CAJ | 학술논문

对东海陆架西南部台北坳陷13口钻井孢粉分析表明,本地区新近纪植物群经历了3个发展阶段,即:1)早中新世早期松科花粉优势期;2)早、中中新世阿丁枫科花粉繁盛期;3)晚中新世至早上新世草本被子植物发展期.各时期孢粉植物群在横向上几乎没有大的区别,表明新近纪整个坳陷内构造与沉积环境及其变迁具有很好的一致性.植物群演替反映古气候从早中新世早期的湿润温凉到早、中中新世的暖湿,最后(晚中新世至早上新世)又趋温凉的变化历程.
대동해륙가서남부태북요함13구찬정포분분석표명,본지구신근기식물군경력료3개발전계단,즉:1)조중신세조기송과화분우세기;2)조、중중신세아정풍과화분번성기;3)만중신세지조상신세초본피자식물발전기.각시기포분식물군재횡향상궤호몰유대적구별,표명신근기정개요함내구조여침적배경급기변천구유흔호적일치성.식물군연체반영고기후종조중신세조기적습윤온량도조、중중신세적난습,최후(만중신세지조상신세)우추온량적변화역정.
Based on palynological analysis from 13 drilling wells, 3 Neogene palynofloral development stages are recognized from the marine and terrestrial interactively deposits in the Cenozoic Taibei Depression, East China Sea. They are: 1) the early Early Miocene Pinaceae-dominant stage; 2) the Early and Middle Miocene Altingiaceae-flourishing stage; and 3) the Late Miocene - Early Pliocene herbaceous angiosperm-developed stage. These stages are dated palynologically and microplanktonically, especially by the calibration to the marine microfossils from the interacted beds.