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The genesis of the large Dabaiyang Au-Te deposit in the North China Craton: Insights from deposit geology, pyrite geochemistry and S-O isotope
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DOI：10.1016/j.oregeorev.2026.107384.png)
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Abstract
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• The δ18O analyses of K-feldspar reveal a magmatic source for the initial fluids. • A two-stage model is proposed, involving invisible Au enrichment in pre-ore, As-rich pyrite and syn-ore visible Au precipitation facilitated by fluid boiling, mixing and Te-rich metallic melts. • The Dabaiyang deposit is reclassified as an oxidized intrusion-related gold system rather than an epithermal deposit.
Keywords:
Fluid source
Au enrichment process
Trace element and δ34S of pyrite
δ18O of K-feldspar
Dabaiyang Au-Te deposit
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