NEXT MEETING: Wednesday, April 16, 2025, 6:00 PM at 2045 Memory Lane in Silver City, New Mexico. The GCAS's next monthly IN-PERSON ONLY meeting features speaker geoarchaeologist Dave Rachal PhD of Tierra Vieja Consulting in Las Cruces NM. Doors open at 6:00 PM with light refreshments on offer. Socializing and a brief-to-nonexistent business meeting will immediately precede Dave's presentation of: How Did The Seeds Get There? Ruppia cirrhosa Ecology, Depositional Context and Accurate Radiocarbon Dating at White Sands: "The stratigraphic and geomorphic contexts, and ultimately the chronometric determinations, at White Sands Locality-2 (WHSA-2) are topics of controversy that stem from conflicting interpretations of the processes that deposited the Ruppia cirrhosa (Ruppia) seeds within the paleo-Lake Otero footprint site....[O]ur interpretation depicts the shoreline as an unstable, dynamic lake margin to which Ruppia seeds...were transported from deep-water, offshore growth beds during storm events and deposited on the lake shore in seed balls. These unusual aggregates, known to mix seeds of wide-ranging ages, were gradually broken apart by several cycles of wave action and erosion and redeposited in layers....[W]e will delve into both the ecology and the depositional context of Ruppia and discuss why the Ruppia seeds at paleo-Lake Otero are problematic materials for radiocarbon dating." Check out Dave's and Tierra Vieja Consulting's YouTube videos (links are on our Events page) and bring your questions for him!

NEXT FIELD TRIP: TBA - watch this space and your newsletters for details as they develop.

HummerFest 2023 Is Here!
Save These Dates!

Our Next Monthly Meeting Features Allen Dart, RPA Via Zoom

Wednesday, August 16, 2023, VIA ZOOM: The GCAS will begin at 5:30PM Mountain Daylight (New Mexico) Time/4:30PM Mountain Standard (Arizona) Time with a very short business meeting. At or shortly before 5:45PM New Mexico/4:45PM Arizona time, we will welcome our Featured Speaker, archaeologist Allen Dart of Old Pueblo Archaeology Center, who will describe The Antiquity of Irrigation in the Southwest:


Before 1500 CE, Native American cultures took advantage of southern Arizona’s long growing season and tackled its challenge of limi­ted precipitation by developing the earliest and most extensive irrigation works in all of North America. Agriculture was introduced to Arizona more than 4,000 years before pre­sent, with developed irrigation systems arising at least 3,500 years ago – several centuries be­fore ancient Mexico established irrigation. This presentation will offer an overview of ancient irrigation systems in the southern Southwest and discusses its implications for understanding the social complexity of our region's ancient cultures.

A Q&A session will follow Al's talk and we'll adjourn the meeting no later than 7:00PM New Mexico/6:00 PM Arizona time. GCAS members, check your email inbox for your Zoom invitation.

Old Pueblo Archaeology Center features a small snapshot of Al's accomplishments:

Allen Dart, a Registered Professional Archaeologist, earned his B.A. and M.A. degrees in Anthropology from the University of New Mexico and the University of Arizona, respectively. From 1975 to 2019 Al was employed as a professional archaeologist with the Arizona State Museum (University of Arizona), the Museum of New Mexico, Pima Community College, the USDA Natural Resources Conservation Service, the US Bureau of Indian Affairs, private cultural resources consulting firms, and Old Pueblo Archaeology Center. He cofounded Old Pueblo in 1993 with Carolyn O’Bagy Davis and Marc Severson, was appointed full-time Executive Director when the Board of Directors was formed on January 11, 1994, and since 2008 has volunteered his time as Old Pueblo’s Executive Director for a salary of $1 per year. Al serves on the nonprofit Southwestern Mission Research Center’s Board of Directors and is a member of Old Pueblo Archaeology Center (charter member) and the Albuquerque Archaeological Society, Archaeological Conservancy, Archaeology Southwest, Arizona Archaeological and Historical Society (AAHS; life member), Arizona Archaeological Council, Arizona Archaeological Society (AAS), Arizona State Museum (charter member), Friends of Pueblo Grande Museum, Grant County (NM) Archaeological Society, New Mexico Archaeological Council, Pinal County (AZ) Historical Society (life member), Register of Professional Archaeologists, Society for American Archaeology, and Texas Archeological Society. He has served as a presenter for the Arizona Humanities AZ Speaks program since 1997 and has received the AAS Professional Archaeologist of the Year Award, the AAHS Victor R. Stoner Award, the Arizona Governor’s Archaeology Advisory Commission Award in Public Archaeology, and other honors for his efforts to bring archaeology and history to the public.

We'll see you next Wednesday!

/s/ webmaster

Comments

Feed You can follow this conversation by subscribing to the comment feed for this post.

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Working...
Your comment could not be posted. Error type:
Your comment has been posted. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.

Working...

Post a comment

Your Information

(Name and email address are required. Email address will not be displayed with the comment.)