CLP S(z): Chinese Loess Paleosol Geochemistry for the Last 800,000 Years

Compiled geochemical and grain size data from three sections (Zhaojiachaun, Fuxian, Luochuan) on the Chinese Loess Plateau spans the last 800,000 years. The dataset includes S(z) values, amorphous aluminum, silicon, iron, CBD iron, and grain size measurements. It supports research into Pleistocene atmospheric CO2 levels and equilibrium climate sensitivity across glacial and interglacial states.

Use Cases

• Reconstructing Pleistocene atmospheric CO2 levels using paleosol S(z) proxies.
• Analyzing climate state dependency by comparing glacial and interglacial geochemical data.
• Investigating weathering and pedogenic processes through amorphous element and grain size trends.
• Calibrating or testing climate models with empirical paleoclimate records from the last 800 kyr.

Strengths

• Data is directly linked to two peer-reviewed publications in Nature Communications (2019, 2025).
• Appends new, specific measurements for amorphous Al, Si, Fe, CBD Fe, and grain size to a published compilation.
• Cross-platform presence on figshare indicates recognized utility and sharing.

Limitations

• Column names and a precise row count are not provided, limiting immediate understanding of data structure.
• Metadata completeness is medium; the exact methodology for new appended data is not detailed.
• The dataset's 39KB file size suggests it is a focused compilation rather than a raw, high-volume data product.

Provenance

Source

Compilation from studies by Da et al. (2019, 2025), with new data appended by Hanzhao Zhai.

Collection Method

Likely derived from laboratory analysis of loess-paleosol sequence samples.

Time Range

Last 800,000 years (Pleistocene epoch).

Freshness

Last updated March 22, —2026.

Geography

Chinese Loess Plateau, specifically Zhaojiachaun, Fuxian, and Luochuan sections.