2003 CLAS Summer Research Report

Doris Maldonado
Anthropology
"
Understanding the Ceramic Assemblage: Perspectives From The 2003 Field Season, Coa Collu, Bolivia"

This brief report is a summary of the activities of Doris Maldonado, partially funded by the Center for Latin American studies in the summer of 2003.  The first month I spent in the tropical region of Lake Yojoa, Honduras, as part of an archaeological field school under the direction of Professors Rosemary Joyce (Berkeley) and John Henderson (Cornell) at the site of Los Naranjos.  After this brief field experience, I switched continents and prepared for my next journey to South America.  After arriving in San Francisco with only one day to spare, unpacking clothing for the warm Honduran project, I had to switch gears and prepare for the high elevations of the Bolivian altiplano and a significant drop in temperature. My purpose for traveling to Bolivia was to join an on-going research project in the Lake Titicaca Basin by the Taraco Archaeological Project, which has been conducting archaeological work in this region since 1992. The field season excavations were undertaken at the site of Coa Collu, west of the well known site of Chiripa on the Taraco Peninsula (that CLAS has been providing travel grants to various students at Berkley for the last six years).  Work at Coa Collu is part of a multi-year project at multiple communities on the Taraco Peninsula to assess polity formation on the Peninsula and is a link between previous work by TAP and other researchers around the Titicaca Basin.

The primary goals of the Taraco Archaeological Project, directed by Dr. Christine Hastorf and Dr. Matt Bandy, are to discern the ways in which decentralized societies have negotiated social and economic change, how people concede/participate/adapt to higher-levels of authority and power structures, and how the region developed into a regional polity (Hastorf and Bandy 2002). Excavations at the site of Chiripa for the past four field seasons have yielded information about the political complexity of this Formative Period (1500-100 B.C.) society.  Our research along the Taraco Peninsula will help address the questions and goals of the Formative to Tiwanaku transition and will continue work on the environment and ceramic style changes that link this area to the Tiwanaku valley and sites to the north and west. The focus of this field season's excavation was in the town of Coa Collu, an Aymara community due west of Chiripa and approximately 3 hours from the Bolivian capital, La Paz.  Future work will include two other sites (also including the site of Chiripa) along the Taraco Peninsula to address the questions of polity formation as it pertains to the Tiwanaku state, considered to be the longest-lived state center in the Andean highlands (Hastorf and Bandy 2002). This research looks at both inter and intra-site relationships as they relate to social, political and economic motives that drive acephalous societies to organize into multi-community polities and which in this region coalesced with Tiwanaku state formation between 300-500 A.D.

While my primary work for TAP was to assist the principle ceramic analyst, Dr. Lee Steadman with the ceramic analysis of the Kala Uyuni site ceramics, a large portion of this experience at Coa Collu pertains to TAP's relationship with the community and the perspective of the community on our work there. It is this aspect that made my work at Coa Collu an amazing learning experience, both professionally and personally. To address one without the other would result in an incomplete narrative.

The Ceramics

            Due to our recent return from the field, analysis from this year's field season is on-going. The ceramic analysis for Chiripa and that of Coa Collu, along with future work in the Taraco Peninsula will allow us to make conclusions about regional differences in  ceramics and their exchange, regionally.   This work forms one facet of several methods of investigation, which together with botanical, zooarchaeological, lithic, and soil studies,  will inform us about the inter and intra site relations at a regional level that will address the broader goals of TAP, as outlined above. Although ceramic analysis for this field season is still in process, work on the ceramic assemblage of Chiripa by Dr. Steadman has contributed to our understanding of the Formative period in the Taraco Peninsula. By implementing the use of attribute analysis, involving the observation and recording of individual ceramic attributes such as paste, color, finish, and shape (Steadman 1999), Steadman has defined three ceramic Chiripa phases (Early, Middle, and Late Chiripa). This analytical methodology provides a better way of studying changes through time (Steadman 1999), by looking at the differences in ceramic attributes, rather than focusing on their similarities. An important factor of ceramic analysis is the development of chronological sequences that assist in placing the artifacts in both space and time. This ability is particularly important, due to the project's goals in so far as observing links between sites and the changes that occurred in the Taraco Peninsula, where individual communities become part of multi-community polities. We can observe these changes by looking at how ceramic composition and style change through time, as well as through attribute similarities between sites.   The analysis can address levels of interaction in trade, exchange and distribution of material objects and most importantly, ideology, a common and socially persuasive link, bringing together ideologies under a shared social system.

            A portion of this summer's ceramic analysis also consisted of looking at some of the ceramics from excavations at the site of Chiripa. Chiripa phase ceramics are distinct in both composition and style from later periods in sites along the Taraco Peninsula. Distinguishing attributes can be observed in the composition or paste, which is predominantly fiber tempered in Early, Middle and Late Chiripa assemblages. Mica inclusions account for the two most predominate pastes used in the Early Chiripa phase. Surface decoration and finish, as well as shape are other significant attributes in ceramic analysis.   A high percentage of the ceramics of the Early Chiripa phase are un-slipped and in the following colors: black, gray, or dark brown. A lower proportion are slipped in red, red brown and brown.  The most common vessel shape is that of a short neck-olla, but many other vessel types such as low sided serving vessels have been found.

During the Middle Chiripa phase, pastes are characterized with translucent inclusions which vary in size. Burnishing, which is found in the Early Chiripa phase, is also present in the assemblage of this period in the same percentage, but with a higher degree of luster and at times on both sides (interior and exterior) of the vessel. The use of slips during this period increases to comprise three quarters of the Chiripa ceramic assemblage for this period. The most common vessel shape is that of the medium-necked olla. Late Chiripa ceramics are characterized by a paste consisting of large chunky quartz inclusions and burnishing.  The use of slips also increases during this phase, again the most common vessel shape pertains to the medium-necked olla. This brief summary of the Chiripa ceramic assemblage contains only those most salient aspects that characterize each phase. A more detailed discussion of the attributes of the Chiripa assemblage can be found in Early Settlement at Chiripa, Bolivia: The Ceramics (ed. Hastorf 1999). Surface treatment and the beautiful intensity of the slipped colors used in this period as well as designs, set this period apart stylistically from later periods in the region.  Examples of these ceramics can be found at Coa Collu, which along with Late Chiripa ceramics also consisted of Tiwanaku 1 ceramics.

            Expectations for this seasons excavations, as they apply to the ceramic assemblage, based on the surface survey and collection of ceramics (Bandy 2001) correlate temporally with Late Chiripa and Tiwanaku 1 ceramics. However, excavations also revealed Middle Chiripa ceramics which may provide evidence for earlier regional interaction in the Taraco Peninsula. Various excavation units at Kala Uyuni revealed ceramics from a ceremonial context. A semi-subterranean sunken temple was revealed  on top of a local hill.  The temple contained a 2 meter tall monolith in association with ceremonial artifacts dating to Middle and Late Chiripa ceramic contexts. Separate excavation units at the base of the hill revealed ceramic assemblages dating to the Tiwanaku 1 period. Although analysis is ongoing, our understanding of the Taraco Peninsula polity and its relation to Tiwanaku state formation is taking shape based upon our findings this field season and those seasons at Chiripa.  Future work on sites along the Taraco Peninsula will enhance our understanding of the Chiripa phases from 1500 B.C. to 300-500 A.D., and the transition to the Tiwanaku.

The Processing of Ceramics

            This brief description describes the practical procedures of ceramic analysis by the Taraco Archaeological Project. After the completion of each work day excavation teams provided laboratory workers with bags of artifacts containing bones, lithics and ceramics with information about their archaeological provenience. These materials were then soaked overnight in water to prepare for the following days washing. Washing of artifacts brought back from the field entailed specific procedures that lab workers and local Aymara women did together everyday so that these artifacts could be both catalogued and analyzed by lab workers and data recorded for analysis. Every one of these aspects is extremely important from washing to recording ceramic attributes. The washing of ceramics was performed by local Aymara women. Each sherd from a given bag and locus was washed and allowed to dry and later catalogued and analyzed. The cataloguing of ceramic bags was performed by Virgilio Choque and this work provided us with a basic inventory of ceramics for the site. Virgilio, counted, weighed and recorded the number of body sherds, small ceramic fragments, tierra tiznada and diagnostic sherds (a sherd which tells us about vessel shape, for example a rim sherd or a decorated sherd) and these ceramics were later analyzed using the attribute analysis described above. Data pertaining to the attribute analysis conducted in the field is currently in progress.

The Community of Coa Collu

            Working in the community of Coa Collu this summer presented a number of challenges, but none that could not be overcome due to the warmth and acceptance of TAP.  Members of this community worked closely with us on this archaeological project, making this a shared experience and a unique one for me. Thinking back to my time at Coa Collu, there are a number of things that I remember fondly, at the moment two stand out. The first is a conversation with a local Aymara man who was an excavation maestro in this project. The conversation provides an insight on the perception of our work at Coa Collu by community members. We were discussing the relevance of this project to Bolivian archaeology and how happy I was to be living and working in this community and Facundo said that he was equally happy because this project more than providing employment to local community members, provided their children with knowledge about their past that they could pass on to their children, and this was above anything the most important aspect of our presence there, at least for Facundo.

            Finally, on Aug. 5th and 6th this summer, the community of Coa Collo along with other communities along the Taraco Peninsula invited us to celebrate with them the annual fiestas de Independencia. It was a wonderful experience that I will never forget and hope to participate in on my next visit to Bolivia.

Late Chiripa Ceramics - Paste 21 - Common Ware

Tiwanaku I - Incised Polycrome - Extremely Rare

Doņa Alejandra Condori - Maestra de Ceramica

Acknowledgements

To the Center for Latin American Studies for the opportunity to travel to Bolivia and to TAP for the experience. Lastly, to the community of Coa Collo for allowing us to live and work among them and to learn from each other.

Thank you to Alicia, Elsa, Facundo, Franz, Virgilio, Primitivo and all the members of the community of Coa Collo and to Doņa Alejandra Condori. Thank you TAP.

Bibliography

Hastorf, Christine A.

1999    Early Settlement at Chiripa, Bolivia: Research of the Taraco Archaeological

            Project. ARF Contribution No. 57, Berkeley, 1999.

Hastorf, Christine A. and Matthew Bandy

2002    Decentralized Societies and Multi-Community Polity Formation, grant proposal to the National Science Foundation.

Steadman, Lee

2002    Report to the Center for Latin American Studies on the Faculty Research Grant,

            "Bolivian Ceramic Analysis", awarded to Dr. Christine Hastorf, Department of Anthropology, Spring 2002.


Abstract

The Taraco Archaeological Project, under the direction of Dr. Christine Hastorf and Dr. Matthew Bandy, has been conducting archaeological work in the Lake Titicaca Basin region since 1992. This field season excavations were undertaken at the site of Coa Collu, west of the well known site of Chiripa on the Taraco Peninsula.  Work at Coa Collu is part of a multi-year project at multiple communities on the Taraco Peninsula to assess polity formation on the Peninsula and is a link between previous work by TAP and other researchers around the Titicaca Basin. The primary goals of the Taraco Archaeological Project, are to discern the ways in which decentralized societies have negotiated social and economic change, how people concede/participate/adapt to higher-levels of authority  and power structures, and how the region developed into a regional polity (Hastorf and Bandy 2002). Excavations at the site of Chiripa for the past four field seasons has yielded information about the political complexity of this Formative Period (1500-100 B.C.) society.  Our research along the Taraco Peninsula will help address the questions and goals of the Formative to Tiwanaku transition and continue work on the environment and ceramic style changes that link this area to the Tiwanaku valley and sites to the north and west.

 


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