Chapter 5-6 History geology of Precambrian前寒武纪的地史 5-6.1前寒武纪的划分和特征 Precam. subdivision and characteristics 5-62地球圈层的起源和演化 Origin and evolution of geospheres 5-6.3前寒武纪生物界 Precambrian organic kingdoms 5-6.4中国主要古大陆形成史 Paleocontinental formation of china 5-6.5中国震旦纪古地理和古构造 Sinian paleogeography and tectonopaleogeography
Chapter 5-6 History geology of Precambrian前寒武纪的地史 5-6.1 前寒武纪的划分和特征 Precam. subdivision and characteristics 5-6.2 地球圈层的起源和演化 Origin and evolution of geospheres 5-6.3 前寒武纪生物界 Precambrian organic kingdoms 5-6.4 中国主要古大陆形成史 Paleocontinental formation of China 5-6.5 中国震旦纪古地理和古构造 Sinian paleogeography and tectonopaleogeography
5-6.1前寒武纪的划分和特征 Precam, division and characteristics 5-6.11前寒武纪的划分 Precambrian subdivision 5-6.1.2前寒武纪的特征 Precambrian characteristics
5-6.1 前寒武纪的划分和特征 Precam. division and characteristics 5-6.1.1 前寒武纪的划分 Precambrian subdivision 5-6.1.2 前寒武纪的特征 Precambrian characteristics
2到Sinn,震且纪 542 伊迪卡拉纪+ Ediacaran Neo- Mesozoic Era(3.9%) Cenozoic Era(1, 4%) proterozoIc Cryogenian 85 Tonia Paleozoic Era(6.5%) 10 Eon Stenian Meso- 1200 Ectasia proterozoic 1400 Calymmian Hadean 1600 Statherian (13%) 二E 1800 Paleo. Rosarian 19 proterozoic[Rhyacian 2300 Siderian 18 2500 Neoarchean 17 Proterozoic Eon EC A Archean Eon (425%) 2800 meSoarchean 3200 Paleoarchean 12 3600 Eoarchean Lower imit is FIGURE 8.2 Geologic time represented on a 24-hour clock. no defined2004年 Precambrian time includes more than 21 hours on this clock or more than 88% of all geologic time
Sinian, Z, 震旦纪 2004年 伊迪卡拉纪
5-6.1.2 Precam features 1时限长(46-54亿年); Long duration 2地层普遍变质(麻粒岩相、角闪岩相、绿片岩相,一般越老变质越 深岩浆活动发育 Wide metamorphism& magmatism 3构造变形复杂,因为原始地壳薄、刚性差、热流值大,易塑 性变形,而且经历多期构造变动; Complicated deformation 4生物化石稀少; Molecular&soft- body fossils 5酸性和还原大气圈和水圈;Acid& anoxIc atmosphere and hydrosphere 6矿产丰富(Fe、A、U: Abundant mineral resources
5-6.1.2 Precam. features 1 时限长(46-5.4亿年)；Long duration 2 地层普遍变质 (麻粒岩相、角闪岩相、绿片岩相，一般越老变质越 深),岩浆活动发育;Wide metamorphism & magmatism 3 构造变形复杂，因为原始地壳薄、刚性差、热流值大，易塑 性变形，而且经历多期构造变动;Complicated deformation 4 生物化石稀少;Molecular & soft-body fossils 5 酸性和还原大气圈和水圈；Acid & anoxic atmosphere and hydrosphere 6 矿产丰富（Fe、Au、U);Abundant mineral resources
Chapter 5-6 History geology of Precambrian前寒武纪的地史 56.1前寒武纪的划分和特征 5-6.1 Precam subdivision and characteristics 562地球圈层的起源和演化 5-6.2 Origin and evolution of geospheres 563前寒武纪生物界 5-6.3 Precambrian organic kingdoms 564中国主要古大陆形成史 5-6. 4 Paleocontinental formation of china 565中国震旦纪古地理和古构造 5-6.5 Sinian paleogeography and tectonopaleogeography
Chapter 5-6 History geology of Precambrian前寒武纪的地史 5-6.1 前寒武纪的划分和特征 5-6.1 Precam. subdivision and characteristics 5-6.2 地球圈层的起源和演化 5-6.2 Origin and evolution of geospheres 5-6.3 前寒武纪生物界 5-6.3 Precambrian organic kingdoms 5-6.4 中国主要古大陆形成史 5-6.4 Paleocontinental formation of China 5-6.5 中国震旦纪古地理和古构造 5-6.5 Sinian paleogeography and tectonopaleogeography