页岩 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "页岩" in Chinese language version.

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culture.tw

J.D. Vine and E.B. Tourtelot. Geochemistry of black shale deposits – A summary report. Economic Geology. 1970, 65 (3): 253–273. doi:10.2113/gsecongeo.65.3.253.
R.M. Coveney. Zinc concentrations in mid-continent Pennsylvanian black shales of Missouri and Kansas. Economic Geology. 1979, 74: 131–140. doi:10.2113/gsecongeo.74.1.131.
H.D. Holland. Metals in black shales – A reassessment. Economic Geology. 1979, 70 (7): 1676–1680. doi:10.2113/gsecongeo.74.7.1676.