this out of print book can now be purchased as an e-Book!
In the news ...
 Palynology Library & Equipment Donation
Norrie Robbins is generously donating her palynology library, posters, and some microbiology/palynology lab equipment. If you're interested, please contact her directly:
619-890-3696 or norrierobbins@cox.net
ONE-STOP WONDER CHALLENGE!
ONE OSW A MONTH IN 2024
BE A PART OF SDAG HISTORY!
Have an idea for a one-day or half-day field trip?
Want to share your favorite aspect of San Diego geology?
Contact SDAG to schedule your One-Stop Wonder!
Your OSW may be chosen to be included in SDAG's One Stop Wonder Guidebook!
Contact Monte Murbach for scheduling! montemurbach@gmail.com
DID YOU KNOW THAT SDAG HAS A FACEBOOK PAGE?
Here is a link to the SDAG Facebook page: https://www.facebook.com/sandiegogeologists.org
As part of the update for the San DiegoTijuana Earthquake Planning Scenario, Working Group No. 1's "Fault Map Subcommittee"
completed the first publicly available bi-national active and potentially active fault map (http://sandiego.eeri.org/?page_id=265).
This interactive GIS map includes the first publicly available active and potentially fault map locations from the City of San Diego.
The map also integrated the faults south of the border for a bi-national cross border view.
This map is an on-going project as our knowledge increases about local active and potentially active faults.
You can expand the map legend on the left side to select layers that can be turned on or off for the map view.
You can also select from 1 of 12 base maps at the base map icon. You can click on the fault line in your map layer view to see the meta-data source.
In addition, the City of San Diego Seismic Safety Study Geologic Hazards & Faults Maps are available in the layer titled "GeoHaz SD City."
Please note that the City "Zone 12 Potentially Active" fault layers was not included in this data, therefore you will need to use the City Maps to find Zone 12.
The Fault Map link is available at: http://www.sandiegogeologists.org/Faults_map.html
I would like to thank Carolyn Glockhoff for her endless GIS work, Jim Quinn and the City for providing their data and time, Jerry Treiman with CGS for his time preparing the Surface Rupture
and providing their new State fault data layer, and Luis Mendoza at CICESE for providing the faults south of the border.
Please contact Diane Murbach (dianemurbach@gmail.com 619-865-4333), Chair for the SDTJ Earthquake Scenario Working Group #1 - Earth Science, if you have any questions, or see any errors on this new fault map.
Diane Murbach
(619) 865-4333
Engineering Geologist, C.E.G.
www.murbachgeotech.com
Photo of the Month
CALL FOR ARTICLES! SDAG invites members to submit articles on their current research or an interesting project they are working on for publication in the monthly newsletter.
The article should be no more than 1 page in length. Photos are welcomed, too! Please submit articles to the SDAG secretary via email.
Yosemite Conservancy Outdoor Adventures featuring custom adventures.
Got too many rocks?
Are you (or specifically, your spouse...) interested in giving them a good home *away* from your house and garden?
Mesa College is looking to collect some rock samples for an inaugural Earth History course.
We are specifically looking for sedimentary rocks that include examples of different energy environments (varying grain sizes and shapes) and structures (ripples, cross bedding, planar bedding, graded bedding, etc.).
We are also looking to beef up our fossil collection and are looking for all the major phyla: Echinoderms, brachiopods, mollusks (bivalves, cephalopods, gastropods), arthropods (trilobites and more!), corals (Cnidaria), Porifera, Bryozoa, vertebrates (Chordata), etc.
Looking for both actual standalone specimens or in the rock still (showing different environments of deposition).
We are looking for fossil preservation examples, and also for good trace fossil evidence.
Got any sediment grain samples from cool locales? We'll take them! If you have anything else you think provides a good 'story' in the rock, we are willing to check it out!
We are collecting ASAP to assess how much needs to be ordered for the fall course.
Please contact Jill Krezoski at JillKski@hotmail.com or Don Barrie at dbarrie@sdccd.edu with queries or samples.
Annual Scholarship Awards by the San Diego Association of Geologists, a program of the San Diego Geological Society, Inc.
A primary function of the San Diego Association of Geologists (SDAG) is to support academic opportunities in geology and related sciences.
By-laws of the San Diego Geological Society (SDGS) specify the support of academic opportunity ranging from elementary through graduate levels.
The SDAG scholarship program has supported academic research in higher education by awarding scholarships annually to students from two-year and four-year undergraduate and master's level programs.
Awards are for outstanding research in geology and related sciences.
Nominations are solicited from individual faculty and from geology or related science departments at accredited academic institutions.
Evaluation of the relative merit of each nominee is based on an abstract describing the objectives and results of the research being conducted by the student and on the letter of recommendation by the student's mentor or nominating committee.
The annual timeline is as follows:
- Request for nominations occurs in September.
- Nomination letters and research abstracts are received by the Scholarship Coordinator in mid to late October.
- Awardees and their nominators are invited to attend the December SDAG dinner meeting. Scholarship awards are distributed to the student during the December meeting.
- Students accepting awards are required to give a presentation of their research results usually at a spring dinner meeting of SDAG.
For further information contact SDGS Board at
http://www.sandiegogeologicalsociety.org/contact.html
through the Contact Us option
SDAG RESEARCH TOOL
A comprehensive listing of all papers published by SDAG, whether as annual field trip guidebooks or special publications, is available on our website.
Entries are sorted by primary author, or chronologically by date of publication, from our first guidebook in 1972,
up the San Luis Rey River in 2013, from Coast to Cactus in 2014, and finally over the edge to the Coyote Mountains in 2015.
These can be accessed or downloaded as .pdf files.
They are fully searchable in Adobe Reader or Acrobat, so if you are researching a topic, "tsunami" for example,
you can search for that keyword. This listing will be updated as new books are published.
Thanks to Greg Peterson and Hargis + Associates, Inc., for making this possible.
See the links below:
SDAG publications sorted by senior author.
SDAG publications sorted chronologically.
Request for Sponsors: 2025 SDAG/SDGS and Publication SPONSORS
On behalf of the San Diego Geological Society, Inc. (SDGS), a public benefit 501(c)3 nonprofit
educational corporation, we would like to request tax deductible Donations at our San Diego Association
of Geologists (SDAG).
The list of paid Sponsors and the forms to become a Sponsor are located on the SDAG web site at:
http://www.sandiegogeologists.org/Sponsors.html.
Your donation will further the SDGS mission to promote geology and related fields in the greater San
Diego region, operating through the San Diego Association of Geologists (SDAG), a committee of
SDGS. To achieve our primary educational objective, we organize frequent field trips and maintain a
program of monthly meetings featuring speakers on current geological topics. We also publish field trip
guidebooks and other publications related to geology and natural history. We encourage scholarship and
research by awarding scholarships from the elementary through graduate levels. With your $100
"EMERALD" donation, your name/business will be listed as a sponsor on the SDAG web site
(http://www.sandiegogeologists.org/) and in the monthly SDAG meeting newsletters. With your $500
"RUBY" or $1,000 or more "DIAMOND" level donation, your business card will also be included on the
SDAG web site and in the monthly SDAG meeting newsletters. In addition, as a "$1,000 or more
DIAMOND" level donation you will be presented with a thank you plaque.
Should you have any questions
regarding a Sponsorship, please contact our non-profit SDGS Secretary (Diane Murbach) at 619-865-4333.
SDGS/SDAG
As many of you are aware, the San Diego Geological Society (SDGS) was formed in early 2010 as an
official non-profit 501(c)3 corporation, and SDAG is now an organization under this corporation. The
reasons for doing this were many and they are spelled out in an informational sheet, the Business Plan
of SDGS. The officers of SDGS should be very familiar to you, as they are all past presidents of SDAG.
For those of you that would like to read more about SDGS and what it means to SDAG, check out the
informational page on the website.
Also check out the website www.sandiegogeologicalsociety.org.
VINTAGE SDAG GUIDEBOOKS NOW AVAILABLE FOR FREE DOWNLOAD!
If you want to complete your collection, or just see what SDAG was up to in the 1970s, check out our website's
publication page, and scroll all the way down: http://www.sandiegogeologists.org/Publications.html
In addition to our very first publication in 1972, a field trip to Otay Mesa, you'll find our 1973
Geology and Hazards of San Diego volume, the first of two guidebooks to the Coronado Islands, in
1978, and our 1987 field guide to the gold mines of Julian. Happy reading!
SDAG Wear - Monte (Murbach) has a variety of shirts, hats, visors and even a nice vest with the SDAG logo.
A small selection is available for purchase at the meetings; all SDAG wear can be ordered from Monte.
DO YOU HAVE AN ANNOUNCEMENT?? Do you have an event, job opening, field trip or other announcement you would like to share with our members??
Just call or email our SDAG Secretary.
Wednesday seminars, 1 - 2 pm, SDSU in the Chemistry-Geology Building, room CSL-422.
Check http://www.geology.sdsu.edu/seminars/ for details.
Department of Geological Sciences
San Diego State University
San Diego, CA 92182-1020
FAX (619) 594-4372 VOICE (619) 594-6394
The Gordon Gastil Endowed Scholarship Fund continues to seek donations of any amount.
Gifts of $ 500.00 or more will be recognized on a plaque to be placed in the remodeled Geology Building.
Donations can be sent through SDAG, or contact Pia or Marie, Department of Geological Sciences, SDSU, at (619) 594-5586.
SDSU-AAPG student chapter officers intention is to support student interest in petroleum and geology related fields.
Association of Environmental and Engineering Geologists
AEG Inland Empire Chapter
The SCGS usually meets on the first Monday of every month, in Orange County. For more SCGS information, visit their website at:
http://www.southcoastgeo.org.
Our website manager, Carolyn Glockhoff, can create a link from any Corporate Sponsor's listing on the SDAG website to its company website, if one exists.
Also, please send the URLs of your favorite geology sites to carolyn@caro-lion.com for listing on the Geologic Links page.
These could be data resources, schools, useful government contacts, geologic software, contractors, laboratories, your own company's website, or anything you think would be useful to your colleagues.
DO YOU HAVE AN ANNOUNCEMENT?? Do you have an event, job opening, field trip or other announcement you would like to share with our members??
Just call or email 2023 SDAG Secretary.
Any news regarding upcoming events that may be of interest to the Association or news of your business can be submitted.
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