Study on the Mechanism of Organic Matter Enrichment in Early Cambrian Marine Shales in the Lower Yangtze Area, South China: An Example Using Well JXY1

Table 2

Conversion of δ¹⁸O values under the PDB standard and SMOW standard and calculation results of paleoseawater temperature.

No.	δ^18O (‰)		Paleotemperature of seawater (°C)
	PDB	SMOW	By Equation (4)	By Equation (5)
1	-10.47	20.07	90.54	86.71
2	-13.59	16.85	118.56	99.92