Carboniferous mixed terrigenous clastic, carbonate and sulphate sediments in the Bachu area, Xinjiang

Authors
Citation
Ct. Xiao et Yt. Pan, Carboniferous mixed terrigenous clastic, carbonate and sulphate sediments in the Bachu area, Xinjiang, ACT GEO S-E, 73(3), 1999, pp. 341-347
Citations number
8
Categorie Soggetti
Earth Sciences
Journal title
ACTA GEOLOGICA SINICA-ENGLISH EDITION
ISSN journal
10009515 → ACNP
Volume
73
Issue
3
Year of publication
1999
Pages
341 - 347
Database
ISI
SICI code
1000-9515(199909)73:3<341:CMTCCA>2.0.ZU;2-1
Abstract
The Carboniferous system in the Xiaohaizi area, Bachu County, Xinjiang Uygu r Autonomous Region, composed of typical mixed terrigenous elastic, carbona te and sulphate sediments, was mainly deposited in the tidal flat and lagoo n environments. The mixed sediments occur as the following eleven types: 1. limestone intercalated with siltstone; 2. interbeds of shale and limestone ; 3. gypsolyte interbedded with limestone; 4. gypsolyte intercalated with s iltstone; 5. gypsolyte interbedded with shale; 6. gypsolyte intercalated wi th siltstone, limestone and dolomite; 7. siltstone interbedded with gypsoly te and limestone; 8. terrigenous detritus scattered in carbonate matrix; 9. carbonate as cement in elastic rocks; 10. mixed sediments of carbonate and terrigenous mud; 11. mixed sediments of carbonate grains with terrigenous sand. Based on the analysis of the dynamic mechanism of mixed sediments, it is believed that these types of mixed sediments in the study area were con trolled by climate, sea level change and sources of sediments.