Significance of crinoid preservation: Clare Shale Formation (Upper Carboniferous), Fisherstreet Bay, Doolin, County Clare, Ireland [0.03%]
海百合保存的意义：爱尔兰克拉里郡杜林费舍尔街湾上石炭统的clare页岩组
Stephen K Donovan,Eamon N Doyle
Stephen K Donovan
Some fossils, such as crinoid stems, are not widely appreciated by collectors and researchers, yet can provide unique data regarding taphonomy and palaeoecology. A long crinoid pluricolumnal showing a distinctive pattern of preservation was...
Evolution of the atmosphere [0.03%]
大气的演化
J F Nunn
J F Nunn
Planetary atmospheres depend fundamentally upon their geochemical inventory, temperature and the ability of their gravitational field to retain gases. In the case of Earth and other inner planets, early outgassing released mainly carbon dio...