Origin of Life: stromatolites

Around 3.5 billion years ago. The Earth cooled enough for life at 4 billion years ago:-http://www.sciencedaily.com/releases/2013/05/130528143756.htm

Complete thread:

Origin of Life: information? David Turell 2012-12-14, 12:45 AM
- Origin of Life: zinc David Turell 2012-12-24, 03:52 PM
  - Origin of Life: chemical cycles David Turell 2012-12-27, 02:57 PM
    - Origin of Life: flying pigs David Turell 2012-12-27, 04:02 PM
      - Origin of Life: Defining life David Turell 2012-12-27, 05:48 PM
        
        Origin of Life: Very early David Turell 2013-01-04, 03:56 PM
        
        Origin of Life: fat globules David Turell 2013-01-11, 03:16 PM
        
        Origin of Life: enzymes David Turell 2013-01-31, 04:02 PM
        
        Origin of Life: phosphate David Turell 2013-04-05, 02:01 PM
        
        Origin of Life: salt & amino acids David Turell 2013-04-06, 02:56 PM
        
        Origin of Life: stromatolites David Turell 2013-05-30, 03:15 PM
        
        Origin of Life: phosphates David Turell 2013-06-04, 10:22 PM
        
        Origin of Life: comets David Turell 2013-06-06, 03:08 PM
        
        Origin of Life: borates David Turell 2013-06-11, 02:31 PM
        
        Origin of Life: HCN and uv light David Turell 2013-06-25, 03:02 PM
- Origin of Life: software David Turell 2013-04-21, 02:19 PM
  - Origin of Life: cells without walls David Turell 2013-07-04, 02:56 PM
    - Origin of Life: early land life David Turell 2013-07-23, 02:35 PM
      - Origin of Life: early land life Balance_Maintained 2013-07-23, 03:19 PM
        
        Origin of Life: early land life David Turell 2013-07-23, 05:16 PM
        
        Origin of Life: early land life Balance_Maintained 2013-07-27, 10:51 AM
        
        Origin of Life: early land life David Turell 2013-07-27, 01:47 PM
        
        Origin of Life: early land life Balance_Maintained 2013-07-27, 09:00 PM
        
        Origin of Life: early land life dhw 2013-07-28, 02:37 PM
        
        Origin of Life: early land life Balance_Maintained 2013-07-28, 08:37 PM
        
        Origin of Life: early land life dhw 2013-07-29, 02:09 PM
        
        Origin of Life: early land life Balance_Maintained 2013-07-30, 10:54 AM
        
        Origin of Life: early land life dhw 2013-07-30, 04:59 PM
        
        Origin of Life: early land life David Turell 2013-07-30, 05:44 PM
        
        Origin of Life: early land life Balance_Maintained 2013-08-03, 10:55 PM
        
        Origin of Life: early land life dhw 2013-08-04, 07:02 PM
        
        Origin of Life: early land life Balance_Maintained 2013-08-04, 09:53 PM
        
        Origin of Life: early land life dhw 2013-08-05, 10:25 AM
        
        Origin of Life: early land life Balance_Maintained 2013-08-07, 01:38 PM
        
        Origin of Life: early land life David Turell 2013-08-07, 02:27 PM
        
        Origin of Life: balance of nature David Turell 2013-08-07, 06:23 PM
        
        Origin of Life: early land life dhw 2013-08-08, 11:13 AM
        
        Origin of Life: early land life David Turell 2013-08-08, 02:26 PM
        
        Origin of Life: early land life dhw 2013-08-09, 08:06 AM
        
        Origin of Life: early land life David Turell 2013-08-09, 02:32 PM
        
        Origin of Life: early land life David Turell 2013-08-09, 02:53 PM
        
        Origin of Life: early land life dhw 2013-08-10, 07:46 AM
        
        Origin of Life: proof David Turell 2013-08-22, 02:07 PM
        
        Origin of Life: proof dhw 2013-08-23, 09:55 AM
        
        Origin of Life: from Mars? David Turell 2013-08-29, 08:04 PM
        
        Origin of Life: meteorite chemicals David Turell 2013-09-10, 05:35 PM
        
        Origin of Life: meteorite chemicals David Turell 2013-09-14, 02:58 PM
        
        Origin of Life: comets? David Turell 2013-09-16, 02:02 PM
        
        Origin of Life: whole cell David Turell 2013-09-19, 12:01 AM
        
        Origin of Life: whole cell David Turell 2013-09-21, 03:08 PM
        
        Origin of Life: whole cell dhw 2013-09-22, 06:07 PM
        
        Origin of Life: whole cell David Turell 2013-09-22, 08:32 PM
        
        Origin of Life: it needs solar system David Turell 2013-09-25, 02:05 PM
        
        Origin of Life: no oxygen David Turell 2013-09-26, 02:00 PM
        
        Origin of Life: no oxygen David Turell 2013-10-07, 02:27 PM
        
        Origin of Life: miracle? David Turell 2013-10-13, 02:35 PM
        
        Origin of Life: miracle? dhw 2013-10-14, 03:09 PM
        
        Origin of Life: miracle? David Turell 2013-10-14, 04:35 PM
        
        Origin of Life: miracle? David Turell 2013-10-23, 01:43 PM
        
        Origin of Life: man made pipedream David Turell 2013-10-24, 02:41 PM
        
        Origin of Life: man made pipedream David Turell 2013-11-06, 12:24 AM
        
        Origin of Life: earliest David Turell 2013-11-13, 12:49 AM
        
        Origin of Life: early minerals David Turell 2013-11-27, 03:27 PM
        
        Origin of Life: chemical problems David Turell 2013-12-16, 01:06 AM
        
        Origin of Life: Cold RNA world David Turell 2013-12-23, 04:04 PM
        
        Origin of Life: RNA world David Turell 2013-12-24, 05:56 PM
        
        Origin of Life: Extreme difficulties David Turell 2014-01-03, 02:36 AM
        
        Origin of Life: Extreme odds David Turell 2014-01-03, 05:40 AM
        
        Origin of Life: LUCA David Turell 2014-03-11, 03:04 PM
        
        Origin of Life: some current work David Turell 2014-03-11, 03:10 PM
        
        Origin of Life: LUCA dhw 2014-03-11, 08:20 PM
        
        Origin of Life: LUCA David Turell 2014-03-12, 01:12 AM
        
        Origin of Life: LUCA dhw 2014-03-13, 11:39 AM
        
        Origin of Life: LUCA David Turell 2014-03-13, 02:24 PM
        
        Origin of Life: LUCA David Turell 2014-03-18, 02:06 PM
        
        Origin of Life: Another dead end David Turell 2014-04-09, 03:18 PM
        
        Origin of Life: Another dead end romansh 2014-04-10, 02:21 AM
        
        Origin of Life: Another dead end David Turell 2014-04-10, 05:29 AM
        
        Origin of Life: how oxygen appeared David Turell 2014-09-05, 03:14 PM
        
        Origin of Life: Organic chemists don't know how David Turell 2014-10-15, 02:44 PM
        
        Origin of Life: Organic chemists don't know how Balance_Maintained 2014-10-16, 02:35 AM
        
        Origin of Life: Organic chemists don't know how David Turell 2014-10-16, 05:18 AM
        
        Origin of Life: Organic chemists don't know how dhw 2014-10-16, 08:28 PM
        
        Origin of Life: Organic chemists don't know how David Turell 2014-10-17, 01:21 AM
        
        Origin of Life: Organic chemists don't know how Balance_Maintained 2014-10-17, 02:26 AM
        
        Origin of Life: Organic chemists don't know how David Turell 2014-10-17, 05:04 AM
        
        Origin of Life: Organic chemists don't know how Balance_Maintained 2014-10-17, 07:46 PM
        
        Origin of Life: Organic chemists don't know how David Turell 2014-10-18, 12:19 AM
        
        Origin of Life: Organic chemists don't know how Balance_Maintained 2014-10-18, 12:52 AM
        
        Origin of Life: Organic chemists don't know how David Turell 2014-10-18, 04:05 AM
        
        Origin of Life: Organic chemists don't know how Balance_Maintained 2014-10-18, 04:54 AM
        
        Origin of Life: Organic chemists don't know how David Turell 2014-10-18, 10:45 AM
        
        Origin of Life: Organic chemists don't know how dhw 2014-10-17, 04:25 PM
        
        Origin of Life: Organic chemists don't know how David Turell 2014-10-17, 05:51 PM
        
        Origin of Life: Organic chemists don't know how Balance_Maintained 2014-10-17, 08:06 PM
        
        Origin of Life: Organic chemists don't know how dhw 2014-10-18, 05:20 PM
        
        Origin of Life: Organic chemists don't know how Balance_Maintained 2014-10-18, 08:32 PM
        
        Origin of Life: Pie in the sky research David Turell 2014-10-30, 02:52 PM
        
        Origin of Life: Continental drift! David Turell 2014-11-09, 12:18 AM
        
        Origin of Life: foolishness David Turell 2014-11-24, 02:16 PM
        
        Origin of Life: new RNAzyme David Turell 2014-12-05, 08:32 PM
        
        Origin of Life: zapping by laser David Turell 2014-12-09, 12:08 AM
        
        Origin of Life: oil droplets David Turell 2014-12-09, 03:07 PM
        
        Origin of Life: early atmosphere David Turell 2015-01-15, 03:21 PM
        
        Origin of Life: early atmosphere Balance_Maintained 2015-01-15, 04:14 PM
        
        Origin of Life: early atmosphere David Turell 2015-01-15, 07:07 PM
        
        Origin of Life: early atmosphere Balance_Maintained 2015-01-16, 03:27 PM
        
        Origin of Life: early atmosphere David Turell 2015-01-16, 06:18 PM
        
        Origin of Life: early atmosphere Balance_Maintained 2015-01-17, 02:17 PM
        
        Origin of Life: early atmosphere David Turell 2015-01-17, 02:47 PM
        
        Origin of Life: early atmosphere Balance_Maintained 2015-01-17, 03:20 PM
        
        Origin of Life: early atmosphere David Turell 2015-01-17, 09:30 PM
        
        Origin of Life: early atmosphere David Turell 2015-01-27, 05:38 PM
        
        Origin of Life: odds, chance vs. design David Turell 2015-02-06, 01:37 AM
        
        Origin of Life: how did plants get onto land David Turell 2015-12-20, 01:40 AM
        
        Origin of Life: early land life not long after the Cambrian David Turell 2018-04-30, 06:18 PM
        
        Origin of Life: early land life in algae fossil David Turell 2020-03-27, 12:33 AM
        
        Origin of Life: early land life in algae fossil dhw 2020-03-27, 12:11 PM
        
        Origin of Life: early land life in algae fossil David Turell 2020-03-27, 08:58 PM
        
        Origin of Life: early land life in algae fossil dhw 2020-03-28, 01:17 PM
        
        Origin of Life: early land life in algae fossil David Turell 2020-03-28, 08:15 PM
- Origin of Life: information? xeno6696 2013-12-16, 02:19 AM
  - Origin of Life: information? David Turell 2013-12-16, 05:30 AM

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Origin of Life: stromatolites (Introduction)