[Bonetools] identification of raw material
marinaevora at sapo.pt
marinaevora at sapo.pt
Wed Jul 16 19:33:32 CEST 2014
Caro François,
Hoje tive oportunidade de voltar a ver o artefacto sob o microscópio.
Ele mede 6mm comprimento X 3mm de espessura e o orifício central mede 2mm
de largura. A superfície exterior não tem marcas de estrias de
manufactura, ela não é totalmente lisa, apresenta linhas longitudinais,
paralelas ao eixo longo do artefacto e estas linhas têm algumas pequenas
depressões, espaçadas entre si. Não se notam marcas de serragem ou corte
nos bordos laterais.
No corte / secção, vêem-se linhas que são longitudinais e estendem-se
por toda a superfície até ao orifício, estas linhas presentes no corte
/secção são naturais, não resultam de manufactura e têm alguns vestígios
de concrecções calcárias (o que é normal também nos restos de fauna
recuperados daqui). Não há uma diferenciação entre tecido cortical e
tecido esponjoso, como nos outros ossos de mamíferos, o tecido é o mesmo
desde a superfície exterior até ao orifício central, não existem
/osteons/, é um conjunto único de linhas que parecem fibras e todas com a
mesma direcção.
O orifício central não tem marcas de perfuração nos bordos, e estes não
são totalmente regulares porque as linhas / fibras que falei antes
terminam aqui. A olho nú o orifício parece perfeito, mas ao microscópio é
ligeiramente irregular. A unha não deixa marca visível na superfície, e ao
cair na mesa o som que o artefacto faz é como um "clic".
Obrigada pela ajuda
Cumprimentos,
Marina
Quoting François Poplin <poplin at mnhn.fr>:
> J'ai très peu de temps ce matin.
>
> Je voudrais repartir de l'expérience que j'ai de l'espadon :
>
>
> 27 POPLIN F., 1975 - Restes de rostre d'Espadon trouvés dans un
> gisement néolithique de l'étang de Leucate (Aude). /Bull. Soc.
> Préhist. Fr/., 72, /C.R.S.M./, n° 3, 69-70, 1 fig.
>
>
> Je demande qu'on me ressorte des pièces. A bientôt.
>
> Marina Evora, écrivez-moi en portugais, ce sera mieux.
>
> Expliquez-moi bien comment est fait le trou : est-il foré par
> l'homme (is it drilled), ou bien est-ce un conduit naturel, avec une
> paroi propre, comme il semble (mais sur une très petite surface) sur
> vos photos ?
> J'ai le souvenir - très mauvais souvenir - de photographies
> d'une diaphyse présentant des trous ronds, avec un commentaire qui
> parlait de forage ("drilled"), et qui était un commentaire tromper.
> Les trous étaient creusés par des larves.
>
> I do like to help, but please, help me to help you.
>
>
> Le 09/07/2014 22:12, Sonia O'Connor a écrit :
>>
>> Dear Amy,
>>
>>
>>
>> There is not much compact tissue like this in a whale except in the
>> rib or the jaw of toothed cetacean, such as sperm whale. The
>> object is small and entirely worked so to determine the species it
>> would be necessary to undertake proteomics or DNA studies. These
>> are secondary osteon structures. They develop in mammal bone as it
>> matures, overwriting the original fibrolamellar structure of the
>> bone to a greater or lesser extent. In whale they completely
>> obliterate the original lamellar structure of the bone and there is
>> no interstitial bone between them.
>>
>>
>>
>> The picture attached is a side view of the same object. Sorry I do
>> not have such a close-up view of it but each division on the scale
>> is a millimetre.
>>
>>
>>
>> All the best,
>>
>>
>>
>> Sonia
>>
>>
>>
>>
>>
>>
>> Dr Sonia O'Connor PhD FSA FIIC ACR Honorary Visiting Fellow,
>> University of YorkPost-doctoral Researcher
>> Archaeological Sciences
>> Division of AGES
>> University of Bradford
>> Bradford, West Yorkshire, BD7 1DP
>>
>> Tel 01274 236498
>>
>>
>>
>> -------------------------
>> FROM: Bonetools <bonetools-bounces at listserv.niif.hu>[1] on behalf
>> of Margaris, Amy V. <amy.margaris at oberlin.edu>[2]
>> SENT: 09 July 2014 20:00
>> TO: Mailing list for archaeologists of the research group for the
>> study of object and waste of bone, antler. ivory and horn.
>> SUBJECT: Re: [Bonetools] identification of raw material
>>
>> Thanks Sonia!
>> Do you have a side view to share of this same object? I am
>> wondering what these features (the Haversian canals?) look like in
>> profile at this scale.
>> Also, what species and element are we looking at?
>>
>> Amy
>>
>>
>> On Wed, Jul 9, 2014 at 2:42 PM, Sonia O'Connor
>> <S.Oconnor at bradford.ac.uk> wrote:
>>>
>>> ??Dear Amy,
>>>
>>>
>>>
>>> If I have got the scale right and this object is c 7 mm in
>>> diameter, then the features are too small for even a small species
>>> of whale. Also the structure is not like that of mammal bone.
>>> Here is a picture of mature cetacean bone.
>>>
>>>
>>>
>>>
>>> Dr Sonia O'Connor PhD FSA FIIC ACR Honorary Visiting Fellow,
>>> University of YorkPost-doctoral Researcher
>>> Archaeological Sciences
>>> Division of AGES
>>> University of Bradford
>>> Bradford, West Yorkshire, BD7 1DP
>>>
>>> Tel 01274 236498
>>>
>>>
>>>
>>>
>>> -------------------------
>>> FROM: Bonetools <bonetools-bounces at listserv.niif.hu> on behalf of
>>> Margaris, Amy V. <amy.margaris at oberlin.edu>
>>> SENT: 09 July 2014 18:13
>>> TO: Mailing list for archaeologists of the research group for the
>>> study of object and waste of bone, antler. ivory and horn.
>>> SUBJECT: Re: [Bonetools] identification of raw material
>>>
>>>
>>>
>>> Dear Marina,
>>>
>>> Could your object be made of cetacean bone?
>>>
>>> I can't account for the curious pattern along
>>> its cross-section (reminds me of tooth/ivory?) but the parallel
>>> striae on the rounded outer surface (in your third original
>>> attachment) look to me like the relatively porous regions whale
>>> bone.
>>>
>>> Amy
>>>
>>> and p.s. to Sonia O'Connor: wow, cuttlefish shell
>>> is beautiful!
>>>
>>>
>>>
>>>
>>> On Wed, Jul 9, 2014 at 12:04 PM, Sonia O'Connor
>>> <S.Oconnor at bradford.ac.uk> wrote:
>>>>
>>>> Dear Marina,
>>>> As the lines are part of the material this
>>>> feature confirms that this is definitely not antler.
>>>>
>>>> Sonia
>>>>
>>>> Dr Sonia O'Connor PhD FSA FIIC ACR Honorary
>>>> Visiting Fellow, University of York
>>>> Post-doctoral Researcher
>>>> Archaeological Sciences
>>>> Division of AGES
>>>> University of Bradford
>>>> Bradford, West Yorkshire, BD7 1DP
>>>>
>>>> Tel 01274 236498
>>>>
>>>> ________________________________________
>>>> From: Bonetools
>>>> <bonetools-bounces at listserv.niif.hu> on behalf of
>>>> marinaevora at sapo.pt <marinaevora at sapo.pt>
>>>> Sent: 08 July 2014 13:07
>>>> To: Mailing list for archaeologists of the research group for the
>>>> study of object and waste of bone, antler. ivory and horn.
>>>> Subject: Re: [Bonetools] identification of raw material
>>>>
>>>> Hi Sonia,
>>>>
>>>> Those lines are part of the material, and
>>>> it's because of them that I
>>>> have doubts about the raw material...
>>>>
>>>> Thank you.
>>>>
>>>> best
>>>> Marina
>>>>
>>>>
>>>>
>>>>
>>>> Quoting Sonia O'Connor <S.Oconnor at bradford.ac.uk>:
>>>>
>>>> > Dear Marina,
>>>> >
>>>> > I'm not sure what it is from these images.
>>>> I cannot confirm antler.
>>>> > Please can you explain the features
>>>> indicated in the image I have
>>>> > sent back to you.
>>>> >
>>>> > All the best,
>>>> >
>>>> > Sonia
>>>> >
>>>> > Dr Sonia O'Connor PhD FSA FIIC ACR
>>>> Honorary Visiting Fellow,
>>>> > University of York
>>>> > Post-doctoral Researcher
>>>> > Archaeological Sciences
>>>> > Division of AGES,
>>>> > University of Bradford
>>>> > Bradford, West Yorkshire, BD7 1DP, UK
>>>> >
>>>> > tel 01274 23 6498
>>>> >
>>>> >
>>>> > -----Original Message-----
>>>> > From: Bonetools
>>>> [mailto:bonetools-bounces at listserv.niif.hu] On
>>>> > Behalf Of marinaevora at sapo.pt
>>>> > Sent: 04 July 2014 15:12
>>>> > To: Mailing list for archaeologists of the
>>>> research group for the
>>>> > study of object and waste of bone, antler.
>>>> ivory and horn.
>>>> > Subject: [Bonetools] identification of raw material
>>>> >
>>>> >
>>>> > Dear all,
>>>> >
>>>> > We found this round artifact in an upper
>>>> paleolithic site. I would
>>>> > like to hear your opinions about the
>>>> identification of the raw
>>>> > material. The images were taken with a
>>>> binocular microscope.
>>>> > Thank you.
>>>> >
>>>> >
>>>> > Marina Évora
>>>> >
>>>> > Please consider the impact on the
>>>> environment before printing this message.
>>>>
>>>>
>>>>
>>>> Marina Évora
>>>>
>>>> Please consider the impact on the
>>>> environment before printing this message.
>>>>
>>>> _______________________________________________
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>>>>
>>>
>>>
>>>
>>>
>>> --
>>> Amy V. Margaris
>>> Assistant Professor of Anthropology
>>> Oberlin College
>>>
>>> Spring 2014 Office Hours:
>>> MWF 3:30-4:30 and by appointment
>>>
>>> King 302
>>>
>>>
>>> http://new.oberlin.edu/arts-and-sciences/departments/anthropology/
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Bonetools mailing list
>>> Bonetools at listserv.niif.hu
>>> https://listserv.niif.hu/mailman/listinfo/bonetools
>>>
>>
>>
>>
>>
>> --
>> Amy V. Margaris
>> Assistant Professor of Anthropology
>> Oberlin College
>>
>> Spring 2014 Office Hours:
>> MWF 3:30-4:30 and by appointment
>>
>> King 302
>>
>>
>> http://new.oberlin.edu/arts-and-sciences/departments/anthropology/
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> _______________________________________________ Bonetools mailing
>> list
>> Bonetools at listserv.niif.huhttps://listserv.niif.hu/mailman/listinfo/bonetools
>
>
>
> -- François POPLIN Directeur honoraire de l?UMR 7209
> Archéozoologie, Archébotanique : sociétés, pratiques et
> environnements Responsable du Séminaire d'Anthropozoologie
> Muséum national d'Histoire naturelle CP 56 Ancien Laboratoire
> d?Anatomie comparée 55, rue de Buffon 75005 Paris 01 40 79 33 11
> fax ------ 33 14 francoispoplin.blogspot.com
Marina Évora
P PLEASE CONSIDER THE IMPACT ON THE ENVIRONMENT BEFORE PRINTING THIS MESSAGE.
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