Rodinia supercontinent persists. Trace fossils of simple multi-celledeukaryotes. First radiation of dinoflagellate-like acritarchs. Grenville Orogeny（英语：Grenville Orogeny） tapers off in North America. Pan-African orogeny in Africa. Lake Ruker / Nimrod Orogeny in Antarctica, 1000 ± 150 Ma. Edmundian Orogeny (c. 920 - 850 Ma), Gascoyne Complex（英语：Gascoyne Complex）, Western Australia. Adelaide Geosyncline（英语：Adelaide Geosyncline） laid down on Australian Continent, beginning of Adelaide Geosyncline (Delamerian Orogeny)（英语：Adelaide Geosyncline） in that continent.
Narrow highly metamorphic belts due to orogeny as Rodinia forms. Late Ruker / Nimrod Orogeny in Antarctica possibly begins. Musgrave Orogeny (c. 1080 Ma), Musgrave Block（英语：Musgrave Block）, Central Australia.
First complex single-celled life: protists with nuclei. Columbia is the primordial supercontinent. Kimban Orogeny in Australian Continent ends. Yapungku Orogeny on Yilgarn craton, in Western Australia. Mangaroon Orogeny, 1680–1620 Ma, on the Gascoyne Complex（英语：Gascoyne Complex） in Western Australia. Kararan Orogeny (1650-Ma), Gawler Craton, South Australia.
^Simon A. Wilde, John W. Valley, William H. Peck, and Colin M. Graham. Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4.4 Gyr ago. Nature. 2001, 409: 175–178. doi:10.1038/35051550.
^Manfred Schidlowsk. A 3,800-million-year isotopic record of life from carbon in sedimentary rocks. Nature. 1988, 333: 313 – 318. doi:10.1038/333313a0.
^Paleontologists often refer to faunal stage（英语：faunal stage）s rather than geologic (geological) periods. The stage nomenclature is quite complex. For an excellent time-ordered list of faunal stages, see . [2006-03-19]. （原始内容存档于2006-02-11）.
^Dates are slightly uncertain with differences of a few percent between various sources being common. This is largely due to uncertainties in 放射性定年法 and the problem that deposits suitable for radiometric dating seldom occur exactly at the places in the geologic column where they would be most useful. The dates and errors quoted above are according to the 國際地層委員會 2004 time scale. Dates labeled with a * indicate boundaries where a 全球界线层型剖面和点位 has been internationally agreed upon: see List of Global Boundary Stratotype Sections and Points（英语：List of Global Boundary Stratotype Sections and Points） for a complete list.
^Though commonly used, the Hadean is not a formal eon and no lower bound for the Archean and Eoarchean have been agreed upon. The Hadean has also sometimes been called the Priscoan or the Azoic. Sometimes, the Hadean can be found to be subdivided according to the lunar geologic time scale. These eras include the Cryptic and Basin Groups (which are subdivisions of the Pre-Nectarian era), Nectarian, and Early Imbrian（英语：Early Imbrian） units.
^ 11.011.111.211.3These unit names were taken from the Lunar geologic timescale and refer to geologic events that did not occur on Earth. Their use for Earth geology is unofficial.
^Bowring, Samuel A.; Williams, Ian S. Priscoan (4.00–4.03 Ga) orthogneisses from northwestern Canada. Contributions to Mineralogy and Petrology. 1999, 134 (1): 3. Bibcode:1999CoMP..134....3B. doi:10.1007/s004100050465. The oldest rock on Earth is the Acasta Gneiss（英语：Acasta Gneiss）, and it dates to 4.03 Ga, located in the Northwest Territories of Canada.
Valley, John W., William H. Peck, Elizabeth M. King (1999) Zircons Are Forever, The Outcrop for 1999, University of Wisconsin-Madison Wgeology.wisc.edu （页面存档备份，存于互联网档案馆） – Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4.4 Gyr ago Accessed Jan. 10, 2006
Wilde S.A., Valley J.W., Peck W.H. and Graham C.M.（2001）Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4.4 Gyr ago. Nature, v. 409, pp. 175-178.
Wyche, S., D. R. Nelson and A. Riganti (2004) 4350–3130 Ma detrital zircons in the Southern Cross Granite–Greenstone Terrane, Western Australia: implications for the early evolution of the Yilgarn Craton, Australian Journal of Earth Sciences Volume 51 Accessed Jan. 10, 2006
前寒武纪, 英語, precambrian, 是地質年代中, 對於顯生宙之前數個宙, 的非正式涵蓋統稱, 原本正式的名稱是隱生宙或隱生元, cryptozoic, 但後來拆分成冥古宙, 太古宙與元古宙三個時代, 開始於大約45億年前的地球形成時期, 結束於約5億4200萬年前大量肉眼可見的硬殼動物誕生之時, 4600, 0百万年前, 显生宙, 元古宙, 太古宙, 冥古宙地质年代地质年代查论编, 4500, 4000, 3500, 3000, 2500, 2000, 1500, 1000, 冥古宙太古宙元古宙显生宙始. 前寒武纪 英語 Precambrian 是地質年代中 對於顯生宙之前數個宙 eon 的非正式涵蓋統稱 原本正式的名稱是隱生宙或隱生元 Cryptozoic eon 但後來拆分成冥古宙 太古宙與元古宙三個時代 開始於大約45億年前的地球形成時期 結束於約5億4200萬年前大量肉眼可見的硬殼動物誕生之時 前寒武纪 4600 541 0 1 0百万年前 显生宙 元古宙 太古宙 冥古宙地质年代地质年代查论编 4500 4000 3500 3000 2500 2000 1500 1000 500 0 冥古宙太古宙元古宙显生宙始太古代古太古代中太古代新太古代古元古代中元古代新元古代古生代中生代新生代 单位 百万年前词源同义名Cryptozoic具体信息天体地球适用区域國際地層委員會适用时标ICS定义地质年代单位前宙年代地层单位前宇名称是否正式非正式下边界定义地球形成下边界GSSP位置N AGSSP批准时间N A上边界定义Treptichnus pedum 英语 Treptichnus pedum 遗迹化石出现上边界GSSP位置加拿大紐芬蘭47 04 34 N 55 49 52 W 47 0762 N 55 8310 W 47 0762 55 8310GSSP批准时间1992儘管前寒武紀佔了地球歷史中大約八分之七的時間 但人們對這段時期的了解相當少 這是因為前寒武紀少有化石紀錄 且其中多數的化石 如疊層石 只適合用來作生物地層學研究 1 此外 許多前寒武紀時期的岩石已經嚴重變質 使其起源變得晦澀不明 而其他的要不是已經腐蝕毀壞 就是還埋藏在顯生宙地層底下 1 2 大約在45億年前左右 原始的地球從環繞太陽的物質之中聚集而成 不久之後可能又因為小行星 大小如火星 的撞擊 而分離出月球 參見大碰撞說 一開始地球表面皆為岩漿覆蓋 穩固地殼則大約出現於44億年前 目前已知最古老的岩石發現於澳洲西部 放射性分析顯示一塊鋯石結晶已有大約44億400萬年歷史 3 目录 1 前寒武紀的生命 2 前寒武紀各時期 3 參考文獻 4 外部連結前寒武紀的生命 编辑目前並未明瞭生物究竟起源於何時 在格陵蘭西岸海外群島曾發現一些古老石頭 內含38億年前的碳 可能是早期的有機物 4 此外在澳洲西部有一些保存良好的細菌 年代已超過34億6000萬年 目前已知最早的複雜多細胞生命型態 可能出現於大約6億年前 而世界各地有許多5億4200萬年前到6億年前之間的軟體無殼動物化石 稱為埃迪卡拉生物群 Ediacaran biota 至於硬殼動物則出現於前寒武紀結束之後 大約在5億4400萬年前 也就是前寒武紀的結尾 出現了許多不同型態的動物 這些動物群統稱為小殼化石 英语 small shelly fauna 目前所知有限 寒武紀的極早期發生了寒武紀大爆發 生命型態的快速分化與數量增加 導致伯吉斯動物群 Burgess fauna 的出現 前寒武紀各時期 编辑前寒武纪中包含有成鐵紀 層侵紀 造山紀 固結紀 蓋層紀 延展紀 狹帶紀 拉伸紀 成冰紀與埃迪卡拉紀 之後的下一個時期寒武紀 則是顯生宙裡的第一代 era 第一紀 period 地球上已知最早的鋯石結晶經測試已有44億年歷史 其他隱生宙岩石紀錄有些來自月球或隕石 前寒武紀各時期 宙 代 纪 5 重大事件 年代 6 n亿年前元古宙 7 新元古代 7 埃迪卡拉纪 埃迪卡拉生物群 狄更遜水母等 埃迪卡拉紀末期滅絕事件 Good fossils of the first multi celled animals Ediacaran biota flourish worldwide in seas Simple trace fossils of possible worm like Trichophycus 英语 Trichophycus pedum etc First sponges and trilobitomorphs Enigmatic forms include many soft jellied creatures shaped like bags disks or quilts like Dickinsonia Taconic Orogeny 英语 Taconic Orogeny in North America Aravalli Range orogeny in Indian Subcontinent Beginning of Petermann Orogeny 英语 Petermann Orogeny on Australian Continent Beardmore Orogeny in Antarctica 633 620 Ma 6 3 5 4成冰纪 成冰紀冰河時期 形成雪球地球 該時期的化石依然稀有 Rodinia landmass begins to break up Late Ruker Nimrod Orogeny in Antarctica tapers off 8 5 6 3 8 拉伸纪 Rodinia supercontinent persists Trace fossils of simple multi celled eukaryotes First radiation of dinoflagellate like acritarchs Grenville Orogeny 英语 Grenville Orogeny tapers off in North America Pan African orogeny in Africa Lake Ruker Nimrod Orogeny in Antarctica 1000 150 Ma Edmundian Orogeny c 920 850 Ma Gascoyne Complex 英语 Gascoyne Complex Western Australia Adelaide Geosyncline 英语 Adelaide Geosyncline laid down on Australian Continent beginning of Adelaide Geosyncline Delamerian Orogeny 英语 Adelaide Geosyncline in that continent 10 8 5 8 中元古代 7 狭带纪 Narrow highly metamorphic belts due to orogeny as Rodinia forms Late Ruker Nimrod Orogeny in Antarctica possibly begins Musgrave Orogeny c 1080 Ma Musgrave Block 英语 Musgrave Block Central Australia 12 10 8 延展纪 Platform covers continue to expand Green algae colonies in the seas Grenville Orogeny 英语 Grenville Orogeny in North America 14 12 8 盖层纪 Platform covers expand Barramundi Orogeny McArthur Basin 英语 McArthur Basin Northern Australia 英语 Northern Australia and Isan Orogeny c 1600 Ma Mount Isa Block Queensland 16 14 8 古元古代 7 固结纪 First complex single celled life protists with nuclei Columbia is the primordial supercontinent Kimban Orogeny in Australian Continent ends Yapungku Orogeny on Yilgarn craton in Western Australia Mangaroon Orogeny 1680 1620 Ma on the Gascoyne Complex 英语 Gascoyne Complex in Western Australia Kararan Orogeny 1650 Ma Gawler Craton South Australia 18 16 8 造山纪 东亚呂梁構造期 25 18億年前 地球大气层开始含氧 弗里德堡隕石坑和索德柏立盆地发生了小行星撞击 发生了许多造山运动 如北美洲的 Penokean 英语 Penokean orogeny 和Trans Hudsonian Orogenies 英语 Trans Hudsonian Orogeny 南极洲的Early Ruker Orogeny 2000 1700 Ma Glenburgh Orogeny Glenburgh Terrane 英语 Gascoyne Complex 澳大利亚洲 约2005 1920 Ma 澳大利亚大陆的Kimban Orogeny Gawler craton 英语 Gawler craton 开始 20 5 18 8 层侵纪 地球在成铁纪和层侵纪之间进入休伦冰河时期 Huronian Makganyene glaciation 布什维尔德大火成岩省的杂岩 Bushveld Igneous Complex 形成 23 20 5 8 成铁纪 大氧化事件 帶狀鐵礦形成 在澳大利亞洲 格勞爾克拉通 英语 Gawler Craton 發生斯利福德造山運動2440 2420 Ma 25 23 8 太古宙 7 新太古代 7 大部分当今的大陆核心趋于稳定 可能发生地幔翻涌 第一次冰河期 南极洲Insell造山运动 2650 150 Ma 在现在的安大略和魁北克地区 Abitibi greenstone belt 英语 Abitibi greenstone belt 开始形成 并于2600Ma稳定下来 28 25 8 中太古代 7 最早的疊層石 大概由蓝藻群落形成 最早的 宏化石 英语 macrofossil 南极洲洪堡造山运动 第一個超大陸瓦巴拉大陸 在现在的安大略和魁北克地区 Blake River Megacaldera Complex 英语 Blake River Megacaldera Complex 开始形成 并持续至大约2696Ma 32 28 8 古太古代 7 已知最早的产氧细菌 最早的 确认 微化石 现存最古老的克拉通 比如加拿大地盾和皮尔布拉克拉通 或许形成于此阶段 9 南极洲雷纳造山运动 36 32 8 始太古代 7 地球表面凝固 大氣壓约10到100帕 单细胞生命 细菌与古菌 和最早的 疑似 微化石出现 38 36冥古宙 7 10 早雨海世 7 11 原始生命的间接光合作用证据 例如干酪根 该代与内太阳系的后期重轰炸期末期部分重叠 38 5 38酒海紀 7 11 本代的名称来源月球地質年代 由神酒海和其他更大的月海的撞击事件所组成 39 20 38 5盆地群代 7 11 已知最古老的岩石 4030 Ma 12 在地球大撞击晚期结束之后 最初的生命形式与自我复制 的RNA分子大約在40億年前開始出現 南极洲内皮尔開始出現造山运动 4000 200 Ma 41 5 39 2隐生代 7 11 地球形成 45 67 45 70亿年 月球形成 45 33亿年 可能来自大碰撞 已知最古老的矿物 锆石 44亿年前 13 45 7 41 5參考文獻 编辑 1 0 1 1 James Monroe and Reed Wicander The Changing Earth 2nd ed Belmont Wadsworth Publishing Company 1997 Pamela J W Gore The Precambrian 12 6 06 原始内容存档于2007 01 02 请检查 access date 中的日期值 帮助 Simon A Wilde John W Valley William H Peck and Colin M Graham Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4 4 Gyr ago Nature 2001 409 175 178 doi 10 1038 35051550 Manfred Schidlowsk A 3 800 million year isotopic record of life from carbon in sedimentary rocks Nature 1988 333 313 318 doi 10 1038 333313a0 Paleontologists often refer to faunal stage 英语 faunal stage s rather than geologic geological periods The stage nomenclature is quite complex For an excellent time ordered list of faunal stages see The Paleobiology Database 2006 03 19 原始内容存档于2006 02 11 Dates are slightly uncertain with differences of a few percent between various sources being common This is largely due to uncertainties in 放射性定年法 and the problem that deposits suitable for radiometric dating seldom occur exactly at the places in the geologic column where they would be most useful The dates and errors quoted above are according to the 國際地層委員會 2004 time scale Dates labeled with a indicate boundaries where a 全球界线层型剖面和点位 has been internationally agreed upon see List of Global Boundary Stratotype Sections and Points 英语 List of Global Boundary Stratotype Sections and Points for a complete list 7 00 7 01 7 02 7 03 7 04 7 05 7 06 7 07 7 08 7 09 7 10 7 11 7 12 7 13 The 元古宙 太古宙 and 冥古宙 are often collectively referred to as the Precambrian Time or sometimes also the Cryptozoic 8 00 8 01 8 02 8 03 8 04 8 05 8 06 8 07 8 08 8 09 8 10 8 11 Defined by absolute age Global Standard Stratigraphic Age The age of the oldest measurable craton or continental crust is dated to 3600 3800 Ma Though commonly used the Hadean is not a formal eon and no lower bound for the Archean and Eoarchean have been agreed upon The Hadean has also sometimes been called the Priscoan or the Azoic Sometimes the Hadean can be found to be subdivided according to the lunar geologic time scale These eras include the Cryptic and Basin Groups which are subdivisions of the Pre Nectarian era Nectarian and Early Imbrian 英语 Early Imbrian units 11 0 11 1 11 2 11 3 These unit names were taken from the Lunar geologic timescale and refer to geologic events that did not occur on Earth Their use for Earth geology is unofficial Bowring Samuel A Williams Ian S Priscoan 4 00 4 03 Ga orthogneisses from northwestern Canada Contributions to Mineralogy and Petrology 1999 134 1 3 Bibcode 1999CoMP 134 3B doi 10 1007 s004100050465 The oldest rock on Earth is the Acasta Gneiss 英语 Acasta Gneiss and it dates to 4 03 Ga located in the Northwest Territories of Canada Geology wisc edu PDF 2016 09 09 原始内容存档 PDF 于2020 09 02 Valley John W William H Peck Elizabeth M King 1999 Zircons Are Forever The Outcrop for 1999 University of Wisconsin Madison Wgeology wisc edu 页面存档备份 存于互联网档案馆 Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4 4 Gyr ago Accessed Jan 10 2006 Wilde S A Valley J W Peck W H and Graham C M 2001 Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4 4 Gyr ago Nature v 409 pp 175 178 Wyche S D R Nelson and A Riganti 2004 4350 3130 Ma detrital zircons in the Southern Cross Granite Greenstone Terrane Western Australia implications for the early evolution of the Yilgarn Craton Australian Journal of Earth Sciences Volume 51 Zircon ages from W Australia Absract Accessed Jan 10 2006外部連結 编辑维基共享资源中相关的多媒体资源 前寒武纪PALEOMAP Project Late Precambrian Supercontinent and Ice House World 页面存档备份 存于互联网档案馆 UCMP Berkley 页面存档备份 存于互联网档案馆 取自 https zh wikipedia org w index php title 前寒武纪 amp oldid 71298070, 维基百科，wiki，书籍，书籍，图书馆，
