摘要
本文是在综合研究了贵州寒武纪的沉积相和生物相特征、古地理位置及地质发展史之后,对贵州寒武系的分区分六个时期(即梅树村期、筇竹寺期、沧浪铺期、龙王庙期、中寒武世和晚寒武世)进行了较详细的划分和论述。
The Cambrian system is well developed in Gui/hou Province. Detailed paleontological and sedimentological work, especially the analyses of trilobites, archaeocyathids and small shally fossils, proves that there exists a change in depositional state from shallow water platform to deep water slope marginal sea or from shallow sea shore to deep water slope-marginal sea, with fragments gradually decreased. The paleogeographical and sedimentological models can be inferred to be shallow sea -platform -slope-marginal sea. The Cambrian divisions (from the Meishucun age to Late Cambrian) of Guizhou are as follows;A. The Meishucun Age (Fig. 1 - 1 ):Ⅰ. Yang/.i Province; including the western areas of Dejiang wengan - Dryun line.(Ⅰ1) Weining - Xuanwei Subprovince; including the western areas of Weining - Xuanwei line.(Ⅰ2) Xishui - Zhenxiong Subprovince: including the eastern areas of Weining -Xuanwei line and the western areas of Xishui - Dafan line.(Ⅰ3) Zhijin Subprovince: including the eastern areas of Xishui - Dafan line and the western areas of Jinsha - Qianxi -Anshun line.(Ⅰ4) Zunyi - Qingzhen Subprovince: including the eastern areas of Jinsha - Qianxi - Anshun line and the western areas of Wengan - Duyun line.Ⅱ. Transitional Province; including the eastern areas of Dejiang - Wengan line and the western areas of Tianzhu - Jianhe-Sandu line.(Ⅱ1)Jiangkou - Duyun Subprovince: including the eastern areas of Dejiang - Wengan line and the western areas of Song-tao - Tunren - Kaili line.(Ⅱ2) Taijiang - Denzhai Subprovince: including the eastern areas of Song tao -Tonren - Kaili line and the weastern areas of Sandu - Jianhe - Tianzhu line.Ⅲ. Jiangnan Province; including the eastern areas of Sandu - Jianhe - Tianzhu line.B. The Qiongzhusi Age (Fig. 1-2):Ⅰ . Yangzi Province; including the western areas of Shiqian - Yuqin - Duyun line. ( I1) Weining - Xuanwei Subprovince: including the western areas of Weining - Xuanwei line.(Ⅰ2) Jinsha - Zhijin Subprovince: including the eastern areas of Weining - Xuanwei line and the western areas of Jind-ingshan of Zunyi - Anshun line.(Ⅰ3) Zunyi - Wengan Subprovince: including the eastern areas of Shiqian - Yuqin Duyun line.Ⅱ. Transitional Province: including the eastern areas of Shiqian - Yuqin - Duyun line and the western areas of Tianzhu- Nanming of Jianhe - Jianhe - Sandu line.(Ⅱ1) Jiangkou - Duyun Subprovince: including the eastern areas of Shiqian - Yuqing - Duyun line and the western areas of Songtao - Tunren - Kaili - Denzhai line.(Ⅱ2) Taijiang - Danzhi Subprovince: including the eastern afeas of Songtao - Tunren - Kaili - Denzhai line and the western areas of Tianzhu - Nanming of Jianhe - Jianhe - Sandu line.Ⅲ. Jiangnan Province; including the eastern areas of Tianzhu - Nanming of Jianhe - Jianhe - Sandu line.C. The Canglangpu Age (Fig. 1 -3): ·292· 贵州地质 1990年第7卷Ⅰ. Yangzi Province; including the western areas of Shiqian (East) - Yuqing (East) - Duyun line.(Ⅰ1) Weining - Xuanwei Subprovince: including the western areas of Weining - Xuanwei line.(Ⅰ2) Zunyi - Zhijin Subprovince: including the eastern areas of Weining - Xuanwei line and the western areas of Wuchuan - Fenggan - Wengan line.(Ⅰ3) Yanhe - Wengan Subprovince: including the eastern areas of Wuchuan - Fenggan - Wengan line and the weastern areas of Shiqian (East) - Yuqing (East) - Duyun line.Ⅱ. Transitional Province; including the eastern areas of Shiqian (East)- Yuqing (East) - Duyun line and the western areas of Tianzhu - Nanming of Jianhe - Jianhe -Sandu line.(Ⅱ1) Jiangkou - Duyun Subprovince: including the eastern areas of Shiqian (East)- Yuqing (East)-Duyun line and the western areas of Tunren - Yuping - Kaili line.(Ⅱ2) Taijiang- Danzhai Subprovince: including the eastern areas of Tunren - Yuping - Kaili line and the western areas of Tianzhu - Nanming of Jianhe - Jianhe - Sandu line.Ⅲ. Jiangnan Province: including the eastern areas of Tianzhu - Nanming of Jianhe - Jianhe - Sandu line.D. The Longwangmiao Age
出处
《贵州地质》
1990年第4期283-292,共10页
Guizhou Geology
