Earth and Planetary Sciences
Record
100%
Carbon 14
100%
Oxygen 18
100%
Structural Basin
100%
Permian
100%
Fossil
100%
Brachiopod
100%
Australia
100%
Paleoenvironment
100%
Value
83%
Pangea
66%
Temperature
50%
Polar Region
50%
Tropics
33%
Sea Water
33%
Preservation
33%
Region
16%
Average
16%
Sample
16%
Difference
16%
Climate
16%
Condition
16%
Interval
16%
Microscopy
16%
North America
16%
Latitude
16%
Beach
16%
Siltstone
16%
Limestone
16%
Cathodoluminescence
16%
Electron Probe Analysis
16%
Sakmarian
16%
INIS
values
100%
oxygen isotopes
100%
carbon isotopes
100%
fossils
100%
shells
100%
australia
100%
oxygen 18
60%
seawater
40%
carbon 13
40%
preservation
40%
control
20%
climates
20%
north america
20%
luminescence
20%
microscopy
20%
coastal regions
20%
carbon 12
20%
carbon 16
20%
cathodoluminescence
20%
siltstones
20%
limestone
20%
electron microprobe analysis
20%
carbon 21
20%
carbon 22
20%