摘要
本文报道了发现于我国晚三叠世、侏罗纪及第三纪煤中一种植物生殖器官残体,它们类似于蕨类植物的大孢子,壁的表面具网状纹饰,但无单缝或三缝构造。有证据表明它们是裸子植物种子内的大孢子,这也是国内首次报道煤中的这种残体。利用生物显微镜和扫描电镜对上述各时代煤中的裸子植物大孢子壁的显微及亚显微构造进行了初步研究,并就其所具有的古植物学、煤岩学和石油地质学意义进行了讨论。
Remains of a kind of plant reproductive organ found in Late Triassic, Jurassic and Tertiary coals in China are reported in this paper. They are similar to megaspores of pteridophyta but have no mono or trilete structures. There are reticulate ornamentations on the surface of the walls. Evidence proves that they are megaspores in seeds of gymnosperms which have been first discovered in coals in China. A preliminary study on the micro- and submicrostructures of walls of the megaspore walls of gymnosperms in coals of various ages has been made using the biomicroscope and scanning electron microscope. The discovery and study of the megaspores of gymnosperms are of important significance in paleobotany, coal petrology and petroleum geology.
出处
《地质论评》
CAS
CSCD
北大核心
1995年第6期559-563,T001,共6页
Geological Review
关键词
煤矿床
植物生殖器官
残体
地质构造
煤系
remains of plant, gymnosperm, seed, megaspore, micro- and submi-crostructure
