Detrital composition of Tiesiao Formation and Liangjiehe Formation of Nanhua System in Songtao Highland of the northeastern Guizhou Province and tectonic setting of its source regions

LONG Jianxi; ZHOU Qi; ZHANG Sui; ZHU Luyan; YANG Zhongqin

doi:10.19388/j.zgdzdc.2023.280

2024 Vol. 11, No. 4

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LONG Jianxi, ZHOU Qi, ZHANG Sui, ZHU Luyan, YANG Zhongqin. 2024. Detrital composition of Tiesiao Formation and Liangjiehe Formation of Nanhua System in Songtao Highland of the northeastern Guizhou Province and tectonic setting of its source regions. Geological Survey of China, 11(4): 42-49. doi: 10.19388/j.zgdzdc.2023.280

Citation:

LONG Jianxi, ZHOU Qi, ZHANG Sui, ZHU Luyan, YANG Zhongqin. 2024. Detrital composition of Tiesiao Formation and Liangjiehe Formation of Nanhua System in Songtao Highland of the northeastern Guizhou Province and tectonic setting of its source regions. Geological Survey of China, 11(4): 42-49. doi: 10.19388/j.zgdzdc.2023.280

Detrital composition of Tiesiao Formation and Liangjiehe Formation of Nanhua System in Songtao Highland of the northeastern Guizhou Province and tectonic setting of its source regions

1. Guizhou Geology Institution, Guizhou Guiyang 550081, China;
2. No.103 Geology Team, Guizhou Geology and Mineral Development Bureau, Guizhou Tongren 554300, China;
3. Guizhou Geology and Mineral Center, Guizhou Guiyang 550018, China

Received Date: 25 September 2023

Revised Date: 09 July 2024

Abstract

Abstract

The tectonic properties of Xuefeng movement has significant controversies. This study anglyzed the terrigenous detrital composition of Tiesiao Formation and Liangjiehe Formation of Nanhua System in Songtao Highland of the northeastern Guizhou Province, using Dickinson triangle diagrams theory. The results show that the terrigenous detrital source mainly comes from arc orogen sources and recycled orogen provenances, accompanied by volcanic activities. The maturity of the detrital components in Tiesiao Formation is relatively low, and the components mainly landed around the volcanic arc source area, showing the characteristics of near erosion and transporting accumulation. The quartz content in Liangjiehe Formation is higher than that in Tiesiao Formation, which lands in the recycled orogen provenances. The detrital composition contains basalt, andesitic basalt, trachyte, tuff, ignimbrite, rhyolite, felsic mylonites and so on, indicating that intracontinental rift and intraplate orogenic mechanism occurred during or before the sedimentation of Tiesiao Formation and Liangjiehe Formation in the study area. This research could provide some microscopic evidence for tectonic attribute of Xuefeng movement.
- Nanhua System /
- Tiesiao Formation /
- Liangjiehe Formation /
- terrigenous debris /
- intracontinental rift /
- intraplate orogeny