摘要
河南济源地区中三叠世油房庄组发育了一套滨浅湖相的砂泥岩沉积,在该组上段紫红色与黄绿色砂泥岩沉积中发现了大量的遗迹化石。其中高能砂质滨湖沉积中识别出6种遗迹组构:斑状生物扰动组构、Skolithosisp.-Pl-anolites montanus组构、Skolithos verticalis组构、Planolites beverleyensis组构、Skolithosisp.组构和Palaeophycus annulatus遗迹组构,它们可归入陆相Skolithos遗迹相;极浅湖泥岩夹粉砂岩沉积中识别出3种遗迹组构:Skolithos linearis遗迹组构、Taenidium barretti遗迹组构和植物根迹组构,它们可归入陆相Scoyenia遗迹相。
Abundant trace fossils are preserved in the alternation of purple and yellow greenish sandstones and mudstones which are formed in littoral and very shallow lake environments in the lower part of Middle Triassic Youfangzhuang Formation, Jiyuan Region, western Henan Province. Six ichnofabrics are found in high-energy zone of lake margin sandstones, they include： Porphyritic bioturbation ichnofabric, Skolithos isp.-Planolites montanus ichnofabric ,Skolithos verticalis ichnofabric, Planolites beverleyensis ichnofabric, Skolithos isp. Ichnofabric and Palaeophycus annulatus ichnofabric, and can be assigned to Skolithos ichnofacies ; three ichnofabrics of Skolithos linearis ichnofabric, Taenidium barrette ichnofabric and rizoliths ichnofabric are recognized from middle and lower energy zone of very shallow lacustrine siltstones and mudstones, they belong to Scoyenia ichnofacies.
出处
《沉积学报》
CAS
CSCD
北大核心
2007年第3期372-379,共8页
Acta Sedimentologica Sinica
基金
国家自然科学基金(批准号:40572012
40372013)
科技部重大基础研究专项(No.2005CCA05000)
河南省创新人才基金联合资助
