Assessing the biogenicity and syngenicity of candidate bioalteration textures in pillow lavas of the -2.52 Ga Wutai greenstone terrane of China

• 来源期刊: 科学通报(英文版)
• 学科: 地球科学
• 关键词: 枕状熔岩 候选人 绿岩带 纹理 中国 电感耦合等离子体质谱 五台山 地体
• 年，卷（期）: 2010,（2）
• 所属期刊栏目: ARTICLES
• 页码范围: 188-199
• 页数: 12页
• 分类号: P588.1 P618.510.5
• 语种: 英文

摘要

Microorganisms that inhabit sub-seafloor lavas are capable of etching volcanic glass and creating micron-sized tunnels and pits. Mineralization of these bioalteration traces ensures that these textures survive deformation and transformation of the host glass to metamorphic minerals. The fossil record of such bioalteration textures extends far beyond volcanic glass from in-situ oceanic crust to include meta-volcanic glass from ophiolites and Precambrian greenstone belts. Investigation of petrographic thin se...