Sedimentary Characteristics and Sequence Framework of the Zhuhai-Zhujiang Formation in the Middle Area of <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:place w:st="on"><st1:PlaceName w:st="on">Pearl River</st1:PlaceName> <st1:PlaceName w:st="on">Mouth</st1:PlaceName> <st1:PlaceType w:st="on">Basin</st1:PlaceType></st1:place> <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>

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weight: bold" lang=EN-US>Sedimentary Characteristics and Sequence Framework of the Zhuhai-Zhujiang Formation in the Middle Area of Pearl River Mouth Basin

详细信息

责任者：Zhu Yanhe (Beijing Research of Center of CNOOC China Ltd. ; Beijing 100027 ; China) ; Zhu Weilin
刊名：Marine Geology & Quaternary Geology
出版年：2009
卷期：29(4)
关键词：古近纪 ; Paleogene Period ; 新近纪 ; Neogene Period ; 层序地层学 ; sequence stratigraphy ; 珠江口盆地 ; Zhujiangkou Basin
页码：p.77-83
图表：7 illus., 17 refs.
分类号：1200
issnNo：ISSN0256-1492
isbnNo：CN37-1117/P

摘要

Sequence of Zhuhai Formation in the Zhujiangkou Basin in the north of the South China Sea can be divided into SQ32 and SQ25.5, and Zhujiang Formation can be divided into SQ23.8, SQ21, SQ17.5 and SQ16.5. So, the three frontal sequences contain TST and HST, and the others contain LST, TST and HST. Baiyun movement which was a great tectonic event at the end of Oligocene made the Baiyun sag subside quickly and shelf break shift from south to north, then the sedimentary environment in the area changed from shelf sediments of Zhuhai Formation to shelf and slope sediments of Zhujiang Formation. This event led to the changes in geomorphologic subsidence, sequence boundary and sedimentary environment. Lots of sediments transported to slope to from a controlling deep-marine fan. So, sea-level changes, tectonic subsidence and sediment supply are the three main factors.

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