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DOI	10.1016/j.epsl.2019.115992
	Survival of graphitized petrogenic organic carbon through multiple erosional cycles
	Sparkes R.B.; Hovius N.; Galy A.; Liu J.T.
发表日期	2020
ISSN	0012821X
卷号	531
英文摘要	Graphite forms the endpoint for organic carbon metamorphism; it is extremely resilient to physical, biological and chemical degradation. Carbonaceous materials (CM) contained within sediments, collected across Taiwan and from the Gaoping submarine canyon, were analyzed using Raman spectroscopy to determine the crystallinity. This allowed the erosional and orogenic movements of petrogenic organic carbon (OCpetro) during the Taiwanese orogeny to be deduced. After automatically fitting and classifying spectra, the distribution of four groups of CM within the sediments provides evidence that many forms of OCpetro have survived at least one previous cycle of erosion, transport and burial before forming rocks in the Western Foothills of the island. There is extensive detrital graphite present in rocks that have not experienced high-grade metamorphism, and graphite flakes are also found in recently deposited marine sediments off Taiwan. The tectonic and geological history of the island shows that these graphite flakes must have survived at least three episodes of recycling. Therefore, transformation to graphite during burial and orogeny is a mechanism for stabilizing organic carbon over geological time, removing biospheric carbon from the active carbon cycle and protecting it from oxidation during future erosion events. © 2019 The Authors
关键词	erosion graphite organic carbon orogeny Raman spectroscopy recycling
英文关键词	Crystallinity; Erosion; Graphite; Raman spectroscopy; Recycling; Sediments; Submarine geology; Carbonaceous materials; Chemical degradation; Geological history; Geological time; High grade metamorphism; Marine sediments; orogeny; Submarine canyon; Organic carbon; erosion; graphite; marine sediment; metamorphism; organic carbon; orogeny; petrogenesis; Raman spectroscopy; survival; Gaoping Submarine Canyon; Pacific Ocean; South China Sea; Taiwan
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/202900
作者单位	Ecology and Environment Research Centre, Department of Natural Sciences, Manchester Metropolitan University, Manchester, United Kingdom; Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, United Kingdom; GFZ German Research Centre for Geosciences, Telegrafenberg, Potsdam, 14473, Germany; CRPG, CNRS, Université de Lorraine BP20, Vandœuvre-lès-Nancy, 54501, France; Department of Oceanography, National Sun Yat-sen University, Kaohsiung, Taiwan
推荐引用方式 GB/T 7714	Sparkes R.B.,Hovius N.,Galy A.,et al. Survival of graphitized petrogenic organic carbon through multiple erosional cycles[J],2020,531.
APA	Sparkes R.B.,Hovius N.,Galy A.,&Liu J.T..(2020).Survival of graphitized petrogenic organic carbon through multiple erosional cycles.Earth and Planetary Science Letters,531.
MLA	Sparkes R.B.,et al."Survival of graphitized petrogenic organic carbon through multiple erosional cycles".Earth and Planetary Science Letters 531(2020).