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: Sunday, April 6, through Tuesday, April 8, 2025: Lyman Lake State Park/Springerville/Casa Malpais AZ. Sunday-Monday, explore Lyman Lake's petroglyphs & archaeological site on your own or with a group. On Tuesday 4/8, we have guided tour of Casa Malpais archaeological site. Reservations are required for ONLY the guided tour to the Casa Malpais site but we must give them a final tally no later than March 23, 2025, so please let trip co-leader Torie Grass ([email protected]) or Eduardo Argüello ([email protected]) know to put you on the list. More details available in newsletter and on Events page of this website, and in the blog posts below. As usual for any GCAS field trip, wear sturdy shoes and pack sun protection & water. See you there!

Science

Repost: Archaeological Society of New Mexico's Annual Meeting Is Next Month

Plan now for the Archaeological Society of New Mexico (ASNM)'s annual meeting at the Ruidoso Convention Center from Friday, May 5 through Sunday, May 7, 2023. The Jornada Research Institute, one of ASNM's affiliate organizations, is planning and organizing this year's meeting. Tentative theme is “By Leaps and Bounds: Recent Advances in Archaeological Inquiry across Southeastern New Mexico,” which explores a number of contributing discoveries that have expanded archaeological interpretations across this vast region of the State.

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Archaeological Society of New Mexico's Annual Meeting Comes in May

3riosFriday through Sunday, May 5 through 7, 2023: The Archaeological Society of New Mexico (ASNM)'s annual meeting is scheduled for the Ruidoso Convention Center. ASNM affiliate organization, planned and organized this year by the Jornada Research Institute. Tentative theme for this meeting is “By Leaps and Bounds: Recent Advances in Archaeological Inquiry across Southeastern New Mexico,” which explores a number of contributing discoveries that have expanded archaeological interpretations across this vast region of the State. The 2023 meeting launches on the afternoon of May 5 with ASNM's board meeting, a rock art meeting, and certification meeting followed by a “meet and greet” cash bar, buffet dinner, and presentation on The Archaeology of Tularosa Canyon. The day of May 6 will consist of the presentation of papers by various speakers, an evening social hour, dinner, and awards. Myles Miller will present the evening's Bandelier Lecture, summarizing the advances that have been made and interpretations generated through archaeological survey, excavations, rock art studies, ethnohistory, and archaeoastronomy; and describing the increasingly greater precision of various remote sensing techniques, artifact analyses, and chronometric dates. Expect a variety of tours (still TBD) to local sites on May 7.

Save the dates and watch JRI's announcement page for registration information and updates as they develop. We'll see you there!

/s/ webmaster


Humans and Their Dog Companions

GoggieNews in DNA research does not have to directly relate to our Mimbres-Mogollon region to be featured on this here blog. Click here to read a recent article of some fascinating DNA research into how - and how far back in time - dogs became domesticated and migrated hither and yon with their human companions. Some of the researchers' conclusions surprised even them. And there are sure to be more surprises to come.

What did we humans ever do to deserve dogs?

/s/ webmaster


Human Migration Patterns, DNA, and Vikings

Human genomeReaders of this here blog know that our basic policy is to focus upon archaeological developments in our own region because there's certainly plenty of it. However, readers also know that our policy includes an exception whenever news of advancements in DNA research is involved. Behold:

A 10-year DNA study of human remains from Viking-Age burials across Europe and beyond (generally, 750 CE - 1050 CE) is leading anthropologists, archaeologists, and historians to redefine who Vikings were. The DNA results revealed many cases of individual and group mobility, such as four brothers buried together in one Viking grave in Estonia, and a pair of cousins buried hundreds of miles apart from each other - one in Oxford, UK, and the other in Denmark. Additionally, the DNA results revealed that Vikings from certain areas preferred specific destinations for raiding and trading - refuting the traditional assumption that Vikings conducted their sailing expeditions wherever the winds of fortune carried them.

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Obsidian and Human Travel Patterns

Obsidian core  flakesObsidian was valued by ancient cultures for its sharpness and durability. Archaeologists commonly find obsidian nodules or worked obsidian in the form of points, knife blades, etc., in archaeological sites throughout the Western Hemisphere and beyond. Because of the particular way obsidian is formed, each source of obsidian has a unique geochemical signature. Thus researchers can identify where the obsidian that was used to make a particular artifact originally came from. The source provides clues about how the humans who made the artifacts interacted with other groups, either via trade or migration. In our own region, artifacts and raw material originating from the obsidian deposits at Mule Creek, New Mexico, have been found at archaeological sites up to 120 miles away.

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Online Via Zoom: Our May 19, 2021, Featured Speaker, John Stocke, PhD

Our monthly GCAS general meeting happens on Zoom on Wednesday, May 19, 2021, 7 PM: Stocke_john As is our Zoom custom, our brief-if-any business meeting will be immediately followed by our Featured Speaker, John Stocke, Colorado University-Boulder professor of Astrophysical & Planetary Sciences (1985-2017), who returns to discuss Ethnic Astronomy with us. If you recall any of his past presentations such as the significance of The Pleiades, or aspects of Polynesian celestial navigation, you know to join us online at 6:45 to get situated before Dr. Stocke begins at 7:00 PM sharp. A Q&A session will follow the talk. Check your email inbox for your Zoom invitation about one week before the presentation, and learn more about Dr. Stocke's ongoing projects here.

/s/ webmaster


Meet D-Stretch: the Archaeologist's Friend

Picto 3 - natural Picto 3 - StretchSome avocational archaeologists have already learned of the fascinating technology of D-Stretch, aka decorrelation stretch, a digital imaging tool that was originally developed to enhance (i.e., "stretch") the color differences in aerial photographs. Today, this technology has become more widely used and user-friendly to boot. It is now an essential tool to analyze rock art images, especially ones too faint for the naked eye to see.

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New Studies in Archaeoacoustics

StonehengeRegular readers of this here site know that we generally prefer focusing our news on what's happening archaeologically in our own Southwest US/Northern Mexico region. However, we remain open-minded enough to occasionally publish news from further afield, especially when it contains implications for our own area. In this case, the article's headline is fully descriptive:

"A Remarkable New Study Suggests That Stonehenge Was Built to Amplify Sound During Ancient Ruling-Class Rituals - The stones also worked as a sound chamber, keeping outside noise out."

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How DNA Research Affects Study of Past Cultural Events

Certain advances in DNA research have recently hit the mainstream press. Bonus: the scientists include one who is a familiar friend to many of us in the GCAS. Please enjoy the following excerpts. [Spoiler alert: if you want to surprise yourself about the identity of our mystery scientist, read the whole article linked above but do not read below the fold here]:

"The Reich lab, the foremost unit in the country for research into ancient DNA, is responsible for more than half the world’s published data in the field. Having so far sequenced the DNA of more than ten thousand long-dead individuals from all over the globe, the lab is almost halfway through a five-year project to create an atlas of human migration and diversity, allowing us to peer deep into our past. The work has produced startling insights into who we are as a species, where we have come from, and what we have done to one another. Hidden in the human genome is evidence of inequality, the displacement of peoples, invasion, mass rape, and large-scale killing....“This is an example of the power of ancient DNA to reveal cultural events,” Reich [said]...It also shows how DNA evidence can upset established archeological theories and bring rejected ones back into contention....

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Cultural and Ethical Implications in the Fossil Trade

Amber-field-cnnLoss of important scientific data does not just happen with cultural artifacts like Mimbres pottery. It happens with fossils, too. GCAS member Kathryn McCarroll links to an article discussing the international trade in blood amber, a fossil-rich amber mined only in Myanmar. Paleobiologist George Poinar recently wrote that "...scientifically valuable fossils...end up in carvings and jewelry and [are] lost for future generations...."

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