(5)Title: Pyrite framboids associated with the Mesozoic Jehol Biota in northeastern China: Implications for microenvironment during early fossilization Authors: Issue Date: 2003年 第13卷 第03期 Publisher: 自然科学进展(英文版) 电子链接:http://scholar.ilib.cn/A-zrkxjz-e200303009.html