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Table 2 XRD analysis results showing the mineral compositions and contents of the oncolitic limestone from the Cambrian Miaolingian Series, North China Platform

From: Morphology and features of Cambrian oncoids and responses to palaeogeography of the North China Platform

Section nameSample numberMineral composition and content (%)
QuartzPotassium feldsparCalciteDolomitePyriteClay minerals
Wuhai sectionWHXZ-14286611
WHXZ-273799/2
WHXZ-3228961/
WHXZ-454837/1
WHXZ-5828010//
Diaoquan sectionDQZX-1218215//
DQZX-23283111/
DQZX-3927910//
DQZX-4847513//
DQZX-5847513//
Xiaweidian sectionXWDXZ-12/953//
XWDXZ-21/9441/
XWDXZ-311935//
XWDXZ-41/9441/
XWDXZ-5119521/
Sandaogou sectionSDGZX-121951/1
SDGZX-22/97/1/
SDGZX-32/952/1
SDGZX-4229411/
SDGZX-51/95112
Fuzhou Bay sectionFZXZ-12/962//
FZXZ-21/981//
FZXZ-32/971//
FZXZ-4//972/1
FZXZ-51/981//
Jinzhou Bay sectionJZXZ-11/9711/
JZXZ-21/972//
JZXZ-32/98///
JZXZ-4//991//
JZXZ-51/981//