Friday, June 13, 2008

Photos of Chacchoben are up!


19 Temple 2
Originally uploaded by kactuswren
I have finally uploaded photographs of my visit to Chacchoben to my Flickr account.

Chacchoben is a Mayan ceremonial center in the Yucatan about which very little is known. Only one scholarly work has been published, and it is written in Spanish (I've requested it through inter-library loan, and I'm gonna try to decipher it!).

Visitors are allowed to see the large Temple (Temple 24), and two others nearby which are on top of a large platform (you can see the large stairway that leads to the top of the platform in my set). There is another unexcavated group of temples a short distance away that is part of the same complex.

I'm working on a personal project to pull materials together and get a better overall picture of Chacchoben, and I'll be post it it here when I do.

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Friday, April 18, 2008

That was one busy semester

Two days ago, I turned in the term paper for Dr. Smith's grad course, Archaeology of Ancient Built Environments. I don't have an exact count, but I suspect I spent over 100 hours on the research and the writing. It's not as good as I would like it to be-- if I decide to clean it up and really finish it, I already know many of the changes I would make.

My paper, entitled "Neighborhoods in Non-urban Settlements: A Cross-cultural Comparison," used criteria originally developed to demonstrate sub-settlement groups in the Anatolian Neolithic (in Turkey) in an attempt to find neighborhoods in Native American pueblos right here in the Southwest. This will be the topic of a longer post as soon as I get the chance. I'm creating a Powerpoint slide show that may be worth posting, for those of you who are interested.

I still have another research project in the works with Dr. Martin, and I'll be finishing my data analysis very soon. More on this later.

I'm just glad I can finally get a few full nights of sleep.

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Thursday, March 20, 2008

Impressive Angkor


We've all seen photographs of Angkor Wat, the spectacular 12th century Khmer Temple in Cambodia. I was surprised to learn that Angkor Wat is just the tip of the iceberg-- that it was the center of an enormous, low-density urban complex whose size (1000 square km) rivaled large modern day cities.

Right before Spring Break, I attended a presentation by Roland Fletcher, an archaeologist from the University of Sydney who is leading up the Greater Angkor Project. This 10-year study is bringing new technologies to bear on the large questions surrounding the city of Angkor.

Using airborne side-looking radar (and other imaging from space), amazing features were revealed. From the presentation summary:
So far the project has mapped the extent of the water management system, has located key water management structures and has identified the dispersed pattern of occupation along canals and roads and on house-mounds. The demise of the urban complex now has to be reappraised because it was apparently functioning into the 16th century, later than the generally assumed sack in the early 15th century CE.
The scope of Angkor is startling. If you take a look at the feats of engineering the Khmer accomplished, one can't help but be amazed. The second photo in this post (click it for a larger view) is a satellite view of the temple of Angkor Wat, its grounds, and the large, square moat which surrounds it. You can see that the temple is dwarfed by the moat, and Dr. Fletcher tossed up a slide that showed the area inside the moat is larger than any Mayan city.

Not stopping there, you need to see the map of the entire Angkor complex (the 3rd image). The very center square on the map is Angkor Thom, the royal forest. Just below it, a tiny blue square represents the moat at Angkor Wat.

The long, rectangular blue features are man-made water reservoirs which supported the irrigation of the entire area. The West and East Baray (the two largest) are 8 kilometers in length. The NASA Earth Observatory has a large AIRSAR image of the Angkor region, plus an accompanying GIS map of all the archaeological features and sites.

What have they determined so far? It looks like the earlier theory (by Bernard-Philippe Groslier) that the large reservoirs were primarily for irrigation are correct. The radar imagery show the remnants of rice fields covering the entire region from the lake to the mountain foothills. A river was diverted to fill the reservoirs, and to irrigate the landscape. Excavations of old water channels has revealed evidence of heavy flooding (including substantial deposition of sand), which likely overwhelmed their system. It is possible that the deforestation of the area for conversion to agriculture, combined with the re-routed natural water channels, may have led to a large-scale ecological disaster.

One of the principal investigators (Damian Evans) was the lead author on a paper last year that reported on their comprehensive mapping (see below).


Additional resources:

1. Wikipedia has a nice overview of Angkor's history.

2. Evans, D., Pottier, C., Fletcher, R., Hensley, S., Tapley, I., Milne, A. and Barbetti, M. 2007. A comprehensive archaeological map of the world’s largest pre-industrial settlement complex at Angkor, Cambodia. Proceedings of the National Academy of Sciences of the United States of America. Vol. 104 no. 36, pp. 14277-14282

3. The American Museum of Natural History has a nice animated overview of the current findings at Angkor.

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Monday, February 25, 2008

Good Practice for Grad School

This has been an exciting semester so far, and an immensely busy one. I'm taking ASB 591 Archaeology of Ancient Built Environments, I'm still working on a paper with Dr. Martin, I still have quite a bit of data entry to do for Dr. Smith, and I'm sitting in on Dr. Martin's graduate seminar entitled Biology and Society.

This seems like pretty good practice for graduate school-- since I'm doing all of the reading for two seminars and working on a major research project. If I am lucky enough to get accepted into the Master's program at NAU, it can't be much worse (except for the drive).

In Dr. Smith's Built Environment class, we're reading up on how the many ways that archaeologists propose for inferring culture from architecture. We've had some really stimulating conversations (there are five us us unrolled in the class), and kicked around many things I had never considered.

We've covered new broad topics each week:
  • The Meaning of the Built Environment - reading mostly works by Amos Rapoport, who proposes that the environment can possess lower-level meaning (cues for what we are supposed to do), middle level meaning (e.g. identity, status, power), or high level meaning (e.g. world view, spiritual meaning). Intriguing urban design/social engineering controversy: Urban planner Robert Moses designed expressway systems in New York City, and supposedly designed the expressway bridges with such low clearance that public transportation (buses) could not go under them. This discriminated against the poor communities (few had automobiles) preventing them from visiting parks, baseball, etc. He is even credited by some with driving the Brooklyn Dodgers out of New York. read more at Wikipedia.
  • Settings for Activities - Dana Anderson, Susan Kent, and more Rapoport. We covered the definition of "activity" and "activity areas", discussed the types of activities (daily, subsistence, ritualistic, production, consumption), the types of activity areas (shared or dedicated), and Rapoport's concept that activities cannot be viewed alone, but as part of a larger activity system. He believes that settings are also part of larger setting systems.
  • Habitus and Home - Looking at domestic structures, Richard Blanton, Kent Lightfoot, and others looked at methods for identifying meaning. Most of these authors make it clear that to gain a full picture, one must combine data from archaeology, ethnohistory, and even oral histories.
  • Housing and Communication - House construction and design is to a large extent a consumer decision... how much to spend, etc. Blanton looks at how the decoration and design of a house communicates on multiple levels: What group the owners are in, their status in the community, etc.
  • Roland Fletcher - His model for settlement growth is pretty interesting (although I'm not sure what it can be used for if you are an archaeologist). It grows out of his belief that interpersonal interaction and limits on communication increase as settlements get larger, ultimately limiting the size of growth until the interactions are curbed or new facilitating communication technologies emerge. See The Limits of Settlement Growth.
We have 8 more weeks of topics, usually reading 6 papers per week. I need to read a related book and write a publishable review, and I also need to produce an original research paper, some kind of cross-cultural comparative study using existing data.

If I can survive this semester, I should be able to handle the real thing.

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Monday, March 12, 2007

Dig Vicariously in Mesoamerica

If you want to look over the shoulders of a team of archaeologists excavating in Mesoamerica, then you should hop over to the Blog for the 2007 field season at Calixtlahuaca.

Dr. Michael Smith from Arizona State University is leading the multi-year project, and is one of the primary contributors to the blog.

A Postclassic urban center, the site is of particular interest because it includes well-preserved public architecture and residential zones.

I particularly enjoyed reading about the likely ancient name for the city, which Smith says was populated by non-Nahuatl speakers (the language of the Aztecs).

One last note: the site of Calixtlahuaca is the source of one of the only suspected European artifacts discovered in a precolumbian New World context: the Roman Figurine. Most agree that it is not a Roman artifact, but Romeo Hristov at the University of New Mexico hasn't given up hope.

[I've also posted this item at Anthropology.net.]

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