论文部分内容阅读
当前世界上大孢子在地质、特别是在煤田地质、油气地质和古生态方面的应用愈来愈广泛。它作为孢粉学的一部分有着广阔的发展前景。孢子是植物的繁殖器官。异孢植物产生两种功能不同的孢子:雄性的个体比较小(其直径多数为25—100微米)称为小孢子;雌性的个体比较大(直径多在200—1000微米之间) 称为大孢子。有人认为有的大孢子个体也比较小,其直径只有70微米。而最大者的直径在 2000微米以上。对于埋藏于地层中的分散的化石孢子如果要区分其性别有时很困难,因此
Currently, the application of megaspore in geology, especially in coalfield geology, petroleum geology and paleoecology, is more and more widespread. It has a bright future as a part of palynology. Spores are the plant’s reproductive organs. Sporophytes produce two spores of different functions: the male is smaller (25-100 microns in diameter most) is called the microspore; and the female is larger (more than 200-1000 microns in diameter) spore. Some people think that some megaspore individual is relatively small, its diameter is only 70 microns. The largest diameter of more than 2000 microns. For the scattered fossil spores buried in the formation, if it is sometimes difficult to distinguish the gender, so