福建省中二叠世童子岩组含煤沉积物质来源的探讨

A Discussion on Middle Permian Tongziyan Formation Coal-bearing Deposit Provenance

通过对福建省童子岩组含砂量、煤的干燥基灰分、煤的含硫量及东带地层生物群特征的研究,表明童子岩组东带地层沉积具有不均一性。利用染色及光度测定法对含春、天湖岩、铅坑等地区童子岩组中的1 300个粘土样品进行了测试,其数据规律反映出东部存在火山源区。据此推断上杭—德化深大断裂以西的地区其物源区应该是闽西北隆起,上杭—德化深大断裂以东地区物源区应该是"华夏古陆"。

Through researehes on coal dry basis ash, sulfur contents, Tongziyan Formation strata sand content and eastern zone strata biota features, have revealed the heterogeneity of strata deposits in the eastern zone. Using staining and photometry methods carried out tests for Tongziyan Formation 1300 clay samples from Hanehun, Tianhuyan, Qiankeng etc. Based on data pattern has reflected a volcanie provenance in the east. The provenance of the area to the west of Shanghang--Dehua deep-seated fault should be the Northwest Fu- jian Uplift; while to the east of the fault should be the Cathaysia.