DOI: 10.1016/j.quascirev.2013.03.001
Scopus记录号: 2-s2.0-84876310757
论文题名: Erosion rates and weathering history of rock surfaces associated with Aboriginal rock art engravings (petroglyphs) on Burrup Peninsula, Western Australia, from cosmogenic nuclide measurements
作者: Pillans B. ; Fifield L.K.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2013
卷: 69 起始页码: 98
结束页码: 106
语种: 英语
英文关键词: Burrup Peninsula
; Cosmogenic nuclides
; Erosion rates
; Rock art
Scopus关键词: Burrup Peninsula
; Cosmogenic nuclides
; Erosion rates
; Human settlements
; Industrial development
; Long-term preservation
; Rock arts
; Western Australia
; Erosion
; Etching
; Isotopes
; Pinch effect
; Quartz
; Rocks
; Weathering
; beryllium isotope
; cosmogenic radionuclide
; dating method
; erosion rate
; human settlement
; indigenous population
; industrial development
; industrial emission
; petrography
; quartz
; rainfall
; relief
; rock art
; weathering
; Australia
; Dampier Archipelago
; Western Australia
英文摘要: The Burrup Peninsula and surrounding Dampier Archipelago, in Western Australia, contain the world's largest known gallery of rock art engravings (petroglyphs), estimated to number up to 1 million images. The peninsula is also the site of major industrial development and there are concerns that industrial emissions may adversely affect the stability and longevity of the rock art. We have studied the natural processes and rates of weathering and erosion, including the effects of fire, that affect the stability of rock surfaces and hence the longevity of the rock art, using cosmogenic nuclides. The concentration of 10Be in quartz yields erosion rates in the range 0.15-0.48mm/1000 years on horizontal rock surfaces and 0.34-2.30mm/1000 years on vertical rock faces. The former, largely caused by mm-scale surface flaking, are amongst the lowest erosion rates measured by cosmogenic nuclides anywhere in the world. The latter are inferred to represent a combination of mm-scale flaking and very rare centimetre- to metre-scale block falls, controlled by failure along joint planes. Such low erosion rates result from a combination of resistant rocks, low relief and low rainfall, favouring long-term preservation of the petroglyphs - long enough to encompass the known period of human settlement in Australia. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60642
Appears in Collections: 过去全球变化的重建
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作者单位: Research School of Earth Sciences, The Australian National University, Canberra, ACT 0200, Australia; Research School of Physics and Engineering, The Australian National University, Canberra, ACT 0200, Australia
Recommended Citation:
Pillans B.,Fifield L.K.. Erosion rates and weathering history of rock surfaces associated with Aboriginal rock art engravings (petroglyphs) on Burrup Peninsula, Western Australia, from cosmogenic nuclide measurements[J]. Quaternary Science Reviews,2013-01-01,69