干旱区生态环境知识资源中心(Arid): Rocky relationships: the petroglyphs of the Murujuga (Burrup Peninsula and Dampier Archipelago) in Western Australia

Arid

DOI	10.1080/08120099.2019.1577299
	Rocky relationships: the petroglyphs of the Murujuga (Burrup Peninsula and Dampier Archipelago) in Western Australia
	Ramanaidou, E. R.1; Fonteneau, L. C.2
通讯作者	Ramanaidou, E. R.
来源期刊	AUSTRALIAN JOURNAL OF EARTH SCIENCES
ISSN	0812-0099
EISSN	1440-0952
出版年	2019
卷号	66 期号:5 页码:671-698
英文摘要	The petroglyphs of the Murujuga (Burrup Peninsula and Dampier Archipelago) in Western Australia are of exceptional cultural value for the nation. It is Australia's largest and most significant collection of aboriginal rock art essentially as petroglyphs, with the number estimated at more than one million engravings. The Murujuga is a textbook example of ancient and modern times colliding as it also hosts potentially polluting, major industrial complexes such as iron ore and salt ports; liquefied natural gas, liquid ammonia and ammonium nitrate plants; railway lines, pipelines and rock quarries. The work presented in this paper is underpinned by an annual monitoring study of 10 selected sites including two control sites located on Dolphin and Gidley islands and eight test sites located closer to the industrial areas. The main rock types of the Murujuga, gabbro and granophyre, have been affected by weathering consisting of a cm-thick leached zone capped by a skin of orange and red iron and manganese oxides. The petroglyphs were engraved by removing the few top millimetres of the iron oxide-rich layer and the contrast with the paler leached zone clearly showing the carved motifs. Phosphorus is abnormally enriched in the leached zone and the surface coating, with manganese exclusively on the surface coating, demonstrating the impact of bird droppings and 'desert varnish' on the rocks. The colour difference and the hematite-goethite ratio, measured with a field portable reflectance spectrometer, between the background and engraving provides a tool to estimate the relative age of the petroglyphs and the selection of the backgrounds. As the fine-grained granophyres were preferentially chosen from the coarser-grained gabbros to host the petroglyphs, the goethitic (or yellower) backgrounds were prepared as canvas before being engraved. Many petroglyphs register the food items of the area, which changed as the last ice age ended and sea levels rose. We hypothesise that based on their locations and colour difference the constraint for the oldest age of the petroglyphs exceeds 17 000 years BP.
英文关键词	petroglyphs rock art Murujuga Dampier Archipelago Burrup Western Australia granophyre gabbro weathering hematite goethite birds
类型	Article
语种	英语
国家	Australia
收录类别	SCI-E
WOS记录号	WOS:000466677100001
WOS关键词	ART ENGRAVINGS PETROGLYPHS ; WEATHERING HISTORY ; EROSION RATES ; ISLANDS ; SEA
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
来源机构	Commonwealth Scientific and Industrial Research Organisation
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214567
作者单位	1.CSIRO Mineral Resources, ARRC, Bentley, WA 6102, Australia; 2.Corescan Pty Ltd, Ascot, WA 6104, Australia
推荐引用方式 GB/T 7714	Ramanaidou, E. R.,Fonteneau, L. C.. Rocky relationships: the petroglyphs of the Murujuga (Burrup Peninsula and Dampier Archipelago) in Western Australia[J]. Commonwealth Scientific and Industrial Research Organisation,2019,66(5):671-698.
APA	Ramanaidou, E. R.,&Fonteneau, L. C..(2019).Rocky relationships: the petroglyphs of the Murujuga (Burrup Peninsula and Dampier Archipelago) in Western Australia.AUSTRALIAN JOURNAL OF EARTH SCIENCES,66(5),671-698.
MLA	Ramanaidou, E. R.,et al."Rocky relationships: the petroglyphs of the Murujuga (Burrup Peninsula and Dampier Archipelago) in Western Australia".AUSTRALIAN JOURNAL OF EARTH SCIENCES 66.5(2019):671-698.