Geochemical Data for 1.95 Ga S-Type Granites from the Helanshan Complex

Jie-Long Shen published geochemical and isotopic data for Paleoproterozoic S-type granites from the Helanshan Complex in the North China Craton. The dataset includes whole-rock geochemistry, zircon U-Pb dating results, and Nd isotopic data for samples with crystallization ages around 1.95 Ga. It was last updated on 2026-04-11 and is available under a CC-BY-4.0 license.

Use Cases

• Modeling granite petrogenesis based on whole-rock SiO2, TiO2, Fe2O3T, and MgO contents.
• Investigating crustal anatexis and sediment-derived magma sources using A/CNK ratios and Nd isotopic data.
• Reconstructing Paleoproterozoic tectonic transitions using zircon U-Pb age data for correlation with regional events.
• Analyzing compositional variation in S-type granites linked to restite entrainment as described in the study.

Strengths

• Includes specific geochemical ranges, such as SiO2 contents from 64.49 to 74.65 wt.% and A/CNK ratios from 1.08 to 1.75.
• Provides precise crystallization ages with reported uncertainties (e.g., 1956 ± 29 Ma).
• Data is associated with a detailed petrogenetic and tectonic interpretation published in the description.

Limitations

• Row count and specific column definitions are unknown, requiring inspection after download.
• The dataset's 931.7 KB size suggests a limited scope, likely containing a focused set of samples rather than a large survey.

Provenance

Source

Jie-Long Shen via figshare.

Collection Method

Data likely gathered through LA-ICP-MS zircon U-Pb dating and whole-rock geochemical and isotopic analysis as described.

Time Range

Paleoproterozoic, specifically circa 1.95 Ga.

Freshness

Last updated 2026-04-11 03:12:36.

Geography

Helanshan Complex within the Khondalite Belt, North China Craton.