Fig. 2: Potential changes in weathering intensity or regime across the Paleocene-Eocene Thermal Maximum (PETM), and comparisons with other geological events during the Phanerozoic. | Nature Communications

Fig. 2: Potential changes in weathering intensity or regime across the Paleocene-Eocene Thermal Maximum (PETM), and comparisons with other geological events during the Phanerozoic.

From: Changes in continental weathering regimes inhibited global marine deoxygenation during the Paleocene-Eocene thermal maximum

Fig. 2: Potential changes in weathering intensity or regime across the Paleocene-Eocene Thermal Maximum (PETM), and comparisons with other geological events during the Phanerozoic.

a The relationship between δ7Li and weathering intensity (W/D) (i.e., the boomerang shape) is obtained from compiled data from the modern river waters26,28,29 (gray data points, see Supplement Information for details). The estimated weathering intensities for the Hirnantian glaciation and the Middle Eocene Climate Optimum (MECO) are derived from refs. 30,98. b The schematic relationship between physical erosion and chemical weathering is modified from ref. 99.

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