Provenance of clay used in Garamantian ceramics from Jarma, Fazzan region (south-west Libya): A combined geochemical and microfossil analysis

Provenance of clay used in Garamantian ceramics from Jarma, Fazzan region (south-west Libya): A combined geochemical and microfossil analysis
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来自法赞地区(利比亚西南部)贾尔马的加拉曼特陶瓷所用粘土的来源:地球化学和微化石的综合分析

DOI:
10.1016/j.jasrep.2016.08.030
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发表时间:
2016
期刊:
影响因子:
0.9
通讯作者:
Leitch V
Leitch V
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--
文献类型:
--
作者:
Leitch V

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对产自利比亚法赞地区贾尔马的公元前一千年和公元一千年手工陶器样本进行了地球化学 (XRF) 和微化石分析。一组特定彩绘器皿的来源对该材料的生产和分销具有重要影响。对该地区选定的水沉积物进行的平行地球化学分析表明,陶器所用材料来自撒哈拉粘土。地球化学分析确定岩盐、石膏和白云石是粘土源的组成部分,这与当地古湖泊沉积物的矿物学含量一致。伊利石/高岭石粘土特征也与撒哈拉粘土的起源一致,而不是撒哈拉以南地区。一些陶器中的微化石组合由薄壳、明显单一特异性的介形类组合以及可能的腹足动物碎片组成,并且与撒哈拉大陆内湖泊的动物群一致。我们的分析建立在之前对加拉曼提陶器粘土来源的评估的基础上,这些评估表明材料相当本地化地源自古湖沉积物。带有介形类的白底红漆器皿与贾尔马的其他材料截然不同,这表明该器皿是撒哈拉地区本地贸易的对象。某些版本的彩绘器皿采用不含介形类的织物制作,似乎也表明了贾玛的一些本地仿制品。
Geochemical (XRF) and microfossil analyses were applied to a sample of 1st millennium BCE and 1st millennium CE handmade pottery from Jarma, Fazzan region, Libya. The provenance of a particular group of painted ware has important implications for the production and distribution of this material. A parallel geochemical analysis of selected water-lain sediments in the region suggests a Saharan clay source for the material used in the pottery. Geochemical analysis identifies halite, gypsum and dolomite as components of the clay source, and this is consistent with the mineralogical content of local palaeolake sediments. Illite/kaolinite clay signatures are also consistent with a Saharan, as opposed to sub-Saharan, origin for the clay. Microfossil assemblages within some of the pottery comprise of thin-shelled, apparently monospecific ostracod assemblages together with possible fragments of gastropods, and are consistent with faunas of intra-continental Saharan lakes. Our analysis builds on previous assessments of the clay sources of Garamantian pottery that suggest that materials were sourced in palaeolake sediments fairly locally. The red on white painted ware with ostracods stands out from other material at Jarma and this suggests that the ware was the object of localised trade in the Sahara. The production of some versions of the painted ware in fabrics lacking ostracods also seems to indicate some local imitations at Jarma.
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