The AAPG/Datapages Combined Publications Database
AAPG Bulletin
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AAPG Bulletin; Year: 2021; Issue: August DOI: 10.1306/02262118214
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Figure 6.
Scanning electron microscopy (SEM) images and energy-dispersive x-ray spectroscopy (EDS) spectrum of pore-filling authigenic chlorite. (A–C) The SEM images showing increasing magnification (mag) of the same location. (A) Chlorite (chlor) clusters occurring throughout pore space and together with kaolinite (kaol). The mag is 2000×. (B) Isolated chlor cluster occurring in pore space. The mag is 8000×. (C) Individual chlor flakes within the cluster from image (B). The mag is 30,000×. (D) The EDS spectrum of Fe-rich chlor taken from the entire area of image (C). Major elemental peaks of Si, Al, and Fe as well as minor amounts of Mg reflect the chemical composition of chlor ((Mg, Al, Fe)12[(Si, Al)8O20](OH)16). The high C peak is the result of C coating during sample preparation. det = detector; ETD = Everhart-Thornley detector; GNR = graphene nanoribbon; HV = high voltage; qtz = quartz; SE = secondary electron; WD = working distance.
Figure 6. Scanning electron microscopy (SEM) images and energy-dispersive x-ray spectroscopy (EDS) spectrum of pore-filling authigenic chlorite. (A–C) The SEM images showing increasing magnification (mag) of the same location. (A) Chlorite (chlor) clusters occurring throughout pore space and together with kaolinite (kaol). The mag is 2000×. (B) Isolated chlor cluster occurring in pore space. The mag is 8000×. (C) Individual chlor flakes within the cluster from image (B). The mag is 30,000×. (D) The EDS spectrum of Fe-rich chlor taken from the entire area of image (C). Major elemental peaks of Si, Al, and Fe as well as minor amounts of Mg reflect the chemical composition of chlor ((Mg, Al, Fe)12[(Si, Al)8O20](OH)16). The high C peak is the result of C coating during sample preparation. det = detector; ETD = Everhart-Thornley detector; GNR = graphene nanoribbon; HV = high voltage; qtz = quartz; SE = secondary electron; WD = working distance.