CAJ | 학술논문

本文系统研究了长江下游地区(包括江苏、浙江和安徽)晚泥盆世和早石炭世孢子50属150余种。根据孢子在地层中的分布和演化规律，建立了7个孢子带，其中晚泥盆世3个带，早石炭世4个带。自下而上依次为：1)Rugospora flexuosa-Grandispora cornuta(FC)带；2)Vallatisporites pusillites-Retispora lepidophyta (PL)带；3)Retispora lepidophyta-Verrucosisporites nitidus(LN)带；4)Vallatisporites verrucosus-Retusotriletes incohatus(VI)带；5)Spelacotriletes pretiosus-Cingulizonates bialatus(PB)带；6)Schopfites claviger-Auroraspora macra(LN)带；7)Lycospora pusilla (PU)带。五通群下部观山组化石孢子丰富，时代相当西欧晚泥盆世法门阶(Famennian)Fa2c-Fa2d。泥盆系和石炭系界线置于陈家边组底部，即3带Retispora lepidophyta- Verrucosisporites nitidus(LN)带和4带Vallatisporites verrucosus-Retusotriltes incohatus(VI))带之间。本文还深入讨论了沉积环境、微古植物地理区、国内外比较等问题。
본문계통연구료장강하유지구(포괄강소、절강화안휘)만니분세화조석탄세포자50속150여충。근거포자재지층중적분포화연화규률，건립료7개포자대，기중만니분세3개대，조석탄세4개대。자하이상의차위：1)Rugospora flexuosa-Grandispora cornuta(FC)대；2)Vallatisporites pusillites-Retispora lepidophyta (PL)대；3)Retispora lepidophyta-Verrucosisporites nitidus(LN)대；4)Vallatisporites verrucosus-Retusotriletes incohatus(VI)대；5)Spelacotriletes pretiosus-Cingulizonates bialatus(PB)대；6)Schopfites claviger-Auroraspora macra(LN)대；7)Lycospora pusilla (PU)대。오통군하부관산조화석포자봉부，시대상당서구만니분세법문계(Famennian)Fa2c-Fa2d。니분계화석탄계계선치우진가변조저부，즉3대Retispora lepidophyta- Verrucosisporites nitidus(LN)대화4대Vallatisporites verrucosus-Retusotriltes incohatus(VI))대지간。본문환심입토론료침적배경、미고식물지리구、국내외비교등문제。
Miospores are abundant and well-preserved in the type section of Late Devonian and Early Carboniferous strata in the Lower Yangtze Valley. Based on an extensive study of the Miospores zonation in the Late Devonian and Early Carboniferous strata in the Lower Yangtze Valley, the author holds that there exist seven Miospore assemblege zones, comprising three Late Devonian zones and four Early Carboniferous zones: 1)Rugospora flexuosa-Grandispora cornuta(FC) zone; 2)Vallatisporites pusillites-Retispora lepidophyta (PL) zone; 3)Retispora lepidophyta-Verrucosisporites nitidus(LN) zone; 4)Vallatisporites verrucosus-Retusotriletes incohatus (VI) zone; 5)Spelaeotriletes pretiosus-Cingulizonates bialatus(PB) zone; 6)Schopfites claviger- Auroraspora macra (CM) zone; 7)Lycospora pusilla (PU) zone. A palynological characterization of the Devonian-Carboniferous boundary has, until now, been based on the disappearance ofRetispora lepidophytaand Vallatisporites pusillites.It is quite clear thatVallatisporites verrucosus-Retusotriletes incohatus(VI) zone should beling to Carboniferous, and the boundary between the Devonian and Carboniferous strata in Lower Yangtze Valley should be located at the bottom of the Chenjiabian Formation. The Devonian and Carboniferous miospores undoubtedly play an important role in stratigraphical subdivision and correlation as well as in reconstruction of palaeogeography, palaeontology and palaeoclimates. On the basis of palynological data, the author reassessed the age of the Guanshan Formation and assigned this formation to Late Devonian, and confirmed that theRugospora flexuosa-Grandispora cornuta (FC) zone should correspond to the Upper part of Famennian Formation (Fa2c-Fa2d).