DOI: 10.1306/12191414093
Scopus记录号: 2-s2.0-84948463005
论文题名: Raman spectroscopic analysis of carbonaceous matter and silica in the test walls of recent and fossil agglutinated foraminifera
作者: McNeil D.H. ; Schulze H.G. ; Matys E. ; Bosak T.
刊名: AAPG Bulletin
ISSN: 0149-1460
EISSN: 1558-9190
出版年: 2015
发表日期: 2015
卷: 99, 期: 6 起始页码: 1081
结束页码: 1097
语种: 英语
Scopus关键词: Cements
; Fluorescence
; Raman spectroscopy
; Silica
; Agglutinated foraminifera
; Amorphous carbonaceous matter
; Carbonaceous materials
; Carbonaceous matter
; Hydrocarbon generation
; Optimal temperature
; Organic degradation
; Relative intensity
; Spectroscopic analysis
; amorphous medium
; cement
; foraminifera
; fossil
; hydrocarbon
; quartz
; Raman spectroscopy
; shell
; silica
; Foraminifera
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Raman spectroscopy has been used extensively in thermal maturation studies of kerogen, but has not been used to examine the maturation of organic cements in agglutinated foraminifera. Here, we use Raman spectroscopy to document the existence of carbonaceous matter and silica in recent and fossil agglutinated foraminifera, and to measure thermal alteration effects in fossil foraminifera. The distribution of carbonaceous matter through the test (shell) walls of agglutinated foraminifera suggests that this carbonaceous material is derived from primary organic cement and not from random contamination. Fossil specimens exhibit three broad stages of maturation: (1) Immature specimens are characterized by moderately strong fluorescence, broad, low intensity Raman peaks (relative to fluorescence), and a tendency for the G-band to occur at lower wave numbers. These attributes are consistent with the presence of amorphous carbonaceous matter and minor organic degradation. (2) Mature samples (oil window) exhibit high fluorescence, increased relative D- and G-band intensities, and a decreased width of the D-band. (3) Postmature samples exhibit low levels of fluorescence and high relative D- and G-band intensities, a tendency for the G-band to be located at higher wave numbers, an increase in the D:G band ratio, and an increase of the relative intensity of the silica peak. This stage is consistent with the presence of highly ordered carbonaceous matter and diagenetic quartz. These findings indicate that Raman spectroscopic analysis of fossil agglutinated foraminifera can be used as a quick and easy tool to assess thermal maturity and estimate optimal temperatures for hydrocarbon generation. © 2015. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84948463005&doi=10.1306%2f12191414093&partnerID=40&md5=840aca06436181ea1adda8e0c785ccf8
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13031
Appears in Collections: 过去全球变化的重建 影响、适应和脆弱性 科学计划与规划 气候变化与战略 全球变化的国际研究计划 气候减缓与适应 气候变化事实与影响
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Recommended Citation:
McNeil D.H.,Schulze H.G.,Matys E.,et al. Raman spectroscopic analysis of carbonaceous matter and silica in the test walls of recent and fossil agglutinated foraminifera[J]. AAPG Bulletin,2015-01-01,99(6)