Major episodes of geologic change: correlations, time structure and possible causes

Earth & Environmental Sciences

• periodicity 93%
• planetesimal 85%
• seafloor 51%
• flood basalt 38%
• evaporite 33%
• solar system 33%
• sea level change 32%
• orogeny 32%
• rifting 30%
• crater 30%
• volcanism 29%
• energetics 28%
• volcanic eruption 26%
• sea level 24%
• dating 24%
• tectonics 20%
• mountain 20%
• ocean 18%
• climate 16%

Physics & Astronomy

• causes 57%
• sea floor spreading 57%
• periodic variations 36%
• sea level 35%
• protoplanets 34%
• extinction 22%
• tectonics 21%
• Milky Way Galaxy 19%
• basalt 19%
• cycles 17%
• dating 17%
• mountains 17%
• climate 16%
• volcanic eruptions 16%
• craters 15%
• oceans 14%
• solar system 13%
• deposits 12%
• intervals 9%

Chemical Compounds

• Spreading 100%
• Error 70%