Showing posts with label ochre. Show all posts
Showing posts with label ochre. Show all posts

Monday, January 18, 2010

Early modern human parietal art at Fumane Cave

ResearchBlogging.org The last three issues of the 2009 volume of L'Anthropologie are dedicated to prehistoric art, and one the papers contained in that special volume concerns five vault fragments from Fumane Cave (Veneto region, Italy) that were recovered during excavation and that bear designs made in red ochre. The art itself is already well known and has been published in great detail as part of a monograph a few years ago (Broglio and Dalmieri 2005), but this study presents some new data on the likely age of the fragments, as well as on the composition of the pigments from which they're made.

View of the inside of Fumane Cave.
http://www.grottadifumane.it/FOTOGALLERY-DELLA-GROTTA.html

The issue with these fragment has been to precisely determine how old they are, since they are in secondary position, that is to say, they were not found where they were painted. It seems that during a cold snap following the moment on which the designs were painted on the cave, the vault surface spalled off and the fragments fell on deposits that were, logically, more recent than the paintings themselves. The oldest fragment (Fragment I in the figure below) bears a representation of some kind of quadruped was recovered in Unit A2, which is the base of the Aurignacian deposits at the site, whereas Fragment II ("the shaman", so called because the anthropomorphic figure it bears also shows some horn-like features) was recovered from the a pile mound of stones located at the cave's mouth, while the other decorated blocks were recovered in later (i.e., more recent) Aurignacian and Gravettian layers. In Italy, the Gravettian is securely attributed to modern humans, who are also widely thought to be the makers of the Aurignacian, and its earliest expression, the Protoaurignacian.


The five decorated vault fragments from Grotta di Fumane.
From: Broglio et al. (2009:756, Plate 2).

The main issue, chronologically speaking, has been to determine when the figures were painted on the cave vault, since the layers in which they were recovered only provide a terminus ante quem for their age, in other words, an upper limit for their age. So, at first glance, there is no evidence for the age of these paintings beyond that of the layers in which they were recovered. However, in this study, Broglio et al. (2009) make the case that all the paintings date to the earliest Aurignacian at the site, that is to level A2. Historically, the dating of the earliest Aurignacian at Fumane has been hotly debated, but the authors present new dates for previously dated charcoal samples that have undergone, for the new dates, a new, more thorough pretreatment (i.e., ABOx SC). This has provided two statistically equivalent age determinations of 35,640 +/- 220 and 35,180 +/- 220 BP for level A2. Interestingly, and fittingly in light of my recent post on the presentation of calibrated and uncalibrated radiocarbon dates, they conclude that, by reference to the calibration curve based on the Cariaco Basin data and the GISP2 Greenland ice core, that "the chronological data show that Protoaurignacian Unit A2 dates to between 43,250 to 40,500 BPGISP2, with an age of 41,000BPGISP2 being statistically more likely" (Broglio et al. 2009:760; my translation, emphasis added).

What allows them to tie the paintings to that age determination is the study of ochre found in Unit A2. The base and top of that layer include conspicuous concentrations of red ochre, and some ochre crayons were also recovered from A2. The clincher is that these crayons are made of the same ochre as that which was used for the parietal art. This is demonstrated by a brief compositional analysis of the pigments using various methods, that also indicates that these ochres are circum-local in provenience, being found in the Lessini Mountains, at the southern edge of which Fumane sits.

In sum, while the decorated pieces themselves were not dated directly, this study provides some strong circumstancial evidence for their being of early Aurignacian age. If this attribution is correct, it provides us with some solid data about some of the iconographic canons and artistic techniques used by early Aurignacian foragers in northern Italy and some insights into the variability in artistic behavior within this cultural tradition at the beginning of the Upper Paleolithic.

update (01/18/2009: 12:20PM): Image of the paintings is now fixed.

References

Broglio, A., and G. Dalmieri (eds.). 2005. Pitture paleolitiche nelle Prealpi venete: Grotta di Fumane e Riparo Dalmieri. Memorie del Museo Civico di Storia Naturale di Verona, 2 serie. Sezione Scienze dell'Uomo. Verona, Italy.

Broglio, A., De Stefani, M., Gurioli, F., Pallecchi, P., Giachi, G., Higham, T., & Brock, F. (2009). L’art aurignacien dans la décoration de la Grotte de Fumane L'Anthropologie, 113 (5), 753-761 DOI: 10.1016/j.anthro.2009.09.016

Friday, January 25, 2008

Neanderthals, Now in Color!

Debates over the symbolic behavior of Neanderthals have always been hampered by the unreliability of much of the evidence invoked in support of it. That is to say two things: 1) there are not very many artifacts that are suggestive of symbolic behavior; and 2) those that do exist are often plagued by ambiguity as to whether they are the result of purposeful Neanderthal action or the result of non-human factors.

Over the past few years, pigment use has been claimed to differentiate the symbolic capacity of Homo sapiens from those of Neanderthals, and as one of the defining elements of ‘modern behavior.’ This is partly why the discovery of pigment use – presumably by early Homo sapiens – dating back to 167 kya in South Africa was such big news this past fall (Marean et al. 2007). The basic idea here is that the purposeful collecting and shaping of blocks of coloring material is indicative of behavior in which colors were used to transmit socially-mediated information.

There is some convincing evidence that Neanderthals demonstrated symbolic behavior, especially in the latter moments of their evolutionary history (e.g., d’Errico 2003, d’Errico et al. 2003), but so far there has been little in the way of published work about their use of pigments prior to the Châtelperronian. A paper by Marie Soressi and Francesco d’Errico (2007 – available as a freely accessible pdf), however, presents very convincing evidence for that behavior at least by 60 kya (see also d’Errico and Soressi 2006). That study reviews the evidence for Neanderthal symbolic behavior as a whole, but it contains one section specifically dedicated to the question of identifying pigment use in European Middle Paleolithic assemblages, at least 70 of which have yielded blocks of coloring materials (mainly black-colored manganese dioxide) and/or tools involved in the processing of pigments such as grindstones and mortars (Soressi and d’Errico 2007:303).

The reason why this ongoing study is so convincing is that the authors used replicative referents that objectively establish the microscopic and rugosimetric features of blocks of coloring materials worked in different manners and with different tools. This provides an objective baseline against which to compare the characteristics of objects found in assemblages attributed to Neanderthals and to determine whether they bear evidence of having been purposefully manufactured by human action.

In the case of the specific study conducted by the authors – on the French Mousterian sites of Pech de l’Azé I and Pech de l’Azé IV, located about 80 meters apart – they created a series of experimental referents obtained through 13 kinds of modifications/uses, including scraping for powder with a flint object, abrading against various kinds of stone, coloring leather, and drawing body paintings (Soressi and d’Errico 2007:304). The preliminary results of their analysis show that 250+ blocks from Pech I and 20+ blocks from Pech IV appear to have been modified by Neanderthals:

“… of the Pech de l’Azé I blocks, over half were abraded on sandstone before being used on soft materials such as dried skin, or human skin. Neanderthals seem to have abraded the pigments on sandstone slabs that were also recovered during excavation so as to create elongated facets with strong coloring properties that could be used in the manner of a charcoal pencil to mark various materials, including human skin in the case of body painting. The blocks from Pech IV appear to have been used in largely similar manners. However, some pieces bear grooves resulting from scraping their surface with flakes or retouched tools. This indicates that, beyond using [manganese dioxide] in pencil form, Neanderthals also manufactured coloring powder used either as is, or more likely mixed to some binding agent. (Soressi and d’Errico 2007:306; my translation)

Since environmental condition and local manganese abundance appear to be comparable for the two sites, the authors interpret the disparity in the number of manganese pieces between Pech I and IV as resulting from contextual factors, suggesting that coloring was not equally important in all contexts or site-occupation modalities. Also, I especially like this section about what the use of coloring material might mean in terms of Neanderthal symbolic capacity:

“It would be hard to confirm a purely functional use [of coloring materials]; in fact, such a use would be nearly impossible to demonstrate if we consider the omnipresent nature of symbols in human societies. If the model provided by known foragers is extended to Neanderthals, the systematic use of pigments in a strong argument in favor of their capacity to develop symbolic cultural practices.” (Soressi and d’Errico 2007:306; my translation)

References:

d’Errico, F . 2003. The invisible frontier: A multiple-species model for the origin of behavioral modernity. Evolutionary Anthropology 12:188–202.

d’Errico, F., C. Henshilwood, G. Lawson, M. Vanhaeren, A.-M. Tillier, M. Soressi, F . Bresson, B. Maureille, A. Nowell, J. Lakarra, L. Backwell, and M. Julien. 2003. Archaeological evidence for the emergence of language, symbolism, and music: an alternative multidisciplinary perspective. Journal of World Prehistory 17:1–70.

d’Errico F., and M. Soressi, 2006 Des hommes en couleurs. Les Dossiers de la Recherche 24: 84-87.

Marean, C. W., M. Bar-Matthews, J. Bernatchez, E. Fisher, P. Goldberg, A. I. R. Herries, Z. Jacobs, A. Jerardino, P. Karkanas, T. Minichillo, P. J. Nilssen, E. Thompson, I. Watts, and H. M. Williams. 2007. Early human use of marine resources and pigment in South Africa during the Middle Pleistocene. Nature 449:905-908.

Soressi, M., and F. d’Errico. 2007. Pigments, gravures, parures: Les comportements symboliques controversées des Néandertaliens. In Les Néandertaliens. Biologie et cultures (B. Vandermeersch and B. Maureille, eds.), pp. 297-309. Editions du CTHS, Paris.

Tuesday, October 30, 2007

Asking a "lady" her age

The 'Red Lady of Paviland' is a Gravettian burial originally found in 1823 Goat's Hole Cave at Paviland (UK), and which was recently returned to the National Museum of Wales from Oxford University where it had been kept since its discovery. The body is actually that of a young male and was found covered in red ochre as well as "with a number of artefacts including ivory wands, bracelets and periwinkle shells."

It was originally thought to date to about 18 kya, before more recent assays established it was 25-26 kya. Well, it turns out that Tom Higham and his team have determined it is, in fact, some 4000 years older, or "just over 29 kya".

Beyond the general 'older is better' paleoanthropological cachet of this new report, there are some interesting implications drawn from this new age:

"It would mean The Red Lady lived in an age when the climate was much warmer than it would have been 4,000 years later.

Dr Higham added: "The data that we have got now is making a lot more sense."

He said it was important for "our understanding of the presence and behaviour of humans in this part of the world at this time".

He also said it "might" suggest that the custom of burying people with artefacts originated in western Europe rather than eastern Europe as had previously been thought.

"This raises new questions about the way in which these people spread and lived on the continent," he added."


I don't know what else they're basing the claim for a Western European origin of burials, but a single burial is not much to go on for such an interpretation. I'm sure there'll be more about this in the write-up of the analysis, which should be published in the Journal of Human Evolution early in 2008 (the corrected proof wasn't available when I checked today).

An artist's rendition of the burial ceremony in the Gravettian
( http://museums.ncl.ac.uk/flint/archrit.html).

Monday, October 29, 2007

The size of one's package...

I’ve been struggling to find time to string together my first set of thoughts about the Marean et al. (2007) paper that came out about 10 days ago, and this since even before CNN was harping on about “Stone Age clambakes” (such a lame spin). So I figured I'd better do it now, while they were still fresh-ish…

A few things, as a preamble. First, if you want a “public” rendering of the study, you’re much better off checking out the official ASU press release than any of the media coverage that was heaped on the piece. Second, for a tongue-in-cheek spin on what the findings reported by Marean et al. (2007) might mean, check out this post on Hot Cup of Joe. Third, in the interest of full disclosure, Marean was one of my PhD committee members and I consider a number of the paper’s coauthors pretty good friends.

Moving on to the paper itself, the chrono-stratigraphy of the study seems beyond reproach to me. In other words, there’s no question we’re dealing here with an MSA coastal occupation beginning at least ca. 167 kya. Also, the GIS modeling of the paleo-shoreline (available as a [very large – 64 megs!] supplementary video) is very enlightening and the authors put it to very good use in inferring the most likely time of occupation of the site during the LC-MSA. As far as I know, it’s the first time this kind of video information is presented alongside a paleoanthropology piece in Nature, and I hope this is a trend that will stick for archaeological contributions, insofar as they are useful, of course.

By and large, what most strikes me about the paper is the discussion of a “behavioral package” that comprises coastal living, shellfish exploitation, ochre use and bladelet production. These elements are unquestionably all there at PP13B, but their varying representation across the LC-MSA stratigraphy strongly suggests that they were far from indissociable in evolutionary time, and this even at a single locale. Interestingly, this very fact emphasizes how dynamic the MSA appears to have been as a form of behavioral adaptation, even in its comparatively early phases. This contrasts with some views of the MSA as a single ‘thing’ across space and time. That said, it also raises the issue of whether we are, in fact dealing with a discrete “package” and of what elements are its essential features, for lack of a better term. I think that we still have some way to go in highlighting what the advantages provided by each of these different behaviors was, especially in different situational contexts, but it is very intriguing to first find them in association when the coast first appears to become more or less permanently occupied.

This discussion about a modern “behavioral package” (which is what they’re getting at, really), I feel, is the cornerstone of this piece. It also strikes at the beating heart of a long-standing and still unresolved question in paleoanthropology, namely what makes modern humans, well, “modern” in behavioral terms and what of these elements are the fundamental ones. The data put forth by Marean et al. suggest that the expansion of the diet breadth might be key, although it's clearly not sufficient on its own (hence the "package"). Regardless, this paper is important in fleshing out our understanding of the MSA in an otherwise poorly-known segment of its chronology and in reiterating how internally variable this industry can be.

As I implied at the beginning of this post, I mainly to get out what thoughts I’ve had time to formulate about this paper before it had been too long. I just might return with some more a little while later.

Reference:

Marean, C. W., M. Bar-Matthews, J. Bernatchez, E. Fisher, P. Goldberg, A. I. R. Herries, Z. Jacobs, A. Jerardino, P. Karkanas, T.Minichillo, P. J. Nilssen, E. Thompson, I. Watts, and H. M. Williams. 2007. Early human use of marine resources and pigment in South Africa during the Middle Pleistocene. Nature 449:905-908.